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3 * Copyright © 2018 Google
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10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
31 #include "ac_shader_util.h"
33 #include "aco_builder.h"
34 #include "aco_interface.h"
35 #include "aco_instruction_selection_setup.cpp"
36 #include "util/fast_idiv_by_const.h"
41 class loop_info_RAII
{
43 unsigned header_idx_old
;
45 bool divergent_cont_old
;
46 bool divergent_branch_old
;
47 bool divergent_if_old
;
50 loop_info_RAII(isel_context
* ctx
, unsigned loop_header_idx
, Block
* loop_exit
)
52 header_idx_old(ctx
->cf_info
.parent_loop
.header_idx
), exit_old(ctx
->cf_info
.parent_loop
.exit
),
53 divergent_cont_old(ctx
->cf_info
.parent_loop
.has_divergent_continue
),
54 divergent_branch_old(ctx
->cf_info
.parent_loop
.has_divergent_branch
),
55 divergent_if_old(ctx
->cf_info
.parent_if
.is_divergent
)
57 ctx
->cf_info
.parent_loop
.header_idx
= loop_header_idx
;
58 ctx
->cf_info
.parent_loop
.exit
= loop_exit
;
59 ctx
->cf_info
.parent_loop
.has_divergent_continue
= false;
60 ctx
->cf_info
.parent_loop
.has_divergent_branch
= false;
61 ctx
->cf_info
.parent_if
.is_divergent
= false;
62 ctx
->cf_info
.loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
+ 1;
67 ctx
->cf_info
.parent_loop
.header_idx
= header_idx_old
;
68 ctx
->cf_info
.parent_loop
.exit
= exit_old
;
69 ctx
->cf_info
.parent_loop
.has_divergent_continue
= divergent_cont_old
;
70 ctx
->cf_info
.parent_loop
.has_divergent_branch
= divergent_branch_old
;
71 ctx
->cf_info
.parent_if
.is_divergent
= divergent_if_old
;
72 ctx
->cf_info
.loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
- 1;
73 if (!ctx
->cf_info
.loop_nest_depth
&& !ctx
->cf_info
.parent_if
.is_divergent
)
74 ctx
->cf_info
.exec_potentially_empty_discard
= false;
82 bool exec_potentially_empty_discard_old
;
83 bool exec_potentially_empty_break_old
;
84 uint16_t exec_potentially_empty_break_depth_old
;
88 bool then_branch_divergent
;
93 static bool visit_cf_list(struct isel_context
*ctx
,
94 struct exec_list
*list
);
96 static void add_logical_edge(unsigned pred_idx
, Block
*succ
)
98 succ
->logical_preds
.emplace_back(pred_idx
);
102 static void add_linear_edge(unsigned pred_idx
, Block
*succ
)
104 succ
->linear_preds
.emplace_back(pred_idx
);
107 static void add_edge(unsigned pred_idx
, Block
*succ
)
109 add_logical_edge(pred_idx
, succ
);
110 add_linear_edge(pred_idx
, succ
);
113 static void append_logical_start(Block
*b
)
115 Builder(NULL
, b
).pseudo(aco_opcode::p_logical_start
);
118 static void append_logical_end(Block
*b
)
120 Builder(NULL
, b
).pseudo(aco_opcode::p_logical_end
);
123 Temp
get_ssa_temp(struct isel_context
*ctx
, nir_ssa_def
*def
)
125 assert(ctx
->allocated
[def
->index
].id());
126 return ctx
->allocated
[def
->index
];
129 Temp
emit_mbcnt(isel_context
*ctx
, Definition dst
,
130 Operand mask_lo
= Operand((uint32_t) -1), Operand mask_hi
= Operand((uint32_t) -1))
132 Builder
bld(ctx
->program
, ctx
->block
);
133 Definition lo_def
= ctx
->program
->wave_size
== 32 ? dst
: bld
.def(v1
);
134 Temp thread_id_lo
= bld
.vop3(aco_opcode::v_mbcnt_lo_u32_b32
, lo_def
, mask_lo
, Operand(0u));
136 if (ctx
->program
->wave_size
== 32) {
139 Temp thread_id_hi
= bld
.vop3(aco_opcode::v_mbcnt_hi_u32_b32
, dst
, mask_hi
, thread_id_lo
);
144 Temp
emit_wqm(isel_context
*ctx
, Temp src
, Temp dst
=Temp(0, s1
), bool program_needs_wqm
= false)
146 Builder
bld(ctx
->program
, ctx
->block
);
149 dst
= bld
.tmp(src
.regClass());
151 assert(src
.size() == dst
.size());
153 if (ctx
->stage
!= fragment_fs
) {
157 bld
.copy(Definition(dst
), src
);
161 bld
.pseudo(aco_opcode::p_wqm
, Definition(dst
), src
);
162 ctx
->program
->needs_wqm
|= program_needs_wqm
;
166 static Temp
emit_bpermute(isel_context
*ctx
, Builder
&bld
, Temp index
, Temp data
)
168 if (index
.regClass() == s1
)
169 return bld
.readlane(bld
.def(s1
), data
, index
);
171 Temp index_x4
= bld
.vop2(aco_opcode::v_lshlrev_b32
, bld
.def(v1
), Operand(2u), index
);
173 /* Currently not implemented on GFX6-7 */
174 assert(ctx
->options
->chip_class
>= GFX8
);
176 if (ctx
->options
->chip_class
<= GFX9
|| ctx
->program
->wave_size
== 32) {
177 return bld
.ds(aco_opcode::ds_bpermute_b32
, bld
.def(v1
), index_x4
, data
);
180 /* GFX10, wave64 mode:
181 * The bpermute instruction is limited to half-wave operation, which means that it can't
182 * properly support subgroup shuffle like older generations (or wave32 mode), so we
185 if (!ctx
->has_gfx10_wave64_bpermute
) {
186 ctx
->has_gfx10_wave64_bpermute
= true;
187 ctx
->program
->config
->num_shared_vgprs
= 8; /* Shared VGPRs are allocated in groups of 8 */
188 ctx
->program
->vgpr_limit
-= 4; /* We allocate 8 shared VGPRs, so we'll have 4 fewer normal VGPRs */
191 Temp lane_id
= emit_mbcnt(ctx
, bld
.def(v1
));
192 Temp lane_is_hi
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(0x20u
), lane_id
);
193 Temp index_is_hi
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(0x20u
), index
);
194 Temp cmp
= bld
.vopc(aco_opcode::v_cmp_eq_u32
, bld
.def(bld
.lm
, vcc
), lane_is_hi
, index_is_hi
);
196 return bld
.reduction(aco_opcode::p_wave64_bpermute
, bld
.def(v1
), bld
.def(s2
), bld
.def(s1
, scc
),
197 bld
.vcc(cmp
), Operand(v2
.as_linear()), index_x4
, data
, gfx10_wave64_bpermute
);
200 Temp
as_vgpr(isel_context
*ctx
, Temp val
)
202 if (val
.type() == RegType::sgpr
) {
203 Builder
bld(ctx
->program
, ctx
->block
);
204 return bld
.copy(bld
.def(RegType::vgpr
, val
.size()), val
);
206 assert(val
.type() == RegType::vgpr
);
210 //assumes a != 0xffffffff
211 void emit_v_div_u32(isel_context
*ctx
, Temp dst
, Temp a
, uint32_t b
)
214 Builder
bld(ctx
->program
, ctx
->block
);
216 if (util_is_power_of_two_or_zero(b
)) {
217 bld
.vop2(aco_opcode::v_lshrrev_b32
, Definition(dst
), Operand((uint32_t)util_logbase2(b
)), a
);
221 util_fast_udiv_info info
= util_compute_fast_udiv_info(b
, 32, 32);
223 assert(info
.multiplier
<= 0xffffffff);
225 bool pre_shift
= info
.pre_shift
!= 0;
226 bool increment
= info
.increment
!= 0;
227 bool multiply
= true;
228 bool post_shift
= info
.post_shift
!= 0;
230 if (!pre_shift
&& !increment
&& !multiply
&& !post_shift
) {
231 bld
.vop1(aco_opcode::v_mov_b32
, Definition(dst
), a
);
235 Temp pre_shift_dst
= a
;
237 pre_shift_dst
= (increment
|| multiply
|| post_shift
) ? bld
.tmp(v1
) : dst
;
238 bld
.vop2(aco_opcode::v_lshrrev_b32
, Definition(pre_shift_dst
), Operand((uint32_t)info
.pre_shift
), a
);
241 Temp increment_dst
= pre_shift_dst
;
243 increment_dst
= (post_shift
|| multiply
) ? bld
.tmp(v1
) : dst
;
244 bld
.vadd32(Definition(increment_dst
), Operand((uint32_t) info
.increment
), pre_shift_dst
);
247 Temp multiply_dst
= increment_dst
;
249 multiply_dst
= post_shift
? bld
.tmp(v1
) : dst
;
250 bld
.vop3(aco_opcode::v_mul_hi_u32
, Definition(multiply_dst
), increment_dst
,
251 bld
.vop1(aco_opcode::v_mov_b32
, bld
.def(v1
), Operand((uint32_t)info
.multiplier
)));
255 bld
.vop2(aco_opcode::v_lshrrev_b32
, Definition(dst
), Operand((uint32_t)info
.post_shift
), multiply_dst
);
259 void emit_extract_vector(isel_context
* ctx
, Temp src
, uint32_t idx
, Temp dst
)
261 Builder
bld(ctx
->program
, ctx
->block
);
262 bld
.pseudo(aco_opcode::p_extract_vector
, Definition(dst
), src
, Operand(idx
));
266 Temp
emit_extract_vector(isel_context
* ctx
, Temp src
, uint32_t idx
, RegClass dst_rc
)
268 /* no need to extract the whole vector */
269 if (src
.regClass() == dst_rc
) {
273 assert(src
.size() > idx
);
274 Builder
bld(ctx
->program
, ctx
->block
);
275 auto it
= ctx
->allocated_vec
.find(src
.id());
276 /* the size check needs to be early because elements other than 0 may be garbage */
277 if (it
!= ctx
->allocated_vec
.end() && it
->second
[0].size() == dst_rc
.size()) {
278 if (it
->second
[idx
].regClass() == dst_rc
) {
279 return it
->second
[idx
];
281 assert(dst_rc
.size() == it
->second
[idx
].regClass().size());
282 assert(dst_rc
.type() == RegType::vgpr
&& it
->second
[idx
].type() == RegType::sgpr
);
283 return bld
.copy(bld
.def(dst_rc
), it
->second
[idx
]);
287 if (src
.size() == dst_rc
.size()) {
289 return bld
.copy(bld
.def(dst_rc
), src
);
291 Temp dst
= bld
.tmp(dst_rc
);
292 emit_extract_vector(ctx
, src
, idx
, dst
);
297 void emit_split_vector(isel_context
* ctx
, Temp vec_src
, unsigned num_components
)
299 if (num_components
== 1)
301 if (ctx
->allocated_vec
.find(vec_src
.id()) != ctx
->allocated_vec
.end())
303 aco_ptr
<Pseudo_instruction
> split
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_split_vector
, Format::PSEUDO
, 1, num_components
)};
304 split
->operands
[0] = Operand(vec_src
);
305 std::array
<Temp
,NIR_MAX_VEC_COMPONENTS
> elems
;
306 for (unsigned i
= 0; i
< num_components
; i
++) {
307 elems
[i
] = {ctx
->program
->allocateId(), RegClass(vec_src
.type(), vec_src
.size() / num_components
)};
308 split
->definitions
[i
] = Definition(elems
[i
]);
310 ctx
->block
->instructions
.emplace_back(std::move(split
));
311 ctx
->allocated_vec
.emplace(vec_src
.id(), elems
);
314 /* This vector expansion uses a mask to determine which elements in the new vector
315 * come from the original vector. The other elements are undefined. */
316 void expand_vector(isel_context
* ctx
, Temp vec_src
, Temp dst
, unsigned num_components
, unsigned mask
)
318 emit_split_vector(ctx
, vec_src
, util_bitcount(mask
));
323 Builder
bld(ctx
->program
, ctx
->block
);
324 if (num_components
== 1) {
325 if (dst
.type() == RegType::sgpr
)
326 bld
.pseudo(aco_opcode::p_as_uniform
, Definition(dst
), vec_src
);
328 bld
.copy(Definition(dst
), vec_src
);
332 unsigned component_size
= dst
.size() / num_components
;
333 std::array
<Temp
,NIR_MAX_VEC_COMPONENTS
> elems
;
335 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, num_components
, 1)};
336 vec
->definitions
[0] = Definition(dst
);
338 for (unsigned i
= 0; i
< num_components
; i
++) {
339 if (mask
& (1 << i
)) {
340 Temp src
= emit_extract_vector(ctx
, vec_src
, k
++, RegClass(vec_src
.type(), component_size
));
341 if (dst
.type() == RegType::sgpr
)
342 src
= bld
.as_uniform(src
);
343 vec
->operands
[i
] = Operand(src
);
345 vec
->operands
[i
] = Operand(0u);
347 elems
[i
] = vec
->operands
[i
].getTemp();
349 ctx
->block
->instructions
.emplace_back(std::move(vec
));
350 ctx
->allocated_vec
.emplace(dst
.id(), elems
);
353 Temp
bool_to_vector_condition(isel_context
*ctx
, Temp val
, Temp dst
= Temp(0, s2
))
355 Builder
bld(ctx
->program
, ctx
->block
);
357 dst
= bld
.tmp(bld
.lm
);
359 assert(val
.regClass() == s1
);
360 assert(dst
.regClass() == bld
.lm
);
362 return bld
.sop2(Builder::s_cselect
, Definition(dst
), Operand((uint32_t) -1), Operand(0u), bld
.scc(val
));
365 Temp
bool_to_scalar_condition(isel_context
*ctx
, Temp val
, Temp dst
= Temp(0, s1
))
367 Builder
bld(ctx
->program
, ctx
->block
);
371 assert(val
.regClass() == bld
.lm
);
372 assert(dst
.regClass() == s1
);
374 /* if we're currently in WQM mode, ensure that the source is also computed in WQM */
375 Temp tmp
= bld
.tmp(s1
);
376 bld
.sop2(Builder::s_and
, bld
.def(bld
.lm
), bld
.scc(Definition(tmp
)), val
, Operand(exec
, bld
.lm
));
377 return emit_wqm(ctx
, tmp
, dst
);
380 Temp
get_alu_src(struct isel_context
*ctx
, nir_alu_src src
, unsigned size
=1)
382 if (src
.src
.ssa
->num_components
== 1 && src
.swizzle
[0] == 0 && size
== 1)
383 return get_ssa_temp(ctx
, src
.src
.ssa
);
385 if (src
.src
.ssa
->num_components
== size
) {
386 bool identity_swizzle
= true;
387 for (unsigned i
= 0; identity_swizzle
&& i
< size
; i
++) {
388 if (src
.swizzle
[i
] != i
)
389 identity_swizzle
= false;
391 if (identity_swizzle
)
392 return get_ssa_temp(ctx
, src
.src
.ssa
);
395 Temp vec
= get_ssa_temp(ctx
, src
.src
.ssa
);
396 unsigned elem_size
= vec
.size() / src
.src
.ssa
->num_components
;
397 assert(elem_size
> 0); /* TODO: 8 and 16-bit vectors not supported */
398 assert(vec
.size() % elem_size
== 0);
400 RegClass elem_rc
= RegClass(vec
.type(), elem_size
);
402 return emit_extract_vector(ctx
, vec
, src
.swizzle
[0], elem_rc
);
405 std::array
<Temp
,NIR_MAX_VEC_COMPONENTS
> elems
;
406 aco_ptr
<Pseudo_instruction
> vec_instr
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, size
, 1)};
407 for (unsigned i
= 0; i
< size
; ++i
) {
408 elems
[i
] = emit_extract_vector(ctx
, vec
, src
.swizzle
[i
], elem_rc
);
409 vec_instr
->operands
[i
] = Operand
{elems
[i
]};
411 Temp dst
{ctx
->program
->allocateId(), RegClass(vec
.type(), elem_size
* size
)};
412 vec_instr
->definitions
[0] = Definition(dst
);
413 ctx
->block
->instructions
.emplace_back(std::move(vec_instr
));
414 ctx
->allocated_vec
.emplace(dst
.id(), elems
);
419 Temp
convert_pointer_to_64_bit(isel_context
*ctx
, Temp ptr
)
423 Builder
bld(ctx
->program
, ctx
->block
);
424 if (ptr
.type() == RegType::vgpr
)
425 ptr
= bld
.vop1(aco_opcode::v_readfirstlane_b32
, bld
.def(s1
), ptr
);
426 return bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s2
),
427 ptr
, Operand((unsigned)ctx
->options
->address32_hi
));
430 void emit_sop2_instruction(isel_context
*ctx
, nir_alu_instr
*instr
, aco_opcode op
, Temp dst
, bool writes_scc
)
432 aco_ptr
<SOP2_instruction
> sop2
{create_instruction
<SOP2_instruction
>(op
, Format::SOP2
, 2, writes_scc
? 2 : 1)};
433 sop2
->operands
[0] = Operand(get_alu_src(ctx
, instr
->src
[0]));
434 sop2
->operands
[1] = Operand(get_alu_src(ctx
, instr
->src
[1]));
435 sop2
->definitions
[0] = Definition(dst
);
437 sop2
->definitions
[1] = Definition(ctx
->program
->allocateId(), scc
, s1
);
438 ctx
->block
->instructions
.emplace_back(std::move(sop2
));
441 void emit_vop2_instruction(isel_context
*ctx
, nir_alu_instr
*instr
, aco_opcode op
, Temp dst
,
442 bool commutative
, bool swap_srcs
=false, bool flush_denorms
= false)
444 Builder
bld(ctx
->program
, ctx
->block
);
445 Temp src0
= get_alu_src(ctx
, instr
->src
[swap_srcs
? 1 : 0]);
446 Temp src1
= get_alu_src(ctx
, instr
->src
[swap_srcs
? 0 : 1]);
447 if (src1
.type() == RegType::sgpr
) {
448 if (commutative
&& src0
.type() == RegType::vgpr
) {
452 } else if (src0
.type() == RegType::vgpr
&&
453 op
!= aco_opcode::v_madmk_f32
&&
454 op
!= aco_opcode::v_madak_f32
&&
455 op
!= aco_opcode::v_madmk_f16
&&
456 op
!= aco_opcode::v_madak_f16
) {
457 /* If the instruction is not commutative, we emit a VOP3A instruction */
458 bld
.vop2_e64(op
, Definition(dst
), src0
, src1
);
461 src1
= bld
.copy(bld
.def(RegType::vgpr
, src1
.size()), src1
); //TODO: as_vgpr
465 if (flush_denorms
&& ctx
->program
->chip_class
< GFX9
) {
466 assert(dst
.size() == 1);
467 Temp tmp
= bld
.vop2(op
, bld
.def(v1
), src0
, src1
);
468 bld
.vop2(aco_opcode::v_mul_f32
, Definition(dst
), Operand(0x3f800000u
), tmp
);
470 bld
.vop2(op
, Definition(dst
), src0
, src1
);
474 void emit_vop3a_instruction(isel_context
*ctx
, nir_alu_instr
*instr
, aco_opcode op
, Temp dst
,
475 bool flush_denorms
= false)
477 Temp src0
= get_alu_src(ctx
, instr
->src
[0]);
478 Temp src1
= get_alu_src(ctx
, instr
->src
[1]);
479 Temp src2
= get_alu_src(ctx
, instr
->src
[2]);
481 /* ensure that the instruction has at most 1 sgpr operand
482 * The optimizer will inline constants for us */
483 if (src0
.type() == RegType::sgpr
&& src1
.type() == RegType::sgpr
)
484 src0
= as_vgpr(ctx
, src0
);
485 if (src1
.type() == RegType::sgpr
&& src2
.type() == RegType::sgpr
)
486 src1
= as_vgpr(ctx
, src1
);
487 if (src2
.type() == RegType::sgpr
&& src0
.type() == RegType::sgpr
)
488 src2
= as_vgpr(ctx
, src2
);
490 Builder
bld(ctx
->program
, ctx
->block
);
491 if (flush_denorms
&& ctx
->program
->chip_class
< GFX9
) {
492 assert(dst
.size() == 1);
493 Temp tmp
= bld
.vop3(op
, Definition(dst
), src0
, src1
, src2
);
494 bld
.vop2(aco_opcode::v_mul_f32
, Definition(dst
), Operand(0x3f800000u
), tmp
);
496 bld
.vop3(op
, Definition(dst
), src0
, src1
, src2
);
500 void emit_vop1_instruction(isel_context
*ctx
, nir_alu_instr
*instr
, aco_opcode op
, Temp dst
)
502 Builder
bld(ctx
->program
, ctx
->block
);
503 bld
.vop1(op
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]));
506 void emit_vopc_instruction(isel_context
*ctx
, nir_alu_instr
*instr
, aco_opcode op
, Temp dst
)
508 Temp src0
= get_alu_src(ctx
, instr
->src
[0]);
509 Temp src1
= get_alu_src(ctx
, instr
->src
[1]);
510 assert(src0
.size() == src1
.size());
512 aco_ptr
<Instruction
> vopc
;
513 if (src1
.type() == RegType::sgpr
) {
514 if (src0
.type() == RegType::vgpr
) {
515 /* to swap the operands, we might also have to change the opcode */
517 case aco_opcode::v_cmp_lt_f32
:
518 op
= aco_opcode::v_cmp_gt_f32
;
520 case aco_opcode::v_cmp_ge_f32
:
521 op
= aco_opcode::v_cmp_le_f32
;
523 case aco_opcode::v_cmp_lt_i32
:
524 op
= aco_opcode::v_cmp_gt_i32
;
526 case aco_opcode::v_cmp_ge_i32
:
527 op
= aco_opcode::v_cmp_le_i32
;
529 case aco_opcode::v_cmp_lt_u32
:
530 op
= aco_opcode::v_cmp_gt_u32
;
532 case aco_opcode::v_cmp_ge_u32
:
533 op
= aco_opcode::v_cmp_le_u32
;
535 case aco_opcode::v_cmp_lt_f64
:
536 op
= aco_opcode::v_cmp_gt_f64
;
538 case aco_opcode::v_cmp_ge_f64
:
539 op
= aco_opcode::v_cmp_le_f64
;
541 case aco_opcode::v_cmp_lt_i64
:
542 op
= aco_opcode::v_cmp_gt_i64
;
544 case aco_opcode::v_cmp_ge_i64
:
545 op
= aco_opcode::v_cmp_le_i64
;
547 case aco_opcode::v_cmp_lt_u64
:
548 op
= aco_opcode::v_cmp_gt_u64
;
550 case aco_opcode::v_cmp_ge_u64
:
551 op
= aco_opcode::v_cmp_le_u64
;
553 default: /* eq and ne are commutative */
560 src1
= as_vgpr(ctx
, src1
);
564 Builder
bld(ctx
->program
, ctx
->block
);
565 bld
.vopc(op
, bld
.hint_vcc(Definition(dst
)), src0
, src1
);
568 void emit_sopc_instruction(isel_context
*ctx
, nir_alu_instr
*instr
, aco_opcode op
, Temp dst
)
570 Temp src0
= get_alu_src(ctx
, instr
->src
[0]);
571 Temp src1
= get_alu_src(ctx
, instr
->src
[1]);
572 Builder
bld(ctx
->program
, ctx
->block
);
574 assert(dst
.regClass() == bld
.lm
);
575 assert(src0
.type() == RegType::sgpr
);
576 assert(src1
.type() == RegType::sgpr
);
577 assert(src0
.regClass() == src1
.regClass());
579 /* Emit the SALU comparison instruction */
580 Temp cmp
= bld
.sopc(op
, bld
.scc(bld
.def(s1
)), src0
, src1
);
581 /* Turn the result into a per-lane bool */
582 bool_to_vector_condition(ctx
, cmp
, dst
);
585 void emit_comparison(isel_context
*ctx
, nir_alu_instr
*instr
, Temp dst
,
586 aco_opcode v32_op
, aco_opcode v64_op
, aco_opcode s32_op
= aco_opcode::num_opcodes
, aco_opcode s64_op
= aco_opcode::num_opcodes
)
588 aco_opcode s_op
= instr
->src
[0].src
.ssa
->bit_size
== 64 ? s64_op
: s32_op
;
589 aco_opcode v_op
= instr
->src
[0].src
.ssa
->bit_size
== 64 ? v64_op
: v32_op
;
590 bool divergent_vals
= ctx
->divergent_vals
[instr
->dest
.dest
.ssa
.index
];
591 bool use_valu
= s_op
== aco_opcode::num_opcodes
||
593 ctx
->allocated
[instr
->src
[0].src
.ssa
->index
].type() == RegType::vgpr
||
594 ctx
->allocated
[instr
->src
[1].src
.ssa
->index
].type() == RegType::vgpr
;
595 aco_opcode op
= use_valu
? v_op
: s_op
;
596 assert(op
!= aco_opcode::num_opcodes
);
597 assert(dst
.regClass() == ctx
->program
->lane_mask
);
600 emit_vopc_instruction(ctx
, instr
, op
, dst
);
602 emit_sopc_instruction(ctx
, instr
, op
, dst
);
605 void emit_boolean_logic(isel_context
*ctx
, nir_alu_instr
*instr
, Builder::WaveSpecificOpcode op
, Temp dst
)
607 Builder
bld(ctx
->program
, ctx
->block
);
608 Temp src0
= get_alu_src(ctx
, instr
->src
[0]);
609 Temp src1
= get_alu_src(ctx
, instr
->src
[1]);
611 assert(dst
.regClass() == bld
.lm
);
612 assert(src0
.regClass() == bld
.lm
);
613 assert(src1
.regClass() == bld
.lm
);
615 bld
.sop2(op
, Definition(dst
), bld
.def(s1
, scc
), src0
, src1
);
618 void emit_bcsel(isel_context
*ctx
, nir_alu_instr
*instr
, Temp dst
)
620 Builder
bld(ctx
->program
, ctx
->block
);
621 Temp cond
= get_alu_src(ctx
, instr
->src
[0]);
622 Temp then
= get_alu_src(ctx
, instr
->src
[1]);
623 Temp els
= get_alu_src(ctx
, instr
->src
[2]);
625 assert(cond
.regClass() == bld
.lm
);
627 if (dst
.type() == RegType::vgpr
) {
628 aco_ptr
<Instruction
> bcsel
;
629 if (dst
.size() == 1) {
630 then
= as_vgpr(ctx
, then
);
631 els
= as_vgpr(ctx
, els
);
633 bld
.vop2(aco_opcode::v_cndmask_b32
, Definition(dst
), els
, then
, cond
);
634 } else if (dst
.size() == 2) {
635 Temp then_lo
= bld
.tmp(v1
), then_hi
= bld
.tmp(v1
);
636 bld
.pseudo(aco_opcode::p_split_vector
, Definition(then_lo
), Definition(then_hi
), then
);
637 Temp else_lo
= bld
.tmp(v1
), else_hi
= bld
.tmp(v1
);
638 bld
.pseudo(aco_opcode::p_split_vector
, Definition(else_lo
), Definition(else_hi
), els
);
640 Temp dst0
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), else_lo
, then_lo
, cond
);
641 Temp dst1
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), else_hi
, then_hi
, cond
);
643 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), dst0
, dst1
);
645 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
646 nir_print_instr(&instr
->instr
, stderr
);
647 fprintf(stderr
, "\n");
652 if (instr
->dest
.dest
.ssa
.bit_size
== 1) {
653 assert(dst
.regClass() == bld
.lm
);
654 assert(then
.regClass() == bld
.lm
);
655 assert(els
.regClass() == bld
.lm
);
658 if (!ctx
->divergent_vals
[instr
->src
[0].src
.ssa
->index
]) { /* uniform condition and values in sgpr */
659 if (dst
.regClass() == s1
|| dst
.regClass() == s2
) {
660 assert((then
.regClass() == s1
|| then
.regClass() == s2
) && els
.regClass() == then
.regClass());
661 assert(dst
.size() == then
.size());
662 aco_opcode op
= dst
.regClass() == s1
? aco_opcode::s_cselect_b32
: aco_opcode::s_cselect_b64
;
663 bld
.sop2(op
, Definition(dst
), then
, els
, bld
.scc(bool_to_scalar_condition(ctx
, cond
)));
665 fprintf(stderr
, "Unimplemented uniform bcsel bit size: ");
666 nir_print_instr(&instr
->instr
, stderr
);
667 fprintf(stderr
, "\n");
672 /* divergent boolean bcsel
673 * this implements bcsel on bools: dst = s0 ? s1 : s2
674 * are going to be: dst = (s0 & s1) | (~s0 & s2) */
675 assert(instr
->dest
.dest
.ssa
.bit_size
== 1);
677 if (cond
.id() != then
.id())
678 then
= bld
.sop2(Builder::s_and
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), cond
, then
);
680 if (cond
.id() == els
.id())
681 bld
.sop1(Builder::s_mov
, Definition(dst
), then
);
683 bld
.sop2(Builder::s_or
, Definition(dst
), bld
.def(s1
, scc
), then
,
684 bld
.sop2(Builder::s_andn2
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), els
, cond
));
687 void emit_scaled_op(isel_context
*ctx
, Builder
& bld
, Definition dst
, Temp val
,
688 aco_opcode op
, uint32_t undo
)
690 /* multiply by 16777216 to handle denormals */
691 Temp is_denormal
= bld
.vopc(aco_opcode::v_cmp_class_f32
, bld
.hint_vcc(bld
.def(bld
.lm
)),
692 as_vgpr(ctx
, val
), bld
.copy(bld
.def(v1
), Operand((1u << 7) | (1u << 4))));
693 Temp scaled
= bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), Operand(0x4b800000u
), val
);
694 scaled
= bld
.vop1(op
, bld
.def(v1
), scaled
);
695 scaled
= bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), Operand(undo
), scaled
);
697 Temp not_scaled
= bld
.vop1(op
, bld
.def(v1
), val
);
699 bld
.vop2(aco_opcode::v_cndmask_b32
, dst
, not_scaled
, scaled
, is_denormal
);
702 void emit_rcp(isel_context
*ctx
, Builder
& bld
, Definition dst
, Temp val
)
704 if (ctx
->block
->fp_mode
.denorm32
== 0) {
705 bld
.vop1(aco_opcode::v_rcp_f32
, dst
, val
);
709 emit_scaled_op(ctx
, bld
, dst
, val
, aco_opcode::v_rcp_f32
, 0x4b800000u
);
712 void emit_rsq(isel_context
*ctx
, Builder
& bld
, Definition dst
, Temp val
)
714 if (ctx
->block
->fp_mode
.denorm32
== 0) {
715 bld
.vop1(aco_opcode::v_rsq_f32
, dst
, val
);
719 emit_scaled_op(ctx
, bld
, dst
, val
, aco_opcode::v_rsq_f32
, 0x45800000u
);
722 void emit_sqrt(isel_context
*ctx
, Builder
& bld
, Definition dst
, Temp val
)
724 if (ctx
->block
->fp_mode
.denorm32
== 0) {
725 bld
.vop1(aco_opcode::v_sqrt_f32
, dst
, val
);
729 emit_scaled_op(ctx
, bld
, dst
, val
, aco_opcode::v_sqrt_f32
, 0x39800000u
);
732 void emit_log2(isel_context
*ctx
, Builder
& bld
, Definition dst
, Temp val
)
734 if (ctx
->block
->fp_mode
.denorm32
== 0) {
735 bld
.vop1(aco_opcode::v_log_f32
, dst
, val
);
739 emit_scaled_op(ctx
, bld
, dst
, val
, aco_opcode::v_log_f32
, 0xc1c00000u
);
742 Temp
emit_trunc_f64(isel_context
*ctx
, Builder
& bld
, Definition dst
, Temp val
)
744 if (ctx
->options
->chip_class
>= GFX7
)
745 return bld
.vop1(aco_opcode::v_trunc_f64
, Definition(dst
), val
);
747 /* GFX6 doesn't support V_TRUNC_F64, lower it. */
748 /* TODO: create more efficient code! */
749 if (val
.type() == RegType::sgpr
)
750 val
= as_vgpr(ctx
, val
);
752 /* Split the input value. */
753 Temp val_lo
= bld
.tmp(v1
), val_hi
= bld
.tmp(v1
);
754 bld
.pseudo(aco_opcode::p_split_vector
, Definition(val_lo
), Definition(val_hi
), val
);
756 /* Extract the exponent and compute the unbiased value. */
757 Temp exponent
= bld
.vop1(aco_opcode::v_frexp_exp_i32_f64
, bld
.def(v1
), val
);
759 /* Extract the fractional part. */
760 Temp fract_mask
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), Operand(-1u), Operand(0x000fffffu
));
761 fract_mask
= bld
.vop3(aco_opcode::v_lshr_b64
, bld
.def(v2
), fract_mask
, exponent
);
763 Temp fract_mask_lo
= bld
.tmp(v1
), fract_mask_hi
= bld
.tmp(v1
);
764 bld
.pseudo(aco_opcode::p_split_vector
, Definition(fract_mask_lo
), Definition(fract_mask_hi
), fract_mask
);
766 Temp fract_lo
= bld
.tmp(v1
), fract_hi
= bld
.tmp(v1
);
767 Temp tmp
= bld
.vop1(aco_opcode::v_not_b32
, bld
.def(v1
), fract_mask_lo
);
768 fract_lo
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), val_lo
, tmp
);
769 tmp
= bld
.vop1(aco_opcode::v_not_b32
, bld
.def(v1
), fract_mask_hi
);
770 fract_hi
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), val_hi
, tmp
);
772 /* Get the sign bit. */
773 Temp sign
= bld
.vop2(aco_opcode::v_ashr_i32
, bld
.def(v1
), Operand(31u), val_hi
);
775 /* Decide the operation to apply depending on the unbiased exponent. */
776 Temp exp_lt0
= bld
.vopc_e64(aco_opcode::v_cmp_lt_i32
, bld
.hint_vcc(bld
.def(bld
.lm
)), exponent
, Operand(0u));
777 Temp dst_lo
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), fract_lo
, bld
.copy(bld
.def(v1
), Operand(0u)), exp_lt0
);
778 Temp dst_hi
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), fract_hi
, sign
, exp_lt0
);
779 Temp exp_gt51
= bld
.vopc_e64(aco_opcode::v_cmp_gt_i32
, bld
.def(s2
), exponent
, Operand(51u));
780 dst_lo
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), dst_lo
, val_lo
, exp_gt51
);
781 dst_hi
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), dst_hi
, val_hi
, exp_gt51
);
783 return bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), dst_lo
, dst_hi
);
786 Temp
emit_floor_f64(isel_context
*ctx
, Builder
& bld
, Definition dst
, Temp val
)
788 if (ctx
->options
->chip_class
>= GFX7
)
789 return bld
.vop1(aco_opcode::v_floor_f64
, Definition(dst
), val
);
791 /* GFX6 doesn't support V_FLOOR_F64, lower it. */
792 Temp src0
= as_vgpr(ctx
, val
);
794 Temp mask
= bld
.copy(bld
.def(s1
), Operand(3u)); /* isnan */
795 Temp min_val
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s2
), Operand(-1u), Operand(0x3fefffffu
));
797 Temp isnan
= bld
.vopc_e64(aco_opcode::v_cmp_class_f64
, bld
.hint_vcc(bld
.def(bld
.lm
)), src0
, mask
);
798 Temp fract
= bld
.vop1(aco_opcode::v_fract_f64
, bld
.def(v2
), src0
);
799 Temp min
= bld
.vop3(aco_opcode::v_min_f64
, bld
.def(v2
), fract
, min_val
);
801 Temp then_lo
= bld
.tmp(v1
), then_hi
= bld
.tmp(v1
);
802 bld
.pseudo(aco_opcode::p_split_vector
, Definition(then_lo
), Definition(then_hi
), src0
);
803 Temp else_lo
= bld
.tmp(v1
), else_hi
= bld
.tmp(v1
);
804 bld
.pseudo(aco_opcode::p_split_vector
, Definition(else_lo
), Definition(else_hi
), min
);
806 Temp dst0
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), else_lo
, then_lo
, isnan
);
807 Temp dst1
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), else_hi
, then_hi
, isnan
);
809 Temp v
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), dst0
, dst1
);
811 Instruction
* add
= bld
.vop3(aco_opcode::v_add_f64
, Definition(dst
), src0
, v
);
812 static_cast<VOP3A_instruction
*>(add
)->neg
[1] = true;
814 return add
->definitions
[0].getTemp();
817 void visit_alu_instr(isel_context
*ctx
, nir_alu_instr
*instr
)
819 if (!instr
->dest
.dest
.is_ssa
) {
820 fprintf(stderr
, "nir alu dst not in ssa: ");
821 nir_print_instr(&instr
->instr
, stderr
);
822 fprintf(stderr
, "\n");
825 Builder
bld(ctx
->program
, ctx
->block
);
826 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.dest
.ssa
);
831 std::array
<Temp
,NIR_MAX_VEC_COMPONENTS
> elems
;
832 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, instr
->dest
.dest
.ssa
.num_components
, 1)};
833 for (unsigned i
= 0; i
< instr
->dest
.dest
.ssa
.num_components
; ++i
) {
834 elems
[i
] = get_alu_src(ctx
, instr
->src
[i
]);
835 vec
->operands
[i
] = Operand
{elems
[i
]};
837 vec
->definitions
[0] = Definition(dst
);
838 ctx
->block
->instructions
.emplace_back(std::move(vec
));
839 ctx
->allocated_vec
.emplace(dst
.id(), elems
);
843 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
844 aco_ptr
<Instruction
> mov
;
845 if (dst
.type() == RegType::sgpr
) {
846 if (src
.type() == RegType::vgpr
)
847 bld
.pseudo(aco_opcode::p_as_uniform
, Definition(dst
), src
);
848 else if (src
.regClass() == s1
)
849 bld
.sop1(aco_opcode::s_mov_b32
, Definition(dst
), src
);
850 else if (src
.regClass() == s2
)
851 bld
.sop1(aco_opcode::s_mov_b64
, Definition(dst
), src
);
853 unreachable("wrong src register class for nir_op_imov");
854 } else if (dst
.regClass() == v1
) {
855 bld
.vop1(aco_opcode::v_mov_b32
, Definition(dst
), src
);
856 } else if (dst
.regClass() == v2
) {
857 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), src
);
859 nir_print_instr(&instr
->instr
, stderr
);
860 unreachable("Should have been lowered to scalar.");
865 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
866 if (instr
->dest
.dest
.ssa
.bit_size
== 1) {
867 assert(src
.regClass() == bld
.lm
);
868 assert(dst
.regClass() == bld
.lm
);
869 /* Don't use s_andn2 here, this allows the optimizer to make a better decision */
870 Temp tmp
= bld
.sop1(Builder::s_not
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), src
);
871 bld
.sop2(Builder::s_and
, Definition(dst
), bld
.def(s1
, scc
), tmp
, Operand(exec
, bld
.lm
));
872 } else if (dst
.regClass() == v1
) {
873 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_not_b32
, dst
);
874 } else if (dst
.type() == RegType::sgpr
) {
875 aco_opcode opcode
= dst
.size() == 1 ? aco_opcode::s_not_b32
: aco_opcode::s_not_b64
;
876 bld
.sop1(opcode
, Definition(dst
), bld
.def(s1
, scc
), src
);
878 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
879 nir_print_instr(&instr
->instr
, stderr
);
880 fprintf(stderr
, "\n");
885 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
886 if (dst
.regClass() == v1
) {
887 bld
.vsub32(Definition(dst
), Operand(0u), Operand(src
));
888 } else if (dst
.regClass() == s1
) {
889 bld
.sop2(aco_opcode::s_mul_i32
, Definition(dst
), Operand((uint32_t) -1), src
);
890 } else if (dst
.size() == 2) {
891 Temp src0
= bld
.tmp(dst
.type(), 1);
892 Temp src1
= bld
.tmp(dst
.type(), 1);
893 bld
.pseudo(aco_opcode::p_split_vector
, Definition(src0
), Definition(src1
), src
);
895 if (dst
.regClass() == s2
) {
896 Temp carry
= bld
.tmp(s1
);
897 Temp dst0
= bld
.sop2(aco_opcode::s_sub_u32
, bld
.def(s1
), bld
.scc(Definition(carry
)), Operand(0u), src0
);
898 Temp dst1
= bld
.sop2(aco_opcode::s_subb_u32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(0u), src1
, carry
);
899 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), dst0
, dst1
);
901 Temp lower
= bld
.tmp(v1
);
902 Temp borrow
= bld
.vsub32(Definition(lower
), Operand(0u), src0
, true).def(1).getTemp();
903 Temp upper
= bld
.vsub32(bld
.def(v1
), Operand(0u), src1
, false, borrow
);
904 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lower
, upper
);
907 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
908 nir_print_instr(&instr
->instr
, stderr
);
909 fprintf(stderr
, "\n");
914 if (dst
.regClass() == s1
) {
915 bld
.sop1(aco_opcode::s_abs_i32
, Definition(dst
), bld
.def(s1
, scc
), get_alu_src(ctx
, instr
->src
[0]));
916 } else if (dst
.regClass() == v1
) {
917 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
918 bld
.vop2(aco_opcode::v_max_i32
, Definition(dst
), src
, bld
.vsub32(bld
.def(v1
), Operand(0u), src
));
920 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
921 nir_print_instr(&instr
->instr
, stderr
);
922 fprintf(stderr
, "\n");
927 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
928 if (dst
.regClass() == s1
) {
929 Temp tmp
= bld
.sop2(aco_opcode::s_ashr_i32
, bld
.def(s1
), bld
.def(s1
, scc
), src
, Operand(31u));
930 Temp gtz
= bld
.sopc(aco_opcode::s_cmp_gt_i32
, bld
.def(s1
, scc
), src
, Operand(0u));
931 bld
.sop2(aco_opcode::s_add_i32
, Definition(dst
), bld
.def(s1
, scc
), gtz
, tmp
);
932 } else if (dst
.regClass() == s2
) {
933 Temp neg
= bld
.sop2(aco_opcode::s_ashr_i64
, bld
.def(s2
), bld
.def(s1
, scc
), src
, Operand(63u));
935 if (ctx
->program
->chip_class
>= GFX8
)
936 neqz
= bld
.sopc(aco_opcode::s_cmp_lg_u64
, bld
.def(s1
, scc
), src
, Operand(0u));
938 neqz
= bld
.sop2(aco_opcode::s_or_b64
, bld
.def(s2
), bld
.def(s1
, scc
), src
, Operand(0u)).def(1).getTemp();
939 /* SCC gets zero-extended to 64 bit */
940 bld
.sop2(aco_opcode::s_or_b64
, Definition(dst
), bld
.def(s1
, scc
), neg
, bld
.scc(neqz
));
941 } else if (dst
.regClass() == v1
) {
942 Temp tmp
= bld
.vop2(aco_opcode::v_ashrrev_i32
, bld
.def(v1
), Operand(31u), src
);
943 Temp gtz
= bld
.vopc(aco_opcode::v_cmp_ge_i32
, bld
.hint_vcc(bld
.def(bld
.lm
)), Operand(0u), src
);
944 bld
.vop2(aco_opcode::v_cndmask_b32
, Definition(dst
), Operand(1u), tmp
, gtz
);
945 } else if (dst
.regClass() == v2
) {
946 Temp upper
= emit_extract_vector(ctx
, src
, 1, v1
);
947 Temp neg
= bld
.vop2(aco_opcode::v_ashrrev_i32
, bld
.def(v1
), Operand(31u), upper
);
948 Temp gtz
= bld
.vopc(aco_opcode::v_cmp_ge_i64
, bld
.hint_vcc(bld
.def(bld
.lm
)), Operand(0u), src
);
949 Temp lower
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), Operand(1u), neg
, gtz
);
950 upper
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), Operand(0u), neg
, gtz
);
951 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lower
, upper
);
953 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
954 nir_print_instr(&instr
->instr
, stderr
);
955 fprintf(stderr
, "\n");
960 if (dst
.regClass() == v1
) {
961 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_max_i32
, dst
, true);
962 } else if (dst
.regClass() == s1
) {
963 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_max_i32
, dst
, true);
965 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
966 nir_print_instr(&instr
->instr
, stderr
);
967 fprintf(stderr
, "\n");
972 if (dst
.regClass() == v1
) {
973 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_max_u32
, dst
, true);
974 } else if (dst
.regClass() == s1
) {
975 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_max_u32
, dst
, true);
977 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
978 nir_print_instr(&instr
->instr
, stderr
);
979 fprintf(stderr
, "\n");
984 if (dst
.regClass() == v1
) {
985 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_min_i32
, dst
, true);
986 } else if (dst
.regClass() == s1
) {
987 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_min_i32
, dst
, true);
989 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
990 nir_print_instr(&instr
->instr
, stderr
);
991 fprintf(stderr
, "\n");
996 if (dst
.regClass() == v1
) {
997 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_min_u32
, dst
, true);
998 } else if (dst
.regClass() == s1
) {
999 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_min_u32
, dst
, true);
1001 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1002 nir_print_instr(&instr
->instr
, stderr
);
1003 fprintf(stderr
, "\n");
1008 if (instr
->dest
.dest
.ssa
.bit_size
== 1) {
1009 emit_boolean_logic(ctx
, instr
, Builder::s_or
, dst
);
1010 } else if (dst
.regClass() == v1
) {
1011 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_or_b32
, dst
, true);
1012 } else if (dst
.regClass() == s1
) {
1013 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_or_b32
, dst
, true);
1014 } else if (dst
.regClass() == s2
) {
1015 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_or_b64
, dst
, true);
1017 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1018 nir_print_instr(&instr
->instr
, stderr
);
1019 fprintf(stderr
, "\n");
1024 if (instr
->dest
.dest
.ssa
.bit_size
== 1) {
1025 emit_boolean_logic(ctx
, instr
, Builder::s_and
, dst
);
1026 } else if (dst
.regClass() == v1
) {
1027 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_and_b32
, dst
, true);
1028 } else if (dst
.regClass() == s1
) {
1029 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_and_b32
, dst
, true);
1030 } else if (dst
.regClass() == s2
) {
1031 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_and_b64
, dst
, true);
1033 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1034 nir_print_instr(&instr
->instr
, stderr
);
1035 fprintf(stderr
, "\n");
1040 if (instr
->dest
.dest
.ssa
.bit_size
== 1) {
1041 emit_boolean_logic(ctx
, instr
, Builder::s_xor
, dst
);
1042 } else if (dst
.regClass() == v1
) {
1043 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_xor_b32
, dst
, true);
1044 } else if (dst
.regClass() == s1
) {
1045 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_xor_b32
, dst
, true);
1046 } else if (dst
.regClass() == s2
) {
1047 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_xor_b64
, dst
, true);
1049 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1050 nir_print_instr(&instr
->instr
, stderr
);
1051 fprintf(stderr
, "\n");
1056 if (dst
.regClass() == v1
) {
1057 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_lshrrev_b32
, dst
, false, true);
1058 } else if (dst
.regClass() == v2
&& ctx
->program
->chip_class
>= GFX8
) {
1059 bld
.vop3(aco_opcode::v_lshrrev_b64
, Definition(dst
),
1060 get_alu_src(ctx
, instr
->src
[1]), get_alu_src(ctx
, instr
->src
[0]));
1061 } else if (dst
.regClass() == v2
) {
1062 bld
.vop3(aco_opcode::v_lshr_b64
, Definition(dst
),
1063 get_alu_src(ctx
, instr
->src
[0]), get_alu_src(ctx
, instr
->src
[1]));
1064 } else if (dst
.regClass() == s2
) {
1065 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_lshr_b64
, dst
, true);
1066 } else if (dst
.regClass() == s1
) {
1067 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_lshr_b32
, dst
, true);
1069 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1070 nir_print_instr(&instr
->instr
, stderr
);
1071 fprintf(stderr
, "\n");
1076 if (dst
.regClass() == v1
) {
1077 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_lshlrev_b32
, dst
, false, true);
1078 } else if (dst
.regClass() == v2
&& ctx
->program
->chip_class
>= GFX8
) {
1079 bld
.vop3(aco_opcode::v_lshlrev_b64
, Definition(dst
),
1080 get_alu_src(ctx
, instr
->src
[1]), get_alu_src(ctx
, instr
->src
[0]));
1081 } else if (dst
.regClass() == v2
) {
1082 bld
.vop3(aco_opcode::v_lshl_b64
, Definition(dst
),
1083 get_alu_src(ctx
, instr
->src
[0]), get_alu_src(ctx
, instr
->src
[1]));
1084 } else if (dst
.regClass() == s1
) {
1085 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_lshl_b32
, dst
, true);
1086 } else if (dst
.regClass() == s2
) {
1087 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_lshl_b64
, dst
, true);
1089 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1090 nir_print_instr(&instr
->instr
, stderr
);
1091 fprintf(stderr
, "\n");
1096 if (dst
.regClass() == v1
) {
1097 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_ashrrev_i32
, dst
, false, true);
1098 } else if (dst
.regClass() == v2
&& ctx
->program
->chip_class
>= GFX8
) {
1099 bld
.vop3(aco_opcode::v_ashrrev_i64
, Definition(dst
),
1100 get_alu_src(ctx
, instr
->src
[1]), get_alu_src(ctx
, instr
->src
[0]));
1101 } else if (dst
.regClass() == v2
) {
1102 bld
.vop3(aco_opcode::v_ashr_i64
, Definition(dst
),
1103 get_alu_src(ctx
, instr
->src
[0]), get_alu_src(ctx
, instr
->src
[1]));
1104 } else if (dst
.regClass() == s1
) {
1105 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_ashr_i32
, dst
, true);
1106 } else if (dst
.regClass() == s2
) {
1107 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_ashr_i64
, dst
, true);
1109 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1110 nir_print_instr(&instr
->instr
, stderr
);
1111 fprintf(stderr
, "\n");
1115 case nir_op_find_lsb
: {
1116 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
1117 if (src
.regClass() == s1
) {
1118 bld
.sop1(aco_opcode::s_ff1_i32_b32
, Definition(dst
), src
);
1119 } else if (src
.regClass() == v1
) {
1120 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_ffbl_b32
, dst
);
1121 } else if (src
.regClass() == s2
) {
1122 bld
.sop1(aco_opcode::s_ff1_i32_b64
, Definition(dst
), src
);
1124 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1125 nir_print_instr(&instr
->instr
, stderr
);
1126 fprintf(stderr
, "\n");
1130 case nir_op_ufind_msb
:
1131 case nir_op_ifind_msb
: {
1132 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
1133 if (src
.regClass() == s1
|| src
.regClass() == s2
) {
1134 aco_opcode op
= src
.regClass() == s2
?
1135 (instr
->op
== nir_op_ufind_msb
? aco_opcode::s_flbit_i32_b64
: aco_opcode::s_flbit_i32_i64
) :
1136 (instr
->op
== nir_op_ufind_msb
? aco_opcode::s_flbit_i32_b32
: aco_opcode::s_flbit_i32
);
1137 Temp msb_rev
= bld
.sop1(op
, bld
.def(s1
), src
);
1139 Builder::Result sub
= bld
.sop2(aco_opcode::s_sub_u32
, bld
.def(s1
), bld
.def(s1
, scc
),
1140 Operand(src
.size() * 32u - 1u), msb_rev
);
1141 Temp msb
= sub
.def(0).getTemp();
1142 Temp carry
= sub
.def(1).getTemp();
1144 bld
.sop2(aco_opcode::s_cselect_b32
, Definition(dst
), Operand((uint32_t)-1), msb
, bld
.scc(carry
));
1145 } else if (src
.regClass() == v1
) {
1146 aco_opcode op
= instr
->op
== nir_op_ufind_msb
? aco_opcode::v_ffbh_u32
: aco_opcode::v_ffbh_i32
;
1147 Temp msb_rev
= bld
.tmp(v1
);
1148 emit_vop1_instruction(ctx
, instr
, op
, msb_rev
);
1149 Temp msb
= bld
.tmp(v1
);
1150 Temp carry
= bld
.vsub32(Definition(msb
), Operand(31u), Operand(msb_rev
), true).def(1).getTemp();
1151 bld
.vop2_e64(aco_opcode::v_cndmask_b32
, Definition(dst
), msb
, Operand((uint32_t)-1), carry
);
1153 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1154 nir_print_instr(&instr
->instr
, stderr
);
1155 fprintf(stderr
, "\n");
1159 case nir_op_bitfield_reverse
: {
1160 if (dst
.regClass() == s1
) {
1161 bld
.sop1(aco_opcode::s_brev_b32
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]));
1162 } else if (dst
.regClass() == v1
) {
1163 bld
.vop1(aco_opcode::v_bfrev_b32
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]));
1165 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1166 nir_print_instr(&instr
->instr
, stderr
);
1167 fprintf(stderr
, "\n");
1172 if (dst
.regClass() == s1
) {
1173 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_add_u32
, dst
, true);
1177 Temp src0
= get_alu_src(ctx
, instr
->src
[0]);
1178 Temp src1
= get_alu_src(ctx
, instr
->src
[1]);
1179 if (dst
.regClass() == v1
) {
1180 bld
.vadd32(Definition(dst
), Operand(src0
), Operand(src1
));
1184 assert(src0
.size() == 2 && src1
.size() == 2);
1185 Temp src00
= bld
.tmp(src0
.type(), 1);
1186 Temp src01
= bld
.tmp(dst
.type(), 1);
1187 bld
.pseudo(aco_opcode::p_split_vector
, Definition(src00
), Definition(src01
), src0
);
1188 Temp src10
= bld
.tmp(src1
.type(), 1);
1189 Temp src11
= bld
.tmp(dst
.type(), 1);
1190 bld
.pseudo(aco_opcode::p_split_vector
, Definition(src10
), Definition(src11
), src1
);
1192 if (dst
.regClass() == s2
) {
1193 Temp carry
= bld
.tmp(s1
);
1194 Temp dst0
= bld
.sop2(aco_opcode::s_add_u32
, bld
.def(s1
), bld
.scc(Definition(carry
)), src00
, src10
);
1195 Temp dst1
= bld
.sop2(aco_opcode::s_addc_u32
, bld
.def(s1
), bld
.def(s1
, scc
), src01
, src11
, bld
.scc(carry
));
1196 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), dst0
, dst1
);
1197 } else if (dst
.regClass() == v2
) {
1198 Temp dst0
= bld
.tmp(v1
);
1199 Temp carry
= bld
.vadd32(Definition(dst0
), src00
, src10
, true).def(1).getTemp();
1200 Temp dst1
= bld
.vadd32(bld
.def(v1
), src01
, src11
, false, carry
);
1201 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), dst0
, dst1
);
1203 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1204 nir_print_instr(&instr
->instr
, stderr
);
1205 fprintf(stderr
, "\n");
1209 case nir_op_uadd_sat
: {
1210 Temp src0
= get_alu_src(ctx
, instr
->src
[0]);
1211 Temp src1
= get_alu_src(ctx
, instr
->src
[1]);
1212 if (dst
.regClass() == s1
) {
1213 Temp tmp
= bld
.tmp(s1
), carry
= bld
.tmp(s1
);
1214 bld
.sop2(aco_opcode::s_add_u32
, Definition(tmp
), bld
.scc(Definition(carry
)),
1216 bld
.sop2(aco_opcode::s_cselect_b32
, Definition(dst
), Operand((uint32_t) -1), tmp
, bld
.scc(carry
));
1217 } else if (dst
.regClass() == v1
) {
1218 if (ctx
->options
->chip_class
>= GFX9
) {
1219 aco_ptr
<VOP3A_instruction
> add
{create_instruction
<VOP3A_instruction
>(aco_opcode::v_add_u32
, asVOP3(Format::VOP2
), 2, 1)};
1220 add
->operands
[0] = Operand(src0
);
1221 add
->operands
[1] = Operand(src1
);
1222 add
->definitions
[0] = Definition(dst
);
1224 ctx
->block
->instructions
.emplace_back(std::move(add
));
1226 if (src1
.regClass() != v1
)
1227 std::swap(src0
, src1
);
1228 assert(src1
.regClass() == v1
);
1229 Temp tmp
= bld
.tmp(v1
);
1230 Temp carry
= bld
.vadd32(Definition(tmp
), src0
, src1
, true).def(1).getTemp();
1231 bld
.vop2_e64(aco_opcode::v_cndmask_b32
, Definition(dst
), tmp
, Operand((uint32_t) -1), carry
);
1234 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1235 nir_print_instr(&instr
->instr
, stderr
);
1236 fprintf(stderr
, "\n");
1240 case nir_op_uadd_carry
: {
1241 Temp src0
= get_alu_src(ctx
, instr
->src
[0]);
1242 Temp src1
= get_alu_src(ctx
, instr
->src
[1]);
1243 if (dst
.regClass() == s1
) {
1244 bld
.sop2(aco_opcode::s_add_u32
, bld
.def(s1
), bld
.scc(Definition(dst
)), src0
, src1
);
1247 if (dst
.regClass() == v1
) {
1248 Temp carry
= bld
.vadd32(bld
.def(v1
), src0
, src1
, true).def(1).getTemp();
1249 bld
.vop2_e64(aco_opcode::v_cndmask_b32
, Definition(dst
), Operand(0u), Operand(1u), carry
);
1253 Temp src00
= bld
.tmp(src0
.type(), 1);
1254 Temp src01
= bld
.tmp(dst
.type(), 1);
1255 bld
.pseudo(aco_opcode::p_split_vector
, Definition(src00
), Definition(src01
), src0
);
1256 Temp src10
= bld
.tmp(src1
.type(), 1);
1257 Temp src11
= bld
.tmp(dst
.type(), 1);
1258 bld
.pseudo(aco_opcode::p_split_vector
, Definition(src10
), Definition(src11
), src1
);
1259 if (dst
.regClass() == s2
) {
1260 Temp carry
= bld
.tmp(s1
);
1261 bld
.sop2(aco_opcode::s_add_u32
, bld
.def(s1
), bld
.scc(Definition(carry
)), src00
, src10
);
1262 carry
= bld
.sop2(aco_opcode::s_addc_u32
, bld
.def(s1
), bld
.scc(bld
.def(s1
)), src01
, src11
, bld
.scc(carry
)).def(1).getTemp();
1263 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), carry
, Operand(0u));
1264 } else if (dst
.regClass() == v2
) {
1265 Temp carry
= bld
.vadd32(bld
.def(v1
), src00
, src10
, true).def(1).getTemp();
1266 carry
= bld
.vadd32(bld
.def(v1
), src01
, src11
, true, carry
).def(1).getTemp();
1267 carry
= bld
.vop2_e64(aco_opcode::v_cndmask_b32
, bld
.def(v1
), Operand(0u), Operand(1u), carry
);
1268 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), carry
, Operand(0u));
1270 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1271 nir_print_instr(&instr
->instr
, stderr
);
1272 fprintf(stderr
, "\n");
1277 if (dst
.regClass() == s1
) {
1278 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_sub_i32
, dst
, true);
1282 Temp src0
= get_alu_src(ctx
, instr
->src
[0]);
1283 Temp src1
= get_alu_src(ctx
, instr
->src
[1]);
1284 if (dst
.regClass() == v1
) {
1285 bld
.vsub32(Definition(dst
), src0
, src1
);
1289 Temp src00
= bld
.tmp(src0
.type(), 1);
1290 Temp src01
= bld
.tmp(dst
.type(), 1);
1291 bld
.pseudo(aco_opcode::p_split_vector
, Definition(src00
), Definition(src01
), src0
);
1292 Temp src10
= bld
.tmp(src1
.type(), 1);
1293 Temp src11
= bld
.tmp(dst
.type(), 1);
1294 bld
.pseudo(aco_opcode::p_split_vector
, Definition(src10
), Definition(src11
), src1
);
1295 if (dst
.regClass() == s2
) {
1296 Temp carry
= bld
.tmp(s1
);
1297 Temp dst0
= bld
.sop2(aco_opcode::s_sub_u32
, bld
.def(s1
), bld
.scc(Definition(carry
)), src00
, src10
);
1298 Temp dst1
= bld
.sop2(aco_opcode::s_subb_u32
, bld
.def(s1
), bld
.def(s1
, scc
), src01
, src11
, carry
);
1299 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), dst0
, dst1
);
1300 } else if (dst
.regClass() == v2
) {
1301 Temp lower
= bld
.tmp(v1
);
1302 Temp borrow
= bld
.vsub32(Definition(lower
), src00
, src10
, true).def(1).getTemp();
1303 Temp upper
= bld
.vsub32(bld
.def(v1
), src01
, src11
, false, borrow
);
1304 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lower
, upper
);
1306 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1307 nir_print_instr(&instr
->instr
, stderr
);
1308 fprintf(stderr
, "\n");
1312 case nir_op_usub_borrow
: {
1313 Temp src0
= get_alu_src(ctx
, instr
->src
[0]);
1314 Temp src1
= get_alu_src(ctx
, instr
->src
[1]);
1315 if (dst
.regClass() == s1
) {
1316 bld
.sop2(aco_opcode::s_sub_u32
, bld
.def(s1
), bld
.scc(Definition(dst
)), src0
, src1
);
1318 } else if (dst
.regClass() == v1
) {
1319 Temp borrow
= bld
.vsub32(bld
.def(v1
), src0
, src1
, true).def(1).getTemp();
1320 bld
.vop2_e64(aco_opcode::v_cndmask_b32
, Definition(dst
), Operand(0u), Operand(1u), borrow
);
1324 Temp src00
= bld
.tmp(src0
.type(), 1);
1325 Temp src01
= bld
.tmp(dst
.type(), 1);
1326 bld
.pseudo(aco_opcode::p_split_vector
, Definition(src00
), Definition(src01
), src0
);
1327 Temp src10
= bld
.tmp(src1
.type(), 1);
1328 Temp src11
= bld
.tmp(dst
.type(), 1);
1329 bld
.pseudo(aco_opcode::p_split_vector
, Definition(src10
), Definition(src11
), src1
);
1330 if (dst
.regClass() == s2
) {
1331 Temp borrow
= bld
.tmp(s1
);
1332 bld
.sop2(aco_opcode::s_sub_u32
, bld
.def(s1
), bld
.scc(Definition(borrow
)), src00
, src10
);
1333 borrow
= bld
.sop2(aco_opcode::s_subb_u32
, bld
.def(s1
), bld
.scc(bld
.def(s1
)), src01
, src11
, bld
.scc(borrow
)).def(1).getTemp();
1334 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), borrow
, Operand(0u));
1335 } else if (dst
.regClass() == v2
) {
1336 Temp borrow
= bld
.vsub32(bld
.def(v1
), src00
, src10
, true).def(1).getTemp();
1337 borrow
= bld
.vsub32(bld
.def(v1
), src01
, src11
, true, Operand(borrow
)).def(1).getTemp();
1338 borrow
= bld
.vop2_e64(aco_opcode::v_cndmask_b32
, bld
.def(v1
), Operand(0u), Operand(1u), borrow
);
1339 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), borrow
, Operand(0u));
1341 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1342 nir_print_instr(&instr
->instr
, stderr
);
1343 fprintf(stderr
, "\n");
1348 if (dst
.regClass() == v1
) {
1349 bld
.vop3(aco_opcode::v_mul_lo_u32
, Definition(dst
),
1350 get_alu_src(ctx
, instr
->src
[0]), get_alu_src(ctx
, instr
->src
[1]));
1351 } else if (dst
.regClass() == s1
) {
1352 emit_sop2_instruction(ctx
, instr
, aco_opcode::s_mul_i32
, dst
, false);
1354 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1355 nir_print_instr(&instr
->instr
, stderr
);
1356 fprintf(stderr
, "\n");
1360 case nir_op_umul_high
: {
1361 if (dst
.regClass() == v1
) {
1362 bld
.vop3(aco_opcode::v_mul_hi_u32
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]), get_alu_src(ctx
, instr
->src
[1]));
1363 } else if (dst
.regClass() == s1
&& ctx
->options
->chip_class
>= GFX9
) {
1364 bld
.sop2(aco_opcode::s_mul_hi_u32
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]), get_alu_src(ctx
, instr
->src
[1]));
1365 } else if (dst
.regClass() == s1
) {
1366 Temp tmp
= bld
.vop3(aco_opcode::v_mul_hi_u32
, bld
.def(v1
), get_alu_src(ctx
, instr
->src
[0]),
1367 as_vgpr(ctx
, get_alu_src(ctx
, instr
->src
[1])));
1368 bld
.pseudo(aco_opcode::p_as_uniform
, Definition(dst
), tmp
);
1370 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1371 nir_print_instr(&instr
->instr
, stderr
);
1372 fprintf(stderr
, "\n");
1376 case nir_op_imul_high
: {
1377 if (dst
.regClass() == v1
) {
1378 bld
.vop3(aco_opcode::v_mul_hi_i32
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]), get_alu_src(ctx
, instr
->src
[1]));
1379 } else if (dst
.regClass() == s1
&& ctx
->options
->chip_class
>= GFX9
) {
1380 bld
.sop2(aco_opcode::s_mul_hi_i32
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]), get_alu_src(ctx
, instr
->src
[1]));
1381 } else if (dst
.regClass() == s1
) {
1382 Temp tmp
= bld
.vop3(aco_opcode::v_mul_hi_i32
, bld
.def(v1
), get_alu_src(ctx
, instr
->src
[0]),
1383 as_vgpr(ctx
, get_alu_src(ctx
, instr
->src
[1])));
1384 bld
.pseudo(aco_opcode::p_as_uniform
, Definition(dst
), tmp
);
1386 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1387 nir_print_instr(&instr
->instr
, stderr
);
1388 fprintf(stderr
, "\n");
1393 if (dst
.size() == 1) {
1394 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_mul_f32
, dst
, true);
1395 } else if (dst
.size() == 2) {
1396 bld
.vop3(aco_opcode::v_mul_f64
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]),
1397 as_vgpr(ctx
, get_alu_src(ctx
, instr
->src
[1])));
1399 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1400 nir_print_instr(&instr
->instr
, stderr
);
1401 fprintf(stderr
, "\n");
1406 if (dst
.size() == 1) {
1407 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_add_f32
, dst
, true);
1408 } else if (dst
.size() == 2) {
1409 bld
.vop3(aco_opcode::v_add_f64
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]),
1410 as_vgpr(ctx
, get_alu_src(ctx
, instr
->src
[1])));
1412 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1413 nir_print_instr(&instr
->instr
, stderr
);
1414 fprintf(stderr
, "\n");
1419 Temp src0
= get_alu_src(ctx
, instr
->src
[0]);
1420 Temp src1
= get_alu_src(ctx
, instr
->src
[1]);
1421 if (dst
.size() == 1) {
1422 if (src1
.type() == RegType::vgpr
|| src0
.type() != RegType::vgpr
)
1423 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_sub_f32
, dst
, false);
1425 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_subrev_f32
, dst
, true);
1426 } else if (dst
.size() == 2) {
1427 Instruction
* add
= bld
.vop3(aco_opcode::v_add_f64
, Definition(dst
),
1428 get_alu_src(ctx
, instr
->src
[0]),
1429 as_vgpr(ctx
, get_alu_src(ctx
, instr
->src
[1])));
1430 VOP3A_instruction
* sub
= static_cast<VOP3A_instruction
*>(add
);
1433 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1434 nir_print_instr(&instr
->instr
, stderr
);
1435 fprintf(stderr
, "\n");
1440 if (dst
.size() == 1) {
1441 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_max_f32
, dst
, true, false, ctx
->block
->fp_mode
.must_flush_denorms32
);
1442 } else if (dst
.size() == 2) {
1443 if (ctx
->block
->fp_mode
.must_flush_denorms16_64
&& ctx
->program
->chip_class
< GFX9
) {
1444 Temp tmp
= bld
.vop3(aco_opcode::v_max_f64
, bld
.def(v2
),
1445 get_alu_src(ctx
, instr
->src
[0]),
1446 as_vgpr(ctx
, get_alu_src(ctx
, instr
->src
[1])));
1447 bld
.vop3(aco_opcode::v_mul_f64
, Definition(dst
), Operand(0x3FF0000000000000lu
), tmp
);
1449 bld
.vop3(aco_opcode::v_max_f64
, Definition(dst
),
1450 get_alu_src(ctx
, instr
->src
[0]),
1451 as_vgpr(ctx
, get_alu_src(ctx
, instr
->src
[1])));
1454 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1455 nir_print_instr(&instr
->instr
, stderr
);
1456 fprintf(stderr
, "\n");
1461 if (dst
.size() == 1) {
1462 emit_vop2_instruction(ctx
, instr
, aco_opcode::v_min_f32
, dst
, true, false, ctx
->block
->fp_mode
.must_flush_denorms32
);
1463 } else if (dst
.size() == 2) {
1464 if (ctx
->block
->fp_mode
.must_flush_denorms16_64
&& ctx
->program
->chip_class
< GFX9
) {
1465 Temp tmp
= bld
.vop3(aco_opcode::v_min_f64
, bld
.def(v2
),
1466 get_alu_src(ctx
, instr
->src
[0]),
1467 as_vgpr(ctx
, get_alu_src(ctx
, instr
->src
[1])));
1468 bld
.vop3(aco_opcode::v_mul_f64
, Definition(dst
), Operand(0x3FF0000000000000lu
), tmp
);
1470 bld
.vop3(aco_opcode::v_min_f64
, Definition(dst
),
1471 get_alu_src(ctx
, instr
->src
[0]),
1472 as_vgpr(ctx
, get_alu_src(ctx
, instr
->src
[1])));
1475 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1476 nir_print_instr(&instr
->instr
, stderr
);
1477 fprintf(stderr
, "\n");
1481 case nir_op_fmax3
: {
1482 if (dst
.size() == 1) {
1483 emit_vop3a_instruction(ctx
, instr
, aco_opcode::v_max3_f32
, dst
, ctx
->block
->fp_mode
.must_flush_denorms32
);
1485 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1486 nir_print_instr(&instr
->instr
, stderr
);
1487 fprintf(stderr
, "\n");
1491 case nir_op_fmin3
: {
1492 if (dst
.size() == 1) {
1493 emit_vop3a_instruction(ctx
, instr
, aco_opcode::v_min3_f32
, dst
, ctx
->block
->fp_mode
.must_flush_denorms32
);
1495 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1496 nir_print_instr(&instr
->instr
, stderr
);
1497 fprintf(stderr
, "\n");
1501 case nir_op_fmed3
: {
1502 if (dst
.size() == 1) {
1503 emit_vop3a_instruction(ctx
, instr
, aco_opcode::v_med3_f32
, dst
, ctx
->block
->fp_mode
.must_flush_denorms32
);
1505 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1506 nir_print_instr(&instr
->instr
, stderr
);
1507 fprintf(stderr
, "\n");
1511 case nir_op_umax3
: {
1512 if (dst
.size() == 1) {
1513 emit_vop3a_instruction(ctx
, instr
, aco_opcode::v_max3_u32
, dst
);
1515 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1516 nir_print_instr(&instr
->instr
, stderr
);
1517 fprintf(stderr
, "\n");
1521 case nir_op_umin3
: {
1522 if (dst
.size() == 1) {
1523 emit_vop3a_instruction(ctx
, instr
, aco_opcode::v_min3_u32
, dst
);
1525 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1526 nir_print_instr(&instr
->instr
, stderr
);
1527 fprintf(stderr
, "\n");
1531 case nir_op_umed3
: {
1532 if (dst
.size() == 1) {
1533 emit_vop3a_instruction(ctx
, instr
, aco_opcode::v_med3_u32
, dst
);
1535 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1536 nir_print_instr(&instr
->instr
, stderr
);
1537 fprintf(stderr
, "\n");
1541 case nir_op_imax3
: {
1542 if (dst
.size() == 1) {
1543 emit_vop3a_instruction(ctx
, instr
, aco_opcode::v_max3_i32
, dst
);
1545 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1546 nir_print_instr(&instr
->instr
, stderr
);
1547 fprintf(stderr
, "\n");
1551 case nir_op_imin3
: {
1552 if (dst
.size() == 1) {
1553 emit_vop3a_instruction(ctx
, instr
, aco_opcode::v_min3_i32
, dst
);
1555 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1556 nir_print_instr(&instr
->instr
, stderr
);
1557 fprintf(stderr
, "\n");
1561 case nir_op_imed3
: {
1562 if (dst
.size() == 1) {
1563 emit_vop3a_instruction(ctx
, instr
, aco_opcode::v_med3_i32
, dst
);
1565 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1566 nir_print_instr(&instr
->instr
, stderr
);
1567 fprintf(stderr
, "\n");
1571 case nir_op_cube_face_coord
: {
1572 Temp in
= get_alu_src(ctx
, instr
->src
[0], 3);
1573 Temp src
[3] = { emit_extract_vector(ctx
, in
, 0, v1
),
1574 emit_extract_vector(ctx
, in
, 1, v1
),
1575 emit_extract_vector(ctx
, in
, 2, v1
) };
1576 Temp ma
= bld
.vop3(aco_opcode::v_cubema_f32
, bld
.def(v1
), src
[0], src
[1], src
[2]);
1577 ma
= bld
.vop1(aco_opcode::v_rcp_f32
, bld
.def(v1
), ma
);
1578 Temp sc
= bld
.vop3(aco_opcode::v_cubesc_f32
, bld
.def(v1
), src
[0], src
[1], src
[2]);
1579 Temp tc
= bld
.vop3(aco_opcode::v_cubetc_f32
, bld
.def(v1
), src
[0], src
[1], src
[2]);
1580 sc
= bld
.vop2(aco_opcode::v_madak_f32
, bld
.def(v1
), sc
, ma
, Operand(0x3f000000u
/*0.5*/));
1581 tc
= bld
.vop2(aco_opcode::v_madak_f32
, bld
.def(v1
), tc
, ma
, Operand(0x3f000000u
/*0.5*/));
1582 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), sc
, tc
);
1585 case nir_op_cube_face_index
: {
1586 Temp in
= get_alu_src(ctx
, instr
->src
[0], 3);
1587 Temp src
[3] = { emit_extract_vector(ctx
, in
, 0, v1
),
1588 emit_extract_vector(ctx
, in
, 1, v1
),
1589 emit_extract_vector(ctx
, in
, 2, v1
) };
1590 bld
.vop3(aco_opcode::v_cubeid_f32
, Definition(dst
), src
[0], src
[1], src
[2]);
1593 case nir_op_bcsel
: {
1594 emit_bcsel(ctx
, instr
, dst
);
1598 if (dst
.size() == 1) {
1599 emit_rsq(ctx
, bld
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]));
1600 } else if (dst
.size() == 2) {
1601 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_rsq_f64
, dst
);
1603 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1604 nir_print_instr(&instr
->instr
, stderr
);
1605 fprintf(stderr
, "\n");
1610 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
1611 if (dst
.size() == 1) {
1612 if (ctx
->block
->fp_mode
.must_flush_denorms32
)
1613 src
= bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), Operand(0x3f800000u
), as_vgpr(ctx
, src
));
1614 bld
.vop2(aco_opcode::v_xor_b32
, Definition(dst
), Operand(0x80000000u
), as_vgpr(ctx
, src
));
1615 } else if (dst
.size() == 2) {
1616 if (ctx
->block
->fp_mode
.must_flush_denorms16_64
)
1617 src
= bld
.vop3(aco_opcode::v_mul_f64
, bld
.def(v2
), Operand(0x3FF0000000000000lu
), as_vgpr(ctx
, src
));
1618 Temp upper
= bld
.tmp(v1
), lower
= bld
.tmp(v1
);
1619 bld
.pseudo(aco_opcode::p_split_vector
, Definition(lower
), Definition(upper
), src
);
1620 upper
= bld
.vop2(aco_opcode::v_xor_b32
, bld
.def(v1
), Operand(0x80000000u
), upper
);
1621 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lower
, upper
);
1623 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1624 nir_print_instr(&instr
->instr
, stderr
);
1625 fprintf(stderr
, "\n");
1630 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
1631 if (dst
.size() == 1) {
1632 if (ctx
->block
->fp_mode
.must_flush_denorms32
)
1633 src
= bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), Operand(0x3f800000u
), as_vgpr(ctx
, src
));
1634 bld
.vop2(aco_opcode::v_and_b32
, Definition(dst
), Operand(0x7FFFFFFFu
), as_vgpr(ctx
, src
));
1635 } else if (dst
.size() == 2) {
1636 if (ctx
->block
->fp_mode
.must_flush_denorms16_64
)
1637 src
= bld
.vop3(aco_opcode::v_mul_f64
, bld
.def(v2
), Operand(0x3FF0000000000000lu
), as_vgpr(ctx
, src
));
1638 Temp upper
= bld
.tmp(v1
), lower
= bld
.tmp(v1
);
1639 bld
.pseudo(aco_opcode::p_split_vector
, Definition(lower
), Definition(upper
), src
);
1640 upper
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(0x7FFFFFFFu
), upper
);
1641 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lower
, upper
);
1643 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1644 nir_print_instr(&instr
->instr
, stderr
);
1645 fprintf(stderr
, "\n");
1650 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
1651 if (dst
.size() == 1) {
1652 bld
.vop3(aco_opcode::v_med3_f32
, Definition(dst
), Operand(0u), Operand(0x3f800000u
), src
);
1653 /* apparently, it is not necessary to flush denorms if this instruction is used with these operands */
1654 // TODO: confirm that this holds under any circumstances
1655 } else if (dst
.size() == 2) {
1656 Instruction
* add
= bld
.vop3(aco_opcode::v_add_f64
, Definition(dst
), src
, Operand(0u));
1657 VOP3A_instruction
* vop3
= static_cast<VOP3A_instruction
*>(add
);
1660 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1661 nir_print_instr(&instr
->instr
, stderr
);
1662 fprintf(stderr
, "\n");
1666 case nir_op_flog2
: {
1667 if (dst
.size() == 1) {
1668 emit_log2(ctx
, bld
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]));
1670 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1671 nir_print_instr(&instr
->instr
, stderr
);
1672 fprintf(stderr
, "\n");
1677 if (dst
.size() == 1) {
1678 emit_rcp(ctx
, bld
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]));
1679 } else if (dst
.size() == 2) {
1680 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_rcp_f64
, dst
);
1682 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1683 nir_print_instr(&instr
->instr
, stderr
);
1684 fprintf(stderr
, "\n");
1688 case nir_op_fexp2
: {
1689 if (dst
.size() == 1) {
1690 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_exp_f32
, dst
);
1692 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1693 nir_print_instr(&instr
->instr
, stderr
);
1694 fprintf(stderr
, "\n");
1698 case nir_op_fsqrt
: {
1699 if (dst
.size() == 1) {
1700 emit_sqrt(ctx
, bld
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]));
1701 } else if (dst
.size() == 2) {
1702 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_sqrt_f64
, dst
);
1704 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1705 nir_print_instr(&instr
->instr
, stderr
);
1706 fprintf(stderr
, "\n");
1710 case nir_op_ffract
: {
1711 if (dst
.size() == 1) {
1712 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_fract_f32
, dst
);
1713 } else if (dst
.size() == 2) {
1714 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_fract_f64
, dst
);
1716 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1717 nir_print_instr(&instr
->instr
, stderr
);
1718 fprintf(stderr
, "\n");
1722 case nir_op_ffloor
: {
1723 if (dst
.size() == 1) {
1724 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_floor_f32
, dst
);
1725 } else if (dst
.size() == 2) {
1726 emit_floor_f64(ctx
, bld
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]));
1728 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1729 nir_print_instr(&instr
->instr
, stderr
);
1730 fprintf(stderr
, "\n");
1734 case nir_op_fceil
: {
1735 if (dst
.size() == 1) {
1736 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_ceil_f32
, dst
);
1737 } else if (dst
.size() == 2) {
1738 if (ctx
->options
->chip_class
>= GFX7
) {
1739 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_ceil_f64
, dst
);
1741 /* GFX6 doesn't support V_CEIL_F64, lower it. */
1742 Temp src0
= get_alu_src(ctx
, instr
->src
[0]);
1744 /* trunc = trunc(src0)
1745 * if (src0 > 0.0 && src0 != trunc)
1748 Temp trunc
= emit_trunc_f64(ctx
, bld
, bld
.def(v2
), src0
);
1749 Temp tmp0
= bld
.vopc_e64(aco_opcode::v_cmp_gt_f64
, bld
.def(bld
.lm
), src0
, Operand(0u));
1750 Temp tmp1
= bld
.vopc(aco_opcode::v_cmp_lg_f64
, bld
.hint_vcc(bld
.def(bld
.lm
)), src0
, trunc
);
1751 Temp cond
= bld
.sop2(aco_opcode::s_and_b64
, bld
.hint_vcc(bld
.def(s2
)), bld
.def(s1
, scc
), tmp0
, tmp1
);
1752 Temp add
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), bld
.copy(bld
.def(v1
), Operand(0u)), bld
.copy(bld
.def(v1
), Operand(0x3ff00000u
)), cond
);
1753 add
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), bld
.copy(bld
.def(v1
), Operand(0u)), add
);
1754 bld
.vop3(aco_opcode::v_add_f64
, Definition(dst
), trunc
, add
);
1757 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1758 nir_print_instr(&instr
->instr
, stderr
);
1759 fprintf(stderr
, "\n");
1763 case nir_op_ftrunc
: {
1764 if (dst
.size() == 1) {
1765 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_trunc_f32
, dst
);
1766 } else if (dst
.size() == 2) {
1767 emit_trunc_f64(ctx
, bld
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]));
1769 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1770 nir_print_instr(&instr
->instr
, stderr
);
1771 fprintf(stderr
, "\n");
1775 case nir_op_fround_even
: {
1776 if (dst
.size() == 1) {
1777 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_rndne_f32
, dst
);
1778 } else if (dst
.size() == 2) {
1779 if (ctx
->options
->chip_class
>= GFX7
) {
1780 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_rndne_f64
, dst
);
1782 /* GFX6 doesn't support V_RNDNE_F64, lower it. */
1783 Temp src0
= get_alu_src(ctx
, instr
->src
[0]);
1785 Temp src0_lo
= bld
.tmp(v1
), src0_hi
= bld
.tmp(v1
);
1786 bld
.pseudo(aco_opcode::p_split_vector
, Definition(src0_lo
), Definition(src0_hi
), src0
);
1788 Temp bitmask
= bld
.sop1(aco_opcode::s_brev_b32
, bld
.def(s1
), bld
.copy(bld
.def(s1
), Operand(-2u)));
1789 Temp bfi
= bld
.vop3(aco_opcode::v_bfi_b32
, bld
.def(v1
), bitmask
, bld
.copy(bld
.def(v1
), Operand(0x43300000u
)), as_vgpr(ctx
, src0_hi
));
1790 Temp tmp
= bld
.vop3(aco_opcode::v_add_f64
, bld
.def(v2
), src0
, bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), Operand(0u), bfi
));
1791 Instruction
*sub
= bld
.vop3(aco_opcode::v_add_f64
, bld
.def(v2
), tmp
, bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), Operand(0u), bfi
));
1792 static_cast<VOP3A_instruction
*>(sub
)->neg
[1] = true;
1793 tmp
= sub
->definitions
[0].getTemp();
1795 Temp v
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), Operand(-1u), Operand(0x432fffffu
));
1796 Instruction
* vop3
= bld
.vopc_e64(aco_opcode::v_cmp_gt_f64
, bld
.hint_vcc(bld
.def(bld
.lm
)), src0
, v
);
1797 static_cast<VOP3A_instruction
*>(vop3
)->abs
[0] = true;
1798 Temp cond
= vop3
->definitions
[0].getTemp();
1800 Temp tmp_lo
= bld
.tmp(v1
), tmp_hi
= bld
.tmp(v1
);
1801 bld
.pseudo(aco_opcode::p_split_vector
, Definition(tmp_lo
), Definition(tmp_hi
), tmp
);
1802 Temp dst0
= bld
.vop2_e64(aco_opcode::v_cndmask_b32
, bld
.def(v1
), tmp_lo
, as_vgpr(ctx
, src0_lo
), cond
);
1803 Temp dst1
= bld
.vop2_e64(aco_opcode::v_cndmask_b32
, bld
.def(v1
), tmp_hi
, as_vgpr(ctx
, src0_hi
), cond
);
1805 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), dst0
, dst1
);
1808 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1809 nir_print_instr(&instr
->instr
, stderr
);
1810 fprintf(stderr
, "\n");
1816 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
1817 aco_ptr
<Instruction
> norm
;
1818 if (dst
.size() == 1) {
1819 Temp half_pi
= bld
.copy(bld
.def(s1
), Operand(0x3e22f983u
));
1820 Temp tmp
= bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), half_pi
, as_vgpr(ctx
, src
));
1822 /* before GFX9, v_sin_f32 and v_cos_f32 had a valid input domain of [-256, +256] */
1823 if (ctx
->options
->chip_class
< GFX9
)
1824 tmp
= bld
.vop1(aco_opcode::v_fract_f32
, bld
.def(v1
), tmp
);
1826 aco_opcode opcode
= instr
->op
== nir_op_fsin
? aco_opcode::v_sin_f32
: aco_opcode::v_cos_f32
;
1827 bld
.vop1(opcode
, Definition(dst
), tmp
);
1829 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1830 nir_print_instr(&instr
->instr
, stderr
);
1831 fprintf(stderr
, "\n");
1835 case nir_op_ldexp
: {
1836 if (dst
.size() == 1) {
1837 bld
.vop3(aco_opcode::v_ldexp_f32
, Definition(dst
),
1838 as_vgpr(ctx
, get_alu_src(ctx
, instr
->src
[0])),
1839 get_alu_src(ctx
, instr
->src
[1]));
1840 } else if (dst
.size() == 2) {
1841 bld
.vop3(aco_opcode::v_ldexp_f64
, Definition(dst
),
1842 as_vgpr(ctx
, get_alu_src(ctx
, instr
->src
[0])),
1843 get_alu_src(ctx
, instr
->src
[1]));
1845 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1846 nir_print_instr(&instr
->instr
, stderr
);
1847 fprintf(stderr
, "\n");
1851 case nir_op_frexp_sig
: {
1852 if (dst
.size() == 1) {
1853 bld
.vop1(aco_opcode::v_frexp_mant_f32
, Definition(dst
),
1854 get_alu_src(ctx
, instr
->src
[0]));
1855 } else if (dst
.size() == 2) {
1856 bld
.vop1(aco_opcode::v_frexp_mant_f64
, Definition(dst
),
1857 get_alu_src(ctx
, instr
->src
[0]));
1859 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1860 nir_print_instr(&instr
->instr
, stderr
);
1861 fprintf(stderr
, "\n");
1865 case nir_op_frexp_exp
: {
1866 if (instr
->src
[0].src
.ssa
->bit_size
== 32) {
1867 bld
.vop1(aco_opcode::v_frexp_exp_i32_f32
, Definition(dst
),
1868 get_alu_src(ctx
, instr
->src
[0]));
1869 } else if (instr
->src
[0].src
.ssa
->bit_size
== 64) {
1870 bld
.vop1(aco_opcode::v_frexp_exp_i32_f64
, Definition(dst
),
1871 get_alu_src(ctx
, instr
->src
[0]));
1873 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1874 nir_print_instr(&instr
->instr
, stderr
);
1875 fprintf(stderr
, "\n");
1879 case nir_op_fsign
: {
1880 Temp src
= as_vgpr(ctx
, get_alu_src(ctx
, instr
->src
[0]));
1881 if (dst
.size() == 1) {
1882 Temp cond
= bld
.vopc(aco_opcode::v_cmp_nlt_f32
, bld
.hint_vcc(bld
.def(bld
.lm
)), Operand(0u), src
);
1883 src
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), Operand(0x3f800000u
), src
, cond
);
1884 cond
= bld
.vopc(aco_opcode::v_cmp_le_f32
, bld
.hint_vcc(bld
.def(bld
.lm
)), Operand(0u), src
);
1885 bld
.vop2(aco_opcode::v_cndmask_b32
, Definition(dst
), Operand(0xbf800000u
), src
, cond
);
1886 } else if (dst
.size() == 2) {
1887 Temp cond
= bld
.vopc(aco_opcode::v_cmp_nlt_f64
, bld
.hint_vcc(bld
.def(bld
.lm
)), Operand(0u), src
);
1888 Temp tmp
= bld
.vop1(aco_opcode::v_mov_b32
, bld
.def(v1
), Operand(0x3FF00000u
));
1889 Temp upper
= bld
.vop2_e64(aco_opcode::v_cndmask_b32
, bld
.def(v1
), tmp
, emit_extract_vector(ctx
, src
, 1, v1
), cond
);
1891 cond
= bld
.vopc(aco_opcode::v_cmp_le_f64
, bld
.hint_vcc(bld
.def(bld
.lm
)), Operand(0u), src
);
1892 tmp
= bld
.vop1(aco_opcode::v_mov_b32
, bld
.def(v1
), Operand(0xBFF00000u
));
1893 upper
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), tmp
, upper
, cond
);
1895 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), Operand(0u), upper
);
1897 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1898 nir_print_instr(&instr
->instr
, stderr
);
1899 fprintf(stderr
, "\n");
1903 case nir_op_f2f32
: {
1904 if (instr
->src
[0].src
.ssa
->bit_size
== 64) {
1905 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_cvt_f32_f64
, dst
);
1907 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1908 nir_print_instr(&instr
->instr
, stderr
);
1909 fprintf(stderr
, "\n");
1913 case nir_op_f2f64
: {
1914 if (instr
->src
[0].src
.ssa
->bit_size
== 32) {
1915 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_cvt_f64_f32
, dst
);
1917 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1918 nir_print_instr(&instr
->instr
, stderr
);
1919 fprintf(stderr
, "\n");
1923 case nir_op_i2f32
: {
1924 assert(dst
.size() == 1);
1925 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_cvt_f32_i32
, dst
);
1928 case nir_op_i2f64
: {
1929 if (instr
->src
[0].src
.ssa
->bit_size
== 32) {
1930 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_cvt_f64_i32
, dst
);
1931 } else if (instr
->src
[0].src
.ssa
->bit_size
== 64) {
1932 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
1933 RegClass rc
= RegClass(src
.type(), 1);
1934 Temp lower
= bld
.tmp(rc
), upper
= bld
.tmp(rc
);
1935 bld
.pseudo(aco_opcode::p_split_vector
, Definition(lower
), Definition(upper
), src
);
1936 lower
= bld
.vop1(aco_opcode::v_cvt_f64_u32
, bld
.def(v2
), lower
);
1937 upper
= bld
.vop1(aco_opcode::v_cvt_f64_i32
, bld
.def(v2
), upper
);
1938 upper
= bld
.vop3(aco_opcode::v_ldexp_f64
, bld
.def(v2
), upper
, Operand(32u));
1939 bld
.vop3(aco_opcode::v_add_f64
, Definition(dst
), lower
, upper
);
1942 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1943 nir_print_instr(&instr
->instr
, stderr
);
1944 fprintf(stderr
, "\n");
1948 case nir_op_u2f32
: {
1949 assert(dst
.size() == 1);
1950 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_cvt_f32_u32
, dst
);
1953 case nir_op_u2f64
: {
1954 if (instr
->src
[0].src
.ssa
->bit_size
== 32) {
1955 emit_vop1_instruction(ctx
, instr
, aco_opcode::v_cvt_f64_u32
, dst
);
1956 } else if (instr
->src
[0].src
.ssa
->bit_size
== 64) {
1957 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
1958 RegClass rc
= RegClass(src
.type(), 1);
1959 Temp lower
= bld
.tmp(rc
), upper
= bld
.tmp(rc
);
1960 bld
.pseudo(aco_opcode::p_split_vector
, Definition(lower
), Definition(upper
), src
);
1961 lower
= bld
.vop1(aco_opcode::v_cvt_f64_u32
, bld
.def(v2
), lower
);
1962 upper
= bld
.vop1(aco_opcode::v_cvt_f64_u32
, bld
.def(v2
), upper
);
1963 upper
= bld
.vop3(aco_opcode::v_ldexp_f64
, bld
.def(v2
), upper
, Operand(32u));
1964 bld
.vop3(aco_opcode::v_add_f64
, Definition(dst
), lower
, upper
);
1966 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1967 nir_print_instr(&instr
->instr
, stderr
);
1968 fprintf(stderr
, "\n");
1972 case nir_op_f2i32
: {
1973 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
1974 if (instr
->src
[0].src
.ssa
->bit_size
== 32) {
1975 if (dst
.type() == RegType::vgpr
)
1976 bld
.vop1(aco_opcode::v_cvt_i32_f32
, Definition(dst
), src
);
1978 bld
.pseudo(aco_opcode::p_as_uniform
, Definition(dst
),
1979 bld
.vop1(aco_opcode::v_cvt_i32_f32
, bld
.def(v1
), src
));
1981 } else if (instr
->src
[0].src
.ssa
->bit_size
== 64) {
1982 if (dst
.type() == RegType::vgpr
)
1983 bld
.vop1(aco_opcode::v_cvt_i32_f64
, Definition(dst
), src
);
1985 bld
.pseudo(aco_opcode::p_as_uniform
, Definition(dst
),
1986 bld
.vop1(aco_opcode::v_cvt_i32_f64
, bld
.def(v1
), src
));
1989 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
1990 nir_print_instr(&instr
->instr
, stderr
);
1991 fprintf(stderr
, "\n");
1995 case nir_op_f2u32
: {
1996 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
1997 if (instr
->src
[0].src
.ssa
->bit_size
== 32) {
1998 if (dst
.type() == RegType::vgpr
)
1999 bld
.vop1(aco_opcode::v_cvt_u32_f32
, Definition(dst
), src
);
2001 bld
.pseudo(aco_opcode::p_as_uniform
, Definition(dst
),
2002 bld
.vop1(aco_opcode::v_cvt_u32_f32
, bld
.def(v1
), src
));
2004 } else if (instr
->src
[0].src
.ssa
->bit_size
== 64) {
2005 if (dst
.type() == RegType::vgpr
)
2006 bld
.vop1(aco_opcode::v_cvt_u32_f64
, Definition(dst
), src
);
2008 bld
.pseudo(aco_opcode::p_as_uniform
, Definition(dst
),
2009 bld
.vop1(aco_opcode::v_cvt_u32_f64
, bld
.def(v1
), src
));
2012 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
2013 nir_print_instr(&instr
->instr
, stderr
);
2014 fprintf(stderr
, "\n");
2018 case nir_op_f2i64
: {
2019 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
2020 if (instr
->src
[0].src
.ssa
->bit_size
== 32 && dst
.type() == RegType::vgpr
) {
2021 Temp exponent
= bld
.vop1(aco_opcode::v_frexp_exp_i32_f32
, bld
.def(v1
), src
);
2022 exponent
= bld
.vop3(aco_opcode::v_med3_i32
, bld
.def(v1
), Operand(0x0u
), exponent
, Operand(64u));
2023 Temp mantissa
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(0x7fffffu
), src
);
2024 Temp sign
= bld
.vop2(aco_opcode::v_ashrrev_i32
, bld
.def(v1
), Operand(31u), src
);
2025 mantissa
= bld
.vop2(aco_opcode::v_or_b32
, bld
.def(v1
), Operand(0x800000u
), mantissa
);
2026 mantissa
= bld
.vop2(aco_opcode::v_lshlrev_b32
, bld
.def(v1
), Operand(7u), mantissa
);
2027 mantissa
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), Operand(0u), mantissa
);
2028 Temp new_exponent
= bld
.tmp(v1
);
2029 Temp borrow
= bld
.vsub32(Definition(new_exponent
), Operand(63u), exponent
, true).def(1).getTemp();
2030 if (ctx
->program
->chip_class
>= GFX8
)
2031 mantissa
= bld
.vop3(aco_opcode::v_lshrrev_b64
, bld
.def(v2
), new_exponent
, mantissa
);
2033 mantissa
= bld
.vop3(aco_opcode::v_lshr_b64
, bld
.def(v2
), mantissa
, new_exponent
);
2034 Temp saturate
= bld
.vop1(aco_opcode::v_bfrev_b32
, bld
.def(v1
), Operand(0xfffffffeu
));
2035 Temp lower
= bld
.tmp(v1
), upper
= bld
.tmp(v1
);
2036 bld
.pseudo(aco_opcode::p_split_vector
, Definition(lower
), Definition(upper
), mantissa
);
2037 lower
= bld
.vop2_e64(aco_opcode::v_cndmask_b32
, bld
.def(v1
), lower
, Operand(0xffffffffu
), borrow
);
2038 upper
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), upper
, saturate
, borrow
);
2039 lower
= bld
.vop2(aco_opcode::v_xor_b32
, bld
.def(v1
), sign
, lower
);
2040 upper
= bld
.vop2(aco_opcode::v_xor_b32
, bld
.def(v1
), sign
, upper
);
2041 Temp new_lower
= bld
.tmp(v1
);
2042 borrow
= bld
.vsub32(Definition(new_lower
), lower
, sign
, true).def(1).getTemp();
2043 Temp new_upper
= bld
.vsub32(bld
.def(v1
), upper
, sign
, false, borrow
);
2044 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), new_lower
, new_upper
);
2046 } else if (instr
->src
[0].src
.ssa
->bit_size
== 32 && dst
.type() == RegType::sgpr
) {
2047 if (src
.type() == RegType::vgpr
)
2048 src
= bld
.as_uniform(src
);
2049 Temp exponent
= bld
.sop2(aco_opcode::s_bfe_u32
, bld
.def(s1
), bld
.def(s1
, scc
), src
, Operand(0x80017u
));
2050 exponent
= bld
.sop2(aco_opcode::s_sub_u32
, bld
.def(s1
), bld
.def(s1
, scc
), exponent
, Operand(126u));
2051 exponent
= bld
.sop2(aco_opcode::s_max_u32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(0u), exponent
);
2052 exponent
= bld
.sop2(aco_opcode::s_min_u32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(64u), exponent
);
2053 Temp mantissa
= bld
.sop2(aco_opcode::s_and_b32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(0x7fffffu
), src
);
2054 Temp sign
= bld
.sop2(aco_opcode::s_ashr_i32
, bld
.def(s1
), bld
.def(s1
, scc
), src
, Operand(31u));
2055 mantissa
= bld
.sop2(aco_opcode::s_or_b32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(0x800000u
), mantissa
);
2056 mantissa
= bld
.sop2(aco_opcode::s_lshl_b32
, bld
.def(s1
), bld
.def(s1
, scc
), mantissa
, Operand(7u));
2057 mantissa
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s2
), Operand(0u), mantissa
);
2058 exponent
= bld
.sop2(aco_opcode::s_sub_u32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(63u), exponent
);
2059 mantissa
= bld
.sop2(aco_opcode::s_lshr_b64
, bld
.def(s2
), bld
.def(s1
, scc
), mantissa
, exponent
);
2060 Temp cond
= bld
.sopc(aco_opcode::s_cmp_eq_u32
, bld
.def(s1
, scc
), exponent
, Operand(0xffffffffu
)); // exp >= 64
2061 Temp saturate
= bld
.sop1(aco_opcode::s_brev_b64
, bld
.def(s2
), Operand(0xfffffffeu
));
2062 mantissa
= bld
.sop2(aco_opcode::s_cselect_b64
, bld
.def(s2
), saturate
, mantissa
, cond
);
2063 Temp lower
= bld
.tmp(s1
), upper
= bld
.tmp(s1
);
2064 bld
.pseudo(aco_opcode::p_split_vector
, Definition(lower
), Definition(upper
), mantissa
);
2065 lower
= bld
.sop2(aco_opcode::s_xor_b32
, bld
.def(s1
), bld
.def(s1
, scc
), sign
, lower
);
2066 upper
= bld
.sop2(aco_opcode::s_xor_b32
, bld
.def(s1
), bld
.def(s1
, scc
), sign
, upper
);
2067 Temp borrow
= bld
.tmp(s1
);
2068 lower
= bld
.sop2(aco_opcode::s_sub_u32
, bld
.def(s1
), bld
.scc(Definition(borrow
)), lower
, sign
);
2069 upper
= bld
.sop2(aco_opcode::s_subb_u32
, bld
.def(s1
), bld
.def(s1
, scc
), upper
, sign
, borrow
);
2070 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lower
, upper
);
2072 } else if (instr
->src
[0].src
.ssa
->bit_size
== 64) {
2073 Temp vec
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s2
), Operand(0u), Operand(0x3df00000u
));
2074 Temp trunc
= emit_trunc_f64(ctx
, bld
, bld
.def(v2
), src
);
2075 Temp mul
= bld
.vop3(aco_opcode::v_mul_f64
, bld
.def(v2
), trunc
, vec
);
2076 vec
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s2
), Operand(0u), Operand(0xc1f00000u
));
2077 Temp floor
= emit_floor_f64(ctx
, bld
, bld
.def(v2
), mul
);
2078 Temp fma
= bld
.vop3(aco_opcode::v_fma_f64
, bld
.def(v2
), floor
, vec
, trunc
);
2079 Temp lower
= bld
.vop1(aco_opcode::v_cvt_u32_f64
, bld
.def(v1
), fma
);
2080 Temp upper
= bld
.vop1(aco_opcode::v_cvt_i32_f64
, bld
.def(v1
), floor
);
2081 if (dst
.type() == RegType::sgpr
) {
2082 lower
= bld
.as_uniform(lower
);
2083 upper
= bld
.as_uniform(upper
);
2085 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lower
, upper
);
2088 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
2089 nir_print_instr(&instr
->instr
, stderr
);
2090 fprintf(stderr
, "\n");
2094 case nir_op_f2u64
: {
2095 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
2096 if (instr
->src
[0].src
.ssa
->bit_size
== 32 && dst
.type() == RegType::vgpr
) {
2097 Temp exponent
= bld
.vop1(aco_opcode::v_frexp_exp_i32_f32
, bld
.def(v1
), src
);
2098 Temp exponent_in_range
= bld
.vopc(aco_opcode::v_cmp_ge_i32
, bld
.hint_vcc(bld
.def(bld
.lm
)), Operand(64u), exponent
);
2099 exponent
= bld
.vop2(aco_opcode::v_max_i32
, bld
.def(v1
), Operand(0x0u
), exponent
);
2100 Temp mantissa
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(0x7fffffu
), src
);
2101 mantissa
= bld
.vop2(aco_opcode::v_or_b32
, bld
.def(v1
), Operand(0x800000u
), mantissa
);
2102 Temp exponent_small
= bld
.vsub32(bld
.def(v1
), Operand(24u), exponent
);
2103 Temp small
= bld
.vop2(aco_opcode::v_lshrrev_b32
, bld
.def(v1
), exponent_small
, mantissa
);
2104 mantissa
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), Operand(0u), mantissa
);
2105 Temp new_exponent
= bld
.tmp(v1
);
2106 Temp cond_small
= bld
.vsub32(Definition(new_exponent
), exponent
, Operand(24u), true).def(1).getTemp();
2107 if (ctx
->program
->chip_class
>= GFX8
)
2108 mantissa
= bld
.vop3(aco_opcode::v_lshlrev_b64
, bld
.def(v2
), new_exponent
, mantissa
);
2110 mantissa
= bld
.vop3(aco_opcode::v_lshl_b64
, bld
.def(v2
), mantissa
, new_exponent
);
2111 Temp lower
= bld
.tmp(v1
), upper
= bld
.tmp(v1
);
2112 bld
.pseudo(aco_opcode::p_split_vector
, Definition(lower
), Definition(upper
), mantissa
);
2113 lower
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), lower
, small
, cond_small
);
2114 upper
= bld
.vop2_e64(aco_opcode::v_cndmask_b32
, bld
.def(v1
), upper
, Operand(0u), cond_small
);
2115 lower
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), Operand(0xffffffffu
), lower
, exponent_in_range
);
2116 upper
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), Operand(0xffffffffu
), upper
, exponent_in_range
);
2117 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lower
, upper
);
2119 } else if (instr
->src
[0].src
.ssa
->bit_size
== 32 && dst
.type() == RegType::sgpr
) {
2120 if (src
.type() == RegType::vgpr
)
2121 src
= bld
.as_uniform(src
);
2122 Temp exponent
= bld
.sop2(aco_opcode::s_bfe_u32
, bld
.def(s1
), bld
.def(s1
, scc
), src
, Operand(0x80017u
));
2123 exponent
= bld
.sop2(aco_opcode::s_sub_u32
, bld
.def(s1
), bld
.def(s1
, scc
), exponent
, Operand(126u));
2124 exponent
= bld
.sop2(aco_opcode::s_max_u32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(0u), exponent
);
2125 Temp mantissa
= bld
.sop2(aco_opcode::s_and_b32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(0x7fffffu
), src
);
2126 mantissa
= bld
.sop2(aco_opcode::s_or_b32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(0x800000u
), mantissa
);
2127 Temp exponent_small
= bld
.sop2(aco_opcode::s_sub_u32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(24u), exponent
);
2128 Temp small
= bld
.sop2(aco_opcode::s_lshr_b32
, bld
.def(s1
), bld
.def(s1
, scc
), mantissa
, exponent_small
);
2129 mantissa
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s2
), Operand(0u), mantissa
);
2130 Temp exponent_large
= bld
.sop2(aco_opcode::s_sub_u32
, bld
.def(s1
), bld
.def(s1
, scc
), exponent
, Operand(24u));
2131 mantissa
= bld
.sop2(aco_opcode::s_lshl_b64
, bld
.def(s2
), bld
.def(s1
, scc
), mantissa
, exponent_large
);
2132 Temp cond
= bld
.sopc(aco_opcode::s_cmp_ge_i32
, bld
.def(s1
, scc
), Operand(64u), exponent
);
2133 mantissa
= bld
.sop2(aco_opcode::s_cselect_b64
, bld
.def(s2
), mantissa
, Operand(0xffffffffu
), cond
);
2134 Temp lower
= bld
.tmp(s1
), upper
= bld
.tmp(s1
);
2135 bld
.pseudo(aco_opcode::p_split_vector
, Definition(lower
), Definition(upper
), mantissa
);
2136 Temp cond_small
= bld
.sopc(aco_opcode::s_cmp_le_i32
, bld
.def(s1
, scc
), exponent
, Operand(24u));
2137 lower
= bld
.sop2(aco_opcode::s_cselect_b32
, bld
.def(s1
), small
, lower
, cond_small
);
2138 upper
= bld
.sop2(aco_opcode::s_cselect_b32
, bld
.def(s1
), Operand(0u), upper
, cond_small
);
2139 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lower
, upper
);
2141 } else if (instr
->src
[0].src
.ssa
->bit_size
== 64) {
2142 Temp vec
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s2
), Operand(0u), Operand(0x3df00000u
));
2143 Temp trunc
= emit_trunc_f64(ctx
, bld
, bld
.def(v2
), src
);
2144 Temp mul
= bld
.vop3(aco_opcode::v_mul_f64
, bld
.def(v2
), trunc
, vec
);
2145 vec
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s2
), Operand(0u), Operand(0xc1f00000u
));
2146 Temp floor
= emit_floor_f64(ctx
, bld
, bld
.def(v2
), mul
);
2147 Temp fma
= bld
.vop3(aco_opcode::v_fma_f64
, bld
.def(v2
), floor
, vec
, trunc
);
2148 Temp lower
= bld
.vop1(aco_opcode::v_cvt_u32_f64
, bld
.def(v1
), fma
);
2149 Temp upper
= bld
.vop1(aco_opcode::v_cvt_u32_f64
, bld
.def(v1
), floor
);
2150 if (dst
.type() == RegType::sgpr
) {
2151 lower
= bld
.as_uniform(lower
);
2152 upper
= bld
.as_uniform(upper
);
2154 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lower
, upper
);
2157 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
2158 nir_print_instr(&instr
->instr
, stderr
);
2159 fprintf(stderr
, "\n");
2163 case nir_op_b2f32
: {
2164 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
2165 assert(src
.regClass() == bld
.lm
);
2167 if (dst
.regClass() == s1
) {
2168 src
= bool_to_scalar_condition(ctx
, src
);
2169 bld
.sop2(aco_opcode::s_mul_i32
, Definition(dst
), Operand(0x3f800000u
), src
);
2170 } else if (dst
.regClass() == v1
) {
2171 bld
.vop2_e64(aco_opcode::v_cndmask_b32
, Definition(dst
), Operand(0u), Operand(0x3f800000u
), src
);
2173 unreachable("Wrong destination register class for nir_op_b2f32.");
2177 case nir_op_b2f64
: {
2178 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
2179 assert(src
.regClass() == bld
.lm
);
2181 if (dst
.regClass() == s2
) {
2182 src
= bool_to_scalar_condition(ctx
, src
);
2183 bld
.sop2(aco_opcode::s_cselect_b64
, Definition(dst
), Operand(0x3f800000u
), Operand(0u), bld
.scc(src
));
2184 } else if (dst
.regClass() == v2
) {
2185 Temp one
= bld
.vop1(aco_opcode::v_mov_b32
, bld
.def(v2
), Operand(0x3FF00000u
));
2186 Temp upper
= bld
.vop2_e64(aco_opcode::v_cndmask_b32
, bld
.def(v1
), Operand(0u), one
, src
);
2187 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), Operand(0u), upper
);
2189 unreachable("Wrong destination register class for nir_op_b2f64.");
2193 case nir_op_i2i32
: {
2194 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
2195 if (instr
->src
[0].src
.ssa
->bit_size
== 64) {
2196 /* we can actually just say dst = src, as it would map the lower register */
2197 emit_extract_vector(ctx
, src
, 0, dst
);
2199 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
2200 nir_print_instr(&instr
->instr
, stderr
);
2201 fprintf(stderr
, "\n");
2205 case nir_op_u2u32
: {
2206 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
2207 if (instr
->src
[0].src
.ssa
->bit_size
== 16) {
2208 if (dst
.regClass() == s1
) {
2209 bld
.sop2(aco_opcode::s_and_b32
, Definition(dst
), bld
.def(s1
, scc
), Operand(0xFFFFu
), src
);
2211 // TODO: do better with SDWA
2212 bld
.vop2(aco_opcode::v_and_b32
, Definition(dst
), Operand(0xFFFFu
), src
);
2214 } else if (instr
->src
[0].src
.ssa
->bit_size
== 64) {
2215 /* we can actually just say dst = src, as it would map the lower register */
2216 emit_extract_vector(ctx
, src
, 0, dst
);
2218 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
2219 nir_print_instr(&instr
->instr
, stderr
);
2220 fprintf(stderr
, "\n");
2224 case nir_op_i2i64
: {
2225 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
2226 if (src
.regClass() == s1
) {
2227 Temp high
= bld
.sop2(aco_opcode::s_ashr_i32
, bld
.def(s1
), bld
.def(s1
, scc
), src
, Operand(31u));
2228 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), src
, high
);
2229 } else if (src
.regClass() == v1
) {
2230 Temp high
= bld
.vop2(aco_opcode::v_ashrrev_i32
, bld
.def(v1
), Operand(31u), src
);
2231 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), src
, high
);
2233 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
2234 nir_print_instr(&instr
->instr
, stderr
);
2235 fprintf(stderr
, "\n");
2239 case nir_op_u2u64
: {
2240 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
2241 if (instr
->src
[0].src
.ssa
->bit_size
== 32) {
2242 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), src
, Operand(0u));
2244 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
2245 nir_print_instr(&instr
->instr
, stderr
);
2246 fprintf(stderr
, "\n");
2250 case nir_op_b2i32
: {
2251 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
2252 assert(src
.regClass() == bld
.lm
);
2254 if (dst
.regClass() == s1
) {
2255 // TODO: in a post-RA optimization, we can check if src is in VCC, and directly use VCCNZ
2256 bool_to_scalar_condition(ctx
, src
, dst
);
2257 } else if (dst
.regClass() == v1
) {
2258 bld
.vop2_e64(aco_opcode::v_cndmask_b32
, Definition(dst
), Operand(0u), Operand(1u), src
);
2260 unreachable("Invalid register class for b2i32");
2265 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
2266 assert(dst
.regClass() == bld
.lm
);
2268 if (src
.type() == RegType::vgpr
) {
2269 assert(src
.regClass() == v1
|| src
.regClass() == v2
);
2270 assert(dst
.regClass() == bld
.lm
);
2271 bld
.vopc(src
.size() == 2 ? aco_opcode::v_cmp_lg_u64
: aco_opcode::v_cmp_lg_u32
,
2272 Definition(dst
), Operand(0u), src
).def(0).setHint(vcc
);
2274 assert(src
.regClass() == s1
|| src
.regClass() == s2
);
2276 if (src
.regClass() == s2
&& ctx
->program
->chip_class
<= GFX7
) {
2277 tmp
= bld
.sop2(aco_opcode::s_or_b64
, bld
.def(s2
), bld
.def(s1
, scc
), Operand(0u), src
).def(1).getTemp();
2279 tmp
= bld
.sopc(src
.size() == 2 ? aco_opcode::s_cmp_lg_u64
: aco_opcode::s_cmp_lg_u32
,
2280 bld
.scc(bld
.def(s1
)), Operand(0u), src
);
2282 bool_to_vector_condition(ctx
, tmp
, dst
);
2286 case nir_op_pack_64_2x32_split
: {
2287 Temp src0
= get_alu_src(ctx
, instr
->src
[0]);
2288 Temp src1
= get_alu_src(ctx
, instr
->src
[1]);
2290 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), src0
, src1
);
2293 case nir_op_unpack_64_2x32_split_x
:
2294 bld
.pseudo(aco_opcode::p_split_vector
, Definition(dst
), bld
.def(dst
.regClass()), get_alu_src(ctx
, instr
->src
[0]));
2296 case nir_op_unpack_64_2x32_split_y
:
2297 bld
.pseudo(aco_opcode::p_split_vector
, bld
.def(dst
.regClass()), Definition(dst
), get_alu_src(ctx
, instr
->src
[0]));
2299 case nir_op_pack_half_2x16
: {
2300 Temp src
= get_alu_src(ctx
, instr
->src
[0], 2);
2302 if (dst
.regClass() == v1
) {
2303 Temp src0
= bld
.tmp(v1
);
2304 Temp src1
= bld
.tmp(v1
);
2305 bld
.pseudo(aco_opcode::p_split_vector
, Definition(src0
), Definition(src1
), src
);
2306 if (!ctx
->block
->fp_mode
.care_about_round32
|| ctx
->block
->fp_mode
.round32
== fp_round_tz
)
2307 bld
.vop3(aco_opcode::v_cvt_pkrtz_f16_f32
, Definition(dst
), src0
, src1
);
2309 bld
.vop3(aco_opcode::v_cvt_pk_u16_u32
, Definition(dst
),
2310 bld
.vop1(aco_opcode::v_cvt_f32_f16
, bld
.def(v1
), src0
),
2311 bld
.vop1(aco_opcode::v_cvt_f32_f16
, bld
.def(v1
), src1
));
2313 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
2314 nir_print_instr(&instr
->instr
, stderr
);
2315 fprintf(stderr
, "\n");
2319 case nir_op_unpack_half_2x16_split_x
: {
2320 if (dst
.regClass() == v1
) {
2321 Builder
bld(ctx
->program
, ctx
->block
);
2322 bld
.vop1(aco_opcode::v_cvt_f32_f16
, Definition(dst
), get_alu_src(ctx
, instr
->src
[0]));
2324 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
2325 nir_print_instr(&instr
->instr
, stderr
);
2326 fprintf(stderr
, "\n");
2330 case nir_op_unpack_half_2x16_split_y
: {
2331 if (dst
.regClass() == v1
) {
2332 Builder
bld(ctx
->program
, ctx
->block
);
2333 /* TODO: use SDWA here */
2334 bld
.vop1(aco_opcode::v_cvt_f32_f16
, Definition(dst
),
2335 bld
.vop2(aco_opcode::v_lshrrev_b32
, bld
.def(v1
), Operand(16u), as_vgpr(ctx
, get_alu_src(ctx
, instr
->src
[0]))));
2337 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
2338 nir_print_instr(&instr
->instr
, stderr
);
2339 fprintf(stderr
, "\n");
2343 case nir_op_fquantize2f16
: {
2344 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
2345 Temp f16
= bld
.vop1(aco_opcode::v_cvt_f16_f32
, bld
.def(v1
), src
);
2348 if (ctx
->program
->chip_class
>= GFX8
) {
2349 Temp mask
= bld
.copy(bld
.def(s1
), Operand(0x36Fu
)); /* value is NOT negative/positive denormal value */
2350 cmp_res
= bld
.vopc_e64(aco_opcode::v_cmp_class_f16
, bld
.hint_vcc(bld
.def(bld
.lm
)), f16
, mask
);
2351 f32
= bld
.vop1(aco_opcode::v_cvt_f32_f16
, bld
.def(v1
), f16
);
2353 /* 0x38800000 is smallest half float value (2^-14) in 32-bit float,
2354 * so compare the result and flush to 0 if it's smaller.
2356 f32
= bld
.vop1(aco_opcode::v_cvt_f32_f16
, bld
.def(v1
), f16
);
2357 Temp smallest
= bld
.copy(bld
.def(s1
), Operand(0x38800000u
));
2358 Instruction
* vop3
= bld
.vopc_e64(aco_opcode::v_cmp_nlt_f32
, bld
.hint_vcc(bld
.def(bld
.lm
)), f32
, smallest
);
2359 static_cast<VOP3A_instruction
*>(vop3
)->abs
[0] = true;
2360 cmp_res
= vop3
->definitions
[0].getTemp();
2363 if (ctx
->block
->fp_mode
.preserve_signed_zero_inf_nan32
|| ctx
->program
->chip_class
< GFX8
) {
2364 Temp copysign_0
= bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), Operand(0u), as_vgpr(ctx
, src
));
2365 bld
.vop2(aco_opcode::v_cndmask_b32
, Definition(dst
), copysign_0
, f32
, cmp_res
);
2367 bld
.vop2(aco_opcode::v_cndmask_b32
, Definition(dst
), Operand(0u), f32
, cmp_res
);
2372 Temp bits
= get_alu_src(ctx
, instr
->src
[0]);
2373 Temp offset
= get_alu_src(ctx
, instr
->src
[1]);
2375 if (dst
.regClass() == s1
) {
2376 bld
.sop2(aco_opcode::s_bfm_b32
, Definition(dst
), bits
, offset
);
2377 } else if (dst
.regClass() == v1
) {
2378 bld
.vop3(aco_opcode::v_bfm_b32
, Definition(dst
), bits
, offset
);
2380 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
2381 nir_print_instr(&instr
->instr
, stderr
);
2382 fprintf(stderr
, "\n");
2386 case nir_op_bitfield_select
: {
2387 /* (mask & insert) | (~mask & base) */
2388 Temp bitmask
= get_alu_src(ctx
, instr
->src
[0]);
2389 Temp insert
= get_alu_src(ctx
, instr
->src
[1]);
2390 Temp base
= get_alu_src(ctx
, instr
->src
[2]);
2392 /* dst = (insert & bitmask) | (base & ~bitmask) */
2393 if (dst
.regClass() == s1
) {
2394 aco_ptr
<Instruction
> sop2
;
2395 nir_const_value
* const_bitmask
= nir_src_as_const_value(instr
->src
[0].src
);
2396 nir_const_value
* const_insert
= nir_src_as_const_value(instr
->src
[1].src
);
2398 if (const_insert
&& const_bitmask
) {
2399 lhs
= Operand(const_insert
->u32
& const_bitmask
->u32
);
2401 insert
= bld
.sop2(aco_opcode::s_and_b32
, bld
.def(s1
), bld
.def(s1
, scc
), insert
, bitmask
);
2402 lhs
= Operand(insert
);
2406 nir_const_value
* const_base
= nir_src_as_const_value(instr
->src
[2].src
);
2407 if (const_base
&& const_bitmask
) {
2408 rhs
= Operand(const_base
->u32
& ~const_bitmask
->u32
);
2410 base
= bld
.sop2(aco_opcode::s_andn2_b32
, bld
.def(s1
), bld
.def(s1
, scc
), base
, bitmask
);
2411 rhs
= Operand(base
);
2414 bld
.sop2(aco_opcode::s_or_b32
, Definition(dst
), bld
.def(s1
, scc
), rhs
, lhs
);
2416 } else if (dst
.regClass() == v1
) {
2417 if (base
.type() == RegType::sgpr
&& (bitmask
.type() == RegType::sgpr
|| (insert
.type() == RegType::sgpr
)))
2418 base
= as_vgpr(ctx
, base
);
2419 if (insert
.type() == RegType::sgpr
&& bitmask
.type() == RegType::sgpr
)
2420 insert
= as_vgpr(ctx
, insert
);
2422 bld
.vop3(aco_opcode::v_bfi_b32
, Definition(dst
), bitmask
, insert
, base
);
2425 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
2426 nir_print_instr(&instr
->instr
, stderr
);
2427 fprintf(stderr
, "\n");
2433 Temp base
= get_alu_src(ctx
, instr
->src
[0]);
2434 Temp offset
= get_alu_src(ctx
, instr
->src
[1]);
2435 Temp bits
= get_alu_src(ctx
, instr
->src
[2]);
2437 if (dst
.type() == RegType::sgpr
) {
2439 nir_const_value
* const_offset
= nir_src_as_const_value(instr
->src
[1].src
);
2440 nir_const_value
* const_bits
= nir_src_as_const_value(instr
->src
[2].src
);
2441 if (const_offset
&& const_bits
) {
2442 uint32_t const_extract
= (const_bits
->u32
<< 16) | const_offset
->u32
;
2443 extract
= Operand(const_extract
);
2447 width
= Operand(const_bits
->u32
<< 16);
2449 width
= bld
.sop2(aco_opcode::s_lshl_b32
, bld
.def(s1
), bld
.def(s1
, scc
), bits
, Operand(16u));
2451 extract
= bld
.sop2(aco_opcode::s_or_b32
, bld
.def(s1
), bld
.def(s1
, scc
), offset
, width
);
2455 if (dst
.regClass() == s1
) {
2456 if (instr
->op
== nir_op_ubfe
)
2457 opcode
= aco_opcode::s_bfe_u32
;
2459 opcode
= aco_opcode::s_bfe_i32
;
2460 } else if (dst
.regClass() == s2
) {
2461 if (instr
->op
== nir_op_ubfe
)
2462 opcode
= aco_opcode::s_bfe_u64
;
2464 opcode
= aco_opcode::s_bfe_i64
;
2466 unreachable("Unsupported BFE bit size");
2469 bld
.sop2(opcode
, Definition(dst
), bld
.def(s1
, scc
), base
, extract
);
2473 if (dst
.regClass() == v1
) {
2474 if (instr
->op
== nir_op_ubfe
)
2475 opcode
= aco_opcode::v_bfe_u32
;
2477 opcode
= aco_opcode::v_bfe_i32
;
2479 unreachable("Unsupported BFE bit size");
2482 emit_vop3a_instruction(ctx
, instr
, opcode
, dst
);
2486 case nir_op_bit_count
: {
2487 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
2488 if (src
.regClass() == s1
) {
2489 bld
.sop1(aco_opcode::s_bcnt1_i32_b32
, Definition(dst
), bld
.def(s1
, scc
), src
);
2490 } else if (src
.regClass() == v1
) {
2491 bld
.vop3(aco_opcode::v_bcnt_u32_b32
, Definition(dst
), src
, Operand(0u));
2492 } else if (src
.regClass() == v2
) {
2493 bld
.vop3(aco_opcode::v_bcnt_u32_b32
, Definition(dst
),
2494 emit_extract_vector(ctx
, src
, 1, v1
),
2495 bld
.vop3(aco_opcode::v_bcnt_u32_b32
, bld
.def(v1
),
2496 emit_extract_vector(ctx
, src
, 0, v1
), Operand(0u)));
2497 } else if (src
.regClass() == s2
) {
2498 bld
.sop1(aco_opcode::s_bcnt1_i32_b64
, Definition(dst
), bld
.def(s1
, scc
), src
);
2500 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
2501 nir_print_instr(&instr
->instr
, stderr
);
2502 fprintf(stderr
, "\n");
2507 emit_comparison(ctx
, instr
, dst
, aco_opcode::v_cmp_lt_f32
, aco_opcode::v_cmp_lt_f64
);
2511 emit_comparison(ctx
, instr
, dst
, aco_opcode::v_cmp_ge_f32
, aco_opcode::v_cmp_ge_f64
);
2515 emit_comparison(ctx
, instr
, dst
, aco_opcode::v_cmp_eq_f32
, aco_opcode::v_cmp_eq_f64
);
2519 emit_comparison(ctx
, instr
, dst
, aco_opcode::v_cmp_neq_f32
, aco_opcode::v_cmp_neq_f64
);
2523 emit_comparison(ctx
, instr
, dst
, aco_opcode::v_cmp_lt_i32
, aco_opcode::v_cmp_lt_i64
, aco_opcode::s_cmp_lt_i32
);
2527 emit_comparison(ctx
, instr
, dst
, aco_opcode::v_cmp_ge_i32
, aco_opcode::v_cmp_ge_i64
, aco_opcode::s_cmp_ge_i32
);
2531 if (instr
->src
[0].src
.ssa
->bit_size
== 1)
2532 emit_boolean_logic(ctx
, instr
, Builder::s_xnor
, dst
);
2534 emit_comparison(ctx
, instr
, dst
, aco_opcode::v_cmp_eq_i32
, aco_opcode::v_cmp_eq_i64
, aco_opcode::s_cmp_eq_i32
,
2535 ctx
->program
->chip_class
>= GFX8
? aco_opcode::s_cmp_eq_u64
: aco_opcode::num_opcodes
);
2539 if (instr
->src
[0].src
.ssa
->bit_size
== 1)
2540 emit_boolean_logic(ctx
, instr
, Builder::s_xor
, dst
);
2542 emit_comparison(ctx
, instr
, dst
, aco_opcode::v_cmp_lg_i32
, aco_opcode::v_cmp_lg_i64
, aco_opcode::s_cmp_lg_i32
,
2543 ctx
->program
->chip_class
>= GFX8
? aco_opcode::s_cmp_lg_u64
: aco_opcode::num_opcodes
);
2547 emit_comparison(ctx
, instr
, dst
, aco_opcode::v_cmp_lt_u32
, aco_opcode::v_cmp_lt_u64
, aco_opcode::s_cmp_lt_u32
);
2551 emit_comparison(ctx
, instr
, dst
, aco_opcode::v_cmp_ge_u32
, aco_opcode::v_cmp_ge_u64
, aco_opcode::s_cmp_ge_u32
);
2556 case nir_op_fddx_fine
:
2557 case nir_op_fddy_fine
:
2558 case nir_op_fddx_coarse
:
2559 case nir_op_fddy_coarse
: {
2560 Temp src
= get_alu_src(ctx
, instr
->src
[0]);
2561 uint16_t dpp_ctrl1
, dpp_ctrl2
;
2562 if (instr
->op
== nir_op_fddx_fine
) {
2563 dpp_ctrl1
= dpp_quad_perm(0, 0, 2, 2);
2564 dpp_ctrl2
= dpp_quad_perm(1, 1, 3, 3);
2565 } else if (instr
->op
== nir_op_fddy_fine
) {
2566 dpp_ctrl1
= dpp_quad_perm(0, 1, 0, 1);
2567 dpp_ctrl2
= dpp_quad_perm(2, 3, 2, 3);
2569 dpp_ctrl1
= dpp_quad_perm(0, 0, 0, 0);
2570 if (instr
->op
== nir_op_fddx
|| instr
->op
== nir_op_fddx_coarse
)
2571 dpp_ctrl2
= dpp_quad_perm(1, 1, 1, 1);
2573 dpp_ctrl2
= dpp_quad_perm(2, 2, 2, 2);
2577 if (ctx
->program
->chip_class
>= GFX8
) {
2578 Temp tl
= bld
.vop1_dpp(aco_opcode::v_mov_b32
, bld
.def(v1
), src
, dpp_ctrl1
);
2579 tmp
= bld
.vop2_dpp(aco_opcode::v_sub_f32
, bld
.def(v1
), src
, tl
, dpp_ctrl2
);
2581 Temp tl
= bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), src
, (1 << 15) | dpp_ctrl1
);
2582 Temp tr
= bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), src
, (1 << 15) | dpp_ctrl2
);
2583 tmp
= bld
.vop2(aco_opcode::v_sub_f32
, bld
.def(v1
), tr
, tl
);
2585 emit_wqm(ctx
, tmp
, dst
, true);
2589 fprintf(stderr
, "Unknown NIR ALU instr: ");
2590 nir_print_instr(&instr
->instr
, stderr
);
2591 fprintf(stderr
, "\n");
2595 void visit_load_const(isel_context
*ctx
, nir_load_const_instr
*instr
)
2597 Temp dst
= get_ssa_temp(ctx
, &instr
->def
);
2599 // TODO: we really want to have the resulting type as this would allow for 64bit literals
2600 // which get truncated the lsb if double and msb if int
2601 // for now, we only use s_mov_b64 with 64bit inline constants
2602 assert(instr
->def
.num_components
== 1 && "Vector load_const should be lowered to scalar.");
2603 assert(dst
.type() == RegType::sgpr
);
2605 Builder
bld(ctx
->program
, ctx
->block
);
2607 if (instr
->def
.bit_size
== 1) {
2608 assert(dst
.regClass() == bld
.lm
);
2609 int val
= instr
->value
[0].b
? -1 : 0;
2610 Operand op
= bld
.lm
.size() == 1 ? Operand((uint32_t) val
) : Operand((uint64_t) val
);
2611 bld
.sop1(Builder::s_mov
, Definition(dst
), op
);
2612 } else if (dst
.size() == 1) {
2613 bld
.copy(Definition(dst
), Operand(instr
->value
[0].u32
));
2615 assert(dst
.size() != 1);
2616 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, dst
.size(), 1)};
2617 if (instr
->def
.bit_size
== 64)
2618 for (unsigned i
= 0; i
< dst
.size(); i
++)
2619 vec
->operands
[i
] = Operand
{(uint32_t)(instr
->value
[0].u64
>> i
* 32)};
2621 for (unsigned i
= 0; i
< dst
.size(); i
++)
2622 vec
->operands
[i
] = Operand
{instr
->value
[i
].u32
};
2624 vec
->definitions
[0] = Definition(dst
);
2625 ctx
->block
->instructions
.emplace_back(std::move(vec
));
2629 uint32_t widen_mask(uint32_t mask
, unsigned multiplier
)
2631 uint32_t new_mask
= 0;
2632 for(unsigned i
= 0; i
< 32 && (1u << i
) <= mask
; ++i
)
2633 if (mask
& (1u << i
))
2634 new_mask
|= ((1u << multiplier
) - 1u) << (i
* multiplier
);
2638 Operand
load_lds_size_m0(isel_context
*ctx
)
2640 /* TODO: m0 does not need to be initialized on GFX9+ */
2641 Builder
bld(ctx
->program
, ctx
->block
);
2642 return bld
.m0((Temp
)bld
.sopk(aco_opcode::s_movk_i32
, bld
.def(s1
, m0
), 0xffff));
2645 Temp
load_lds(isel_context
*ctx
, unsigned elem_size_bytes
, Temp dst
,
2646 Temp address
, unsigned base_offset
, unsigned align
)
2648 assert(util_is_power_of_two_nonzero(align
) && align
>= 4);
2650 Builder
bld(ctx
->program
, ctx
->block
);
2652 Operand m
= load_lds_size_m0(ctx
);
2654 unsigned num_components
= dst
.size() * 4u / elem_size_bytes
;
2655 unsigned bytes_read
= 0;
2656 unsigned result_size
= 0;
2657 unsigned total_bytes
= num_components
* elem_size_bytes
;
2658 std::array
<Temp
, NIR_MAX_VEC_COMPONENTS
> result
;
2659 bool large_ds_read
= ctx
->options
->chip_class
>= GFX7
;
2660 bool usable_read2
= ctx
->options
->chip_class
>= GFX7
;
2662 while (bytes_read
< total_bytes
) {
2663 unsigned todo
= total_bytes
- bytes_read
;
2664 bool aligned8
= bytes_read
% 8 == 0 && align
% 8 == 0;
2665 bool aligned16
= bytes_read
% 16 == 0 && align
% 16 == 0;
2667 aco_opcode op
= aco_opcode::last_opcode
;
2669 if (todo
>= 16 && aligned16
&& large_ds_read
) {
2670 op
= aco_opcode::ds_read_b128
;
2672 } else if (todo
>= 16 && aligned8
&& usable_read2
) {
2673 op
= aco_opcode::ds_read2_b64
;
2676 } else if (todo
>= 12 && aligned16
&& large_ds_read
) {
2677 op
= aco_opcode::ds_read_b96
;
2679 } else if (todo
>= 8 && aligned8
) {
2680 op
= aco_opcode::ds_read_b64
;
2682 } else if (todo
>= 8 && usable_read2
) {
2683 op
= aco_opcode::ds_read2_b32
;
2686 } else if (todo
>= 4) {
2687 op
= aco_opcode::ds_read_b32
;
2692 assert(todo
% elem_size_bytes
== 0);
2693 unsigned num_elements
= todo
/ elem_size_bytes
;
2694 unsigned offset
= base_offset
+ bytes_read
;
2695 unsigned max_offset
= read2
? 1019 : 65535;
2697 Temp address_offset
= address
;
2698 if (offset
> max_offset
) {
2699 address_offset
= bld
.vadd32(bld
.def(v1
), Operand(base_offset
), address_offset
);
2700 offset
= bytes_read
;
2702 assert(offset
<= max_offset
); /* bytes_read shouldn't be large enough for this to happen */
2705 if (num_components
== 1 && dst
.type() == RegType::vgpr
)
2708 res
= bld
.tmp(RegClass(RegType::vgpr
, todo
/ 4));
2711 res
= bld
.ds(op
, Definition(res
), address_offset
, m
, offset
/ (todo
/ 2), (offset
/ (todo
/ 2)) + 1);
2713 res
= bld
.ds(op
, Definition(res
), address_offset
, m
, offset
);
2715 if (num_components
== 1) {
2716 assert(todo
== total_bytes
);
2717 if (dst
.type() == RegType::sgpr
)
2718 bld
.pseudo(aco_opcode::p_as_uniform
, Definition(dst
), res
);
2722 if (dst
.type() == RegType::sgpr
) {
2723 Temp new_res
= bld
.tmp(RegType::sgpr
, res
.size());
2724 expand_vector(ctx
, res
, new_res
, res
.size(), (1 << res
.size()) - 1);
2728 if (num_elements
== 1) {
2729 result
[result_size
++] = res
;
2731 assert(res
!= dst
&& res
.size() % num_elements
== 0);
2732 aco_ptr
<Pseudo_instruction
> split
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_split_vector
, Format::PSEUDO
, 1, num_elements
)};
2733 split
->operands
[0] = Operand(res
);
2734 for (unsigned i
= 0; i
< num_elements
; i
++)
2735 split
->definitions
[i
] = Definition(result
[result_size
++] = bld
.tmp(res
.type(), elem_size_bytes
/ 4));
2736 ctx
->block
->instructions
.emplace_back(std::move(split
));
2742 assert(result_size
== num_components
&& result_size
> 1);
2743 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, result_size
, 1)};
2744 for (unsigned i
= 0; i
< result_size
; i
++)
2745 vec
->operands
[i
] = Operand(result
[i
]);
2746 vec
->definitions
[0] = Definition(dst
);
2747 ctx
->block
->instructions
.emplace_back(std::move(vec
));
2748 ctx
->allocated_vec
.emplace(dst
.id(), result
);
2753 Temp
extract_subvector(isel_context
*ctx
, Temp data
, unsigned start
, unsigned size
, RegType type
)
2755 if (start
== 0 && size
== data
.size())
2756 return type
== RegType::vgpr
? as_vgpr(ctx
, data
) : data
;
2758 unsigned size_hint
= 1;
2759 auto it
= ctx
->allocated_vec
.find(data
.id());
2760 if (it
!= ctx
->allocated_vec
.end())
2761 size_hint
= it
->second
[0].size();
2762 if (size
% size_hint
|| start
% size_hint
)
2769 for (unsigned i
= 0; i
< size
; i
++)
2770 elems
[i
] = emit_extract_vector(ctx
, data
, start
+ i
, RegClass(type
, size_hint
));
2773 return type
== RegType::vgpr
? as_vgpr(ctx
, elems
[0]) : elems
[0];
2775 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, size
, 1)};
2776 for (unsigned i
= 0; i
< size
; i
++)
2777 vec
->operands
[i
] = Operand(elems
[i
]);
2778 Temp res
= {ctx
->program
->allocateId(), RegClass(type
, size
* size_hint
)};
2779 vec
->definitions
[0] = Definition(res
);
2780 ctx
->block
->instructions
.emplace_back(std::move(vec
));
2784 void ds_write_helper(isel_context
*ctx
, Operand m
, Temp address
, Temp data
, unsigned data_start
, unsigned total_size
, unsigned offset0
, unsigned offset1
, unsigned align
)
2786 Builder
bld(ctx
->program
, ctx
->block
);
2787 unsigned bytes_written
= 0;
2788 bool large_ds_write
= ctx
->options
->chip_class
>= GFX7
;
2789 bool usable_write2
= ctx
->options
->chip_class
>= GFX7
;
2791 while (bytes_written
< total_size
* 4) {
2792 unsigned todo
= total_size
* 4 - bytes_written
;
2793 bool aligned8
= bytes_written
% 8 == 0 && align
% 8 == 0;
2794 bool aligned16
= bytes_written
% 16 == 0 && align
% 16 == 0;
2796 aco_opcode op
= aco_opcode::last_opcode
;
2797 bool write2
= false;
2799 if (todo
>= 16 && aligned16
&& large_ds_write
) {
2800 op
= aco_opcode::ds_write_b128
;
2802 } else if (todo
>= 16 && aligned8
&& usable_write2
) {
2803 op
= aco_opcode::ds_write2_b64
;
2806 } else if (todo
>= 12 && aligned16
&& large_ds_write
) {
2807 op
= aco_opcode::ds_write_b96
;
2809 } else if (todo
>= 8 && aligned8
) {
2810 op
= aco_opcode::ds_write_b64
;
2812 } else if (todo
>= 8 && usable_write2
) {
2813 op
= aco_opcode::ds_write2_b32
;
2816 } else if (todo
>= 4) {
2817 op
= aco_opcode::ds_write_b32
;
2823 unsigned offset
= offset0
+ offset1
+ bytes_written
;
2824 unsigned max_offset
= write2
? 1020 : 65535;
2825 Temp address_offset
= address
;
2826 if (offset
> max_offset
) {
2827 address_offset
= bld
.vadd32(bld
.def(v1
), Operand(offset0
), address_offset
);
2828 offset
= offset1
+ bytes_written
;
2830 assert(offset
<= max_offset
); /* offset1 shouldn't be large enough for this to happen */
2833 Temp val0
= extract_subvector(ctx
, data
, data_start
+ (bytes_written
>> 2), size
/ 2, RegType::vgpr
);
2834 Temp val1
= extract_subvector(ctx
, data
, data_start
+ (bytes_written
>> 2) + 1, size
/ 2, RegType::vgpr
);
2835 bld
.ds(op
, address_offset
, val0
, val1
, m
, offset
/ size
/ 2, (offset
/ size
/ 2) + 1);
2837 Temp val
= extract_subvector(ctx
, data
, data_start
+ (bytes_written
>> 2), size
, RegType::vgpr
);
2838 bld
.ds(op
, address_offset
, val
, m
, offset
);
2841 bytes_written
+= size
* 4;
2845 void store_lds(isel_context
*ctx
, unsigned elem_size_bytes
, Temp data
, uint32_t wrmask
,
2846 Temp address
, unsigned base_offset
, unsigned align
)
2848 assert(util_is_power_of_two_nonzero(align
) && align
>= 4);
2849 assert(elem_size_bytes
== 4 || elem_size_bytes
== 8);
2851 Operand m
= load_lds_size_m0(ctx
);
2853 /* we need at most two stores, assuming that the writemask is at most 4 bits wide */
2854 assert(wrmask
<= 0x0f);
2855 int start
[2], count
[2];
2856 u_bit_scan_consecutive_range(&wrmask
, &start
[0], &count
[0]);
2857 u_bit_scan_consecutive_range(&wrmask
, &start
[1], &count
[1]);
2858 assert(wrmask
== 0);
2860 /* one combined store is sufficient */
2861 if (count
[0] == count
[1] && (align
% elem_size_bytes
) == 0 && (base_offset
% elem_size_bytes
) == 0) {
2862 Builder
bld(ctx
->program
, ctx
->block
);
2864 Temp address_offset
= address
;
2865 if ((base_offset
/ elem_size_bytes
) + start
[1] > 255) {
2866 address_offset
= bld
.vadd32(bld
.def(v1
), Operand(base_offset
), address_offset
);
2870 assert(count
[0] == 1);
2871 RegClass
xtract_rc(RegType::vgpr
, elem_size_bytes
/ 4);
2873 Temp val0
= emit_extract_vector(ctx
, data
, start
[0], xtract_rc
);
2874 Temp val1
= emit_extract_vector(ctx
, data
, start
[1], xtract_rc
);
2875 aco_opcode op
= elem_size_bytes
== 4 ? aco_opcode::ds_write2_b32
: aco_opcode::ds_write2_b64
;
2876 base_offset
= base_offset
/ elem_size_bytes
;
2877 bld
.ds(op
, address_offset
, val0
, val1
, m
,
2878 base_offset
+ start
[0], base_offset
+ start
[1]);
2882 for (unsigned i
= 0; i
< 2; i
++) {
2886 unsigned elem_size_words
= elem_size_bytes
/ 4;
2887 ds_write_helper(ctx
, m
, address
, data
, start
[i
] * elem_size_words
, count
[i
] * elem_size_words
,
2888 base_offset
, start
[i
] * elem_size_bytes
, align
);
2893 unsigned calculate_lds_alignment(isel_context
*ctx
, unsigned const_offset
)
2895 unsigned align
= 16;
2897 align
= std::min(align
, 1u << (ffs(const_offset
) - 1));
2903 Temp
create_vec_from_array(isel_context
*ctx
, Temp arr
[], unsigned cnt
, RegType reg_type
, unsigned elem_size_bytes
,
2904 unsigned split_cnt
= 0u, Temp dst
= Temp())
2906 Builder
bld(ctx
->program
, ctx
->block
);
2907 unsigned dword_size
= elem_size_bytes
/ 4;
2910 dst
= bld
.tmp(RegClass(reg_type
, cnt
* dword_size
));
2912 std::array
<Temp
, NIR_MAX_VEC_COMPONENTS
> allocated_vec
;
2913 aco_ptr
<Pseudo_instruction
> instr
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, cnt
, 1)};
2914 instr
->definitions
[0] = Definition(dst
);
2916 for (unsigned i
= 0; i
< cnt
; ++i
) {
2918 assert(arr
[i
].size() == dword_size
);
2919 allocated_vec
[i
] = arr
[i
];
2920 instr
->operands
[i
] = Operand(arr
[i
]);
2922 Temp zero
= bld
.copy(bld
.def(RegClass(reg_type
, dword_size
)), Operand(0u, dword_size
== 2));
2923 allocated_vec
[i
] = zero
;
2924 instr
->operands
[i
] = Operand(zero
);
2928 bld
.insert(std::move(instr
));
2931 emit_split_vector(ctx
, dst
, split_cnt
);
2933 ctx
->allocated_vec
.emplace(dst
.id(), allocated_vec
); /* emit_split_vector already does this */
2938 inline unsigned resolve_excess_vmem_const_offset(Builder
&bld
, Temp
&voffset
, unsigned const_offset
)
2940 if (const_offset
>= 4096) {
2941 unsigned excess_const_offset
= const_offset
/ 4096u * 4096u;
2942 const_offset
%= 4096u;
2945 voffset
= bld
.copy(bld
.def(v1
), Operand(excess_const_offset
));
2946 else if (unlikely(voffset
.regClass() == s1
))
2947 voffset
= bld
.sop2(aco_opcode::s_add_u32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(excess_const_offset
), Operand(voffset
));
2948 else if (likely(voffset
.regClass() == v1
))
2949 voffset
= bld
.vadd32(bld
.def(v1
), Operand(voffset
), Operand(excess_const_offset
));
2951 unreachable("Unsupported register class of voffset");
2954 return const_offset
;
2957 void emit_single_mubuf_store(isel_context
*ctx
, Temp descriptor
, Temp voffset
, Temp soffset
, Temp vdata
,
2958 unsigned const_offset
= 0u, bool allow_reorder
= true, bool slc
= false)
2961 assert(vdata
.size() != 3 || ctx
->program
->chip_class
!= GFX6
);
2962 assert(vdata
.size() >= 1 && vdata
.size() <= 4);
2964 Builder
bld(ctx
->program
, ctx
->block
);
2965 aco_opcode op
= (aco_opcode
) ((unsigned) aco_opcode::buffer_store_dword
+ vdata
.size() - 1);
2966 const_offset
= resolve_excess_vmem_const_offset(bld
, voffset
, const_offset
);
2968 Operand voffset_op
= voffset
.id() ? Operand(as_vgpr(ctx
, voffset
)) : Operand(v1
);
2969 Operand soffset_op
= soffset
.id() ? Operand(soffset
) : Operand(0u);
2970 Builder::Result r
= bld
.mubuf(op
, Operand(descriptor
), voffset_op
, soffset_op
, Operand(vdata
), const_offset
,
2971 /* offen */ !voffset_op
.isUndefined(), /* idxen*/ false, /* addr64 */ false,
2972 /* disable_wqm */ false, /* glc */ true, /* dlc*/ false, /* slc */ slc
);
2974 static_cast<MUBUF_instruction
*>(r
.instr
)->can_reorder
= allow_reorder
;
2977 void store_vmem_mubuf(isel_context
*ctx
, Temp src
, Temp descriptor
, Temp voffset
, Temp soffset
,
2978 unsigned base_const_offset
, unsigned elem_size_bytes
, unsigned write_mask
,
2979 bool allow_combining
= true, bool reorder
= true, bool slc
= false)
2981 Builder
bld(ctx
->program
, ctx
->block
);
2982 assert(elem_size_bytes
== 4 || elem_size_bytes
== 8);
2985 if (elem_size_bytes
== 8) {
2986 elem_size_bytes
= 4;
2987 write_mask
= widen_mask(write_mask
, 2);
2990 while (write_mask
) {
2993 u_bit_scan_consecutive_range(&write_mask
, &start
, &count
);
2998 unsigned sub_count
= allow_combining
? MIN2(count
, 4) : 1;
2999 unsigned const_offset
= (unsigned) start
* elem_size_bytes
+ base_const_offset
;
3001 /* GFX6 doesn't have buffer_store_dwordx3, so make sure not to emit that here either. */
3002 if (unlikely(ctx
->program
->chip_class
== GFX6
&& sub_count
== 3))
3005 Temp elem
= extract_subvector(ctx
, src
, start
, sub_count
, RegType::vgpr
);
3006 emit_single_mubuf_store(ctx
, descriptor
, voffset
, soffset
, elem
, const_offset
, reorder
, slc
);
3016 Temp
emit_single_mubuf_load(isel_context
*ctx
, Temp descriptor
, Temp voffset
, Temp soffset
,
3017 unsigned const_offset
, unsigned size_dwords
, bool allow_reorder
= true)
3019 assert(size_dwords
!= 3 || ctx
->program
->chip_class
!= GFX6
);
3020 assert(size_dwords
>= 1 && size_dwords
<= 4);
3022 Builder
bld(ctx
->program
, ctx
->block
);
3023 Temp vdata
= bld
.tmp(RegClass(RegType::vgpr
, size_dwords
));
3024 aco_opcode op
= (aco_opcode
) ((unsigned) aco_opcode::buffer_load_dword
+ size_dwords
- 1);
3025 const_offset
= resolve_excess_vmem_const_offset(bld
, voffset
, const_offset
);
3027 Operand voffset_op
= voffset
.id() ? Operand(as_vgpr(ctx
, voffset
)) : Operand(v1
);
3028 Operand soffset_op
= soffset
.id() ? Operand(soffset
) : Operand(0u);
3029 Builder::Result r
= bld
.mubuf(op
, Definition(vdata
), Operand(descriptor
), voffset_op
, soffset_op
, const_offset
,
3030 /* offen */ !voffset_op
.isUndefined(), /* idxen*/ false, /* addr64 */ false,
3031 /* disable_wqm */ false, /* glc */ true,
3032 /* dlc*/ ctx
->program
->chip_class
>= GFX10
, /* slc */ false);
3034 static_cast<MUBUF_instruction
*>(r
.instr
)->can_reorder
= allow_reorder
;
3039 void load_vmem_mubuf(isel_context
*ctx
, Temp dst
, Temp descriptor
, Temp voffset
, Temp soffset
,
3040 unsigned base_const_offset
, unsigned elem_size_bytes
, unsigned num_components
,
3041 unsigned stride
= 0u, bool allow_combining
= true, bool allow_reorder
= true)
3043 assert(elem_size_bytes
== 4 || elem_size_bytes
== 8);
3044 assert((num_components
* elem_size_bytes
/ 4) == dst
.size());
3045 assert(!!stride
!= allow_combining
);
3047 Builder
bld(ctx
->program
, ctx
->block
);
3048 unsigned split_cnt
= num_components
;
3050 if (elem_size_bytes
== 8) {
3051 elem_size_bytes
= 4;
3052 num_components
*= 2;
3056 stride
= elem_size_bytes
;
3058 unsigned load_size
= 1;
3059 if (allow_combining
) {
3060 if ((num_components
% 4) == 0)
3062 else if ((num_components
% 3) == 0 && ctx
->program
->chip_class
!= GFX6
)
3064 else if ((num_components
% 2) == 0)
3068 unsigned num_loads
= num_components
/ load_size
;
3069 std::array
<Temp
, NIR_MAX_VEC_COMPONENTS
> elems
;
3071 for (unsigned i
= 0; i
< num_loads
; ++i
) {
3072 unsigned const_offset
= i
* stride
* load_size
+ base_const_offset
;
3073 elems
[i
] = emit_single_mubuf_load(ctx
, descriptor
, voffset
, soffset
, const_offset
, load_size
, allow_reorder
);
3076 create_vec_from_array(ctx
, elems
.data(), num_loads
, RegType::vgpr
, load_size
* 4u, split_cnt
, dst
);
3079 std::pair
<Temp
, unsigned> offset_add_from_nir(isel_context
*ctx
, const std::pair
<Temp
, unsigned> &base_offset
, nir_src
*off_src
, unsigned stride
= 1u)
3081 Builder
bld(ctx
->program
, ctx
->block
);
3082 Temp offset
= base_offset
.first
;
3083 unsigned const_offset
= base_offset
.second
;
3085 if (!nir_src_is_const(*off_src
)) {
3086 Temp indirect_offset_arg
= get_ssa_temp(ctx
, off_src
->ssa
);
3089 /* Calculate indirect offset with stride */
3090 if (likely(indirect_offset_arg
.regClass() == v1
))
3091 with_stride
= bld
.v_mul_imm(bld
.def(v1
), indirect_offset_arg
, stride
);
3092 else if (indirect_offset_arg
.regClass() == s1
)
3093 with_stride
= bld
.sop2(aco_opcode::s_mul_i32
, bld
.def(s1
), Operand(stride
), indirect_offset_arg
);
3095 unreachable("Unsupported register class of indirect offset");
3097 /* Add to the supplied base offset */
3098 if (offset
.id() == 0)
3099 offset
= with_stride
;
3100 else if (unlikely(offset
.regClass() == s1
&& with_stride
.regClass() == s1
))
3101 offset
= bld
.sop2(aco_opcode::s_add_u32
, bld
.def(s1
), bld
.def(s1
, scc
), with_stride
, offset
);
3102 else if (offset
.size() == 1 && with_stride
.size() == 1)
3103 offset
= bld
.vadd32(bld
.def(v1
), with_stride
, offset
);
3105 unreachable("Unsupported register class of indirect offset");
3107 unsigned const_offset_arg
= nir_src_as_uint(*off_src
);
3108 const_offset
+= const_offset_arg
* stride
;
3111 return std::make_pair(offset
, const_offset
);
3114 std::pair
<Temp
, unsigned> offset_add(isel_context
*ctx
, const std::pair
<Temp
, unsigned> &off1
, const std::pair
<Temp
, unsigned> &off2
)
3116 Builder
bld(ctx
->program
, ctx
->block
);
3119 if (off1
.first
.id() && off2
.first
.id()) {
3120 if (unlikely(off1
.first
.regClass() == s1
&& off2
.first
.regClass() == s1
))
3121 offset
= bld
.sop2(aco_opcode::s_add_u32
, bld
.def(s1
), bld
.def(s1
, scc
), off1
.first
, off2
.first
);
3122 else if (off1
.first
.size() == 1 && off2
.first
.size() == 1)
3123 offset
= bld
.vadd32(bld
.def(v1
), off1
.first
, off2
.first
);
3125 unreachable("Unsupported register class of indirect offset");
3127 offset
= off1
.first
.id() ? off1
.first
: off2
.first
;
3130 return std::make_pair(offset
, off1
.second
+ off2
.second
);
3133 std::pair
<Temp
, unsigned> offset_mul(isel_context
*ctx
, const std::pair
<Temp
, unsigned> &offs
, unsigned multiplier
)
3135 Builder
bld(ctx
->program
, ctx
->block
);
3136 unsigned const_offset
= offs
.second
* multiplier
;
3138 if (!offs
.first
.id())
3139 return std::make_pair(offs
.first
, const_offset
);
3141 Temp offset
= unlikely(offs
.first
.regClass() == s1
)
3142 ? bld
.sop2(aco_opcode::s_mul_i32
, bld
.def(s1
), Operand(multiplier
), offs
.first
)
3143 : bld
.v_mul_imm(bld
.def(v1
), offs
.first
, multiplier
);
3145 return std::make_pair(offset
, const_offset
);
3148 std::pair
<Temp
, unsigned> get_intrinsic_io_basic_offset(isel_context
*ctx
, nir_intrinsic_instr
*instr
, unsigned base_stride
, unsigned component_stride
)
3150 Builder
bld(ctx
->program
, ctx
->block
);
3152 /* base is the driver_location, which is already multiplied by 4, so is in dwords */
3153 unsigned const_offset
= nir_intrinsic_base(instr
) * base_stride
;
3154 /* component is in bytes */
3155 const_offset
+= nir_intrinsic_component(instr
) * component_stride
;
3157 /* offset should be interpreted in relation to the base, so the instruction effectively reads/writes another input/output when it has an offset */
3158 nir_src
*off_src
= nir_get_io_offset_src(instr
);
3159 return offset_add_from_nir(ctx
, std::make_pair(Temp(), const_offset
), off_src
, 4u * base_stride
);
3162 std::pair
<Temp
, unsigned> get_intrinsic_io_basic_offset(isel_context
*ctx
, nir_intrinsic_instr
*instr
, unsigned stride
= 1u)
3164 return get_intrinsic_io_basic_offset(ctx
, instr
, stride
, stride
);
3167 Temp
get_tess_rel_patch_id(isel_context
*ctx
)
3169 Builder
bld(ctx
->program
, ctx
->block
);
3171 switch (ctx
->shader
->info
.stage
) {
3172 case MESA_SHADER_TESS_CTRL
:
3173 return bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(0xffu
),
3174 get_arg(ctx
, ctx
->args
->ac
.tcs_rel_ids
));
3175 case MESA_SHADER_TESS_EVAL
:
3176 return get_arg(ctx
, ctx
->args
->tes_rel_patch_id
);
3178 unreachable("Unsupported stage in get_tess_rel_patch_id");
3182 std::pair
<Temp
, unsigned> get_tcs_per_vertex_input_lds_offset(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
3184 assert(ctx
->shader
->info
.stage
== MESA_SHADER_TESS_CTRL
);
3185 Builder
bld(ctx
->program
, ctx
->block
);
3187 uint32_t tcs_in_patch_stride
= ctx
->args
->options
->key
.tcs
.input_vertices
* ctx
->tcs_num_inputs
* 4;
3188 uint32_t tcs_in_vertex_stride
= ctx
->tcs_num_inputs
* 4;
3190 std::pair
<Temp
, unsigned> offs
= get_intrinsic_io_basic_offset(ctx
, instr
);
3192 nir_src
*vertex_index_src
= nir_get_io_vertex_index_src(instr
);
3193 offs
= offset_add_from_nir(ctx
, offs
, vertex_index_src
, tcs_in_vertex_stride
);
3195 Temp rel_patch_id
= get_tess_rel_patch_id(ctx
);
3196 Temp tcs_in_current_patch_offset
= bld
.v_mul24_imm(bld
.def(v1
), rel_patch_id
, tcs_in_patch_stride
);
3197 offs
= offset_add(ctx
, offs
, std::make_pair(tcs_in_current_patch_offset
, 0));
3199 return offset_mul(ctx
, offs
, 4u);
3202 std::pair
<Temp
, unsigned> get_tcs_output_lds_offset(isel_context
*ctx
, nir_intrinsic_instr
*instr
= nullptr, bool per_vertex
= false)
3204 assert(ctx
->shader
->info
.stage
== MESA_SHADER_TESS_CTRL
);
3205 Builder
bld(ctx
->program
, ctx
->block
);
3207 uint32_t input_patch_size
= ctx
->args
->options
->key
.tcs
.input_vertices
* ctx
->tcs_num_inputs
* 16;
3208 uint32_t num_tcs_outputs
= util_last_bit64(ctx
->args
->shader_info
->tcs
.outputs_written
);
3209 uint32_t num_tcs_patch_outputs
= util_last_bit64(ctx
->args
->shader_info
->tcs
.patch_outputs_written
);
3210 uint32_t output_vertex_size
= num_tcs_outputs
* 16;
3211 uint32_t pervertex_output_patch_size
= ctx
->shader
->info
.tess
.tcs_vertices_out
* output_vertex_size
;
3212 uint32_t output_patch_stride
= pervertex_output_patch_size
+ num_tcs_patch_outputs
* 16;
3214 std::pair
<Temp
, unsigned> offs
= instr
3215 ? get_intrinsic_io_basic_offset(ctx
, instr
, 4u)
3216 : std::make_pair(Temp(), 0u);
3218 Temp rel_patch_id
= get_tess_rel_patch_id(ctx
);
3219 Temp patch_off
= bld
.v_mul24_imm(bld
.def(v1
), rel_patch_id
, output_patch_stride
);
3224 nir_src
*vertex_index_src
= nir_get_io_vertex_index_src(instr
);
3225 offs
= offset_add_from_nir(ctx
, offs
, vertex_index_src
, output_vertex_size
);
3227 uint32_t output_patch0_offset
= (input_patch_size
* ctx
->tcs_num_patches
);
3228 offs
= offset_add(ctx
, offs
, std::make_pair(patch_off
, output_patch0_offset
));
3230 uint32_t output_patch0_patch_data_offset
= (input_patch_size
* ctx
->tcs_num_patches
+ pervertex_output_patch_size
);
3231 offs
= offset_add(ctx
, offs
, std::make_pair(patch_off
, output_patch0_patch_data_offset
));
3237 std::pair
<Temp
, unsigned> get_tcs_per_vertex_output_vmem_offset(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
3239 Builder
bld(ctx
->program
, ctx
->block
);
3241 unsigned vertices_per_patch
= ctx
->shader
->info
.tess
.tcs_vertices_out
;
3242 unsigned attr_stride
= vertices_per_patch
* ctx
->tcs_num_patches
;
3244 std::pair
<Temp
, unsigned> offs
= get_intrinsic_io_basic_offset(ctx
, instr
, attr_stride
* 4u, 4u);
3246 Temp rel_patch_id
= get_tess_rel_patch_id(ctx
);
3247 Temp patch_off
= bld
.v_mul24_imm(bld
.def(v1
), rel_patch_id
, vertices_per_patch
* 16u);
3248 offs
= offset_add(ctx
, offs
, std::make_pair(patch_off
, 0u));
3250 nir_src
*vertex_index_src
= nir_get_io_vertex_index_src(instr
);
3251 offs
= offset_add_from_nir(ctx
, offs
, vertex_index_src
, 16u);
3256 std::pair
<Temp
, unsigned> get_tcs_per_patch_output_vmem_offset(isel_context
*ctx
, nir_intrinsic_instr
*instr
= nullptr, unsigned const_base_offset
= 0u)
3258 Builder
bld(ctx
->program
, ctx
->block
);
3260 unsigned num_tcs_outputs
= ctx
->shader
->info
.stage
== MESA_SHADER_TESS_CTRL
3261 ? util_last_bit64(ctx
->args
->shader_info
->tcs
.outputs_written
)
3262 : ctx
->args
->options
->key
.tes
.tcs_num_outputs
;
3264 unsigned output_vertex_size
= num_tcs_outputs
* 16;
3265 unsigned per_vertex_output_patch_size
= ctx
->shader
->info
.tess
.tcs_vertices_out
* output_vertex_size
;
3266 unsigned per_patch_data_offset
= per_vertex_output_patch_size
* ctx
->tcs_num_patches
;
3267 unsigned attr_stride
= ctx
->tcs_num_patches
;
3269 std::pair
<Temp
, unsigned> offs
= instr
3270 ? get_intrinsic_io_basic_offset(ctx
, instr
, attr_stride
* 4u, 4u)
3271 : std::make_pair(Temp(), 0u);
3273 if (const_base_offset
)
3274 offs
.second
+= const_base_offset
* attr_stride
;
3276 Temp rel_patch_id
= get_tess_rel_patch_id(ctx
);
3277 Temp patch_off
= bld
.v_mul_imm(bld
.def(v1
), rel_patch_id
, 16u);
3278 offs
= offset_add(ctx
, offs
, std::make_pair(patch_off
, per_patch_data_offset
));
3283 bool tcs_driver_location_matches_api_mask(isel_context
*ctx
, nir_intrinsic_instr
*instr
, bool per_vertex
, uint64_t mask
, bool *indirect
)
3285 unsigned off
= nir_intrinsic_base(instr
) * 4u;
3286 nir_src
*off_src
= nir_get_io_offset_src(instr
);
3288 if (!nir_src_is_const(*off_src
)) {
3294 off
+= nir_src_as_uint(*off_src
) * 16u;
3297 unsigned slot
= u_bit_scan64(&mask
) + (per_vertex
? 0 : VARYING_SLOT_PATCH0
);
3298 if (off
== shader_io_get_unique_index((gl_varying_slot
) slot
) * 16u)
3305 bool store_output_to_temps(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
3307 unsigned write_mask
= nir_intrinsic_write_mask(instr
);
3308 unsigned component
= nir_intrinsic_component(instr
);
3309 unsigned idx
= nir_intrinsic_base(instr
) + component
;
3311 nir_instr
*off_instr
= instr
->src
[1].ssa
->parent_instr
;
3312 if (off_instr
->type
!= nir_instr_type_load_const
)
3315 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
3316 idx
+= nir_src_as_uint(instr
->src
[1]) * 4u;
3318 if (instr
->src
[0].ssa
->bit_size
== 64)
3319 write_mask
= widen_mask(write_mask
, 2);
3321 for (unsigned i
= 0; i
< 8; ++i
) {
3322 if (write_mask
& (1 << i
)) {
3323 ctx
->outputs
.mask
[idx
/ 4u] |= 1 << (idx
% 4u);
3324 ctx
->outputs
.temps
[idx
] = emit_extract_vector(ctx
, src
, i
, v1
);
3332 bool load_input_from_temps(isel_context
*ctx
, nir_intrinsic_instr
*instr
, Temp dst
)
3334 /* Only TCS per-vertex inputs are supported by this function.
3335 * Per-vertex inputs only match between the VS/TCS invocation id when the number of invocations is the same.
3337 if (ctx
->shader
->info
.stage
!= MESA_SHADER_TESS_CTRL
|| !ctx
->tcs_in_out_eq
)
3340 nir_src
*off_src
= nir_get_io_offset_src(instr
);
3341 nir_src
*vertex_index_src
= nir_get_io_vertex_index_src(instr
);
3342 nir_instr
*vertex_index_instr
= vertex_index_src
->ssa
->parent_instr
;
3343 bool can_use_temps
= nir_src_is_const(*off_src
) &&
3344 vertex_index_instr
->type
== nir_instr_type_intrinsic
&&
3345 nir_instr_as_intrinsic(vertex_index_instr
)->intrinsic
== nir_intrinsic_load_invocation_id
;
3350 unsigned idx
= nir_intrinsic_base(instr
) + nir_intrinsic_component(instr
) + 4 * nir_src_as_uint(*off_src
);
3351 Temp
*src
= &ctx
->inputs
.temps
[idx
];
3352 Temp vec
= create_vec_from_array(ctx
, src
, dst
.size(), dst
.regClass().type(), 4u);
3353 assert(vec
.size() == dst
.size());
3355 Builder
bld(ctx
->program
, ctx
->block
);
3356 bld
.copy(Definition(dst
), vec
);
3360 void visit_store_ls_or_es_output(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
3362 Builder
bld(ctx
->program
, ctx
->block
);
3364 std::pair
<Temp
, unsigned> offs
= get_intrinsic_io_basic_offset(ctx
, instr
, 4u);
3365 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
3366 unsigned write_mask
= nir_intrinsic_write_mask(instr
);
3367 unsigned elem_size_bytes
= instr
->src
[0].ssa
->bit_size
/ 8u;
3369 if (ctx
->tcs_in_out_eq
)
3370 store_output_to_temps(ctx
, instr
);
3372 if (ctx
->stage
== vertex_es
|| ctx
->stage
== tess_eval_es
) {
3373 /* GFX6-8: ES stage is not merged into GS, data is passed from ES to GS in VMEM. */
3374 Temp esgs_ring
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), ctx
->program
->private_segment_buffer
, Operand(RING_ESGS_VS
* 16u));
3375 Temp es2gs_offset
= get_arg(ctx
, ctx
->args
->es2gs_offset
);
3376 store_vmem_mubuf(ctx
, src
, esgs_ring
, offs
.first
, es2gs_offset
, offs
.second
, elem_size_bytes
, write_mask
, false, true, true);
3380 if (ctx
->stage
== vertex_geometry_gs
|| ctx
->stage
== tess_eval_geometry_gs
) {
3381 /* GFX9+: ES stage is merged into GS, data is passed between them using LDS. */
3382 unsigned itemsize
= ctx
->stage
== vertex_geometry_gs
3383 ? ctx
->program
->info
->vs
.es_info
.esgs_itemsize
3384 : ctx
->program
->info
->tes
.es_info
.esgs_itemsize
;
3385 Temp thread_id
= emit_mbcnt(ctx
, bld
.def(v1
));
3386 Temp wave_idx
= bld
.sop2(aco_opcode::s_bfe_u32
, bld
.def(s1
), bld
.def(s1
, scc
), get_arg(ctx
, ctx
->args
->merged_wave_info
), Operand(4u << 16 | 24));
3387 Temp vertex_idx
= bld
.vop2(aco_opcode::v_or_b32
, bld
.def(v1
), thread_id
,
3388 bld
.v_mul24_imm(bld
.def(v1
), as_vgpr(ctx
, wave_idx
), ctx
->program
->wave_size
));
3389 lds_base
= bld
.v_mul24_imm(bld
.def(v1
), vertex_idx
, itemsize
);
3390 } else if (ctx
->stage
== vertex_ls
|| ctx
->stage
== vertex_tess_control_hs
) {
3391 /* GFX6-8: VS runs on LS stage when tessellation is used, but LS shares LDS space with HS.
3392 * GFX9+: LS is merged into HS, but still uses the same LDS layout.
3394 unsigned num_tcs_inputs
= util_last_bit64(ctx
->args
->shader_info
->vs
.ls_outputs_written
);
3395 Temp vertex_idx
= get_arg(ctx
, ctx
->args
->rel_auto_id
);
3396 lds_base
= bld
.v_mul_imm(bld
.def(v1
), vertex_idx
, num_tcs_inputs
* 16u);
3398 unreachable("Invalid LS or ES stage");
3401 offs
= offset_add(ctx
, offs
, std::make_pair(lds_base
, 0u));
3402 unsigned lds_align
= calculate_lds_alignment(ctx
, offs
.second
);
3403 store_lds(ctx
, elem_size_bytes
, src
, write_mask
, offs
.first
, offs
.second
, lds_align
);
3407 bool should_write_tcs_patch_output_to_vmem(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
3409 unsigned off
= nir_intrinsic_base(instr
) * 4u;
3410 return off
!= ctx
->tcs_tess_lvl_out_loc
&&
3411 off
!= ctx
->tcs_tess_lvl_in_loc
;
3414 bool should_write_tcs_output_to_lds(isel_context
*ctx
, nir_intrinsic_instr
*instr
, bool per_vertex
)
3416 /* When none of the appropriate outputs are read, we are OK to never write to LDS */
3417 if (per_vertex
? ctx
->shader
->info
.outputs_read
== 0U : ctx
->shader
->info
.patch_outputs_read
== 0u)
3420 uint64_t mask
= per_vertex
3421 ? ctx
->shader
->info
.outputs_read
3422 : ctx
->shader
->info
.patch_outputs_read
;
3423 bool indirect_write
;
3424 bool output_read
= tcs_driver_location_matches_api_mask(ctx
, instr
, per_vertex
, mask
, &indirect_write
);
3425 return indirect_write
|| output_read
;
3428 void visit_store_tcs_output(isel_context
*ctx
, nir_intrinsic_instr
*instr
, bool per_vertex
)
3430 assert(ctx
->stage
== tess_control_hs
|| ctx
->stage
== vertex_tess_control_hs
);
3431 assert(ctx
->shader
->info
.stage
== MESA_SHADER_TESS_CTRL
);
3433 Builder
bld(ctx
->program
, ctx
->block
);
3435 Temp store_val
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
3436 unsigned elem_size_bytes
= instr
->src
[0].ssa
->bit_size
/ 8;
3437 unsigned write_mask
= nir_intrinsic_write_mask(instr
);
3439 /* Only write to VMEM if the output is per-vertex or it's per-patch non tess factor */
3440 bool write_to_vmem
= per_vertex
|| should_write_tcs_patch_output_to_vmem(ctx
, instr
);
3441 /* Only write to LDS if the output is read by the shader, or it's per-patch tess factor */
3442 bool write_to_lds
= !write_to_vmem
|| should_write_tcs_output_to_lds(ctx
, instr
, per_vertex
);
3444 if (write_to_vmem
) {
3445 std::pair
<Temp
, unsigned> vmem_offs
= per_vertex
3446 ? get_tcs_per_vertex_output_vmem_offset(ctx
, instr
)
3447 : get_tcs_per_patch_output_vmem_offset(ctx
, instr
);
3449 Temp hs_ring_tess_offchip
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), ctx
->program
->private_segment_buffer
, Operand(RING_HS_TESS_OFFCHIP
* 16u));
3450 Temp oc_lds
= get_arg(ctx
, ctx
->args
->oc_lds
);
3451 store_vmem_mubuf(ctx
, store_val
, hs_ring_tess_offchip
, vmem_offs
.first
, oc_lds
, vmem_offs
.second
, elem_size_bytes
, write_mask
, true, false);
3455 std::pair
<Temp
, unsigned> lds_offs
= get_tcs_output_lds_offset(ctx
, instr
, per_vertex
);
3456 unsigned lds_align
= calculate_lds_alignment(ctx
, lds_offs
.second
);
3457 store_lds(ctx
, elem_size_bytes
, store_val
, write_mask
, lds_offs
.first
, lds_offs
.second
, lds_align
);
3461 void visit_load_tcs_output(isel_context
*ctx
, nir_intrinsic_instr
*instr
, bool per_vertex
)
3463 assert(ctx
->stage
== tess_control_hs
|| ctx
->stage
== vertex_tess_control_hs
);
3464 assert(ctx
->shader
->info
.stage
== MESA_SHADER_TESS_CTRL
);
3466 Builder
bld(ctx
->program
, ctx
->block
);
3468 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
3469 std::pair
<Temp
, unsigned> lds_offs
= get_tcs_output_lds_offset(ctx
, instr
, per_vertex
);
3470 unsigned lds_align
= calculate_lds_alignment(ctx
, lds_offs
.second
);
3471 unsigned elem_size_bytes
= instr
->src
[0].ssa
->bit_size
/ 8;
3473 load_lds(ctx
, elem_size_bytes
, dst
, lds_offs
.first
, lds_offs
.second
, lds_align
);
3476 void visit_store_output(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
3478 if (ctx
->stage
== vertex_vs
||
3479 ctx
->stage
== tess_eval_vs
||
3480 ctx
->stage
== fragment_fs
||
3481 ctx
->shader
->info
.stage
== MESA_SHADER_GEOMETRY
) {
3482 bool stored_to_temps
= store_output_to_temps(ctx
, instr
);
3483 if (!stored_to_temps
) {
3484 fprintf(stderr
, "Unimplemented output offset instruction:\n");
3485 nir_print_instr(instr
->src
[1].ssa
->parent_instr
, stderr
);
3486 fprintf(stderr
, "\n");
3489 } else if (ctx
->stage
== vertex_es
||
3490 ctx
->stage
== vertex_ls
||
3491 ctx
->stage
== tess_eval_es
||
3492 (ctx
->stage
== vertex_tess_control_hs
&& ctx
->shader
->info
.stage
== MESA_SHADER_VERTEX
) ||
3493 (ctx
->stage
== vertex_geometry_gs
&& ctx
->shader
->info
.stage
== MESA_SHADER_VERTEX
) ||
3494 (ctx
->stage
== tess_eval_geometry_gs
&& ctx
->shader
->info
.stage
== MESA_SHADER_TESS_EVAL
)) {
3495 visit_store_ls_or_es_output(ctx
, instr
);
3496 } else if (ctx
->shader
->info
.stage
== MESA_SHADER_TESS_CTRL
) {
3497 visit_store_tcs_output(ctx
, instr
, false);
3499 unreachable("Shader stage not implemented");
3503 void visit_load_output(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
3505 visit_load_tcs_output(ctx
, instr
, false);
3508 void emit_interp_instr(isel_context
*ctx
, unsigned idx
, unsigned component
, Temp src
, Temp dst
, Temp prim_mask
)
3510 Temp coord1
= emit_extract_vector(ctx
, src
, 0, v1
);
3511 Temp coord2
= emit_extract_vector(ctx
, src
, 1, v1
);
3513 Builder
bld(ctx
->program
, ctx
->block
);
3514 Builder::Result interp_p1
= bld
.vintrp(aco_opcode::v_interp_p1_f32
, bld
.def(v1
), coord1
, bld
.m0(prim_mask
), idx
, component
);
3515 if (ctx
->program
->has_16bank_lds
)
3516 interp_p1
.instr
->operands
[0].setLateKill(true);
3517 bld
.vintrp(aco_opcode::v_interp_p2_f32
, Definition(dst
), coord2
, bld
.m0(prim_mask
), interp_p1
, idx
, component
);
3520 void emit_load_frag_coord(isel_context
*ctx
, Temp dst
, unsigned num_components
)
3522 aco_ptr
<Pseudo_instruction
> vec(create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, num_components
, 1));
3523 for (unsigned i
= 0; i
< num_components
; i
++)
3524 vec
->operands
[i
] = Operand(get_arg(ctx
, ctx
->args
->ac
.frag_pos
[i
]));
3525 if (G_0286CC_POS_W_FLOAT_ENA(ctx
->program
->config
->spi_ps_input_ena
)) {
3526 assert(num_components
== 4);
3527 Builder
bld(ctx
->program
, ctx
->block
);
3528 vec
->operands
[3] = bld
.vop1(aco_opcode::v_rcp_f32
, bld
.def(v1
), get_arg(ctx
, ctx
->args
->ac
.frag_pos
[3]));
3531 for (Operand
& op
: vec
->operands
)
3532 op
= op
.isUndefined() ? Operand(0u) : op
;
3534 vec
->definitions
[0] = Definition(dst
);
3535 ctx
->block
->instructions
.emplace_back(std::move(vec
));
3536 emit_split_vector(ctx
, dst
, num_components
);
3540 void visit_load_interpolated_input(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
3542 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
3543 Temp coords
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
3544 unsigned idx
= nir_intrinsic_base(instr
);
3545 unsigned component
= nir_intrinsic_component(instr
);
3546 Temp prim_mask
= get_arg(ctx
, ctx
->args
->ac
.prim_mask
);
3548 nir_const_value
* offset
= nir_src_as_const_value(instr
->src
[1]);
3550 assert(offset
->u32
== 0);
3552 /* the lower 15bit of the prim_mask contain the offset into LDS
3553 * while the upper bits contain the number of prims */
3554 Temp offset_src
= get_ssa_temp(ctx
, instr
->src
[1].ssa
);
3555 assert(offset_src
.regClass() == s1
&& "TODO: divergent offsets...");
3556 Builder
bld(ctx
->program
, ctx
->block
);
3557 Temp stride
= bld
.sop2(aco_opcode::s_lshr_b32
, bld
.def(s1
), bld
.def(s1
, scc
), prim_mask
, Operand(16u));
3558 stride
= bld
.sop1(aco_opcode::s_bcnt1_i32_b32
, bld
.def(s1
), bld
.def(s1
, scc
), stride
);
3559 stride
= bld
.sop2(aco_opcode::s_mul_i32
, bld
.def(s1
), stride
, Operand(48u));
3560 offset_src
= bld
.sop2(aco_opcode::s_mul_i32
, bld
.def(s1
), stride
, offset_src
);
3561 prim_mask
= bld
.sop2(aco_opcode::s_add_i32
, bld
.def(s1
, m0
), bld
.def(s1
, scc
), offset_src
, prim_mask
);
3564 if (instr
->dest
.ssa
.num_components
== 1) {
3565 emit_interp_instr(ctx
, idx
, component
, coords
, dst
, prim_mask
);
3567 aco_ptr
<Pseudo_instruction
> vec(create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, instr
->dest
.ssa
.num_components
, 1));
3568 for (unsigned i
= 0; i
< instr
->dest
.ssa
.num_components
; i
++)
3570 Temp tmp
= {ctx
->program
->allocateId(), v1
};
3571 emit_interp_instr(ctx
, idx
, component
+i
, coords
, tmp
, prim_mask
);
3572 vec
->operands
[i
] = Operand(tmp
);
3574 vec
->definitions
[0] = Definition(dst
);
3575 ctx
->block
->instructions
.emplace_back(std::move(vec
));
3579 bool check_vertex_fetch_size(isel_context
*ctx
, const ac_data_format_info
*vtx_info
,
3580 unsigned offset
, unsigned stride
, unsigned channels
)
3582 unsigned vertex_byte_size
= vtx_info
->chan_byte_size
* channels
;
3583 if (vtx_info
->chan_byte_size
!= 4 && channels
== 3)
3585 return (ctx
->options
->chip_class
!= GFX6
&& ctx
->options
->chip_class
!= GFX10
) ||
3586 (offset
% vertex_byte_size
== 0 && stride
% vertex_byte_size
== 0);
3589 uint8_t get_fetch_data_format(isel_context
*ctx
, const ac_data_format_info
*vtx_info
,
3590 unsigned offset
, unsigned stride
, unsigned *channels
)
3592 if (!vtx_info
->chan_byte_size
) {
3593 *channels
= vtx_info
->num_channels
;
3594 return vtx_info
->chan_format
;
3597 unsigned num_channels
= *channels
;
3598 if (!check_vertex_fetch_size(ctx
, vtx_info
, offset
, stride
, *channels
)) {
3599 unsigned new_channels
= num_channels
+ 1;
3600 /* first, assume more loads is worse and try using a larger data format */
3601 while (new_channels
<= 4 && !check_vertex_fetch_size(ctx
, vtx_info
, offset
, stride
, new_channels
)) {
3603 /* don't make the attribute potentially out-of-bounds */
3604 if (offset
+ new_channels
* vtx_info
->chan_byte_size
> stride
)
3608 if (new_channels
== 5) {
3609 /* then try decreasing load size (at the cost of more loads) */
3610 new_channels
= *channels
;
3611 while (new_channels
> 1 && !check_vertex_fetch_size(ctx
, vtx_info
, offset
, stride
, new_channels
))
3615 if (new_channels
< *channels
)
3616 *channels
= new_channels
;
3617 num_channels
= new_channels
;
3620 switch (vtx_info
->chan_format
) {
3621 case V_008F0C_BUF_DATA_FORMAT_8
:
3622 return (uint8_t[]){V_008F0C_BUF_DATA_FORMAT_8
, V_008F0C_BUF_DATA_FORMAT_8_8
,
3623 V_008F0C_BUF_DATA_FORMAT_INVALID
, V_008F0C_BUF_DATA_FORMAT_8_8_8_8
}[num_channels
- 1];
3624 case V_008F0C_BUF_DATA_FORMAT_16
:
3625 return (uint8_t[]){V_008F0C_BUF_DATA_FORMAT_16
, V_008F0C_BUF_DATA_FORMAT_16_16
,
3626 V_008F0C_BUF_DATA_FORMAT_INVALID
, V_008F0C_BUF_DATA_FORMAT_16_16_16_16
}[num_channels
- 1];
3627 case V_008F0C_BUF_DATA_FORMAT_32
:
3628 return (uint8_t[]){V_008F0C_BUF_DATA_FORMAT_32
, V_008F0C_BUF_DATA_FORMAT_32_32
,
3629 V_008F0C_BUF_DATA_FORMAT_32_32_32
, V_008F0C_BUF_DATA_FORMAT_32_32_32_32
}[num_channels
- 1];
3631 unreachable("shouldn't reach here");
3632 return V_008F0C_BUF_DATA_FORMAT_INVALID
;
3635 /* For 2_10_10_10 formats the alpha is handled as unsigned by pre-vega HW.
3636 * so we may need to fix it up. */
3637 Temp
adjust_vertex_fetch_alpha(isel_context
*ctx
, unsigned adjustment
, Temp alpha
)
3639 Builder
bld(ctx
->program
, ctx
->block
);
3641 if (adjustment
== RADV_ALPHA_ADJUST_SSCALED
)
3642 alpha
= bld
.vop1(aco_opcode::v_cvt_u32_f32
, bld
.def(v1
), alpha
);
3644 /* For the integer-like cases, do a natural sign extension.
3646 * For the SNORM case, the values are 0.0, 0.333, 0.666, 1.0
3647 * and happen to contain 0, 1, 2, 3 as the two LSBs of the
3650 alpha
= bld
.vop2(aco_opcode::v_lshlrev_b32
, bld
.def(v1
), Operand(adjustment
== RADV_ALPHA_ADJUST_SNORM
? 7u : 30u), alpha
);
3651 alpha
= bld
.vop2(aco_opcode::v_ashrrev_i32
, bld
.def(v1
), Operand(30u), alpha
);
3653 /* Convert back to the right type. */
3654 if (adjustment
== RADV_ALPHA_ADJUST_SNORM
) {
3655 alpha
= bld
.vop1(aco_opcode::v_cvt_f32_i32
, bld
.def(v1
), alpha
);
3656 Temp clamp
= bld
.vopc(aco_opcode::v_cmp_le_f32
, bld
.hint_vcc(bld
.def(bld
.lm
)), Operand(0xbf800000u
), alpha
);
3657 alpha
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), Operand(0xbf800000u
), alpha
, clamp
);
3658 } else if (adjustment
== RADV_ALPHA_ADJUST_SSCALED
) {
3659 alpha
= bld
.vop1(aco_opcode::v_cvt_f32_i32
, bld
.def(v1
), alpha
);
3665 void visit_load_input(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
3667 Builder
bld(ctx
->program
, ctx
->block
);
3668 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
3669 if (ctx
->shader
->info
.stage
== MESA_SHADER_VERTEX
) {
3671 nir_instr
*off_instr
= instr
->src
[0].ssa
->parent_instr
;
3672 if (off_instr
->type
!= nir_instr_type_load_const
) {
3673 fprintf(stderr
, "Unimplemented nir_intrinsic_load_input offset\n");
3674 nir_print_instr(off_instr
, stderr
);
3675 fprintf(stderr
, "\n");
3677 uint32_t offset
= nir_instr_as_load_const(off_instr
)->value
[0].u32
;
3679 Temp vertex_buffers
= convert_pointer_to_64_bit(ctx
, get_arg(ctx
, ctx
->args
->vertex_buffers
));
3681 unsigned location
= nir_intrinsic_base(instr
) / 4 - VERT_ATTRIB_GENERIC0
+ offset
;
3682 unsigned component
= nir_intrinsic_component(instr
);
3683 unsigned attrib_binding
= ctx
->options
->key
.vs
.vertex_attribute_bindings
[location
];
3684 uint32_t attrib_offset
= ctx
->options
->key
.vs
.vertex_attribute_offsets
[location
];
3685 uint32_t attrib_stride
= ctx
->options
->key
.vs
.vertex_attribute_strides
[location
];
3686 unsigned attrib_format
= ctx
->options
->key
.vs
.vertex_attribute_formats
[location
];
3688 unsigned dfmt
= attrib_format
& 0xf;
3689 unsigned nfmt
= (attrib_format
>> 4) & 0x7;
3690 const struct ac_data_format_info
*vtx_info
= ac_get_data_format_info(dfmt
);
3692 unsigned mask
= nir_ssa_def_components_read(&instr
->dest
.ssa
) << component
;
3693 unsigned num_channels
= MIN2(util_last_bit(mask
), vtx_info
->num_channels
);
3694 unsigned alpha_adjust
= (ctx
->options
->key
.vs
.alpha_adjust
>> (location
* 2)) & 3;
3695 bool post_shuffle
= ctx
->options
->key
.vs
.post_shuffle
& (1 << location
);
3697 num_channels
= MAX2(num_channels
, 3);
3699 Operand off
= bld
.copy(bld
.def(s1
), Operand(attrib_binding
* 16u));
3700 Temp list
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), vertex_buffers
, off
);
3703 if (ctx
->options
->key
.vs
.instance_rate_inputs
& (1u << location
)) {
3704 uint32_t divisor
= ctx
->options
->key
.vs
.instance_rate_divisors
[location
];
3705 Temp start_instance
= get_arg(ctx
, ctx
->args
->ac
.start_instance
);
3707 Temp instance_id
= get_arg(ctx
, ctx
->args
->ac
.instance_id
);
3709 Temp divided
= bld
.tmp(v1
);
3710 emit_v_div_u32(ctx
, divided
, as_vgpr(ctx
, instance_id
), divisor
);
3711 index
= bld
.vadd32(bld
.def(v1
), start_instance
, divided
);
3713 index
= bld
.vadd32(bld
.def(v1
), start_instance
, instance_id
);
3716 index
= bld
.vop1(aco_opcode::v_mov_b32
, bld
.def(v1
), start_instance
);
3719 index
= bld
.vadd32(bld
.def(v1
),
3720 get_arg(ctx
, ctx
->args
->ac
.base_vertex
),
3721 get_arg(ctx
, ctx
->args
->ac
.vertex_id
));
3724 Temp channels
[num_channels
];
3725 unsigned channel_start
= 0;
3726 bool direct_fetch
= false;
3728 /* skip unused channels at the start */
3729 if (vtx_info
->chan_byte_size
&& !post_shuffle
) {
3730 channel_start
= ffs(mask
) - 1;
3731 for (unsigned i
= 0; i
< channel_start
; i
++)
3732 channels
[i
] = Temp(0, s1
);
3733 } else if (vtx_info
->chan_byte_size
&& post_shuffle
&& !(mask
& 0x8)) {
3734 num_channels
= 3 - (ffs(mask
) - 1);
3738 while (channel_start
< num_channels
) {
3739 unsigned fetch_size
= num_channels
- channel_start
;
3740 unsigned fetch_offset
= attrib_offset
+ channel_start
* vtx_info
->chan_byte_size
;
3741 bool expanded
= false;
3743 /* use MUBUF when possible to avoid possible alignment issues */
3744 /* TODO: we could use SDWA to unpack 8/16-bit attributes without extra instructions */
3745 bool use_mubuf
= (nfmt
== V_008F0C_BUF_NUM_FORMAT_FLOAT
||
3746 nfmt
== V_008F0C_BUF_NUM_FORMAT_UINT
||
3747 nfmt
== V_008F0C_BUF_NUM_FORMAT_SINT
) &&
3748 vtx_info
->chan_byte_size
== 4;
3749 unsigned fetch_dfmt
= V_008F0C_BUF_DATA_FORMAT_INVALID
;
3751 fetch_dfmt
= get_fetch_data_format(ctx
, vtx_info
, fetch_offset
, attrib_stride
, &fetch_size
);
3753 if (fetch_size
== 3 && ctx
->options
->chip_class
== GFX6
) {
3754 /* GFX6 only supports loading vec3 with MTBUF, expand to vec4. */
3760 Temp fetch_index
= index
;
3761 if (attrib_stride
!= 0 && fetch_offset
> attrib_stride
) {
3762 fetch_index
= bld
.vadd32(bld
.def(v1
), Operand(fetch_offset
/ attrib_stride
), fetch_index
);
3763 fetch_offset
= fetch_offset
% attrib_stride
;
3766 Operand
soffset(0u);
3767 if (fetch_offset
>= 4096) {
3768 soffset
= bld
.copy(bld
.def(s1
), Operand(fetch_offset
/ 4096 * 4096));
3769 fetch_offset
%= 4096;
3773 switch (fetch_size
) {
3775 opcode
= use_mubuf
? aco_opcode::buffer_load_dword
: aco_opcode::tbuffer_load_format_x
;
3778 opcode
= use_mubuf
? aco_opcode::buffer_load_dwordx2
: aco_opcode::tbuffer_load_format_xy
;
3781 assert(ctx
->options
->chip_class
>= GFX7
||
3782 (!use_mubuf
&& ctx
->options
->chip_class
== GFX6
));
3783 opcode
= use_mubuf
? aco_opcode::buffer_load_dwordx3
: aco_opcode::tbuffer_load_format_xyz
;
3786 opcode
= use_mubuf
? aco_opcode::buffer_load_dwordx4
: aco_opcode::tbuffer_load_format_xyzw
;
3789 unreachable("Unimplemented load_input vector size");
3793 if (channel_start
== 0 && fetch_size
== dst
.size() && !post_shuffle
&&
3794 !expanded
&& (alpha_adjust
== RADV_ALPHA_ADJUST_NONE
||
3795 num_channels
<= 3)) {
3796 direct_fetch
= true;
3799 fetch_dst
= bld
.tmp(RegType::vgpr
, fetch_size
);
3803 Instruction
*mubuf
= bld
.mubuf(opcode
,
3804 Definition(fetch_dst
), list
, fetch_index
, soffset
,
3805 fetch_offset
, false, true).instr
;
3806 static_cast<MUBUF_instruction
*>(mubuf
)->can_reorder
= true;
3808 Instruction
*mtbuf
= bld
.mtbuf(opcode
,
3809 Definition(fetch_dst
), list
, fetch_index
, soffset
,
3810 fetch_dfmt
, nfmt
, fetch_offset
, false, true).instr
;
3811 static_cast<MTBUF_instruction
*>(mtbuf
)->can_reorder
= true;
3814 emit_split_vector(ctx
, fetch_dst
, fetch_dst
.size());
3816 if (fetch_size
== 1) {
3817 channels
[channel_start
] = fetch_dst
;
3819 for (unsigned i
= 0; i
< MIN2(fetch_size
, num_channels
- channel_start
); i
++)
3820 channels
[channel_start
+ i
] = emit_extract_vector(ctx
, fetch_dst
, i
, v1
);
3823 channel_start
+= fetch_size
;
3826 if (!direct_fetch
) {
3827 bool is_float
= nfmt
!= V_008F0C_BUF_NUM_FORMAT_UINT
&&
3828 nfmt
!= V_008F0C_BUF_NUM_FORMAT_SINT
;
3830 static const unsigned swizzle_normal
[4] = {0, 1, 2, 3};
3831 static const unsigned swizzle_post_shuffle
[4] = {2, 1, 0, 3};
3832 const unsigned *swizzle
= post_shuffle
? swizzle_post_shuffle
: swizzle_normal
;
3834 aco_ptr
<Instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, dst
.size(), 1)};
3835 std::array
<Temp
,NIR_MAX_VEC_COMPONENTS
> elems
;
3836 unsigned num_temp
= 0;
3837 for (unsigned i
= 0; i
< dst
.size(); i
++) {
3838 unsigned idx
= i
+ component
;
3839 if (swizzle
[idx
] < num_channels
&& channels
[swizzle
[idx
]].id()) {
3840 Temp channel
= channels
[swizzle
[idx
]];
3841 if (idx
== 3 && alpha_adjust
!= RADV_ALPHA_ADJUST_NONE
)
3842 channel
= adjust_vertex_fetch_alpha(ctx
, alpha_adjust
, channel
);
3843 vec
->operands
[i
] = Operand(channel
);
3847 } else if (is_float
&& idx
== 3) {
3848 vec
->operands
[i
] = Operand(0x3f800000u
);
3849 } else if (!is_float
&& idx
== 3) {
3850 vec
->operands
[i
] = Operand(1u);
3852 vec
->operands
[i
] = Operand(0u);
3855 vec
->definitions
[0] = Definition(dst
);
3856 ctx
->block
->instructions
.emplace_back(std::move(vec
));
3857 emit_split_vector(ctx
, dst
, dst
.size());
3859 if (num_temp
== dst
.size())
3860 ctx
->allocated_vec
.emplace(dst
.id(), elems
);
3862 } else if (ctx
->shader
->info
.stage
== MESA_SHADER_FRAGMENT
) {
3863 unsigned offset_idx
= instr
->intrinsic
== nir_intrinsic_load_input
? 0 : 1;
3864 nir_instr
*off_instr
= instr
->src
[offset_idx
].ssa
->parent_instr
;
3865 if (off_instr
->type
!= nir_instr_type_load_const
||
3866 nir_instr_as_load_const(off_instr
)->value
[0].u32
!= 0) {
3867 fprintf(stderr
, "Unimplemented nir_intrinsic_load_input offset\n");
3868 nir_print_instr(off_instr
, stderr
);
3869 fprintf(stderr
, "\n");
3872 Temp prim_mask
= get_arg(ctx
, ctx
->args
->ac
.prim_mask
);
3873 nir_const_value
* offset
= nir_src_as_const_value(instr
->src
[offset_idx
]);
3875 assert(offset
->u32
== 0);
3877 /* the lower 15bit of the prim_mask contain the offset into LDS
3878 * while the upper bits contain the number of prims */
3879 Temp offset_src
= get_ssa_temp(ctx
, instr
->src
[offset_idx
].ssa
);
3880 assert(offset_src
.regClass() == s1
&& "TODO: divergent offsets...");
3881 Builder
bld(ctx
->program
, ctx
->block
);
3882 Temp stride
= bld
.sop2(aco_opcode::s_lshr_b32
, bld
.def(s1
), bld
.def(s1
, scc
), prim_mask
, Operand(16u));
3883 stride
= bld
.sop1(aco_opcode::s_bcnt1_i32_b32
, bld
.def(s1
), bld
.def(s1
, scc
), stride
);
3884 stride
= bld
.sop2(aco_opcode::s_mul_i32
, bld
.def(s1
), stride
, Operand(48u));
3885 offset_src
= bld
.sop2(aco_opcode::s_mul_i32
, bld
.def(s1
), stride
, offset_src
);
3886 prim_mask
= bld
.sop2(aco_opcode::s_add_i32
, bld
.def(s1
, m0
), bld
.def(s1
, scc
), offset_src
, prim_mask
);
3889 unsigned idx
= nir_intrinsic_base(instr
);
3890 unsigned component
= nir_intrinsic_component(instr
);
3891 unsigned vertex_id
= 2; /* P0 */
3893 if (instr
->intrinsic
== nir_intrinsic_load_input_vertex
) {
3894 nir_const_value
* src0
= nir_src_as_const_value(instr
->src
[0]);
3895 switch (src0
->u32
) {
3897 vertex_id
= 2; /* P0 */
3900 vertex_id
= 0; /* P10 */
3903 vertex_id
= 1; /* P20 */
3906 unreachable("invalid vertex index");
3910 if (dst
.size() == 1) {
3911 bld
.vintrp(aco_opcode::v_interp_mov_f32
, Definition(dst
), Operand(vertex_id
), bld
.m0(prim_mask
), idx
, component
);
3913 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, dst
.size(), 1)};
3914 for (unsigned i
= 0; i
< dst
.size(); i
++)
3915 vec
->operands
[i
] = bld
.vintrp(aco_opcode::v_interp_mov_f32
, bld
.def(v1
), Operand(vertex_id
), bld
.m0(prim_mask
), idx
, component
+ i
);
3916 vec
->definitions
[0] = Definition(dst
);
3917 bld
.insert(std::move(vec
));
3920 } else if (ctx
->shader
->info
.stage
== MESA_SHADER_TESS_EVAL
) {
3921 Temp ring
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), ctx
->program
->private_segment_buffer
, Operand(RING_HS_TESS_OFFCHIP
* 16u));
3922 Temp soffset
= get_arg(ctx
, ctx
->args
->oc_lds
);
3923 std::pair
<Temp
, unsigned> offs
= get_tcs_per_patch_output_vmem_offset(ctx
, instr
);
3924 unsigned elem_size_bytes
= instr
->dest
.ssa
.bit_size
/ 8u;
3926 load_vmem_mubuf(ctx
, dst
, ring
, offs
.first
, soffset
, offs
.second
, elem_size_bytes
, instr
->dest
.ssa
.num_components
);
3928 unreachable("Shader stage not implemented");
3932 std::pair
<Temp
, unsigned> get_gs_per_vertex_input_offset(isel_context
*ctx
, nir_intrinsic_instr
*instr
, unsigned base_stride
= 1u)
3934 assert(ctx
->shader
->info
.stage
== MESA_SHADER_GEOMETRY
);
3936 Builder
bld(ctx
->program
, ctx
->block
);
3937 nir_src
*vertex_src
= nir_get_io_vertex_index_src(instr
);
3940 if (!nir_src_is_const(*vertex_src
)) {
3941 /* better code could be created, but this case probably doesn't happen
3942 * much in practice */
3943 Temp indirect_vertex
= as_vgpr(ctx
, get_ssa_temp(ctx
, vertex_src
->ssa
));
3944 for (unsigned i
= 0; i
< ctx
->shader
->info
.gs
.vertices_in
; i
++) {
3947 if (ctx
->stage
== vertex_geometry_gs
|| ctx
->stage
== tess_eval_geometry_gs
) {
3948 elem
= get_arg(ctx
, ctx
->args
->gs_vtx_offset
[i
/ 2u * 2u]);
3950 elem
= bld
.vop2(aco_opcode::v_lshrrev_b32
, bld
.def(v1
), Operand(16u), elem
);
3952 elem
= get_arg(ctx
, ctx
->args
->gs_vtx_offset
[i
]);
3955 if (vertex_offset
.id()) {
3956 Temp cond
= bld
.vopc(aco_opcode::v_cmp_eq_u32
, bld
.hint_vcc(bld
.def(bld
.lm
)),
3957 Operand(i
), indirect_vertex
);
3958 vertex_offset
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), vertex_offset
, elem
, cond
);
3960 vertex_offset
= elem
;
3964 if (ctx
->stage
== vertex_geometry_gs
|| ctx
->stage
== tess_eval_geometry_gs
)
3965 vertex_offset
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(0xffffu
), vertex_offset
);
3967 unsigned vertex
= nir_src_as_uint(*vertex_src
);
3968 if (ctx
->stage
== vertex_geometry_gs
|| ctx
->stage
== tess_eval_geometry_gs
)
3969 vertex_offset
= bld
.vop3(aco_opcode::v_bfe_u32
, bld
.def(v1
),
3970 get_arg(ctx
, ctx
->args
->gs_vtx_offset
[vertex
/ 2u * 2u]),
3971 Operand((vertex
% 2u) * 16u), Operand(16u));
3973 vertex_offset
= get_arg(ctx
, ctx
->args
->gs_vtx_offset
[vertex
]);
3976 std::pair
<Temp
, unsigned> offs
= get_intrinsic_io_basic_offset(ctx
, instr
, base_stride
);
3977 offs
= offset_add(ctx
, offs
, std::make_pair(vertex_offset
, 0u));
3978 return offset_mul(ctx
, offs
, 4u);
3981 void visit_load_gs_per_vertex_input(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
3983 assert(ctx
->shader
->info
.stage
== MESA_SHADER_GEOMETRY
);
3985 Builder
bld(ctx
->program
, ctx
->block
);
3986 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
3987 unsigned elem_size_bytes
= instr
->dest
.ssa
.bit_size
/ 8;
3989 if (ctx
->stage
== geometry_gs
) {
3990 std::pair
<Temp
, unsigned> offs
= get_gs_per_vertex_input_offset(ctx
, instr
, ctx
->program
->wave_size
);
3991 Temp ring
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), ctx
->program
->private_segment_buffer
, Operand(RING_ESGS_GS
* 16u));
3992 load_vmem_mubuf(ctx
, dst
, ring
, offs
.first
, Temp(), offs
.second
, elem_size_bytes
, instr
->dest
.ssa
.num_components
, 4u * ctx
->program
->wave_size
, false, true);
3993 } else if (ctx
->stage
== vertex_geometry_gs
|| ctx
->stage
== tess_eval_geometry_gs
) {
3994 std::pair
<Temp
, unsigned> offs
= get_gs_per_vertex_input_offset(ctx
, instr
);
3995 unsigned lds_align
= calculate_lds_alignment(ctx
, offs
.second
);
3996 load_lds(ctx
, elem_size_bytes
, dst
, offs
.first
, offs
.second
, lds_align
);
3998 unreachable("Unsupported GS stage.");
4002 void visit_load_tcs_per_vertex_input(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
4004 assert(ctx
->shader
->info
.stage
== MESA_SHADER_TESS_CTRL
);
4006 Builder
bld(ctx
->program
, ctx
->block
);
4007 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
4009 if (load_input_from_temps(ctx
, instr
, dst
))
4012 std::pair
<Temp
, unsigned> offs
= get_tcs_per_vertex_input_lds_offset(ctx
, instr
);
4013 unsigned elem_size_bytes
= instr
->dest
.ssa
.bit_size
/ 8;
4014 unsigned lds_align
= calculate_lds_alignment(ctx
, offs
.second
);
4016 load_lds(ctx
, elem_size_bytes
, dst
, offs
.first
, offs
.second
, lds_align
);
4019 void visit_load_tes_per_vertex_input(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
4021 assert(ctx
->shader
->info
.stage
== MESA_SHADER_TESS_EVAL
);
4023 Builder
bld(ctx
->program
, ctx
->block
);
4025 Temp ring
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), ctx
->program
->private_segment_buffer
, Operand(RING_HS_TESS_OFFCHIP
* 16u));
4026 Temp oc_lds
= get_arg(ctx
, ctx
->args
->oc_lds
);
4027 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
4029 unsigned elem_size_bytes
= instr
->dest
.ssa
.bit_size
/ 8;
4030 std::pair
<Temp
, unsigned> offs
= get_tcs_per_vertex_output_vmem_offset(ctx
, instr
);
4032 load_vmem_mubuf(ctx
, dst
, ring
, offs
.first
, oc_lds
, offs
.second
, elem_size_bytes
, instr
->dest
.ssa
.num_components
, 0u, true, true);
4035 void visit_load_per_vertex_input(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
4037 switch (ctx
->shader
->info
.stage
) {
4038 case MESA_SHADER_GEOMETRY
:
4039 visit_load_gs_per_vertex_input(ctx
, instr
);
4041 case MESA_SHADER_TESS_CTRL
:
4042 visit_load_tcs_per_vertex_input(ctx
, instr
);
4044 case MESA_SHADER_TESS_EVAL
:
4045 visit_load_tes_per_vertex_input(ctx
, instr
);
4048 unreachable("Unimplemented shader stage");
4052 void visit_load_per_vertex_output(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
4054 visit_load_tcs_output(ctx
, instr
, true);
4057 void visit_store_per_vertex_output(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
4059 assert(ctx
->stage
== tess_control_hs
|| ctx
->stage
== vertex_tess_control_hs
);
4060 assert(ctx
->shader
->info
.stage
== MESA_SHADER_TESS_CTRL
);
4062 visit_store_tcs_output(ctx
, instr
, true);
4065 void visit_load_tess_coord(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
4067 assert(ctx
->shader
->info
.stage
== MESA_SHADER_TESS_EVAL
);
4069 Builder
bld(ctx
->program
, ctx
->block
);
4070 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
4072 Operand
tes_u(get_arg(ctx
, ctx
->args
->tes_u
));
4073 Operand
tes_v(get_arg(ctx
, ctx
->args
->tes_v
));
4076 if (ctx
->shader
->info
.tess
.primitive_mode
== GL_TRIANGLES
) {
4077 Temp tmp
= bld
.vop2(aco_opcode::v_add_f32
, bld
.def(v1
), tes_u
, tes_v
);
4078 tmp
= bld
.vop2(aco_opcode::v_sub_f32
, bld
.def(v1
), Operand(0x3f800000u
/* 1.0f */), tmp
);
4079 tes_w
= Operand(tmp
);
4082 Temp tess_coord
= bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), tes_u
, tes_v
, tes_w
);
4083 emit_split_vector(ctx
, tess_coord
, 3);
4086 Temp
load_desc_ptr(isel_context
*ctx
, unsigned desc_set
)
4088 if (ctx
->program
->info
->need_indirect_descriptor_sets
) {
4089 Builder
bld(ctx
->program
, ctx
->block
);
4090 Temp ptr64
= convert_pointer_to_64_bit(ctx
, get_arg(ctx
, ctx
->args
->descriptor_sets
[0]));
4091 Operand off
= bld
.copy(bld
.def(s1
), Operand(desc_set
<< 2));
4092 return bld
.smem(aco_opcode::s_load_dword
, bld
.def(s1
), ptr64
, off
);//, false, false, false);
4095 return get_arg(ctx
, ctx
->args
->descriptor_sets
[desc_set
]);
4099 void visit_load_resource(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
4101 Builder
bld(ctx
->program
, ctx
->block
);
4102 Temp index
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
4103 if (!ctx
->divergent_vals
[instr
->dest
.ssa
.index
])
4104 index
= bld
.as_uniform(index
);
4105 unsigned desc_set
= nir_intrinsic_desc_set(instr
);
4106 unsigned binding
= nir_intrinsic_binding(instr
);
4109 radv_pipeline_layout
*pipeline_layout
= ctx
->options
->layout
;
4110 radv_descriptor_set_layout
*layout
= pipeline_layout
->set
[desc_set
].layout
;
4111 unsigned offset
= layout
->binding
[binding
].offset
;
4113 if (layout
->binding
[binding
].type
== VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC
||
4114 layout
->binding
[binding
].type
== VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC
) {
4115 unsigned idx
= pipeline_layout
->set
[desc_set
].dynamic_offset_start
+ layout
->binding
[binding
].dynamic_offset_offset
;
4116 desc_ptr
= get_arg(ctx
, ctx
->args
->ac
.push_constants
);
4117 offset
= pipeline_layout
->push_constant_size
+ 16 * idx
;
4120 desc_ptr
= load_desc_ptr(ctx
, desc_set
);
4121 stride
= layout
->binding
[binding
].size
;
4124 nir_const_value
* nir_const_index
= nir_src_as_const_value(instr
->src
[0]);
4125 unsigned const_index
= nir_const_index
? nir_const_index
->u32
: 0;
4127 if (nir_const_index
) {
4128 const_index
= const_index
* stride
;
4129 } else if (index
.type() == RegType::vgpr
) {
4130 bool index24bit
= layout
->binding
[binding
].array_size
<= 0x1000000;
4131 index
= bld
.v_mul_imm(bld
.def(v1
), index
, stride
, index24bit
);
4133 index
= bld
.sop2(aco_opcode::s_mul_i32
, bld
.def(s1
), Operand(stride
), Operand(index
));
4137 if (nir_const_index
) {
4138 const_index
= const_index
+ offset
;
4139 } else if (index
.type() == RegType::vgpr
) {
4140 index
= bld
.vadd32(bld
.def(v1
), Operand(offset
), index
);
4142 index
= bld
.sop2(aco_opcode::s_add_i32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(offset
), Operand(index
));
4146 if (nir_const_index
&& const_index
== 0) {
4148 } else if (index
.type() == RegType::vgpr
) {
4149 index
= bld
.vadd32(bld
.def(v1
),
4150 nir_const_index
? Operand(const_index
) : Operand(index
),
4153 index
= bld
.sop2(aco_opcode::s_add_i32
, bld
.def(s1
), bld
.def(s1
, scc
),
4154 nir_const_index
? Operand(const_index
) : Operand(index
),
4158 bld
.copy(Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)), index
);
4161 void load_buffer(isel_context
*ctx
, unsigned num_components
, Temp dst
,
4162 Temp rsrc
, Temp offset
, bool glc
=false, bool readonly
=true)
4164 Builder
bld(ctx
->program
, ctx
->block
);
4166 unsigned num_bytes
= dst
.size() * 4;
4167 bool dlc
= glc
&& ctx
->options
->chip_class
>= GFX10
;
4170 if (dst
.type() == RegType::vgpr
|| (ctx
->options
->chip_class
< GFX8
&& !readonly
)) {
4171 Operand vaddr
= offset
.type() == RegType::vgpr
? Operand(offset
) : Operand(v1
);
4172 Operand soffset
= offset
.type() == RegType::sgpr
? Operand(offset
) : Operand((uint32_t) 0);
4173 unsigned const_offset
= 0;
4175 Temp lower
= Temp();
4176 if (num_bytes
> 16) {
4177 assert(num_components
== 3 || num_components
== 4);
4178 op
= aco_opcode::buffer_load_dwordx4
;
4179 lower
= bld
.tmp(v4
);
4180 aco_ptr
<MUBUF_instruction
> mubuf
{create_instruction
<MUBUF_instruction
>(op
, Format::MUBUF
, 3, 1)};
4181 mubuf
->definitions
[0] = Definition(lower
);
4182 mubuf
->operands
[0] = Operand(rsrc
);
4183 mubuf
->operands
[1] = vaddr
;
4184 mubuf
->operands
[2] = soffset
;
4185 mubuf
->offen
= (offset
.type() == RegType::vgpr
);
4188 mubuf
->barrier
= readonly
? barrier_none
: barrier_buffer
;
4189 mubuf
->can_reorder
= readonly
;
4190 bld
.insert(std::move(mubuf
));
4191 emit_split_vector(ctx
, lower
, 2);
4194 } else if (num_bytes
== 12 && ctx
->options
->chip_class
== GFX6
) {
4195 /* GFX6 doesn't support loading vec3, expand to vec4. */
4199 switch (num_bytes
) {
4201 op
= aco_opcode::buffer_load_dword
;
4204 op
= aco_opcode::buffer_load_dwordx2
;
4207 assert(ctx
->options
->chip_class
> GFX6
);
4208 op
= aco_opcode::buffer_load_dwordx3
;
4211 op
= aco_opcode::buffer_load_dwordx4
;
4214 unreachable("Load SSBO not implemented for this size.");
4216 aco_ptr
<MUBUF_instruction
> mubuf
{create_instruction
<MUBUF_instruction
>(op
, Format::MUBUF
, 3, 1)};
4217 mubuf
->operands
[0] = Operand(rsrc
);
4218 mubuf
->operands
[1] = vaddr
;
4219 mubuf
->operands
[2] = soffset
;
4220 mubuf
->offen
= (offset
.type() == RegType::vgpr
);
4223 mubuf
->barrier
= readonly
? barrier_none
: barrier_buffer
;
4224 mubuf
->can_reorder
= readonly
;
4225 mubuf
->offset
= const_offset
;
4226 aco_ptr
<Instruction
> instr
= std::move(mubuf
);
4228 if (dst
.size() > 4) {
4229 assert(lower
!= Temp());
4230 Temp upper
= bld
.tmp(RegType::vgpr
, dst
.size() - lower
.size());
4231 instr
->definitions
[0] = Definition(upper
);
4232 bld
.insert(std::move(instr
));
4233 if (dst
.size() == 8)
4234 emit_split_vector(ctx
, upper
, 2);
4235 instr
.reset(create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, dst
.size() / 2, 1));
4236 instr
->operands
[0] = Operand(emit_extract_vector(ctx
, lower
, 0, v2
));
4237 instr
->operands
[1] = Operand(emit_extract_vector(ctx
, lower
, 1, v2
));
4238 instr
->operands
[2] = Operand(emit_extract_vector(ctx
, upper
, 0, v2
));
4239 if (dst
.size() == 8)
4240 instr
->operands
[3] = Operand(emit_extract_vector(ctx
, upper
, 1, v2
));
4241 } else if (dst
.size() == 3 && ctx
->options
->chip_class
== GFX6
) {
4242 Temp vec
= bld
.tmp(v4
);
4243 instr
->definitions
[0] = Definition(vec
);
4244 bld
.insert(std::move(instr
));
4245 emit_split_vector(ctx
, vec
, 4);
4247 instr
.reset(create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, 3, 1));
4248 instr
->operands
[0] = Operand(emit_extract_vector(ctx
, vec
, 0, v1
));
4249 instr
->operands
[1] = Operand(emit_extract_vector(ctx
, vec
, 1, v1
));
4250 instr
->operands
[2] = Operand(emit_extract_vector(ctx
, vec
, 2, v1
));
4253 if (dst
.type() == RegType::sgpr
) {
4254 Temp vec
= bld
.tmp(RegType::vgpr
, dst
.size());
4255 instr
->definitions
[0] = Definition(vec
);
4256 bld
.insert(std::move(instr
));
4257 expand_vector(ctx
, vec
, dst
, num_components
, (1 << num_components
) - 1);
4259 instr
->definitions
[0] = Definition(dst
);
4260 bld
.insert(std::move(instr
));
4261 emit_split_vector(ctx
, dst
, num_components
);
4264 switch (num_bytes
) {
4266 op
= aco_opcode::s_buffer_load_dword
;
4269 op
= aco_opcode::s_buffer_load_dwordx2
;
4273 op
= aco_opcode::s_buffer_load_dwordx4
;
4277 op
= aco_opcode::s_buffer_load_dwordx8
;
4280 unreachable("Load SSBO not implemented for this size.");
4282 aco_ptr
<SMEM_instruction
> load
{create_instruction
<SMEM_instruction
>(op
, Format::SMEM
, 2, 1)};
4283 load
->operands
[0] = Operand(rsrc
);
4284 load
->operands
[1] = Operand(bld
.as_uniform(offset
));
4285 assert(load
->operands
[1].getTemp().type() == RegType::sgpr
);
4286 load
->definitions
[0] = Definition(dst
);
4289 load
->barrier
= readonly
? barrier_none
: barrier_buffer
;
4290 load
->can_reorder
= false; // FIXME: currently, it doesn't seem beneficial due to how our scheduler works
4291 assert(ctx
->options
->chip_class
>= GFX8
|| !glc
);
4294 if (dst
.size() == 3) {
4295 Temp vec
= bld
.tmp(s4
);
4296 load
->definitions
[0] = Definition(vec
);
4297 bld
.insert(std::move(load
));
4298 emit_split_vector(ctx
, vec
, 4);
4300 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
),
4301 emit_extract_vector(ctx
, vec
, 0, s1
),
4302 emit_extract_vector(ctx
, vec
, 1, s1
),
4303 emit_extract_vector(ctx
, vec
, 2, s1
));
4304 } else if (dst
.size() == 6) {
4305 Temp vec
= bld
.tmp(s8
);
4306 load
->definitions
[0] = Definition(vec
);
4307 bld
.insert(std::move(load
));
4308 emit_split_vector(ctx
, vec
, 4);
4310 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
),
4311 emit_extract_vector(ctx
, vec
, 0, s2
),
4312 emit_extract_vector(ctx
, vec
, 1, s2
),
4313 emit_extract_vector(ctx
, vec
, 2, s2
));
4315 bld
.insert(std::move(load
));
4317 emit_split_vector(ctx
, dst
, num_components
);
4321 void visit_load_ubo(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
4323 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
4324 Temp rsrc
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
4326 Builder
bld(ctx
->program
, ctx
->block
);
4328 nir_intrinsic_instr
* idx_instr
= nir_instr_as_intrinsic(instr
->src
[0].ssa
->parent_instr
);
4329 unsigned desc_set
= nir_intrinsic_desc_set(idx_instr
);
4330 unsigned binding
= nir_intrinsic_binding(idx_instr
);
4331 radv_descriptor_set_layout
*layout
= ctx
->options
->layout
->set
[desc_set
].layout
;
4333 if (layout
->binding
[binding
].type
== VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT
) {
4334 uint32_t desc_type
= S_008F0C_DST_SEL_X(V_008F0C_SQ_SEL_X
) |
4335 S_008F0C_DST_SEL_Y(V_008F0C_SQ_SEL_Y
) |
4336 S_008F0C_DST_SEL_Z(V_008F0C_SQ_SEL_Z
) |
4337 S_008F0C_DST_SEL_W(V_008F0C_SQ_SEL_W
);
4338 if (ctx
->options
->chip_class
>= GFX10
) {
4339 desc_type
|= S_008F0C_FORMAT(V_008F0C_IMG_FORMAT_32_FLOAT
) |
4340 S_008F0C_OOB_SELECT(V_008F0C_OOB_SELECT_RAW
) |
4341 S_008F0C_RESOURCE_LEVEL(1);
4343 desc_type
|= S_008F0C_NUM_FORMAT(V_008F0C_BUF_NUM_FORMAT_FLOAT
) |
4344 S_008F0C_DATA_FORMAT(V_008F0C_BUF_DATA_FORMAT_32
);
4346 Temp upper_dwords
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s3
),
4347 Operand(S_008F04_BASE_ADDRESS_HI(ctx
->options
->address32_hi
)),
4348 Operand(0xFFFFFFFFu
),
4349 Operand(desc_type
));
4350 rsrc
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s4
),
4351 rsrc
, upper_dwords
);
4353 rsrc
= convert_pointer_to_64_bit(ctx
, rsrc
);
4354 rsrc
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), rsrc
, Operand(0u));
4357 load_buffer(ctx
, instr
->num_components
, dst
, rsrc
, get_ssa_temp(ctx
, instr
->src
[1].ssa
));
4360 void visit_load_push_constant(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
4362 Builder
bld(ctx
->program
, ctx
->block
);
4363 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
4365 unsigned offset
= nir_intrinsic_base(instr
);
4366 nir_const_value
*index_cv
= nir_src_as_const_value(instr
->src
[0]);
4367 if (index_cv
&& instr
->dest
.ssa
.bit_size
== 32) {
4369 unsigned count
= instr
->dest
.ssa
.num_components
;
4370 unsigned start
= (offset
+ index_cv
->u32
) / 4u;
4371 start
-= ctx
->args
->ac
.base_inline_push_consts
;
4372 if (start
+ count
<= ctx
->args
->ac
.num_inline_push_consts
) {
4373 std::array
<Temp
,NIR_MAX_VEC_COMPONENTS
> elems
;
4374 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, count
, 1)};
4375 for (unsigned i
= 0; i
< count
; ++i
) {
4376 elems
[i
] = get_arg(ctx
, ctx
->args
->ac
.inline_push_consts
[start
+ i
]);
4377 vec
->operands
[i
] = Operand
{elems
[i
]};
4379 vec
->definitions
[0] = Definition(dst
);
4380 ctx
->block
->instructions
.emplace_back(std::move(vec
));
4381 ctx
->allocated_vec
.emplace(dst
.id(), elems
);
4386 Temp index
= bld
.as_uniform(get_ssa_temp(ctx
, instr
->src
[0].ssa
));
4387 if (offset
!= 0) // TODO check if index != 0 as well
4388 index
= bld
.sop2(aco_opcode::s_add_i32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(offset
), index
);
4389 Temp ptr
= convert_pointer_to_64_bit(ctx
, get_arg(ctx
, ctx
->args
->ac
.push_constants
));
4394 switch (dst
.size()) {
4396 op
= aco_opcode::s_load_dword
;
4399 op
= aco_opcode::s_load_dwordx2
;
4405 op
= aco_opcode::s_load_dwordx4
;
4411 op
= aco_opcode::s_load_dwordx8
;
4414 unreachable("unimplemented or forbidden load_push_constant.");
4417 bld
.smem(op
, Definition(vec
), ptr
, index
);
4420 emit_split_vector(ctx
, vec
, 4);
4421 RegClass rc
= dst
.size() == 3 ? s1
: s2
;
4422 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
),
4423 emit_extract_vector(ctx
, vec
, 0, rc
),
4424 emit_extract_vector(ctx
, vec
, 1, rc
),
4425 emit_extract_vector(ctx
, vec
, 2, rc
));
4428 emit_split_vector(ctx
, dst
, instr
->dest
.ssa
.num_components
);
4431 void visit_load_constant(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
4433 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
4435 Builder
bld(ctx
->program
, ctx
->block
);
4437 uint32_t desc_type
= S_008F0C_DST_SEL_X(V_008F0C_SQ_SEL_X
) |
4438 S_008F0C_DST_SEL_Y(V_008F0C_SQ_SEL_Y
) |
4439 S_008F0C_DST_SEL_Z(V_008F0C_SQ_SEL_Z
) |
4440 S_008F0C_DST_SEL_W(V_008F0C_SQ_SEL_W
);
4441 if (ctx
->options
->chip_class
>= GFX10
) {
4442 desc_type
|= S_008F0C_FORMAT(V_008F0C_IMG_FORMAT_32_FLOAT
) |
4443 S_008F0C_OOB_SELECT(V_008F0C_OOB_SELECT_RAW
) |
4444 S_008F0C_RESOURCE_LEVEL(1);
4446 desc_type
|= S_008F0C_NUM_FORMAT(V_008F0C_BUF_NUM_FORMAT_FLOAT
) |
4447 S_008F0C_DATA_FORMAT(V_008F0C_BUF_DATA_FORMAT_32
);
4450 unsigned base
= nir_intrinsic_base(instr
);
4451 unsigned range
= nir_intrinsic_range(instr
);
4453 Temp offset
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
4454 if (base
&& offset
.type() == RegType::sgpr
)
4455 offset
= bld
.sop2(aco_opcode::s_add_u32
, bld
.def(s1
), bld
.def(s1
, scc
), offset
, Operand(base
));
4456 else if (base
&& offset
.type() == RegType::vgpr
)
4457 offset
= bld
.vadd32(bld
.def(v1
), Operand(base
), offset
);
4459 Temp rsrc
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s4
),
4460 bld
.sop1(aco_opcode::p_constaddr
, bld
.def(s2
), bld
.def(s1
, scc
), Operand(ctx
->constant_data_offset
)),
4461 Operand(MIN2(base
+ range
, ctx
->shader
->constant_data_size
)),
4462 Operand(desc_type
));
4464 load_buffer(ctx
, instr
->num_components
, dst
, rsrc
, offset
);
4467 void visit_discard_if(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
4469 if (ctx
->cf_info
.loop_nest_depth
|| ctx
->cf_info
.parent_if
.is_divergent
)
4470 ctx
->cf_info
.exec_potentially_empty_discard
= true;
4472 ctx
->program
->needs_exact
= true;
4474 // TODO: optimize uniform conditions
4475 Builder
bld(ctx
->program
, ctx
->block
);
4476 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
4477 assert(src
.regClass() == bld
.lm
);
4478 src
= bld
.sop2(Builder::s_and
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), src
, Operand(exec
, bld
.lm
));
4479 bld
.pseudo(aco_opcode::p_discard_if
, src
);
4480 ctx
->block
->kind
|= block_kind_uses_discard_if
;
4484 void visit_discard(isel_context
* ctx
, nir_intrinsic_instr
*instr
)
4486 Builder
bld(ctx
->program
, ctx
->block
);
4488 if (ctx
->cf_info
.loop_nest_depth
|| ctx
->cf_info
.parent_if
.is_divergent
)
4489 ctx
->cf_info
.exec_potentially_empty_discard
= true;
4491 bool divergent
= ctx
->cf_info
.parent_if
.is_divergent
||
4492 ctx
->cf_info
.parent_loop
.has_divergent_continue
;
4494 if (ctx
->block
->loop_nest_depth
&&
4495 ((nir_instr_is_last(&instr
->instr
) && !divergent
) || divergent
)) {
4496 /* we handle discards the same way as jump instructions */
4497 append_logical_end(ctx
->block
);
4499 /* in loops, discard behaves like break */
4500 Block
*linear_target
= ctx
->cf_info
.parent_loop
.exit
;
4501 ctx
->block
->kind
|= block_kind_discard
;
4504 /* uniform discard - loop ends here */
4505 assert(nir_instr_is_last(&instr
->instr
));
4506 ctx
->block
->kind
|= block_kind_uniform
;
4507 ctx
->cf_info
.has_branch
= true;
4508 bld
.branch(aco_opcode::p_branch
);
4509 add_linear_edge(ctx
->block
->index
, linear_target
);
4513 /* we add a break right behind the discard() instructions */
4514 ctx
->block
->kind
|= block_kind_break
;
4515 unsigned idx
= ctx
->block
->index
;
4517 ctx
->cf_info
.parent_loop
.has_divergent_branch
= true;
4518 ctx
->cf_info
.nir_to_aco
[instr
->instr
.block
->index
] = idx
;
4520 /* remove critical edges from linear CFG */
4521 bld
.branch(aco_opcode::p_branch
);
4522 Block
* break_block
= ctx
->program
->create_and_insert_block();
4523 break_block
->loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
4524 break_block
->kind
|= block_kind_uniform
;
4525 add_linear_edge(idx
, break_block
);
4526 add_linear_edge(break_block
->index
, linear_target
);
4527 bld
.reset(break_block
);
4528 bld
.branch(aco_opcode::p_branch
);
4530 Block
* continue_block
= ctx
->program
->create_and_insert_block();
4531 continue_block
->loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
4532 add_linear_edge(idx
, continue_block
);
4533 append_logical_start(continue_block
);
4534 ctx
->block
= continue_block
;
4539 /* it can currently happen that NIR doesn't remove the unreachable code */
4540 if (!nir_instr_is_last(&instr
->instr
)) {
4541 ctx
->program
->needs_exact
= true;
4542 /* save exec somewhere temporarily so that it doesn't get
4543 * overwritten before the discard from outer exec masks */
4544 Temp cond
= bld
.sop2(Builder::s_and
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), Operand(0xFFFFFFFF), Operand(exec
, bld
.lm
));
4545 bld
.pseudo(aco_opcode::p_discard_if
, cond
);
4546 ctx
->block
->kind
|= block_kind_uses_discard_if
;
4550 /* This condition is incorrect for uniformly branched discards in a loop
4551 * predicated by a divergent condition, but the above code catches that case
4552 * and the discard would end up turning into a discard_if.
4562 if (!ctx
->cf_info
.parent_if
.is_divergent
) {
4563 /* program just ends here */
4564 ctx
->block
->kind
|= block_kind_uniform
;
4565 bld
.exp(aco_opcode::exp
, Operand(v1
), Operand(v1
), Operand(v1
), Operand(v1
),
4566 0 /* enabled mask */, 9 /* dest */,
4567 false /* compressed */, true/* done */, true /* valid mask */);
4568 bld
.sopp(aco_opcode::s_endpgm
);
4569 // TODO: it will potentially be followed by a branch which is dead code to sanitize NIR phis
4571 ctx
->block
->kind
|= block_kind_discard
;
4572 /* branch and linear edge is added by visit_if() */
4576 enum aco_descriptor_type
{
4587 should_declare_array(isel_context
*ctx
, enum glsl_sampler_dim sampler_dim
, bool is_array
) {
4588 if (sampler_dim
== GLSL_SAMPLER_DIM_BUF
)
4590 ac_image_dim dim
= ac_get_sampler_dim(ctx
->options
->chip_class
, sampler_dim
, is_array
);
4591 return dim
== ac_image_cube
||
4592 dim
== ac_image_1darray
||
4593 dim
== ac_image_2darray
||
4594 dim
== ac_image_2darraymsaa
;
4597 Temp
get_sampler_desc(isel_context
*ctx
, nir_deref_instr
*deref_instr
,
4598 enum aco_descriptor_type desc_type
,
4599 const nir_tex_instr
*tex_instr
, bool image
, bool write
)
4601 /* FIXME: we should lower the deref with some new nir_intrinsic_load_desc
4602 std::unordered_map<uint64_t, Temp>::iterator it = ctx->tex_desc.find((uint64_t) desc_type << 32 | deref_instr->dest.ssa.index);
4603 if (it != ctx->tex_desc.end())
4606 Temp index
= Temp();
4607 bool index_set
= false;
4608 unsigned constant_index
= 0;
4609 unsigned descriptor_set
;
4610 unsigned base_index
;
4611 Builder
bld(ctx
->program
, ctx
->block
);
4614 assert(tex_instr
&& !image
);
4616 base_index
= tex_instr
->sampler_index
;
4618 while(deref_instr
->deref_type
!= nir_deref_type_var
) {
4619 unsigned array_size
= glsl_get_aoa_size(deref_instr
->type
);
4623 assert(deref_instr
->deref_type
== nir_deref_type_array
);
4624 nir_const_value
*const_value
= nir_src_as_const_value(deref_instr
->arr
.index
);
4626 constant_index
+= array_size
* const_value
->u32
;
4628 Temp indirect
= get_ssa_temp(ctx
, deref_instr
->arr
.index
.ssa
);
4629 if (indirect
.type() == RegType::vgpr
)
4630 indirect
= bld
.vop1(aco_opcode::v_readfirstlane_b32
, bld
.def(s1
), indirect
);
4632 if (array_size
!= 1)
4633 indirect
= bld
.sop2(aco_opcode::s_mul_i32
, bld
.def(s1
), Operand(array_size
), indirect
);
4639 index
= bld
.sop2(aco_opcode::s_add_i32
, bld
.def(s1
), bld
.def(s1
, scc
), index
, indirect
);
4643 deref_instr
= nir_src_as_deref(deref_instr
->parent
);
4645 descriptor_set
= deref_instr
->var
->data
.descriptor_set
;
4646 base_index
= deref_instr
->var
->data
.binding
;
4649 Temp list
= load_desc_ptr(ctx
, descriptor_set
);
4650 list
= convert_pointer_to_64_bit(ctx
, list
);
4652 struct radv_descriptor_set_layout
*layout
= ctx
->options
->layout
->set
[descriptor_set
].layout
;
4653 struct radv_descriptor_set_binding_layout
*binding
= layout
->binding
+ base_index
;
4654 unsigned offset
= binding
->offset
;
4655 unsigned stride
= binding
->size
;
4659 assert(base_index
< layout
->binding_count
);
4661 switch (desc_type
) {
4662 case ACO_DESC_IMAGE
:
4664 opcode
= aco_opcode::s_load_dwordx8
;
4666 case ACO_DESC_FMASK
:
4668 opcode
= aco_opcode::s_load_dwordx8
;
4671 case ACO_DESC_SAMPLER
:
4673 opcode
= aco_opcode::s_load_dwordx4
;
4674 if (binding
->type
== VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER
)
4675 offset
+= radv_combined_image_descriptor_sampler_offset(binding
);
4677 case ACO_DESC_BUFFER
:
4679 opcode
= aco_opcode::s_load_dwordx4
;
4681 case ACO_DESC_PLANE_0
:
4682 case ACO_DESC_PLANE_1
:
4684 opcode
= aco_opcode::s_load_dwordx8
;
4685 offset
+= 32 * (desc_type
- ACO_DESC_PLANE_0
);
4687 case ACO_DESC_PLANE_2
:
4689 opcode
= aco_opcode::s_load_dwordx4
;
4693 unreachable("invalid desc_type\n");
4696 offset
+= constant_index
* stride
;
4698 if (desc_type
== ACO_DESC_SAMPLER
&& binding
->immutable_samplers_offset
&&
4699 (!index_set
|| binding
->immutable_samplers_equal
)) {
4700 if (binding
->immutable_samplers_equal
)
4703 const uint32_t *samplers
= radv_immutable_samplers(layout
, binding
);
4704 return bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s4
),
4705 Operand(samplers
[constant_index
* 4 + 0]),
4706 Operand(samplers
[constant_index
* 4 + 1]),
4707 Operand(samplers
[constant_index
* 4 + 2]),
4708 Operand(samplers
[constant_index
* 4 + 3]));
4713 off
= bld
.copy(bld
.def(s1
), Operand(offset
));
4715 off
= Operand((Temp
)bld
.sop2(aco_opcode::s_add_i32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(offset
),
4716 bld
.sop2(aco_opcode::s_mul_i32
, bld
.def(s1
), Operand(stride
), index
)));
4719 Temp res
= bld
.smem(opcode
, bld
.def(type
), list
, off
);
4721 if (desc_type
== ACO_DESC_PLANE_2
) {
4723 for (unsigned i
= 0; i
< 8; i
++)
4724 components
[i
] = bld
.tmp(s1
);
4725 bld
.pseudo(aco_opcode::p_split_vector
,
4726 Definition(components
[0]),
4727 Definition(components
[1]),
4728 Definition(components
[2]),
4729 Definition(components
[3]),
4732 Temp desc2
= get_sampler_desc(ctx
, deref_instr
, ACO_DESC_PLANE_1
, tex_instr
, image
, write
);
4733 bld
.pseudo(aco_opcode::p_split_vector
,
4734 bld
.def(s1
), bld
.def(s1
), bld
.def(s1
), bld
.def(s1
),
4735 Definition(components
[4]),
4736 Definition(components
[5]),
4737 Definition(components
[6]),
4738 Definition(components
[7]),
4741 res
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s8
),
4742 components
[0], components
[1], components
[2], components
[3],
4743 components
[4], components
[5], components
[6], components
[7]);
4749 static int image_type_to_components_count(enum glsl_sampler_dim dim
, bool array
)
4752 case GLSL_SAMPLER_DIM_BUF
:
4754 case GLSL_SAMPLER_DIM_1D
:
4755 return array
? 2 : 1;
4756 case GLSL_SAMPLER_DIM_2D
:
4757 return array
? 3 : 2;
4758 case GLSL_SAMPLER_DIM_MS
:
4759 return array
? 4 : 3;
4760 case GLSL_SAMPLER_DIM_3D
:
4761 case GLSL_SAMPLER_DIM_CUBE
:
4763 case GLSL_SAMPLER_DIM_RECT
:
4764 case GLSL_SAMPLER_DIM_SUBPASS
:
4766 case GLSL_SAMPLER_DIM_SUBPASS_MS
:
4775 /* Adjust the sample index according to FMASK.
4777 * For uncompressed MSAA surfaces, FMASK should return 0x76543210,
4778 * which is the identity mapping. Each nibble says which physical sample
4779 * should be fetched to get that sample.
4781 * For example, 0x11111100 means there are only 2 samples stored and
4782 * the second sample covers 3/4 of the pixel. When reading samples 0
4783 * and 1, return physical sample 0 (determined by the first two 0s
4784 * in FMASK), otherwise return physical sample 1.
4786 * The sample index should be adjusted as follows:
4787 * sample_index = (fmask >> (sample_index * 4)) & 0xF;
4789 static Temp
adjust_sample_index_using_fmask(isel_context
*ctx
, bool da
, std::vector
<Temp
>& coords
, Operand sample_index
, Temp fmask_desc_ptr
)
4791 Builder
bld(ctx
->program
, ctx
->block
);
4792 Temp fmask
= bld
.tmp(v1
);
4793 unsigned dim
= ctx
->options
->chip_class
>= GFX10
4794 ? ac_get_sampler_dim(ctx
->options
->chip_class
, GLSL_SAMPLER_DIM_2D
, da
)
4797 Temp coord
= da
? bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v3
), coords
[0], coords
[1], coords
[2]) :
4798 bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), coords
[0], coords
[1]);
4799 aco_ptr
<MIMG_instruction
> load
{create_instruction
<MIMG_instruction
>(aco_opcode::image_load
, Format::MIMG
, 3, 1)};
4800 load
->operands
[0] = Operand(fmask_desc_ptr
);
4801 load
->operands
[1] = Operand(s4
); /* no sampler */
4802 load
->operands
[2] = Operand(coord
);
4803 load
->definitions
[0] = Definition(fmask
);
4810 load
->can_reorder
= true; /* fmask images shouldn't be modified */
4811 ctx
->block
->instructions
.emplace_back(std::move(load
));
4813 Operand sample_index4
;
4814 if (sample_index
.isConstant() && sample_index
.constantValue() < 16) {
4815 sample_index4
= Operand(sample_index
.constantValue() << 2);
4816 } else if (sample_index
.regClass() == s1
) {
4817 sample_index4
= bld
.sop2(aco_opcode::s_lshl_b32
, bld
.def(s1
), bld
.def(s1
, scc
), sample_index
, Operand(2u));
4819 assert(sample_index
.regClass() == v1
);
4820 sample_index4
= bld
.vop2(aco_opcode::v_lshlrev_b32
, bld
.def(v1
), Operand(2u), sample_index
);
4824 if (sample_index4
.isConstant() && sample_index4
.constantValue() == 0)
4825 final_sample
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(15u), fmask
);
4826 else if (sample_index4
.isConstant() && sample_index4
.constantValue() == 28)
4827 final_sample
= bld
.vop2(aco_opcode::v_lshrrev_b32
, bld
.def(v1
), Operand(28u), fmask
);
4829 final_sample
= bld
.vop3(aco_opcode::v_bfe_u32
, bld
.def(v1
), fmask
, sample_index4
, Operand(4u));
4831 /* Don't rewrite the sample index if WORD1.DATA_FORMAT of the FMASK
4832 * resource descriptor is 0 (invalid),
4834 Temp compare
= bld
.tmp(bld
.lm
);
4835 bld
.vopc_e64(aco_opcode::v_cmp_lg_u32
, Definition(compare
),
4836 Operand(0u), emit_extract_vector(ctx
, fmask_desc_ptr
, 1, s1
)).def(0).setHint(vcc
);
4838 Temp sample_index_v
= bld
.vop1(aco_opcode::v_mov_b32
, bld
.def(v1
), sample_index
);
4840 /* Replace the MSAA sample index. */
4841 return bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), sample_index_v
, final_sample
, compare
);
4844 static Temp
get_image_coords(isel_context
*ctx
, const nir_intrinsic_instr
*instr
, const struct glsl_type
*type
)
4847 Temp src0
= get_ssa_temp(ctx
, instr
->src
[1].ssa
);
4848 enum glsl_sampler_dim dim
= glsl_get_sampler_dim(type
);
4849 bool is_array
= glsl_sampler_type_is_array(type
);
4850 ASSERTED
bool add_frag_pos
= (dim
== GLSL_SAMPLER_DIM_SUBPASS
|| dim
== GLSL_SAMPLER_DIM_SUBPASS_MS
);
4851 assert(!add_frag_pos
&& "Input attachments should be lowered.");
4852 bool is_ms
= (dim
== GLSL_SAMPLER_DIM_MS
|| dim
== GLSL_SAMPLER_DIM_SUBPASS_MS
);
4853 bool gfx9_1d
= ctx
->options
->chip_class
== GFX9
&& dim
== GLSL_SAMPLER_DIM_1D
;
4854 int count
= image_type_to_components_count(dim
, is_array
);
4855 std::vector
<Temp
> coords(count
);
4856 Builder
bld(ctx
->program
, ctx
->block
);
4860 Temp src2
= get_ssa_temp(ctx
, instr
->src
[2].ssa
);
4861 /* get sample index */
4862 if (instr
->intrinsic
== nir_intrinsic_image_deref_load
) {
4863 nir_const_value
*sample_cv
= nir_src_as_const_value(instr
->src
[2]);
4864 Operand sample_index
= sample_cv
? Operand(sample_cv
->u32
) : Operand(emit_extract_vector(ctx
, src2
, 0, v1
));
4865 std::vector
<Temp
> fmask_load_address
;
4866 for (unsigned i
= 0; i
< (is_array
? 3 : 2); i
++)
4867 fmask_load_address
.emplace_back(emit_extract_vector(ctx
, src0
, i
, v1
));
4869 Temp fmask_desc_ptr
= get_sampler_desc(ctx
, nir_instr_as_deref(instr
->src
[0].ssa
->parent_instr
), ACO_DESC_FMASK
, nullptr, false, false);
4870 coords
[count
] = adjust_sample_index_using_fmask(ctx
, is_array
, fmask_load_address
, sample_index
, fmask_desc_ptr
);
4872 coords
[count
] = emit_extract_vector(ctx
, src2
, 0, v1
);
4877 coords
[0] = emit_extract_vector(ctx
, src0
, 0, v1
);
4878 coords
.resize(coords
.size() + 1);
4879 coords
[1] = bld
.copy(bld
.def(v1
), Operand(0u));
4881 coords
[2] = emit_extract_vector(ctx
, src0
, 1, v1
);
4883 for (int i
= 0; i
< count
; i
++)
4884 coords
[i
] = emit_extract_vector(ctx
, src0
, i
, v1
);
4887 if (instr
->intrinsic
== nir_intrinsic_image_deref_load
||
4888 instr
->intrinsic
== nir_intrinsic_image_deref_store
) {
4889 int lod_index
= instr
->intrinsic
== nir_intrinsic_image_deref_load
? 3 : 4;
4890 bool level_zero
= nir_src_is_const(instr
->src
[lod_index
]) && nir_src_as_uint(instr
->src
[lod_index
]) == 0;
4893 coords
.emplace_back(get_ssa_temp(ctx
, instr
->src
[lod_index
].ssa
));
4896 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, coords
.size(), 1)};
4897 for (unsigned i
= 0; i
< coords
.size(); i
++)
4898 vec
->operands
[i
] = Operand(coords
[i
]);
4899 Temp res
= {ctx
->program
->allocateId(), RegClass(RegType::vgpr
, coords
.size())};
4900 vec
->definitions
[0] = Definition(res
);
4901 ctx
->block
->instructions
.emplace_back(std::move(vec
));
4906 void visit_image_load(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
4908 Builder
bld(ctx
->program
, ctx
->block
);
4909 const nir_variable
*var
= nir_deref_instr_get_variable(nir_instr_as_deref(instr
->src
[0].ssa
->parent_instr
));
4910 const struct glsl_type
*type
= glsl_without_array(var
->type
);
4911 const enum glsl_sampler_dim dim
= glsl_get_sampler_dim(type
);
4912 bool is_array
= glsl_sampler_type_is_array(type
);
4913 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
4915 if (dim
== GLSL_SAMPLER_DIM_BUF
) {
4916 unsigned mask
= nir_ssa_def_components_read(&instr
->dest
.ssa
);
4917 unsigned num_channels
= util_last_bit(mask
);
4918 Temp rsrc
= get_sampler_desc(ctx
, nir_instr_as_deref(instr
->src
[0].ssa
->parent_instr
), ACO_DESC_BUFFER
, nullptr, true, true);
4919 Temp vindex
= emit_extract_vector(ctx
, get_ssa_temp(ctx
, instr
->src
[1].ssa
), 0, v1
);
4922 switch (num_channels
) {
4924 opcode
= aco_opcode::buffer_load_format_x
;
4927 opcode
= aco_opcode::buffer_load_format_xy
;
4930 opcode
= aco_opcode::buffer_load_format_xyz
;
4933 opcode
= aco_opcode::buffer_load_format_xyzw
;
4936 unreachable(">4 channel buffer image load");
4938 aco_ptr
<MUBUF_instruction
> load
{create_instruction
<MUBUF_instruction
>(opcode
, Format::MUBUF
, 3, 1)};
4939 load
->operands
[0] = Operand(rsrc
);
4940 load
->operands
[1] = Operand(vindex
);
4941 load
->operands
[2] = Operand((uint32_t) 0);
4943 if (num_channels
== instr
->dest
.ssa
.num_components
&& dst
.type() == RegType::vgpr
)
4946 tmp
= {ctx
->program
->allocateId(), RegClass(RegType::vgpr
, num_channels
)};
4947 load
->definitions
[0] = Definition(tmp
);
4949 load
->glc
= var
->data
.access
& (ACCESS_VOLATILE
| ACCESS_COHERENT
);
4950 load
->dlc
= load
->glc
&& ctx
->options
->chip_class
>= GFX10
;
4951 load
->barrier
= barrier_image
;
4952 ctx
->block
->instructions
.emplace_back(std::move(load
));
4954 expand_vector(ctx
, tmp
, dst
, instr
->dest
.ssa
.num_components
, (1 << num_channels
) - 1);
4958 Temp coords
= get_image_coords(ctx
, instr
, type
);
4959 Temp resource
= get_sampler_desc(ctx
, nir_instr_as_deref(instr
->src
[0].ssa
->parent_instr
), ACO_DESC_IMAGE
, nullptr, true, true);
4961 unsigned dmask
= nir_ssa_def_components_read(&instr
->dest
.ssa
);
4962 unsigned num_components
= util_bitcount(dmask
);
4964 if (num_components
== instr
->dest
.ssa
.num_components
&& dst
.type() == RegType::vgpr
)
4967 tmp
= {ctx
->program
->allocateId(), RegClass(RegType::vgpr
, num_components
)};
4969 bool level_zero
= nir_src_is_const(instr
->src
[3]) && nir_src_as_uint(instr
->src
[3]) == 0;
4970 aco_opcode opcode
= level_zero
? aco_opcode::image_load
: aco_opcode::image_load_mip
;
4972 aco_ptr
<MIMG_instruction
> load
{create_instruction
<MIMG_instruction
>(opcode
, Format::MIMG
, 3, 1)};
4973 load
->operands
[0] = Operand(resource
);
4974 load
->operands
[1] = Operand(s4
); /* no sampler */
4975 load
->operands
[2] = Operand(coords
);
4976 load
->definitions
[0] = Definition(tmp
);
4977 load
->glc
= var
->data
.access
& (ACCESS_VOLATILE
| ACCESS_COHERENT
) ? 1 : 0;
4978 load
->dlc
= load
->glc
&& ctx
->options
->chip_class
>= GFX10
;
4979 load
->dim
= ac_get_image_dim(ctx
->options
->chip_class
, dim
, is_array
);
4980 load
->dmask
= dmask
;
4982 load
->da
= should_declare_array(ctx
, dim
, glsl_sampler_type_is_array(type
));
4983 load
->barrier
= barrier_image
;
4984 ctx
->block
->instructions
.emplace_back(std::move(load
));
4986 expand_vector(ctx
, tmp
, dst
, instr
->dest
.ssa
.num_components
, dmask
);
4990 void visit_image_store(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
4992 const nir_variable
*var
= nir_deref_instr_get_variable(nir_instr_as_deref(instr
->src
[0].ssa
->parent_instr
));
4993 const struct glsl_type
*type
= glsl_without_array(var
->type
);
4994 const enum glsl_sampler_dim dim
= glsl_get_sampler_dim(type
);
4995 bool is_array
= glsl_sampler_type_is_array(type
);
4996 Temp data
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[3].ssa
));
4998 bool glc
= ctx
->options
->chip_class
== GFX6
|| var
->data
.access
& (ACCESS_VOLATILE
| ACCESS_COHERENT
| ACCESS_NON_READABLE
) ? 1 : 0;
5000 if (dim
== GLSL_SAMPLER_DIM_BUF
) {
5001 Temp rsrc
= get_sampler_desc(ctx
, nir_instr_as_deref(instr
->src
[0].ssa
->parent_instr
), ACO_DESC_BUFFER
, nullptr, true, true);
5002 Temp vindex
= emit_extract_vector(ctx
, get_ssa_temp(ctx
, instr
->src
[1].ssa
), 0, v1
);
5004 switch (data
.size()) {
5006 opcode
= aco_opcode::buffer_store_format_x
;
5009 opcode
= aco_opcode::buffer_store_format_xy
;
5012 opcode
= aco_opcode::buffer_store_format_xyz
;
5015 opcode
= aco_opcode::buffer_store_format_xyzw
;
5018 unreachable(">4 channel buffer image store");
5020 aco_ptr
<MUBUF_instruction
> store
{create_instruction
<MUBUF_instruction
>(opcode
, Format::MUBUF
, 4, 0)};
5021 store
->operands
[0] = Operand(rsrc
);
5022 store
->operands
[1] = Operand(vindex
);
5023 store
->operands
[2] = Operand((uint32_t) 0);
5024 store
->operands
[3] = Operand(data
);
5025 store
->idxen
= true;
5028 store
->disable_wqm
= true;
5029 store
->barrier
= barrier_image
;
5030 ctx
->program
->needs_exact
= true;
5031 ctx
->block
->instructions
.emplace_back(std::move(store
));
5035 assert(data
.type() == RegType::vgpr
);
5036 Temp coords
= get_image_coords(ctx
, instr
, type
);
5037 Temp resource
= get_sampler_desc(ctx
, nir_instr_as_deref(instr
->src
[0].ssa
->parent_instr
), ACO_DESC_IMAGE
, nullptr, true, true);
5039 bool level_zero
= nir_src_is_const(instr
->src
[4]) && nir_src_as_uint(instr
->src
[4]) == 0;
5040 aco_opcode opcode
= level_zero
? aco_opcode::image_store
: aco_opcode::image_store_mip
;
5042 aco_ptr
<MIMG_instruction
> store
{create_instruction
<MIMG_instruction
>(opcode
, Format::MIMG
, 3, 0)};
5043 store
->operands
[0] = Operand(resource
);
5044 store
->operands
[1] = Operand(data
);
5045 store
->operands
[2] = Operand(coords
);
5048 store
->dim
= ac_get_image_dim(ctx
->options
->chip_class
, dim
, is_array
);
5049 store
->dmask
= (1 << data
.size()) - 1;
5051 store
->da
= should_declare_array(ctx
, dim
, glsl_sampler_type_is_array(type
));
5052 store
->disable_wqm
= true;
5053 store
->barrier
= barrier_image
;
5054 ctx
->program
->needs_exact
= true;
5055 ctx
->block
->instructions
.emplace_back(std::move(store
));
5059 void visit_image_atomic(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
5061 /* return the previous value if dest is ever used */
5062 bool return_previous
= false;
5063 nir_foreach_use_safe(use_src
, &instr
->dest
.ssa
) {
5064 return_previous
= true;
5067 nir_foreach_if_use_safe(use_src
, &instr
->dest
.ssa
) {
5068 return_previous
= true;
5072 const nir_variable
*var
= nir_deref_instr_get_variable(nir_instr_as_deref(instr
->src
[0].ssa
->parent_instr
));
5073 const struct glsl_type
*type
= glsl_without_array(var
->type
);
5074 const enum glsl_sampler_dim dim
= glsl_get_sampler_dim(type
);
5075 bool is_array
= glsl_sampler_type_is_array(type
);
5076 Builder
bld(ctx
->program
, ctx
->block
);
5078 Temp data
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[3].ssa
));
5079 assert(data
.size() == 1 && "64bit ssbo atomics not yet implemented.");
5081 if (instr
->intrinsic
== nir_intrinsic_image_deref_atomic_comp_swap
)
5082 data
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), get_ssa_temp(ctx
, instr
->src
[4].ssa
), data
);
5084 aco_opcode buf_op
, image_op
;
5085 switch (instr
->intrinsic
) {
5086 case nir_intrinsic_image_deref_atomic_add
:
5087 buf_op
= aco_opcode::buffer_atomic_add
;
5088 image_op
= aco_opcode::image_atomic_add
;
5090 case nir_intrinsic_image_deref_atomic_umin
:
5091 buf_op
= aco_opcode::buffer_atomic_umin
;
5092 image_op
= aco_opcode::image_atomic_umin
;
5094 case nir_intrinsic_image_deref_atomic_imin
:
5095 buf_op
= aco_opcode::buffer_atomic_smin
;
5096 image_op
= aco_opcode::image_atomic_smin
;
5098 case nir_intrinsic_image_deref_atomic_umax
:
5099 buf_op
= aco_opcode::buffer_atomic_umax
;
5100 image_op
= aco_opcode::image_atomic_umax
;
5102 case nir_intrinsic_image_deref_atomic_imax
:
5103 buf_op
= aco_opcode::buffer_atomic_smax
;
5104 image_op
= aco_opcode::image_atomic_smax
;
5106 case nir_intrinsic_image_deref_atomic_and
:
5107 buf_op
= aco_opcode::buffer_atomic_and
;
5108 image_op
= aco_opcode::image_atomic_and
;
5110 case nir_intrinsic_image_deref_atomic_or
:
5111 buf_op
= aco_opcode::buffer_atomic_or
;
5112 image_op
= aco_opcode::image_atomic_or
;
5114 case nir_intrinsic_image_deref_atomic_xor
:
5115 buf_op
= aco_opcode::buffer_atomic_xor
;
5116 image_op
= aco_opcode::image_atomic_xor
;
5118 case nir_intrinsic_image_deref_atomic_exchange
:
5119 buf_op
= aco_opcode::buffer_atomic_swap
;
5120 image_op
= aco_opcode::image_atomic_swap
;
5122 case nir_intrinsic_image_deref_atomic_comp_swap
:
5123 buf_op
= aco_opcode::buffer_atomic_cmpswap
;
5124 image_op
= aco_opcode::image_atomic_cmpswap
;
5127 unreachable("visit_image_atomic should only be called with nir_intrinsic_image_deref_atomic_* instructions.");
5130 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
5132 if (dim
== GLSL_SAMPLER_DIM_BUF
) {
5133 Temp vindex
= emit_extract_vector(ctx
, get_ssa_temp(ctx
, instr
->src
[1].ssa
), 0, v1
);
5134 Temp resource
= get_sampler_desc(ctx
, nir_instr_as_deref(instr
->src
[0].ssa
->parent_instr
), ACO_DESC_BUFFER
, nullptr, true, true);
5135 //assert(ctx->options->chip_class < GFX9 && "GFX9 stride size workaround not yet implemented.");
5136 aco_ptr
<MUBUF_instruction
> mubuf
{create_instruction
<MUBUF_instruction
>(buf_op
, Format::MUBUF
, 4, return_previous
? 1 : 0)};
5137 mubuf
->operands
[0] = Operand(resource
);
5138 mubuf
->operands
[1] = Operand(vindex
);
5139 mubuf
->operands
[2] = Operand((uint32_t)0);
5140 mubuf
->operands
[3] = Operand(data
);
5141 if (return_previous
)
5142 mubuf
->definitions
[0] = Definition(dst
);
5144 mubuf
->idxen
= true;
5145 mubuf
->glc
= return_previous
;
5146 mubuf
->dlc
= false; /* Not needed for atomics */
5147 mubuf
->disable_wqm
= true;
5148 mubuf
->barrier
= barrier_image
;
5149 ctx
->program
->needs_exact
= true;
5150 ctx
->block
->instructions
.emplace_back(std::move(mubuf
));
5154 Temp coords
= get_image_coords(ctx
, instr
, type
);
5155 Temp resource
= get_sampler_desc(ctx
, nir_instr_as_deref(instr
->src
[0].ssa
->parent_instr
), ACO_DESC_IMAGE
, nullptr, true, true);
5156 aco_ptr
<MIMG_instruction
> mimg
{create_instruction
<MIMG_instruction
>(image_op
, Format::MIMG
, 3, return_previous
? 1 : 0)};
5157 mimg
->operands
[0] = Operand(resource
);
5158 mimg
->operands
[1] = Operand(data
);
5159 mimg
->operands
[2] = Operand(coords
);
5160 if (return_previous
)
5161 mimg
->definitions
[0] = Definition(dst
);
5162 mimg
->glc
= return_previous
;
5163 mimg
->dlc
= false; /* Not needed for atomics */
5164 mimg
->dim
= ac_get_image_dim(ctx
->options
->chip_class
, dim
, is_array
);
5165 mimg
->dmask
= (1 << data
.size()) - 1;
5167 mimg
->da
= should_declare_array(ctx
, dim
, glsl_sampler_type_is_array(type
));
5168 mimg
->disable_wqm
= true;
5169 mimg
->barrier
= barrier_image
;
5170 ctx
->program
->needs_exact
= true;
5171 ctx
->block
->instructions
.emplace_back(std::move(mimg
));
5175 void get_buffer_size(isel_context
*ctx
, Temp desc
, Temp dst
, bool in_elements
)
5177 if (in_elements
&& ctx
->options
->chip_class
== GFX8
) {
5178 /* we only have to divide by 1, 2, 4, 8, 12 or 16 */
5179 Builder
bld(ctx
->program
, ctx
->block
);
5181 Temp size
= emit_extract_vector(ctx
, desc
, 2, s1
);
5183 Temp size_div3
= bld
.vop3(aco_opcode::v_mul_hi_u32
, bld
.def(v1
), bld
.copy(bld
.def(v1
), Operand(0xaaaaaaabu
)), size
);
5184 size_div3
= bld
.sop2(aco_opcode::s_lshr_b32
, bld
.def(s1
), bld
.as_uniform(size_div3
), Operand(1u));
5186 Temp stride
= emit_extract_vector(ctx
, desc
, 1, s1
);
5187 stride
= bld
.sop2(aco_opcode::s_bfe_u32
, bld
.def(s1
), bld
.def(s1
, scc
), stride
, Operand((5u << 16) | 16u));
5189 Temp is12
= bld
.sopc(aco_opcode::s_cmp_eq_i32
, bld
.def(s1
, scc
), stride
, Operand(12u));
5190 size
= bld
.sop2(aco_opcode::s_cselect_b32
, bld
.def(s1
), size_div3
, size
, bld
.scc(is12
));
5192 Temp shr_dst
= dst
.type() == RegType::vgpr
? bld
.tmp(s1
) : dst
;
5193 bld
.sop2(aco_opcode::s_lshr_b32
, Definition(shr_dst
), bld
.def(s1
, scc
),
5194 size
, bld
.sop1(aco_opcode::s_ff1_i32_b32
, bld
.def(s1
), stride
));
5195 if (dst
.type() == RegType::vgpr
)
5196 bld
.copy(Definition(dst
), shr_dst
);
5198 /* TODO: we can probably calculate this faster with v_skip when stride != 12 */
5200 emit_extract_vector(ctx
, desc
, 2, dst
);
5204 void visit_image_size(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
5206 const nir_variable
*var
= nir_deref_instr_get_variable(nir_instr_as_deref(instr
->src
[0].ssa
->parent_instr
));
5207 const struct glsl_type
*type
= glsl_without_array(var
->type
);
5208 const enum glsl_sampler_dim dim
= glsl_get_sampler_dim(type
);
5209 bool is_array
= glsl_sampler_type_is_array(type
);
5210 Builder
bld(ctx
->program
, ctx
->block
);
5212 if (glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_BUF
) {
5213 Temp desc
= get_sampler_desc(ctx
, nir_instr_as_deref(instr
->src
[0].ssa
->parent_instr
), ACO_DESC_BUFFER
, NULL
, true, false);
5214 return get_buffer_size(ctx
, desc
, get_ssa_temp(ctx
, &instr
->dest
.ssa
), true);
5218 Temp lod
= bld
.vop1(aco_opcode::v_mov_b32
, bld
.def(v1
), Operand(0u));
5221 Temp resource
= get_sampler_desc(ctx
, nir_instr_as_deref(instr
->src
[0].ssa
->parent_instr
), ACO_DESC_IMAGE
, NULL
, true, false);
5223 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
5225 aco_ptr
<MIMG_instruction
> mimg
{create_instruction
<MIMG_instruction
>(aco_opcode::image_get_resinfo
, Format::MIMG
, 3, 1)};
5226 mimg
->operands
[0] = Operand(resource
);
5227 mimg
->operands
[1] = Operand(s4
); /* no sampler */
5228 mimg
->operands
[2] = Operand(lod
);
5229 uint8_t& dmask
= mimg
->dmask
;
5230 mimg
->dim
= ac_get_image_dim(ctx
->options
->chip_class
, dim
, is_array
);
5231 mimg
->dmask
= (1 << instr
->dest
.ssa
.num_components
) - 1;
5232 mimg
->da
= glsl_sampler_type_is_array(type
);
5233 mimg
->can_reorder
= true;
5234 Definition
& def
= mimg
->definitions
[0];
5235 ctx
->block
->instructions
.emplace_back(std::move(mimg
));
5237 if (glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_CUBE
&&
5238 glsl_sampler_type_is_array(type
)) {
5240 assert(instr
->dest
.ssa
.num_components
== 3);
5241 Temp tmp
= {ctx
->program
->allocateId(), v3
};
5242 def
= Definition(tmp
);
5243 emit_split_vector(ctx
, tmp
, 3);
5245 /* divide 3rd value by 6 by multiplying with magic number */
5246 Temp c
= bld
.copy(bld
.def(s1
), Operand((uint32_t) 0x2AAAAAAB));
5247 Temp by_6
= bld
.vop3(aco_opcode::v_mul_hi_i32
, bld
.def(v1
), emit_extract_vector(ctx
, tmp
, 2, v1
), c
);
5249 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
),
5250 emit_extract_vector(ctx
, tmp
, 0, v1
),
5251 emit_extract_vector(ctx
, tmp
, 1, v1
),
5254 } else if (ctx
->options
->chip_class
== GFX9
&&
5255 glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_1D
&&
5256 glsl_sampler_type_is_array(type
)) {
5257 assert(instr
->dest
.ssa
.num_components
== 2);
5258 def
= Definition(dst
);
5261 def
= Definition(dst
);
5264 emit_split_vector(ctx
, dst
, instr
->dest
.ssa
.num_components
);
5267 void visit_load_ssbo(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
5269 Builder
bld(ctx
->program
, ctx
->block
);
5270 unsigned num_components
= instr
->num_components
;
5272 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
5273 Temp rsrc
= convert_pointer_to_64_bit(ctx
, get_ssa_temp(ctx
, instr
->src
[0].ssa
));
5274 rsrc
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), rsrc
, Operand(0u));
5276 bool glc
= nir_intrinsic_access(instr
) & (ACCESS_VOLATILE
| ACCESS_COHERENT
);
5277 load_buffer(ctx
, num_components
, dst
, rsrc
, get_ssa_temp(ctx
, instr
->src
[1].ssa
), glc
, false);
5280 void visit_store_ssbo(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
5282 Builder
bld(ctx
->program
, ctx
->block
);
5283 Temp data
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
5284 unsigned elem_size_bytes
= instr
->src
[0].ssa
->bit_size
/ 8;
5285 unsigned writemask
= nir_intrinsic_write_mask(instr
);
5286 Temp offset
= get_ssa_temp(ctx
, instr
->src
[2].ssa
);
5288 Temp rsrc
= convert_pointer_to_64_bit(ctx
, get_ssa_temp(ctx
, instr
->src
[1].ssa
));
5289 rsrc
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), rsrc
, Operand(0u));
5291 bool smem
= !ctx
->divergent_vals
[instr
->src
[2].ssa
->index
] &&
5292 ctx
->options
->chip_class
>= GFX8
;
5294 offset
= bld
.as_uniform(offset
);
5295 bool smem_nonfs
= smem
&& ctx
->stage
!= fragment_fs
;
5299 u_bit_scan_consecutive_range(&writemask
, &start
, &count
);
5300 if (count
== 3 && (smem
|| ctx
->options
->chip_class
== GFX6
)) {
5301 /* GFX6 doesn't support storing vec3, split it. */
5302 writemask
|= 1u << (start
+ 2);
5305 int num_bytes
= count
* elem_size_bytes
;
5307 if (num_bytes
> 16) {
5308 assert(elem_size_bytes
== 8);
5309 writemask
|= (((count
- 2) << 1) - 1) << (start
+ 2);
5314 // TODO: check alignment of sub-dword stores
5315 // TODO: split 3 bytes. there is no store instruction for that
5318 if (count
!= instr
->num_components
) {
5319 emit_split_vector(ctx
, data
, instr
->num_components
);
5320 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, count
, 1)};
5321 for (int i
= 0; i
< count
; i
++) {
5322 Temp elem
= emit_extract_vector(ctx
, data
, start
+ i
, RegClass(data
.type(), elem_size_bytes
/ 4));
5323 vec
->operands
[i
] = Operand(smem_nonfs
? bld
.as_uniform(elem
) : elem
);
5325 write_data
= bld
.tmp(!smem
? RegType::vgpr
: smem_nonfs
? RegType::sgpr
: data
.type(), count
* elem_size_bytes
/ 4);
5326 vec
->definitions
[0] = Definition(write_data
);
5327 ctx
->block
->instructions
.emplace_back(std::move(vec
));
5328 } else if (!smem
&& data
.type() != RegType::vgpr
) {
5329 assert(num_bytes
% 4 == 0);
5330 write_data
= bld
.copy(bld
.def(RegType::vgpr
, num_bytes
/ 4), data
);
5331 } else if (smem_nonfs
&& data
.type() == RegType::vgpr
) {
5332 assert(num_bytes
% 4 == 0);
5333 write_data
= bld
.as_uniform(data
);
5338 aco_opcode vmem_op
, smem_op
;
5339 switch (num_bytes
) {
5341 vmem_op
= aco_opcode::buffer_store_dword
;
5342 smem_op
= aco_opcode::s_buffer_store_dword
;
5345 vmem_op
= aco_opcode::buffer_store_dwordx2
;
5346 smem_op
= aco_opcode::s_buffer_store_dwordx2
;
5349 vmem_op
= aco_opcode::buffer_store_dwordx3
;
5350 smem_op
= aco_opcode::last_opcode
;
5351 assert(!smem
&& ctx
->options
->chip_class
> GFX6
);
5354 vmem_op
= aco_opcode::buffer_store_dwordx4
;
5355 smem_op
= aco_opcode::s_buffer_store_dwordx4
;
5358 unreachable("Store SSBO not implemented for this size.");
5360 if (ctx
->stage
== fragment_fs
)
5361 smem_op
= aco_opcode::p_fs_buffer_store_smem
;
5364 aco_ptr
<SMEM_instruction
> store
{create_instruction
<SMEM_instruction
>(smem_op
, Format::SMEM
, 3, 0)};
5365 store
->operands
[0] = Operand(rsrc
);
5367 Temp off
= bld
.sop2(aco_opcode::s_add_i32
, bld
.def(s1
), bld
.def(s1
, scc
),
5368 offset
, Operand(start
* elem_size_bytes
));
5369 store
->operands
[1] = Operand(off
);
5371 store
->operands
[1] = Operand(offset
);
5373 if (smem_op
!= aco_opcode::p_fs_buffer_store_smem
)
5374 store
->operands
[1].setFixed(m0
);
5375 store
->operands
[2] = Operand(write_data
);
5376 store
->glc
= nir_intrinsic_access(instr
) & (ACCESS_VOLATILE
| ACCESS_COHERENT
| ACCESS_NON_READABLE
);
5378 store
->disable_wqm
= true;
5379 store
->barrier
= barrier_buffer
;
5380 ctx
->block
->instructions
.emplace_back(std::move(store
));
5381 ctx
->program
->wb_smem_l1_on_end
= true;
5382 if (smem_op
== aco_opcode::p_fs_buffer_store_smem
) {
5383 ctx
->block
->kind
|= block_kind_needs_lowering
;
5384 ctx
->program
->needs_exact
= true;
5387 aco_ptr
<MUBUF_instruction
> store
{create_instruction
<MUBUF_instruction
>(vmem_op
, Format::MUBUF
, 4, 0)};
5388 store
->operands
[0] = Operand(rsrc
);
5389 store
->operands
[1] = offset
.type() == RegType::vgpr
? Operand(offset
) : Operand(v1
);
5390 store
->operands
[2] = offset
.type() == RegType::sgpr
? Operand(offset
) : Operand((uint32_t) 0);
5391 store
->operands
[3] = Operand(write_data
);
5392 store
->offset
= start
* elem_size_bytes
;
5393 store
->offen
= (offset
.type() == RegType::vgpr
);
5394 store
->glc
= nir_intrinsic_access(instr
) & (ACCESS_VOLATILE
| ACCESS_COHERENT
| ACCESS_NON_READABLE
);
5396 store
->disable_wqm
= true;
5397 store
->barrier
= barrier_buffer
;
5398 ctx
->program
->needs_exact
= true;
5399 ctx
->block
->instructions
.emplace_back(std::move(store
));
5404 void visit_atomic_ssbo(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
5406 /* return the previous value if dest is ever used */
5407 bool return_previous
= false;
5408 nir_foreach_use_safe(use_src
, &instr
->dest
.ssa
) {
5409 return_previous
= true;
5412 nir_foreach_if_use_safe(use_src
, &instr
->dest
.ssa
) {
5413 return_previous
= true;
5417 Builder
bld(ctx
->program
, ctx
->block
);
5418 Temp data
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[2].ssa
));
5420 if (instr
->intrinsic
== nir_intrinsic_ssbo_atomic_comp_swap
)
5421 data
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(RegType::vgpr
, data
.size() * 2),
5422 get_ssa_temp(ctx
, instr
->src
[3].ssa
), data
);
5424 Temp offset
= get_ssa_temp(ctx
, instr
->src
[1].ssa
);
5425 Temp rsrc
= convert_pointer_to_64_bit(ctx
, get_ssa_temp(ctx
, instr
->src
[0].ssa
));
5426 rsrc
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), rsrc
, Operand(0u));
5428 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
5430 aco_opcode op32
, op64
;
5431 switch (instr
->intrinsic
) {
5432 case nir_intrinsic_ssbo_atomic_add
:
5433 op32
= aco_opcode::buffer_atomic_add
;
5434 op64
= aco_opcode::buffer_atomic_add_x2
;
5436 case nir_intrinsic_ssbo_atomic_imin
:
5437 op32
= aco_opcode::buffer_atomic_smin
;
5438 op64
= aco_opcode::buffer_atomic_smin_x2
;
5440 case nir_intrinsic_ssbo_atomic_umin
:
5441 op32
= aco_opcode::buffer_atomic_umin
;
5442 op64
= aco_opcode::buffer_atomic_umin_x2
;
5444 case nir_intrinsic_ssbo_atomic_imax
:
5445 op32
= aco_opcode::buffer_atomic_smax
;
5446 op64
= aco_opcode::buffer_atomic_smax_x2
;
5448 case nir_intrinsic_ssbo_atomic_umax
:
5449 op32
= aco_opcode::buffer_atomic_umax
;
5450 op64
= aco_opcode::buffer_atomic_umax_x2
;
5452 case nir_intrinsic_ssbo_atomic_and
:
5453 op32
= aco_opcode::buffer_atomic_and
;
5454 op64
= aco_opcode::buffer_atomic_and_x2
;
5456 case nir_intrinsic_ssbo_atomic_or
:
5457 op32
= aco_opcode::buffer_atomic_or
;
5458 op64
= aco_opcode::buffer_atomic_or_x2
;
5460 case nir_intrinsic_ssbo_atomic_xor
:
5461 op32
= aco_opcode::buffer_atomic_xor
;
5462 op64
= aco_opcode::buffer_atomic_xor_x2
;
5464 case nir_intrinsic_ssbo_atomic_exchange
:
5465 op32
= aco_opcode::buffer_atomic_swap
;
5466 op64
= aco_opcode::buffer_atomic_swap_x2
;
5468 case nir_intrinsic_ssbo_atomic_comp_swap
:
5469 op32
= aco_opcode::buffer_atomic_cmpswap
;
5470 op64
= aco_opcode::buffer_atomic_cmpswap_x2
;
5473 unreachable("visit_atomic_ssbo should only be called with nir_intrinsic_ssbo_atomic_* instructions.");
5475 aco_opcode op
= instr
->dest
.ssa
.bit_size
== 32 ? op32
: op64
;
5476 aco_ptr
<MUBUF_instruction
> mubuf
{create_instruction
<MUBUF_instruction
>(op
, Format::MUBUF
, 4, return_previous
? 1 : 0)};
5477 mubuf
->operands
[0] = Operand(rsrc
);
5478 mubuf
->operands
[1] = offset
.type() == RegType::vgpr
? Operand(offset
) : Operand(v1
);
5479 mubuf
->operands
[2] = offset
.type() == RegType::sgpr
? Operand(offset
) : Operand((uint32_t) 0);
5480 mubuf
->operands
[3] = Operand(data
);
5481 if (return_previous
)
5482 mubuf
->definitions
[0] = Definition(dst
);
5484 mubuf
->offen
= (offset
.type() == RegType::vgpr
);
5485 mubuf
->glc
= return_previous
;
5486 mubuf
->dlc
= false; /* Not needed for atomics */
5487 mubuf
->disable_wqm
= true;
5488 mubuf
->barrier
= barrier_buffer
;
5489 ctx
->program
->needs_exact
= true;
5490 ctx
->block
->instructions
.emplace_back(std::move(mubuf
));
5493 void visit_get_buffer_size(isel_context
*ctx
, nir_intrinsic_instr
*instr
) {
5495 Temp index
= convert_pointer_to_64_bit(ctx
, get_ssa_temp(ctx
, instr
->src
[0].ssa
));
5496 Builder
bld(ctx
->program
, ctx
->block
);
5497 Temp desc
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), index
, Operand(0u));
5498 get_buffer_size(ctx
, desc
, get_ssa_temp(ctx
, &instr
->dest
.ssa
), false);
5501 Temp
get_gfx6_global_rsrc(Builder
& bld
, Temp addr
)
5503 uint32_t rsrc_conf
= S_008F0C_NUM_FORMAT(V_008F0C_BUF_NUM_FORMAT_FLOAT
) |
5504 S_008F0C_DATA_FORMAT(V_008F0C_BUF_DATA_FORMAT_32
);
5506 if (addr
.type() == RegType::vgpr
)
5507 return bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s4
), Operand(0u), Operand(0u), Operand(-1u), Operand(rsrc_conf
));
5508 return bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s4
), addr
, Operand(-1u), Operand(rsrc_conf
));
5511 void visit_load_global(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
5513 Builder
bld(ctx
->program
, ctx
->block
);
5514 unsigned num_components
= instr
->num_components
;
5515 unsigned num_bytes
= num_components
* instr
->dest
.ssa
.bit_size
/ 8;
5517 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
5518 Temp addr
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
5520 bool glc
= nir_intrinsic_access(instr
) & (ACCESS_VOLATILE
| ACCESS_COHERENT
);
5521 bool dlc
= glc
&& ctx
->options
->chip_class
>= GFX10
;
5523 if (dst
.type() == RegType::vgpr
|| (glc
&& ctx
->options
->chip_class
< GFX8
)) {
5524 bool global
= ctx
->options
->chip_class
>= GFX9
;
5526 if (ctx
->options
->chip_class
>= GFX7
) {
5528 switch (num_bytes
) {
5530 op
= global
? aco_opcode::global_load_dword
: aco_opcode::flat_load_dword
;
5533 op
= global
? aco_opcode::global_load_dwordx2
: aco_opcode::flat_load_dwordx2
;
5536 op
= global
? aco_opcode::global_load_dwordx3
: aco_opcode::flat_load_dwordx3
;
5539 op
= global
? aco_opcode::global_load_dwordx4
: aco_opcode::flat_load_dwordx4
;
5542 unreachable("load_global not implemented for this size.");
5545 aco_ptr
<FLAT_instruction
> flat
{create_instruction
<FLAT_instruction
>(op
, global
? Format::GLOBAL
: Format::FLAT
, 2, 1)};
5546 flat
->operands
[0] = Operand(addr
);
5547 flat
->operands
[1] = Operand(s1
);
5550 flat
->barrier
= barrier_buffer
;
5552 if (dst
.type() == RegType::sgpr
) {
5553 Temp vec
= bld
.tmp(RegType::vgpr
, dst
.size());
5554 flat
->definitions
[0] = Definition(vec
);
5555 ctx
->block
->instructions
.emplace_back(std::move(flat
));
5556 bld
.pseudo(aco_opcode::p_as_uniform
, Definition(dst
), vec
);
5558 flat
->definitions
[0] = Definition(dst
);
5559 ctx
->block
->instructions
.emplace_back(std::move(flat
));
5561 emit_split_vector(ctx
, dst
, num_components
);
5563 assert(ctx
->options
->chip_class
== GFX6
);
5565 /* GFX6 doesn't support loading vec3, expand to vec4. */
5566 num_bytes
= num_bytes
== 12 ? 16 : num_bytes
;
5569 switch (num_bytes
) {
5571 op
= aco_opcode::buffer_load_dword
;
5574 op
= aco_opcode::buffer_load_dwordx2
;
5577 op
= aco_opcode::buffer_load_dwordx4
;
5580 unreachable("load_global not implemented for this size.");
5583 Temp rsrc
= get_gfx6_global_rsrc(bld
, addr
);
5585 aco_ptr
<MUBUF_instruction
> mubuf
{create_instruction
<MUBUF_instruction
>(op
, Format::MUBUF
, 3, 1)};
5586 mubuf
->operands
[0] = Operand(rsrc
);
5587 mubuf
->operands
[1] = addr
.type() == RegType::vgpr
? Operand(addr
) : Operand(v1
);
5588 mubuf
->operands
[2] = Operand(0u);
5592 mubuf
->addr64
= addr
.type() == RegType::vgpr
;
5593 mubuf
->disable_wqm
= false;
5594 mubuf
->barrier
= barrier_buffer
;
5595 aco_ptr
<Instruction
> instr
= std::move(mubuf
);
5598 if (dst
.size() == 3) {
5599 Temp vec
= bld
.tmp(v4
);
5600 instr
->definitions
[0] = Definition(vec
);
5601 bld
.insert(std::move(instr
));
5602 emit_split_vector(ctx
, vec
, 4);
5604 instr
.reset(create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, 3, 1));
5605 instr
->operands
[0] = Operand(emit_extract_vector(ctx
, vec
, 0, v1
));
5606 instr
->operands
[1] = Operand(emit_extract_vector(ctx
, vec
, 1, v1
));
5607 instr
->operands
[2] = Operand(emit_extract_vector(ctx
, vec
, 2, v1
));
5610 if (dst
.type() == RegType::sgpr
) {
5611 Temp vec
= bld
.tmp(RegType::vgpr
, dst
.size());
5612 instr
->definitions
[0] = Definition(vec
);
5613 bld
.insert(std::move(instr
));
5614 expand_vector(ctx
, vec
, dst
, num_components
, (1 << num_components
) - 1);
5615 bld
.pseudo(aco_opcode::p_as_uniform
, Definition(dst
), vec
);
5617 instr
->definitions
[0] = Definition(dst
);
5618 bld
.insert(std::move(instr
));
5619 emit_split_vector(ctx
, dst
, num_components
);
5623 switch (num_bytes
) {
5625 op
= aco_opcode::s_load_dword
;
5628 op
= aco_opcode::s_load_dwordx2
;
5632 op
= aco_opcode::s_load_dwordx4
;
5635 unreachable("load_global not implemented for this size.");
5637 aco_ptr
<SMEM_instruction
> load
{create_instruction
<SMEM_instruction
>(op
, Format::SMEM
, 2, 1)};
5638 load
->operands
[0] = Operand(addr
);
5639 load
->operands
[1] = Operand(0u);
5640 load
->definitions
[0] = Definition(dst
);
5643 load
->barrier
= barrier_buffer
;
5644 assert(ctx
->options
->chip_class
>= GFX8
|| !glc
);
5646 if (dst
.size() == 3) {
5648 Temp vec
= bld
.tmp(s4
);
5649 load
->definitions
[0] = Definition(vec
);
5650 ctx
->block
->instructions
.emplace_back(std::move(load
));
5651 emit_split_vector(ctx
, vec
, 4);
5653 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
),
5654 emit_extract_vector(ctx
, vec
, 0, s1
),
5655 emit_extract_vector(ctx
, vec
, 1, s1
),
5656 emit_extract_vector(ctx
, vec
, 2, s1
));
5658 ctx
->block
->instructions
.emplace_back(std::move(load
));
5663 void visit_store_global(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
5665 Builder
bld(ctx
->program
, ctx
->block
);
5666 unsigned elem_size_bytes
= instr
->src
[0].ssa
->bit_size
/ 8;
5668 Temp data
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[0].ssa
));
5669 Temp addr
= get_ssa_temp(ctx
, instr
->src
[1].ssa
);
5671 if (ctx
->options
->chip_class
>= GFX7
)
5672 addr
= as_vgpr(ctx
, addr
);
5674 unsigned writemask
= nir_intrinsic_write_mask(instr
);
5677 u_bit_scan_consecutive_range(&writemask
, &start
, &count
);
5678 if (count
== 3 && ctx
->options
->chip_class
== GFX6
) {
5679 /* GFX6 doesn't support storing vec3, split it. */
5680 writemask
|= 1u << (start
+ 2);
5683 unsigned num_bytes
= count
* elem_size_bytes
;
5685 Temp write_data
= data
;
5686 if (count
!= instr
->num_components
) {
5687 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, count
, 1)};
5688 for (int i
= 0; i
< count
; i
++)
5689 vec
->operands
[i
] = Operand(emit_extract_vector(ctx
, data
, start
+ i
, v1
));
5690 write_data
= bld
.tmp(RegType::vgpr
, count
);
5691 vec
->definitions
[0] = Definition(write_data
);
5692 ctx
->block
->instructions
.emplace_back(std::move(vec
));
5695 bool glc
= nir_intrinsic_access(instr
) & (ACCESS_VOLATILE
| ACCESS_COHERENT
| ACCESS_NON_READABLE
);
5696 unsigned offset
= start
* elem_size_bytes
;
5698 if (ctx
->options
->chip_class
>= GFX7
) {
5699 if (offset
> 0 && ctx
->options
->chip_class
< GFX9
) {
5700 Temp addr0
= bld
.tmp(v1
), addr1
= bld
.tmp(v1
);
5701 Temp new_addr0
= bld
.tmp(v1
), new_addr1
= bld
.tmp(v1
);
5702 Temp carry
= bld
.tmp(bld
.lm
);
5703 bld
.pseudo(aco_opcode::p_split_vector
, Definition(addr0
), Definition(addr1
), addr
);
5705 bld
.vop2(aco_opcode::v_add_co_u32
, Definition(new_addr0
), bld
.hint_vcc(Definition(carry
)),
5706 Operand(offset
), addr0
);
5707 bld
.vop2(aco_opcode::v_addc_co_u32
, Definition(new_addr1
), bld
.def(bld
.lm
),
5709 carry
).def(1).setHint(vcc
);
5711 addr
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), new_addr0
, new_addr1
);
5716 bool global
= ctx
->options
->chip_class
>= GFX9
;
5718 switch (num_bytes
) {
5720 op
= global
? aco_opcode::global_store_dword
: aco_opcode::flat_store_dword
;
5723 op
= global
? aco_opcode::global_store_dwordx2
: aco_opcode::flat_store_dwordx2
;
5726 op
= global
? aco_opcode::global_store_dwordx3
: aco_opcode::flat_store_dwordx3
;
5729 op
= global
? aco_opcode::global_store_dwordx4
: aco_opcode::flat_store_dwordx4
;
5732 unreachable("store_global not implemented for this size.");
5735 aco_ptr
<FLAT_instruction
> flat
{create_instruction
<FLAT_instruction
>(op
, global
? Format::GLOBAL
: Format::FLAT
, 3, 0)};
5736 flat
->operands
[0] = Operand(addr
);
5737 flat
->operands
[1] = Operand(s1
);
5738 flat
->operands
[2] = Operand(data
);
5741 flat
->offset
= offset
;
5742 flat
->disable_wqm
= true;
5743 flat
->barrier
= barrier_buffer
;
5744 ctx
->program
->needs_exact
= true;
5745 ctx
->block
->instructions
.emplace_back(std::move(flat
));
5747 assert(ctx
->options
->chip_class
== GFX6
);
5750 switch (num_bytes
) {
5752 op
= aco_opcode::buffer_store_dword
;
5755 op
= aco_opcode::buffer_store_dwordx2
;
5758 op
= aco_opcode::buffer_store_dwordx4
;
5761 unreachable("store_global not implemented for this size.");
5764 Temp rsrc
= get_gfx6_global_rsrc(bld
, addr
);
5766 aco_ptr
<MUBUF_instruction
> mubuf
{create_instruction
<MUBUF_instruction
>(op
, Format::MUBUF
, 4, 0)};
5767 mubuf
->operands
[0] = Operand(rsrc
);
5768 mubuf
->operands
[1] = addr
.type() == RegType::vgpr
? Operand(addr
) : Operand(v1
);
5769 mubuf
->operands
[2] = Operand(0u);
5770 mubuf
->operands
[3] = Operand(write_data
);
5773 mubuf
->offset
= offset
;
5774 mubuf
->addr64
= addr
.type() == RegType::vgpr
;
5775 mubuf
->disable_wqm
= true;
5776 mubuf
->barrier
= barrier_buffer
;
5777 ctx
->program
->needs_exact
= true;
5778 ctx
->block
->instructions
.emplace_back(std::move(mubuf
));
5783 void visit_global_atomic(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
5785 /* return the previous value if dest is ever used */
5786 bool return_previous
= false;
5787 nir_foreach_use_safe(use_src
, &instr
->dest
.ssa
) {
5788 return_previous
= true;
5791 nir_foreach_if_use_safe(use_src
, &instr
->dest
.ssa
) {
5792 return_previous
= true;
5796 Builder
bld(ctx
->program
, ctx
->block
);
5797 Temp addr
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
5798 Temp data
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[1].ssa
));
5800 if (ctx
->options
->chip_class
>= GFX7
)
5801 addr
= as_vgpr(ctx
, addr
);
5803 if (instr
->intrinsic
== nir_intrinsic_global_atomic_comp_swap
)
5804 data
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(RegType::vgpr
, data
.size() * 2),
5805 get_ssa_temp(ctx
, instr
->src
[2].ssa
), data
);
5807 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
5809 aco_opcode op32
, op64
;
5811 if (ctx
->options
->chip_class
>= GFX7
) {
5812 bool global
= ctx
->options
->chip_class
>= GFX9
;
5813 switch (instr
->intrinsic
) {
5814 case nir_intrinsic_global_atomic_add
:
5815 op32
= global
? aco_opcode::global_atomic_add
: aco_opcode::flat_atomic_add
;
5816 op64
= global
? aco_opcode::global_atomic_add_x2
: aco_opcode::flat_atomic_add_x2
;
5818 case nir_intrinsic_global_atomic_imin
:
5819 op32
= global
? aco_opcode::global_atomic_smin
: aco_opcode::flat_atomic_smin
;
5820 op64
= global
? aco_opcode::global_atomic_smin_x2
: aco_opcode::flat_atomic_smin_x2
;
5822 case nir_intrinsic_global_atomic_umin
:
5823 op32
= global
? aco_opcode::global_atomic_umin
: aco_opcode::flat_atomic_umin
;
5824 op64
= global
? aco_opcode::global_atomic_umin_x2
: aco_opcode::flat_atomic_umin_x2
;
5826 case nir_intrinsic_global_atomic_imax
:
5827 op32
= global
? aco_opcode::global_atomic_smax
: aco_opcode::flat_atomic_smax
;
5828 op64
= global
? aco_opcode::global_atomic_smax_x2
: aco_opcode::flat_atomic_smax_x2
;
5830 case nir_intrinsic_global_atomic_umax
:
5831 op32
= global
? aco_opcode::global_atomic_umax
: aco_opcode::flat_atomic_umax
;
5832 op64
= global
? aco_opcode::global_atomic_umax_x2
: aco_opcode::flat_atomic_umax_x2
;
5834 case nir_intrinsic_global_atomic_and
:
5835 op32
= global
? aco_opcode::global_atomic_and
: aco_opcode::flat_atomic_and
;
5836 op64
= global
? aco_opcode::global_atomic_and_x2
: aco_opcode::flat_atomic_and_x2
;
5838 case nir_intrinsic_global_atomic_or
:
5839 op32
= global
? aco_opcode::global_atomic_or
: aco_opcode::flat_atomic_or
;
5840 op64
= global
? aco_opcode::global_atomic_or_x2
: aco_opcode::flat_atomic_or_x2
;
5842 case nir_intrinsic_global_atomic_xor
:
5843 op32
= global
? aco_opcode::global_atomic_xor
: aco_opcode::flat_atomic_xor
;
5844 op64
= global
? aco_opcode::global_atomic_xor_x2
: aco_opcode::flat_atomic_xor_x2
;
5846 case nir_intrinsic_global_atomic_exchange
:
5847 op32
= global
? aco_opcode::global_atomic_swap
: aco_opcode::flat_atomic_swap
;
5848 op64
= global
? aco_opcode::global_atomic_swap_x2
: aco_opcode::flat_atomic_swap_x2
;
5850 case nir_intrinsic_global_atomic_comp_swap
:
5851 op32
= global
? aco_opcode::global_atomic_cmpswap
: aco_opcode::flat_atomic_cmpswap
;
5852 op64
= global
? aco_opcode::global_atomic_cmpswap_x2
: aco_opcode::flat_atomic_cmpswap_x2
;
5855 unreachable("visit_atomic_global should only be called with nir_intrinsic_global_atomic_* instructions.");
5858 aco_opcode op
= instr
->dest
.ssa
.bit_size
== 32 ? op32
: op64
;
5859 aco_ptr
<FLAT_instruction
> flat
{create_instruction
<FLAT_instruction
>(op
, global
? Format::GLOBAL
: Format::FLAT
, 3, return_previous
? 1 : 0)};
5860 flat
->operands
[0] = Operand(addr
);
5861 flat
->operands
[1] = Operand(s1
);
5862 flat
->operands
[2] = Operand(data
);
5863 if (return_previous
)
5864 flat
->definitions
[0] = Definition(dst
);
5865 flat
->glc
= return_previous
;
5866 flat
->dlc
= false; /* Not needed for atomics */
5868 flat
->disable_wqm
= true;
5869 flat
->barrier
= barrier_buffer
;
5870 ctx
->program
->needs_exact
= true;
5871 ctx
->block
->instructions
.emplace_back(std::move(flat
));
5873 assert(ctx
->options
->chip_class
== GFX6
);
5875 switch (instr
->intrinsic
) {
5876 case nir_intrinsic_global_atomic_add
:
5877 op32
= aco_opcode::buffer_atomic_add
;
5878 op64
= aco_opcode::buffer_atomic_add_x2
;
5880 case nir_intrinsic_global_atomic_imin
:
5881 op32
= aco_opcode::buffer_atomic_smin
;
5882 op64
= aco_opcode::buffer_atomic_smin_x2
;
5884 case nir_intrinsic_global_atomic_umin
:
5885 op32
= aco_opcode::buffer_atomic_umin
;
5886 op64
= aco_opcode::buffer_atomic_umin_x2
;
5888 case nir_intrinsic_global_atomic_imax
:
5889 op32
= aco_opcode::buffer_atomic_smax
;
5890 op64
= aco_opcode::buffer_atomic_smax_x2
;
5892 case nir_intrinsic_global_atomic_umax
:
5893 op32
= aco_opcode::buffer_atomic_umax
;
5894 op64
= aco_opcode::buffer_atomic_umax_x2
;
5896 case nir_intrinsic_global_atomic_and
:
5897 op32
= aco_opcode::buffer_atomic_and
;
5898 op64
= aco_opcode::buffer_atomic_and_x2
;
5900 case nir_intrinsic_global_atomic_or
:
5901 op32
= aco_opcode::buffer_atomic_or
;
5902 op64
= aco_opcode::buffer_atomic_or_x2
;
5904 case nir_intrinsic_global_atomic_xor
:
5905 op32
= aco_opcode::buffer_atomic_xor
;
5906 op64
= aco_opcode::buffer_atomic_xor_x2
;
5908 case nir_intrinsic_global_atomic_exchange
:
5909 op32
= aco_opcode::buffer_atomic_swap
;
5910 op64
= aco_opcode::buffer_atomic_swap_x2
;
5912 case nir_intrinsic_global_atomic_comp_swap
:
5913 op32
= aco_opcode::buffer_atomic_cmpswap
;
5914 op64
= aco_opcode::buffer_atomic_cmpswap_x2
;
5917 unreachable("visit_atomic_global should only be called with nir_intrinsic_global_atomic_* instructions.");
5920 Temp rsrc
= get_gfx6_global_rsrc(bld
, addr
);
5922 aco_opcode op
= instr
->dest
.ssa
.bit_size
== 32 ? op32
: op64
;
5924 aco_ptr
<MUBUF_instruction
> mubuf
{create_instruction
<MUBUF_instruction
>(op
, Format::MUBUF
, 4, return_previous
? 1 : 0)};
5925 mubuf
->operands
[0] = Operand(rsrc
);
5926 mubuf
->operands
[1] = addr
.type() == RegType::vgpr
? Operand(addr
) : Operand(v1
);
5927 mubuf
->operands
[2] = Operand(0u);
5928 mubuf
->operands
[3] = Operand(data
);
5929 if (return_previous
)
5930 mubuf
->definitions
[0] = Definition(dst
);
5931 mubuf
->glc
= return_previous
;
5934 mubuf
->addr64
= addr
.type() == RegType::vgpr
;
5935 mubuf
->disable_wqm
= true;
5936 mubuf
->barrier
= barrier_buffer
;
5937 ctx
->program
->needs_exact
= true;
5938 ctx
->block
->instructions
.emplace_back(std::move(mubuf
));
5942 void emit_memory_barrier(isel_context
*ctx
, nir_intrinsic_instr
*instr
) {
5943 Builder
bld(ctx
->program
, ctx
->block
);
5944 switch(instr
->intrinsic
) {
5945 case nir_intrinsic_group_memory_barrier
:
5946 case nir_intrinsic_memory_barrier
:
5947 bld
.barrier(aco_opcode::p_memory_barrier_common
);
5949 case nir_intrinsic_memory_barrier_buffer
:
5950 bld
.barrier(aco_opcode::p_memory_barrier_buffer
);
5952 case nir_intrinsic_memory_barrier_image
:
5953 bld
.barrier(aco_opcode::p_memory_barrier_image
);
5955 case nir_intrinsic_memory_barrier_tcs_patch
:
5956 case nir_intrinsic_memory_barrier_shared
:
5957 bld
.barrier(aco_opcode::p_memory_barrier_shared
);
5960 unreachable("Unimplemented memory barrier intrinsic");
5965 void visit_load_shared(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
5967 // TODO: implement sparse reads using ds_read2_b32 and nir_ssa_def_components_read()
5968 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
5969 assert(instr
->dest
.ssa
.bit_size
>= 32 && "Bitsize not supported in load_shared.");
5970 Temp address
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[0].ssa
));
5971 Builder
bld(ctx
->program
, ctx
->block
);
5973 unsigned elem_size_bytes
= instr
->dest
.ssa
.bit_size
/ 8;
5974 unsigned align
= nir_intrinsic_align_mul(instr
) ? nir_intrinsic_align(instr
) : elem_size_bytes
;
5975 load_lds(ctx
, elem_size_bytes
, dst
, address
, nir_intrinsic_base(instr
), align
);
5978 void visit_store_shared(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
5980 unsigned writemask
= nir_intrinsic_write_mask(instr
);
5981 Temp data
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
5982 Temp address
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[1].ssa
));
5983 unsigned elem_size_bytes
= instr
->src
[0].ssa
->bit_size
/ 8;
5984 assert(elem_size_bytes
>= 4 && "Only 32bit & 64bit store_shared currently supported.");
5986 unsigned align
= nir_intrinsic_align_mul(instr
) ? nir_intrinsic_align(instr
) : elem_size_bytes
;
5987 store_lds(ctx
, elem_size_bytes
, data
, writemask
, address
, nir_intrinsic_base(instr
), align
);
5990 void visit_shared_atomic(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
5992 unsigned offset
= nir_intrinsic_base(instr
);
5993 Operand m
= load_lds_size_m0(ctx
);
5994 Temp data
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[1].ssa
));
5995 Temp address
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[0].ssa
));
5997 unsigned num_operands
= 3;
5998 aco_opcode op32
, op64
, op32_rtn
, op64_rtn
;
5999 switch(instr
->intrinsic
) {
6000 case nir_intrinsic_shared_atomic_add
:
6001 op32
= aco_opcode::ds_add_u32
;
6002 op64
= aco_opcode::ds_add_u64
;
6003 op32_rtn
= aco_opcode::ds_add_rtn_u32
;
6004 op64_rtn
= aco_opcode::ds_add_rtn_u64
;
6006 case nir_intrinsic_shared_atomic_imin
:
6007 op32
= aco_opcode::ds_min_i32
;
6008 op64
= aco_opcode::ds_min_i64
;
6009 op32_rtn
= aco_opcode::ds_min_rtn_i32
;
6010 op64_rtn
= aco_opcode::ds_min_rtn_i64
;
6012 case nir_intrinsic_shared_atomic_umin
:
6013 op32
= aco_opcode::ds_min_u32
;
6014 op64
= aco_opcode::ds_min_u64
;
6015 op32_rtn
= aco_opcode::ds_min_rtn_u32
;
6016 op64_rtn
= aco_opcode::ds_min_rtn_u64
;
6018 case nir_intrinsic_shared_atomic_imax
:
6019 op32
= aco_opcode::ds_max_i32
;
6020 op64
= aco_opcode::ds_max_i64
;
6021 op32_rtn
= aco_opcode::ds_max_rtn_i32
;
6022 op64_rtn
= aco_opcode::ds_max_rtn_i64
;
6024 case nir_intrinsic_shared_atomic_umax
:
6025 op32
= aco_opcode::ds_max_u32
;
6026 op64
= aco_opcode::ds_max_u64
;
6027 op32_rtn
= aco_opcode::ds_max_rtn_u32
;
6028 op64_rtn
= aco_opcode::ds_max_rtn_u64
;
6030 case nir_intrinsic_shared_atomic_and
:
6031 op32
= aco_opcode::ds_and_b32
;
6032 op64
= aco_opcode::ds_and_b64
;
6033 op32_rtn
= aco_opcode::ds_and_rtn_b32
;
6034 op64_rtn
= aco_opcode::ds_and_rtn_b64
;
6036 case nir_intrinsic_shared_atomic_or
:
6037 op32
= aco_opcode::ds_or_b32
;
6038 op64
= aco_opcode::ds_or_b64
;
6039 op32_rtn
= aco_opcode::ds_or_rtn_b32
;
6040 op64_rtn
= aco_opcode::ds_or_rtn_b64
;
6042 case nir_intrinsic_shared_atomic_xor
:
6043 op32
= aco_opcode::ds_xor_b32
;
6044 op64
= aco_opcode::ds_xor_b64
;
6045 op32_rtn
= aco_opcode::ds_xor_rtn_b32
;
6046 op64_rtn
= aco_opcode::ds_xor_rtn_b64
;
6048 case nir_intrinsic_shared_atomic_exchange
:
6049 op32
= aco_opcode::ds_write_b32
;
6050 op64
= aco_opcode::ds_write_b64
;
6051 op32_rtn
= aco_opcode::ds_wrxchg_rtn_b32
;
6052 op64_rtn
= aco_opcode::ds_wrxchg2_rtn_b64
;
6054 case nir_intrinsic_shared_atomic_comp_swap
:
6055 op32
= aco_opcode::ds_cmpst_b32
;
6056 op64
= aco_opcode::ds_cmpst_b64
;
6057 op32_rtn
= aco_opcode::ds_cmpst_rtn_b32
;
6058 op64_rtn
= aco_opcode::ds_cmpst_rtn_b64
;
6062 unreachable("Unhandled shared atomic intrinsic");
6065 /* return the previous value if dest is ever used */
6066 bool return_previous
= false;
6067 nir_foreach_use_safe(use_src
, &instr
->dest
.ssa
) {
6068 return_previous
= true;
6071 nir_foreach_if_use_safe(use_src
, &instr
->dest
.ssa
) {
6072 return_previous
= true;
6077 if (data
.size() == 1) {
6078 assert(instr
->dest
.ssa
.bit_size
== 32);
6079 op
= return_previous
? op32_rtn
: op32
;
6081 assert(instr
->dest
.ssa
.bit_size
== 64);
6082 op
= return_previous
? op64_rtn
: op64
;
6085 if (offset
> 65535) {
6086 Builder
bld(ctx
->program
, ctx
->block
);
6087 address
= bld
.vadd32(bld
.def(v1
), Operand(offset
), address
);
6091 aco_ptr
<DS_instruction
> ds
;
6092 ds
.reset(create_instruction
<DS_instruction
>(op
, Format::DS
, num_operands
, return_previous
? 1 : 0));
6093 ds
->operands
[0] = Operand(address
);
6094 ds
->operands
[1] = Operand(data
);
6095 if (num_operands
== 4)
6096 ds
->operands
[2] = Operand(get_ssa_temp(ctx
, instr
->src
[2].ssa
));
6097 ds
->operands
[num_operands
- 1] = m
;
6098 ds
->offset0
= offset
;
6099 if (return_previous
)
6100 ds
->definitions
[0] = Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
));
6101 ctx
->block
->instructions
.emplace_back(std::move(ds
));
6104 Temp
get_scratch_resource(isel_context
*ctx
)
6106 Builder
bld(ctx
->program
, ctx
->block
);
6107 Temp scratch_addr
= ctx
->program
->private_segment_buffer
;
6108 if (ctx
->stage
!= compute_cs
)
6109 scratch_addr
= bld
.smem(aco_opcode::s_load_dwordx2
, bld
.def(s2
), scratch_addr
, Operand(0u));
6111 uint32_t rsrc_conf
= S_008F0C_ADD_TID_ENABLE(1) |
6112 S_008F0C_INDEX_STRIDE(ctx
->program
->wave_size
== 64 ? 3 : 2);;
6114 if (ctx
->program
->chip_class
>= GFX10
) {
6115 rsrc_conf
|= S_008F0C_FORMAT(V_008F0C_IMG_FORMAT_32_FLOAT
) |
6116 S_008F0C_OOB_SELECT(V_008F0C_OOB_SELECT_RAW
) |
6117 S_008F0C_RESOURCE_LEVEL(1);
6118 } else if (ctx
->program
->chip_class
<= GFX7
) { /* dfmt modifies stride on GFX8/GFX9 when ADD_TID_EN=1 */
6119 rsrc_conf
|= S_008F0C_NUM_FORMAT(V_008F0C_BUF_NUM_FORMAT_FLOAT
) |
6120 S_008F0C_DATA_FORMAT(V_008F0C_BUF_DATA_FORMAT_32
);
6123 /* older generations need element size = 16 bytes. element size removed in GFX9 */
6124 if (ctx
->program
->chip_class
<= GFX8
)
6125 rsrc_conf
|= S_008F0C_ELEMENT_SIZE(3);
6127 return bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s4
), scratch_addr
, Operand(-1u), Operand(rsrc_conf
));
6130 void visit_load_scratch(isel_context
*ctx
, nir_intrinsic_instr
*instr
) {
6131 assert(instr
->dest
.ssa
.bit_size
== 32 || instr
->dest
.ssa
.bit_size
== 64);
6132 Builder
bld(ctx
->program
, ctx
->block
);
6133 Temp rsrc
= get_scratch_resource(ctx
);
6134 Temp offset
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[0].ssa
));
6135 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
6138 switch (dst
.size()) {
6140 op
= aco_opcode::buffer_load_dword
;
6143 op
= aco_opcode::buffer_load_dwordx2
;
6146 op
= aco_opcode::buffer_load_dwordx3
;
6149 op
= aco_opcode::buffer_load_dwordx4
;
6153 std::array
<Temp
,NIR_MAX_VEC_COMPONENTS
> elems
;
6154 Temp lower
= bld
.mubuf(aco_opcode::buffer_load_dwordx4
,
6155 bld
.def(v4
), rsrc
, offset
,
6156 ctx
->program
->scratch_offset
, 0, true);
6157 Temp upper
= bld
.mubuf(dst
.size() == 6 ? aco_opcode::buffer_load_dwordx2
:
6158 aco_opcode::buffer_load_dwordx4
,
6159 dst
.size() == 6 ? bld
.def(v2
) : bld
.def(v4
),
6160 rsrc
, offset
, ctx
->program
->scratch_offset
, 16, true);
6161 emit_split_vector(ctx
, lower
, 2);
6162 elems
[0] = emit_extract_vector(ctx
, lower
, 0, v2
);
6163 elems
[1] = emit_extract_vector(ctx
, lower
, 1, v2
);
6164 if (dst
.size() == 8) {
6165 emit_split_vector(ctx
, upper
, 2);
6166 elems
[2] = emit_extract_vector(ctx
, upper
, 0, v2
);
6167 elems
[3] = emit_extract_vector(ctx
, upper
, 1, v2
);
6172 aco_ptr
<Instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
,
6173 Format::PSEUDO
, dst
.size() / 2, 1)};
6174 for (unsigned i
= 0; i
< dst
.size() / 2; i
++)
6175 vec
->operands
[i
] = Operand(elems
[i
]);
6176 vec
->definitions
[0] = Definition(dst
);
6177 bld
.insert(std::move(vec
));
6178 ctx
->allocated_vec
.emplace(dst
.id(), elems
);
6182 unreachable("Wrong dst size for nir_intrinsic_load_scratch");
6185 bld
.mubuf(op
, Definition(dst
), rsrc
, offset
, ctx
->program
->scratch_offset
, 0, true);
6186 emit_split_vector(ctx
, dst
, instr
->num_components
);
6189 void visit_store_scratch(isel_context
*ctx
, nir_intrinsic_instr
*instr
) {
6190 assert(instr
->src
[0].ssa
->bit_size
== 32 || instr
->src
[0].ssa
->bit_size
== 64);
6191 Builder
bld(ctx
->program
, ctx
->block
);
6192 Temp rsrc
= get_scratch_resource(ctx
);
6193 Temp data
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[0].ssa
));
6194 Temp offset
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[1].ssa
));
6196 unsigned elem_size_bytes
= instr
->src
[0].ssa
->bit_size
/ 8;
6197 unsigned writemask
= nir_intrinsic_write_mask(instr
);
6201 u_bit_scan_consecutive_range(&writemask
, &start
, &count
);
6202 int num_bytes
= count
* elem_size_bytes
;
6204 if (num_bytes
> 16) {
6205 assert(elem_size_bytes
== 8);
6206 writemask
|= (((count
- 2) << 1) - 1) << (start
+ 2);
6211 // TODO: check alignment of sub-dword stores
6212 // TODO: split 3 bytes. there is no store instruction for that
6215 if (count
!= instr
->num_components
) {
6216 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, count
, 1)};
6217 for (int i
= 0; i
< count
; i
++) {
6218 Temp elem
= emit_extract_vector(ctx
, data
, start
+ i
, RegClass(RegType::vgpr
, elem_size_bytes
/ 4));
6219 vec
->operands
[i
] = Operand(elem
);
6221 write_data
= bld
.tmp(RegClass(RegType::vgpr
, count
* elem_size_bytes
/ 4));
6222 vec
->definitions
[0] = Definition(write_data
);
6223 ctx
->block
->instructions
.emplace_back(std::move(vec
));
6229 switch (num_bytes
) {
6231 op
= aco_opcode::buffer_store_dword
;
6234 op
= aco_opcode::buffer_store_dwordx2
;
6237 op
= aco_opcode::buffer_store_dwordx3
;
6240 op
= aco_opcode::buffer_store_dwordx4
;
6243 unreachable("Invalid data size for nir_intrinsic_store_scratch.");
6246 bld
.mubuf(op
, rsrc
, offset
, ctx
->program
->scratch_offset
, write_data
, start
* elem_size_bytes
, true);
6250 void visit_load_sample_mask_in(isel_context
*ctx
, nir_intrinsic_instr
*instr
) {
6251 uint8_t log2_ps_iter_samples
;
6252 if (ctx
->program
->info
->ps
.force_persample
) {
6253 log2_ps_iter_samples
=
6254 util_logbase2(ctx
->options
->key
.fs
.num_samples
);
6256 log2_ps_iter_samples
= ctx
->options
->key
.fs
.log2_ps_iter_samples
;
6259 /* The bit pattern matches that used by fixed function fragment
6261 static const unsigned ps_iter_masks
[] = {
6262 0xffff, /* not used */
6268 assert(log2_ps_iter_samples
< ARRAY_SIZE(ps_iter_masks
));
6270 Builder
bld(ctx
->program
, ctx
->block
);
6272 Temp sample_id
= bld
.vop3(aco_opcode::v_bfe_u32
, bld
.def(v1
),
6273 get_arg(ctx
, ctx
->args
->ac
.ancillary
), Operand(8u), Operand(4u));
6274 Temp ps_iter_mask
= bld
.vop1(aco_opcode::v_mov_b32
, bld
.def(v1
), Operand(ps_iter_masks
[log2_ps_iter_samples
]));
6275 Temp mask
= bld
.vop2(aco_opcode::v_lshlrev_b32
, bld
.def(v1
), sample_id
, ps_iter_mask
);
6276 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
6277 bld
.vop2(aco_opcode::v_and_b32
, Definition(dst
), mask
, get_arg(ctx
, ctx
->args
->ac
.sample_coverage
));
6280 void visit_emit_vertex_with_counter(isel_context
*ctx
, nir_intrinsic_instr
*instr
) {
6281 Builder
bld(ctx
->program
, ctx
->block
);
6283 unsigned stream
= nir_intrinsic_stream_id(instr
);
6284 Temp next_vertex
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[0].ssa
));
6285 next_vertex
= bld
.v_mul_imm(bld
.def(v1
), next_vertex
, 4u);
6286 nir_const_value
*next_vertex_cv
= nir_src_as_const_value(instr
->src
[0]);
6289 Temp gsvs_ring
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), ctx
->program
->private_segment_buffer
, Operand(RING_GSVS_GS
* 16u));
6291 unsigned num_components
=
6292 ctx
->program
->info
->gs
.num_stream_output_components
[stream
];
6293 assert(num_components
);
6295 unsigned stride
= 4u * num_components
* ctx
->shader
->info
.gs
.vertices_out
;
6296 unsigned stream_offset
= 0;
6297 for (unsigned i
= 0; i
< stream
; i
++) {
6298 unsigned prev_stride
= 4u * ctx
->program
->info
->gs
.num_stream_output_components
[i
] * ctx
->shader
->info
.gs
.vertices_out
;
6299 stream_offset
+= prev_stride
* ctx
->program
->wave_size
;
6302 /* Limit on the stride field for <= GFX7. */
6303 assert(stride
< (1 << 14));
6305 Temp gsvs_dwords
[4];
6306 for (unsigned i
= 0; i
< 4; i
++)
6307 gsvs_dwords
[i
] = bld
.tmp(s1
);
6308 bld
.pseudo(aco_opcode::p_split_vector
,
6309 Definition(gsvs_dwords
[0]),
6310 Definition(gsvs_dwords
[1]),
6311 Definition(gsvs_dwords
[2]),
6312 Definition(gsvs_dwords
[3]),
6315 if (stream_offset
) {
6316 Temp stream_offset_tmp
= bld
.copy(bld
.def(s1
), Operand(stream_offset
));
6318 Temp carry
= bld
.tmp(s1
);
6319 gsvs_dwords
[0] = bld
.sop2(aco_opcode::s_add_u32
, bld
.def(s1
), bld
.scc(Definition(carry
)), gsvs_dwords
[0], stream_offset_tmp
);
6320 gsvs_dwords
[1] = bld
.sop2(aco_opcode::s_addc_u32
, bld
.def(s1
), bld
.def(s1
, scc
), gsvs_dwords
[1], Operand(0u), bld
.scc(carry
));
6323 gsvs_dwords
[1] = bld
.sop2(aco_opcode::s_or_b32
, bld
.def(s1
), bld
.def(s1
, scc
), gsvs_dwords
[1], Operand(S_008F04_STRIDE(stride
)));
6324 gsvs_dwords
[2] = bld
.copy(bld
.def(s1
), Operand((uint32_t)ctx
->program
->wave_size
));
6326 gsvs_ring
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s4
),
6327 gsvs_dwords
[0], gsvs_dwords
[1], gsvs_dwords
[2], gsvs_dwords
[3]);
6329 unsigned offset
= 0;
6330 for (unsigned i
= 0; i
<= VARYING_SLOT_VAR31
; i
++) {
6331 if (ctx
->program
->info
->gs
.output_streams
[i
] != stream
)
6334 for (unsigned j
= 0; j
< 4; j
++) {
6335 if (!(ctx
->program
->info
->gs
.output_usage_mask
[i
] & (1 << j
)))
6338 if (ctx
->outputs
.mask
[i
] & (1 << j
)) {
6339 Operand vaddr_offset
= next_vertex_cv
? Operand(v1
) : Operand(next_vertex
);
6340 unsigned const_offset
= (offset
+ (next_vertex_cv
? next_vertex_cv
->u32
: 0u)) * 4u;
6341 if (const_offset
>= 4096u) {
6342 if (vaddr_offset
.isUndefined())
6343 vaddr_offset
= bld
.copy(bld
.def(v1
), Operand(const_offset
/ 4096u * 4096u));
6345 vaddr_offset
= bld
.vadd32(bld
.def(v1
), Operand(const_offset
/ 4096u * 4096u), vaddr_offset
);
6346 const_offset
%= 4096u;
6349 aco_ptr
<MTBUF_instruction
> mtbuf
{create_instruction
<MTBUF_instruction
>(aco_opcode::tbuffer_store_format_x
, Format::MTBUF
, 4, 0)};
6350 mtbuf
->operands
[0] = Operand(gsvs_ring
);
6351 mtbuf
->operands
[1] = vaddr_offset
;
6352 mtbuf
->operands
[2] = Operand(get_arg(ctx
, ctx
->args
->gs2vs_offset
));
6353 mtbuf
->operands
[3] = Operand(ctx
->outputs
.temps
[i
* 4u + j
]);
6354 mtbuf
->offen
= !vaddr_offset
.isUndefined();
6355 mtbuf
->dfmt
= V_008F0C_BUF_DATA_FORMAT_32
;
6356 mtbuf
->nfmt
= V_008F0C_BUF_NUM_FORMAT_UINT
;
6357 mtbuf
->offset
= const_offset
;
6360 mtbuf
->barrier
= barrier_gs_data
;
6361 mtbuf
->can_reorder
= true;
6362 bld
.insert(std::move(mtbuf
));
6365 offset
+= ctx
->shader
->info
.gs
.vertices_out
;
6368 /* outputs for the next vertex are undefined and keeping them around can
6369 * create invalid IR with control flow */
6370 ctx
->outputs
.mask
[i
] = 0;
6373 bld
.sopp(aco_opcode::s_sendmsg
, bld
.m0(ctx
->gs_wave_id
), -1, sendmsg_gs(false, true, stream
));
6376 Temp
emit_boolean_reduce(isel_context
*ctx
, nir_op op
, unsigned cluster_size
, Temp src
)
6378 Builder
bld(ctx
->program
, ctx
->block
);
6380 if (cluster_size
== 1) {
6382 } if (op
== nir_op_iand
&& cluster_size
== 4) {
6383 //subgroupClusteredAnd(val, 4) -> ~wqm(exec & ~val)
6384 Temp tmp
= bld
.sop2(Builder::s_andn2
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), Operand(exec
, bld
.lm
), src
);
6385 return bld
.sop1(Builder::s_not
, bld
.def(bld
.lm
), bld
.def(s1
, scc
),
6386 bld
.sop1(Builder::s_wqm
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), tmp
));
6387 } else if (op
== nir_op_ior
&& cluster_size
== 4) {
6388 //subgroupClusteredOr(val, 4) -> wqm(val & exec)
6389 return bld
.sop1(Builder::s_wqm
, bld
.def(bld
.lm
), bld
.def(s1
, scc
),
6390 bld
.sop2(Builder::s_and
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), src
, Operand(exec
, bld
.lm
)));
6391 } else if (op
== nir_op_iand
&& cluster_size
== ctx
->program
->wave_size
) {
6392 //subgroupAnd(val) -> (exec & ~val) == 0
6393 Temp tmp
= bld
.sop2(Builder::s_andn2
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), Operand(exec
, bld
.lm
), src
).def(1).getTemp();
6394 Temp cond
= bool_to_vector_condition(ctx
, emit_wqm(ctx
, tmp
));
6395 return bld
.sop1(Builder::s_not
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), cond
);
6396 } else if (op
== nir_op_ior
&& cluster_size
== ctx
->program
->wave_size
) {
6397 //subgroupOr(val) -> (val & exec) != 0
6398 Temp tmp
= bld
.sop2(Builder::s_and
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), src
, Operand(exec
, bld
.lm
)).def(1).getTemp();
6399 return bool_to_vector_condition(ctx
, tmp
);
6400 } else if (op
== nir_op_ixor
&& cluster_size
== ctx
->program
->wave_size
) {
6401 //subgroupXor(val) -> s_bcnt1_i32_b64(val & exec) & 1
6402 Temp tmp
= bld
.sop2(Builder::s_and
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), src
, Operand(exec
, bld
.lm
));
6403 tmp
= bld
.sop1(Builder::s_bcnt1_i32
, bld
.def(s1
), bld
.def(s1
, scc
), tmp
);
6404 tmp
= bld
.sop2(aco_opcode::s_and_b32
, bld
.def(s1
), bld
.def(s1
, scc
), tmp
, Operand(1u)).def(1).getTemp();
6405 return bool_to_vector_condition(ctx
, tmp
);
6407 //subgroupClustered{And,Or,Xor}(val, n) ->
6408 //lane_id = v_mbcnt_hi_u32_b32(-1, v_mbcnt_lo_u32_b32(-1, 0)) ; just v_mbcnt_lo_u32_b32 on wave32
6409 //cluster_offset = ~(n - 1) & lane_id
6410 //cluster_mask = ((1 << n) - 1)
6411 //subgroupClusteredAnd():
6412 // return ((val | ~exec) >> cluster_offset) & cluster_mask == cluster_mask
6413 //subgroupClusteredOr():
6414 // return ((val & exec) >> cluster_offset) & cluster_mask != 0
6415 //subgroupClusteredXor():
6416 // return v_bnt_u32_b32(((val & exec) >> cluster_offset) & cluster_mask, 0) & 1 != 0
6417 Temp lane_id
= emit_mbcnt(ctx
, bld
.def(v1
));
6418 Temp cluster_offset
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(~uint32_t(cluster_size
- 1)), lane_id
);
6421 if (op
== nir_op_iand
)
6422 tmp
= bld
.sop2(Builder::s_orn2
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), src
, Operand(exec
, bld
.lm
));
6424 tmp
= bld
.sop2(Builder::s_and
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), src
, Operand(exec
, bld
.lm
));
6426 uint32_t cluster_mask
= cluster_size
== 32 ? -1 : (1u << cluster_size
) - 1u;
6428 if (ctx
->program
->chip_class
<= GFX7
)
6429 tmp
= bld
.vop3(aco_opcode::v_lshr_b64
, bld
.def(v2
), tmp
, cluster_offset
);
6430 else if (ctx
->program
->wave_size
== 64)
6431 tmp
= bld
.vop3(aco_opcode::v_lshrrev_b64
, bld
.def(v2
), cluster_offset
, tmp
);
6433 tmp
= bld
.vop2_e64(aco_opcode::v_lshrrev_b32
, bld
.def(v1
), cluster_offset
, tmp
);
6434 tmp
= emit_extract_vector(ctx
, tmp
, 0, v1
);
6435 if (cluster_mask
!= 0xffffffff)
6436 tmp
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(cluster_mask
), tmp
);
6438 Definition cmp_def
= Definition();
6439 if (op
== nir_op_iand
) {
6440 cmp_def
= bld
.vopc(aco_opcode::v_cmp_eq_u32
, bld
.def(bld
.lm
), Operand(cluster_mask
), tmp
).def(0);
6441 } else if (op
== nir_op_ior
) {
6442 cmp_def
= bld
.vopc(aco_opcode::v_cmp_lg_u32
, bld
.def(bld
.lm
), Operand(0u), tmp
).def(0);
6443 } else if (op
== nir_op_ixor
) {
6444 tmp
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(1u),
6445 bld
.vop3(aco_opcode::v_bcnt_u32_b32
, bld
.def(v1
), tmp
, Operand(0u)));
6446 cmp_def
= bld
.vopc(aco_opcode::v_cmp_lg_u32
, bld
.def(bld
.lm
), Operand(0u), tmp
).def(0);
6448 cmp_def
.setHint(vcc
);
6449 return cmp_def
.getTemp();
6453 Temp
emit_boolean_exclusive_scan(isel_context
*ctx
, nir_op op
, Temp src
)
6455 Builder
bld(ctx
->program
, ctx
->block
);
6457 //subgroupExclusiveAnd(val) -> mbcnt(exec & ~val) == 0
6458 //subgroupExclusiveOr(val) -> mbcnt(val & exec) != 0
6459 //subgroupExclusiveXor(val) -> mbcnt(val & exec) & 1 != 0
6461 if (op
== nir_op_iand
)
6462 tmp
= bld
.sop2(Builder::s_andn2
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), Operand(exec
, bld
.lm
), src
);
6464 tmp
= bld
.sop2(Builder::s_and
, bld
.def(s2
), bld
.def(s1
, scc
), src
, Operand(exec
, bld
.lm
));
6466 Builder::Result lohi
= bld
.pseudo(aco_opcode::p_split_vector
, bld
.def(s1
), bld
.def(s1
), tmp
);
6467 Temp lo
= lohi
.def(0).getTemp();
6468 Temp hi
= lohi
.def(1).getTemp();
6469 Temp mbcnt
= emit_mbcnt(ctx
, bld
.def(v1
), Operand(lo
), Operand(hi
));
6471 Definition cmp_def
= Definition();
6472 if (op
== nir_op_iand
)
6473 cmp_def
= bld
.vopc(aco_opcode::v_cmp_eq_u32
, bld
.def(bld
.lm
), Operand(0u), mbcnt
).def(0);
6474 else if (op
== nir_op_ior
)
6475 cmp_def
= bld
.vopc(aco_opcode::v_cmp_lg_u32
, bld
.def(bld
.lm
), Operand(0u), mbcnt
).def(0);
6476 else if (op
== nir_op_ixor
)
6477 cmp_def
= bld
.vopc(aco_opcode::v_cmp_lg_u32
, bld
.def(bld
.lm
), Operand(0u),
6478 bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(1u), mbcnt
)).def(0);
6479 cmp_def
.setHint(vcc
);
6480 return cmp_def
.getTemp();
6483 Temp
emit_boolean_inclusive_scan(isel_context
*ctx
, nir_op op
, Temp src
)
6485 Builder
bld(ctx
->program
, ctx
->block
);
6487 //subgroupInclusiveAnd(val) -> subgroupExclusiveAnd(val) && val
6488 //subgroupInclusiveOr(val) -> subgroupExclusiveOr(val) || val
6489 //subgroupInclusiveXor(val) -> subgroupExclusiveXor(val) ^^ val
6490 Temp tmp
= emit_boolean_exclusive_scan(ctx
, op
, src
);
6491 if (op
== nir_op_iand
)
6492 return bld
.sop2(Builder::s_and
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), tmp
, src
);
6493 else if (op
== nir_op_ior
)
6494 return bld
.sop2(Builder::s_or
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), tmp
, src
);
6495 else if (op
== nir_op_ixor
)
6496 return bld
.sop2(Builder::s_xor
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), tmp
, src
);
6502 void emit_uniform_subgroup(isel_context
*ctx
, nir_intrinsic_instr
*instr
, Temp src
)
6504 Builder
bld(ctx
->program
, ctx
->block
);
6505 Definition
dst(get_ssa_temp(ctx
, &instr
->dest
.ssa
));
6506 if (src
.regClass().type() == RegType::vgpr
) {
6507 bld
.pseudo(aco_opcode::p_as_uniform
, dst
, src
);
6508 } else if (src
.regClass() == s1
) {
6509 bld
.sop1(aco_opcode::s_mov_b32
, dst
, src
);
6510 } else if (src
.regClass() == s2
) {
6511 bld
.sop1(aco_opcode::s_mov_b64
, dst
, src
);
6513 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
6514 nir_print_instr(&instr
->instr
, stderr
);
6515 fprintf(stderr
, "\n");
6519 void emit_interp_center(isel_context
*ctx
, Temp dst
, Temp pos1
, Temp pos2
)
6521 Builder
bld(ctx
->program
, ctx
->block
);
6522 Temp persp_center
= get_arg(ctx
, ctx
->args
->ac
.persp_center
);
6523 Temp p1
= emit_extract_vector(ctx
, persp_center
, 0, v1
);
6524 Temp p2
= emit_extract_vector(ctx
, persp_center
, 1, v1
);
6526 Temp ddx_1
, ddx_2
, ddy_1
, ddy_2
;
6527 uint32_t dpp_ctrl0
= dpp_quad_perm(0, 0, 0, 0);
6528 uint32_t dpp_ctrl1
= dpp_quad_perm(1, 1, 1, 1);
6529 uint32_t dpp_ctrl2
= dpp_quad_perm(2, 2, 2, 2);
6532 if (ctx
->program
->chip_class
>= GFX8
) {
6533 Temp tl_1
= bld
.vop1_dpp(aco_opcode::v_mov_b32
, bld
.def(v1
), p1
, dpp_ctrl0
);
6534 ddx_1
= bld
.vop2_dpp(aco_opcode::v_sub_f32
, bld
.def(v1
), p1
, tl_1
, dpp_ctrl1
);
6535 ddy_1
= bld
.vop2_dpp(aco_opcode::v_sub_f32
, bld
.def(v1
), p1
, tl_1
, dpp_ctrl2
);
6536 Temp tl_2
= bld
.vop1_dpp(aco_opcode::v_mov_b32
, bld
.def(v1
), p2
, dpp_ctrl0
);
6537 ddx_2
= bld
.vop2_dpp(aco_opcode::v_sub_f32
, bld
.def(v1
), p2
, tl_2
, dpp_ctrl1
);
6538 ddy_2
= bld
.vop2_dpp(aco_opcode::v_sub_f32
, bld
.def(v1
), p2
, tl_2
, dpp_ctrl2
);
6540 Temp tl_1
= bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), p1
, (1 << 15) | dpp_ctrl0
);
6541 ddx_1
= bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), p1
, (1 << 15) | dpp_ctrl1
);
6542 ddx_1
= bld
.vop2(aco_opcode::v_sub_f32
, bld
.def(v1
), ddx_1
, tl_1
);
6543 ddx_2
= bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), p1
, (1 << 15) | dpp_ctrl2
);
6544 ddx_2
= bld
.vop2(aco_opcode::v_sub_f32
, bld
.def(v1
), ddx_2
, tl_1
);
6545 Temp tl_2
= bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), p2
, (1 << 15) | dpp_ctrl0
);
6546 ddy_1
= bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), p2
, (1 << 15) | dpp_ctrl1
);
6547 ddy_1
= bld
.vop2(aco_opcode::v_sub_f32
, bld
.def(v1
), ddy_1
, tl_2
);
6548 ddy_2
= bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), p2
, (1 << 15) | dpp_ctrl2
);
6549 ddy_2
= bld
.vop2(aco_opcode::v_sub_f32
, bld
.def(v1
), ddy_2
, tl_2
);
6552 /* res_k = p_k + ddx_k * pos1 + ddy_k * pos2 */
6553 Temp tmp1
= bld
.vop3(aco_opcode::v_mad_f32
, bld
.def(v1
), ddx_1
, pos1
, p1
);
6554 Temp tmp2
= bld
.vop3(aco_opcode::v_mad_f32
, bld
.def(v1
), ddx_2
, pos1
, p2
);
6555 tmp1
= bld
.vop3(aco_opcode::v_mad_f32
, bld
.def(v1
), ddy_1
, pos2
, tmp1
);
6556 tmp2
= bld
.vop3(aco_opcode::v_mad_f32
, bld
.def(v1
), ddy_2
, pos2
, tmp2
);
6557 Temp wqm1
= bld
.tmp(v1
);
6558 emit_wqm(ctx
, tmp1
, wqm1
, true);
6559 Temp wqm2
= bld
.tmp(v1
);
6560 emit_wqm(ctx
, tmp2
, wqm2
, true);
6561 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), wqm1
, wqm2
);
6565 void visit_intrinsic(isel_context
*ctx
, nir_intrinsic_instr
*instr
)
6567 Builder
bld(ctx
->program
, ctx
->block
);
6568 switch(instr
->intrinsic
) {
6569 case nir_intrinsic_load_barycentric_sample
:
6570 case nir_intrinsic_load_barycentric_pixel
:
6571 case nir_intrinsic_load_barycentric_centroid
: {
6572 glsl_interp_mode mode
= (glsl_interp_mode
)nir_intrinsic_interp_mode(instr
);
6573 Temp bary
= Temp(0, s2
);
6575 case INTERP_MODE_SMOOTH
:
6576 case INTERP_MODE_NONE
:
6577 if (instr
->intrinsic
== nir_intrinsic_load_barycentric_pixel
)
6578 bary
= get_arg(ctx
, ctx
->args
->ac
.persp_center
);
6579 else if (instr
->intrinsic
== nir_intrinsic_load_barycentric_centroid
)
6580 bary
= ctx
->persp_centroid
;
6581 else if (instr
->intrinsic
== nir_intrinsic_load_barycentric_sample
)
6582 bary
= get_arg(ctx
, ctx
->args
->ac
.persp_sample
);
6584 case INTERP_MODE_NOPERSPECTIVE
:
6585 if (instr
->intrinsic
== nir_intrinsic_load_barycentric_pixel
)
6586 bary
= get_arg(ctx
, ctx
->args
->ac
.linear_center
);
6587 else if (instr
->intrinsic
== nir_intrinsic_load_barycentric_centroid
)
6588 bary
= ctx
->linear_centroid
;
6589 else if (instr
->intrinsic
== nir_intrinsic_load_barycentric_sample
)
6590 bary
= get_arg(ctx
, ctx
->args
->ac
.linear_sample
);
6595 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
6596 Temp p1
= emit_extract_vector(ctx
, bary
, 0, v1
);
6597 Temp p2
= emit_extract_vector(ctx
, bary
, 1, v1
);
6598 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
),
6599 Operand(p1
), Operand(p2
));
6600 emit_split_vector(ctx
, dst
, 2);
6603 case nir_intrinsic_load_barycentric_model
: {
6604 Temp model
= get_arg(ctx
, ctx
->args
->ac
.pull_model
);
6606 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
6607 Temp p1
= emit_extract_vector(ctx
, model
, 0, v1
);
6608 Temp p2
= emit_extract_vector(ctx
, model
, 1, v1
);
6609 Temp p3
= emit_extract_vector(ctx
, model
, 2, v1
);
6610 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
),
6611 Operand(p1
), Operand(p2
), Operand(p3
));
6612 emit_split_vector(ctx
, dst
, 3);
6615 case nir_intrinsic_load_barycentric_at_sample
: {
6616 uint32_t sample_pos_offset
= RING_PS_SAMPLE_POSITIONS
* 16;
6617 switch (ctx
->options
->key
.fs
.num_samples
) {
6618 case 2: sample_pos_offset
+= 1 << 3; break;
6619 case 4: sample_pos_offset
+= 3 << 3; break;
6620 case 8: sample_pos_offset
+= 7 << 3; break;
6624 Temp addr
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
6625 nir_const_value
* const_addr
= nir_src_as_const_value(instr
->src
[0]);
6626 Temp private_segment_buffer
= ctx
->program
->private_segment_buffer
;
6627 if (addr
.type() == RegType::sgpr
) {
6630 sample_pos_offset
+= const_addr
->u32
<< 3;
6631 offset
= Operand(sample_pos_offset
);
6632 } else if (ctx
->options
->chip_class
>= GFX9
) {
6633 offset
= bld
.sop2(aco_opcode::s_lshl3_add_u32
, bld
.def(s1
), bld
.def(s1
, scc
), addr
, Operand(sample_pos_offset
));
6635 offset
= bld
.sop2(aco_opcode::s_lshl_b32
, bld
.def(s1
), bld
.def(s1
, scc
), addr
, Operand(3u));
6636 offset
= bld
.sop2(aco_opcode::s_add_u32
, bld
.def(s1
), bld
.def(s1
, scc
), addr
, Operand(sample_pos_offset
));
6639 Operand off
= bld
.copy(bld
.def(s1
), Operand(offset
));
6640 sample_pos
= bld
.smem(aco_opcode::s_load_dwordx2
, bld
.def(s2
), private_segment_buffer
, off
);
6642 } else if (ctx
->options
->chip_class
>= GFX9
) {
6643 addr
= bld
.vop2(aco_opcode::v_lshlrev_b32
, bld
.def(v1
), Operand(3u), addr
);
6644 sample_pos
= bld
.global(aco_opcode::global_load_dwordx2
, bld
.def(v2
), addr
, private_segment_buffer
, sample_pos_offset
);
6645 } else if (ctx
->options
->chip_class
>= GFX7
) {
6646 /* addr += private_segment_buffer + sample_pos_offset */
6647 Temp tmp0
= bld
.tmp(s1
);
6648 Temp tmp1
= bld
.tmp(s1
);
6649 bld
.pseudo(aco_opcode::p_split_vector
, Definition(tmp0
), Definition(tmp1
), private_segment_buffer
);
6650 Definition scc_tmp
= bld
.def(s1
, scc
);
6651 tmp0
= bld
.sop2(aco_opcode::s_add_u32
, bld
.def(s1
), scc_tmp
, tmp0
, Operand(sample_pos_offset
));
6652 tmp1
= bld
.sop2(aco_opcode::s_addc_u32
, bld
.def(s1
), bld
.def(s1
, scc
), tmp1
, Operand(0u), bld
.scc(scc_tmp
.getTemp()));
6653 addr
= bld
.vop2(aco_opcode::v_lshlrev_b32
, bld
.def(v1
), Operand(3u), addr
);
6654 Temp pck0
= bld
.tmp(v1
);
6655 Temp carry
= bld
.vadd32(Definition(pck0
), tmp0
, addr
, true).def(1).getTemp();
6656 tmp1
= as_vgpr(ctx
, tmp1
);
6657 Temp pck1
= bld
.vop2_e64(aco_opcode::v_addc_co_u32
, bld
.def(v1
), bld
.hint_vcc(bld
.def(bld
.lm
)), tmp1
, Operand(0u), carry
);
6658 addr
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), pck0
, pck1
);
6660 /* sample_pos = flat_load_dwordx2 addr */
6661 sample_pos
= bld
.flat(aco_opcode::flat_load_dwordx2
, bld
.def(v2
), addr
, Operand(s1
));
6663 assert(ctx
->options
->chip_class
== GFX6
);
6665 uint32_t rsrc_conf
= S_008F0C_NUM_FORMAT(V_008F0C_BUF_NUM_FORMAT_FLOAT
) |
6666 S_008F0C_DATA_FORMAT(V_008F0C_BUF_DATA_FORMAT_32
);
6667 Temp rsrc
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s4
), private_segment_buffer
, Operand(0u), Operand(rsrc_conf
));
6669 addr
= bld
.vop2(aco_opcode::v_lshlrev_b32
, bld
.def(v1
), Operand(3u), addr
);
6670 addr
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), addr
, Operand(0u));
6672 sample_pos
= bld
.tmp(v2
);
6674 aco_ptr
<MUBUF_instruction
> load
{create_instruction
<MUBUF_instruction
>(aco_opcode::buffer_load_dwordx2
, Format::MUBUF
, 3, 1)};
6675 load
->definitions
[0] = Definition(sample_pos
);
6676 load
->operands
[0] = Operand(rsrc
);
6677 load
->operands
[1] = Operand(addr
);
6678 load
->operands
[2] = Operand(0u);
6679 load
->offset
= sample_pos_offset
;
6681 load
->addr64
= true;
6684 load
->disable_wqm
= false;
6685 load
->barrier
= barrier_none
;
6686 load
->can_reorder
= true;
6687 ctx
->block
->instructions
.emplace_back(std::move(load
));
6690 /* sample_pos -= 0.5 */
6691 Temp pos1
= bld
.tmp(RegClass(sample_pos
.type(), 1));
6692 Temp pos2
= bld
.tmp(RegClass(sample_pos
.type(), 1));
6693 bld
.pseudo(aco_opcode::p_split_vector
, Definition(pos1
), Definition(pos2
), sample_pos
);
6694 pos1
= bld
.vop2_e64(aco_opcode::v_sub_f32
, bld
.def(v1
), pos1
, Operand(0x3f000000u
));
6695 pos2
= bld
.vop2_e64(aco_opcode::v_sub_f32
, bld
.def(v1
), pos2
, Operand(0x3f000000u
));
6697 emit_interp_center(ctx
, get_ssa_temp(ctx
, &instr
->dest
.ssa
), pos1
, pos2
);
6700 case nir_intrinsic_load_barycentric_at_offset
: {
6701 Temp offset
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
6702 RegClass rc
= RegClass(offset
.type(), 1);
6703 Temp pos1
= bld
.tmp(rc
), pos2
= bld
.tmp(rc
);
6704 bld
.pseudo(aco_opcode::p_split_vector
, Definition(pos1
), Definition(pos2
), offset
);
6705 emit_interp_center(ctx
, get_ssa_temp(ctx
, &instr
->dest
.ssa
), pos1
, pos2
);
6708 case nir_intrinsic_load_front_face
: {
6709 bld
.vopc(aco_opcode::v_cmp_lg_u32
, Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)),
6710 Operand(0u), get_arg(ctx
, ctx
->args
->ac
.front_face
)).def(0).setHint(vcc
);
6713 case nir_intrinsic_load_view_index
: {
6714 if (ctx
->stage
& (sw_vs
| sw_gs
| sw_tcs
| sw_tes
)) {
6715 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
6716 bld
.copy(Definition(dst
), Operand(get_arg(ctx
, ctx
->args
->ac
.view_index
)));
6722 case nir_intrinsic_load_layer_id
: {
6723 unsigned idx
= nir_intrinsic_base(instr
);
6724 bld
.vintrp(aco_opcode::v_interp_mov_f32
, Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)),
6725 Operand(2u), bld
.m0(get_arg(ctx
, ctx
->args
->ac
.prim_mask
)), idx
, 0);
6728 case nir_intrinsic_load_frag_coord
: {
6729 emit_load_frag_coord(ctx
, get_ssa_temp(ctx
, &instr
->dest
.ssa
), 4);
6732 case nir_intrinsic_load_sample_pos
: {
6733 Temp posx
= get_arg(ctx
, ctx
->args
->ac
.frag_pos
[0]);
6734 Temp posy
= get_arg(ctx
, ctx
->args
->ac
.frag_pos
[1]);
6735 bld
.pseudo(aco_opcode::p_create_vector
, Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)),
6736 posx
.id() ? bld
.vop1(aco_opcode::v_fract_f32
, bld
.def(v1
), posx
) : Operand(0u),
6737 posy
.id() ? bld
.vop1(aco_opcode::v_fract_f32
, bld
.def(v1
), posy
) : Operand(0u));
6740 case nir_intrinsic_load_tess_coord
:
6741 visit_load_tess_coord(ctx
, instr
);
6743 case nir_intrinsic_load_interpolated_input
:
6744 visit_load_interpolated_input(ctx
, instr
);
6746 case nir_intrinsic_store_output
:
6747 visit_store_output(ctx
, instr
);
6749 case nir_intrinsic_load_input
:
6750 case nir_intrinsic_load_input_vertex
:
6751 visit_load_input(ctx
, instr
);
6753 case nir_intrinsic_load_output
:
6754 visit_load_output(ctx
, instr
);
6756 case nir_intrinsic_load_per_vertex_input
:
6757 visit_load_per_vertex_input(ctx
, instr
);
6759 case nir_intrinsic_load_per_vertex_output
:
6760 visit_load_per_vertex_output(ctx
, instr
);
6762 case nir_intrinsic_store_per_vertex_output
:
6763 visit_store_per_vertex_output(ctx
, instr
);
6765 case nir_intrinsic_load_ubo
:
6766 visit_load_ubo(ctx
, instr
);
6768 case nir_intrinsic_load_push_constant
:
6769 visit_load_push_constant(ctx
, instr
);
6771 case nir_intrinsic_load_constant
:
6772 visit_load_constant(ctx
, instr
);
6774 case nir_intrinsic_vulkan_resource_index
:
6775 visit_load_resource(ctx
, instr
);
6777 case nir_intrinsic_discard
:
6778 visit_discard(ctx
, instr
);
6780 case nir_intrinsic_discard_if
:
6781 visit_discard_if(ctx
, instr
);
6783 case nir_intrinsic_load_shared
:
6784 visit_load_shared(ctx
, instr
);
6786 case nir_intrinsic_store_shared
:
6787 visit_store_shared(ctx
, instr
);
6789 case nir_intrinsic_shared_atomic_add
:
6790 case nir_intrinsic_shared_atomic_imin
:
6791 case nir_intrinsic_shared_atomic_umin
:
6792 case nir_intrinsic_shared_atomic_imax
:
6793 case nir_intrinsic_shared_atomic_umax
:
6794 case nir_intrinsic_shared_atomic_and
:
6795 case nir_intrinsic_shared_atomic_or
:
6796 case nir_intrinsic_shared_atomic_xor
:
6797 case nir_intrinsic_shared_atomic_exchange
:
6798 case nir_intrinsic_shared_atomic_comp_swap
:
6799 visit_shared_atomic(ctx
, instr
);
6801 case nir_intrinsic_image_deref_load
:
6802 visit_image_load(ctx
, instr
);
6804 case nir_intrinsic_image_deref_store
:
6805 visit_image_store(ctx
, instr
);
6807 case nir_intrinsic_image_deref_atomic_add
:
6808 case nir_intrinsic_image_deref_atomic_umin
:
6809 case nir_intrinsic_image_deref_atomic_imin
:
6810 case nir_intrinsic_image_deref_atomic_umax
:
6811 case nir_intrinsic_image_deref_atomic_imax
:
6812 case nir_intrinsic_image_deref_atomic_and
:
6813 case nir_intrinsic_image_deref_atomic_or
:
6814 case nir_intrinsic_image_deref_atomic_xor
:
6815 case nir_intrinsic_image_deref_atomic_exchange
:
6816 case nir_intrinsic_image_deref_atomic_comp_swap
:
6817 visit_image_atomic(ctx
, instr
);
6819 case nir_intrinsic_image_deref_size
:
6820 visit_image_size(ctx
, instr
);
6822 case nir_intrinsic_load_ssbo
:
6823 visit_load_ssbo(ctx
, instr
);
6825 case nir_intrinsic_store_ssbo
:
6826 visit_store_ssbo(ctx
, instr
);
6828 case nir_intrinsic_load_global
:
6829 visit_load_global(ctx
, instr
);
6831 case nir_intrinsic_store_global
:
6832 visit_store_global(ctx
, instr
);
6834 case nir_intrinsic_global_atomic_add
:
6835 case nir_intrinsic_global_atomic_imin
:
6836 case nir_intrinsic_global_atomic_umin
:
6837 case nir_intrinsic_global_atomic_imax
:
6838 case nir_intrinsic_global_atomic_umax
:
6839 case nir_intrinsic_global_atomic_and
:
6840 case nir_intrinsic_global_atomic_or
:
6841 case nir_intrinsic_global_atomic_xor
:
6842 case nir_intrinsic_global_atomic_exchange
:
6843 case nir_intrinsic_global_atomic_comp_swap
:
6844 visit_global_atomic(ctx
, instr
);
6846 case nir_intrinsic_ssbo_atomic_add
:
6847 case nir_intrinsic_ssbo_atomic_imin
:
6848 case nir_intrinsic_ssbo_atomic_umin
:
6849 case nir_intrinsic_ssbo_atomic_imax
:
6850 case nir_intrinsic_ssbo_atomic_umax
:
6851 case nir_intrinsic_ssbo_atomic_and
:
6852 case nir_intrinsic_ssbo_atomic_or
:
6853 case nir_intrinsic_ssbo_atomic_xor
:
6854 case nir_intrinsic_ssbo_atomic_exchange
:
6855 case nir_intrinsic_ssbo_atomic_comp_swap
:
6856 visit_atomic_ssbo(ctx
, instr
);
6858 case nir_intrinsic_load_scratch
:
6859 visit_load_scratch(ctx
, instr
);
6861 case nir_intrinsic_store_scratch
:
6862 visit_store_scratch(ctx
, instr
);
6864 case nir_intrinsic_get_buffer_size
:
6865 visit_get_buffer_size(ctx
, instr
);
6867 case nir_intrinsic_control_barrier
: {
6868 if (ctx
->program
->chip_class
== GFX6
&& ctx
->shader
->info
.stage
== MESA_SHADER_TESS_CTRL
) {
6869 /* GFX6 only (thanks to a hw bug workaround):
6870 * The real barrier instruction isn’t needed, because an entire patch
6871 * always fits into a single wave.
6876 if (ctx
->program
->workgroup_size
> ctx
->program
->wave_size
)
6877 bld
.sopp(aco_opcode::s_barrier
);
6881 case nir_intrinsic_memory_barrier_tcs_patch
:
6882 case nir_intrinsic_group_memory_barrier
:
6883 case nir_intrinsic_memory_barrier
:
6884 case nir_intrinsic_memory_barrier_buffer
:
6885 case nir_intrinsic_memory_barrier_image
:
6886 case nir_intrinsic_memory_barrier_shared
:
6887 emit_memory_barrier(ctx
, instr
);
6889 case nir_intrinsic_load_num_work_groups
: {
6890 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
6891 bld
.copy(Definition(dst
), Operand(get_arg(ctx
, ctx
->args
->ac
.num_work_groups
)));
6892 emit_split_vector(ctx
, dst
, 3);
6895 case nir_intrinsic_load_local_invocation_id
: {
6896 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
6897 bld
.copy(Definition(dst
), Operand(get_arg(ctx
, ctx
->args
->ac
.local_invocation_ids
)));
6898 emit_split_vector(ctx
, dst
, 3);
6901 case nir_intrinsic_load_work_group_id
: {
6902 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
6903 struct ac_arg
*args
= ctx
->args
->ac
.workgroup_ids
;
6904 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
),
6905 args
[0].used
? Operand(get_arg(ctx
, args
[0])) : Operand(0u),
6906 args
[1].used
? Operand(get_arg(ctx
, args
[1])) : Operand(0u),
6907 args
[2].used
? Operand(get_arg(ctx
, args
[2])) : Operand(0u));
6908 emit_split_vector(ctx
, dst
, 3);
6911 case nir_intrinsic_load_local_invocation_index
: {
6912 Temp id
= emit_mbcnt(ctx
, bld
.def(v1
));
6914 /* The tg_size bits [6:11] contain the subgroup id,
6915 * we need this multiplied by the wave size, and then OR the thread id to it.
6917 if (ctx
->program
->wave_size
== 64) {
6918 /* After the s_and the bits are already multiplied by 64 (left shifted by 6) so we can just feed that to v_or */
6919 Temp tg_num
= bld
.sop2(aco_opcode::s_and_b32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(0xfc0u
),
6920 get_arg(ctx
, ctx
->args
->ac
.tg_size
));
6921 bld
.vop2(aco_opcode::v_or_b32
, Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)), tg_num
, id
);
6923 /* Extract the bit field and multiply the result by 32 (left shift by 5), then do the OR */
6924 Temp tg_num
= bld
.sop2(aco_opcode::s_bfe_u32
, bld
.def(s1
), bld
.def(s1
, scc
),
6925 get_arg(ctx
, ctx
->args
->ac
.tg_size
), Operand(0x6u
| (0x6u
<< 16)));
6926 bld
.vop3(aco_opcode::v_lshl_or_b32
, Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)), tg_num
, Operand(0x5u
), id
);
6930 case nir_intrinsic_load_subgroup_id
: {
6931 if (ctx
->stage
== compute_cs
) {
6932 bld
.sop2(aco_opcode::s_bfe_u32
, Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)), bld
.def(s1
, scc
),
6933 get_arg(ctx
, ctx
->args
->ac
.tg_size
), Operand(0x6u
| (0x6u
<< 16)));
6935 bld
.sop1(aco_opcode::s_mov_b32
, Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)), Operand(0x0u
));
6939 case nir_intrinsic_load_subgroup_invocation
: {
6940 emit_mbcnt(ctx
, Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)));
6943 case nir_intrinsic_load_num_subgroups
: {
6944 if (ctx
->stage
== compute_cs
)
6945 bld
.sop2(aco_opcode::s_and_b32
, Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)), bld
.def(s1
, scc
), Operand(0x3fu
),
6946 get_arg(ctx
, ctx
->args
->ac
.tg_size
));
6948 bld
.sop1(aco_opcode::s_mov_b32
, Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)), Operand(0x1u
));
6951 case nir_intrinsic_ballot
: {
6952 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
6953 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
6954 Definition tmp
= bld
.def(dst
.regClass());
6955 Definition lanemask_tmp
= dst
.size() == bld
.lm
.size() ? tmp
: bld
.def(src
.regClass());
6956 if (instr
->src
[0].ssa
->bit_size
== 1) {
6957 assert(src
.regClass() == bld
.lm
);
6958 bld
.sop2(Builder::s_and
, lanemask_tmp
, bld
.def(s1
, scc
), Operand(exec
, bld
.lm
), src
);
6959 } else if (instr
->src
[0].ssa
->bit_size
== 32 && src
.regClass() == v1
) {
6960 bld
.vopc(aco_opcode::v_cmp_lg_u32
, lanemask_tmp
, Operand(0u), src
);
6961 } else if (instr
->src
[0].ssa
->bit_size
== 64 && src
.regClass() == v2
) {
6962 bld
.vopc(aco_opcode::v_cmp_lg_u64
, lanemask_tmp
, Operand(0u), src
);
6964 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
6965 nir_print_instr(&instr
->instr
, stderr
);
6966 fprintf(stderr
, "\n");
6968 if (dst
.size() != bld
.lm
.size()) {
6969 /* Wave32 with ballot size set to 64 */
6970 bld
.pseudo(aco_opcode::p_create_vector
, Definition(tmp
), lanemask_tmp
.getTemp(), Operand(0u));
6972 emit_wqm(ctx
, tmp
.getTemp(), dst
);
6975 case nir_intrinsic_shuffle
:
6976 case nir_intrinsic_read_invocation
: {
6977 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
6978 if (!ctx
->divergent_vals
[instr
->src
[0].ssa
->index
]) {
6979 emit_uniform_subgroup(ctx
, instr
, src
);
6981 Temp tid
= get_ssa_temp(ctx
, instr
->src
[1].ssa
);
6982 if (instr
->intrinsic
== nir_intrinsic_read_invocation
|| !ctx
->divergent_vals
[instr
->src
[1].ssa
->index
])
6983 tid
= bld
.as_uniform(tid
);
6984 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
6985 if (src
.regClass() == v1
) {
6986 emit_wqm(ctx
, emit_bpermute(ctx
, bld
, tid
, src
), dst
);
6987 } else if (src
.regClass() == v2
) {
6988 Temp lo
= bld
.tmp(v1
), hi
= bld
.tmp(v1
);
6989 bld
.pseudo(aco_opcode::p_split_vector
, Definition(lo
), Definition(hi
), src
);
6990 lo
= emit_wqm(ctx
, emit_bpermute(ctx
, bld
, tid
, lo
));
6991 hi
= emit_wqm(ctx
, emit_bpermute(ctx
, bld
, tid
, hi
));
6992 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lo
, hi
);
6993 emit_split_vector(ctx
, dst
, 2);
6994 } else if (instr
->dest
.ssa
.bit_size
== 1 && tid
.regClass() == s1
) {
6995 assert(src
.regClass() == bld
.lm
);
6996 Temp tmp
= bld
.sopc(Builder::s_bitcmp1
, bld
.def(s1
, scc
), src
, tid
);
6997 bool_to_vector_condition(ctx
, emit_wqm(ctx
, tmp
), dst
);
6998 } else if (instr
->dest
.ssa
.bit_size
== 1 && tid
.regClass() == v1
) {
6999 assert(src
.regClass() == bld
.lm
);
7001 if (ctx
->program
->chip_class
<= GFX7
)
7002 tmp
= bld
.vop3(aco_opcode::v_lshr_b64
, bld
.def(v2
), src
, tid
);
7003 else if (ctx
->program
->wave_size
== 64)
7004 tmp
= bld
.vop3(aco_opcode::v_lshrrev_b64
, bld
.def(v2
), tid
, src
);
7006 tmp
= bld
.vop2_e64(aco_opcode::v_lshrrev_b32
, bld
.def(v1
), tid
, src
);
7007 tmp
= emit_extract_vector(ctx
, tmp
, 0, v1
);
7008 tmp
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(1u), tmp
);
7009 emit_wqm(ctx
, bld
.vopc(aco_opcode::v_cmp_lg_u32
, bld
.def(bld
.lm
), Operand(0u), tmp
), dst
);
7011 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
7012 nir_print_instr(&instr
->instr
, stderr
);
7013 fprintf(stderr
, "\n");
7018 case nir_intrinsic_load_sample_id
: {
7019 bld
.vop3(aco_opcode::v_bfe_u32
, Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)),
7020 get_arg(ctx
, ctx
->args
->ac
.ancillary
), Operand(8u), Operand(4u));
7023 case nir_intrinsic_load_sample_mask_in
: {
7024 visit_load_sample_mask_in(ctx
, instr
);
7027 case nir_intrinsic_read_first_invocation
: {
7028 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
7029 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7030 if (src
.regClass() == v1
) {
7032 bld
.vop1(aco_opcode::v_readfirstlane_b32
, bld
.def(s1
), src
),
7034 } else if (src
.regClass() == v2
) {
7035 Temp lo
= bld
.tmp(v1
), hi
= bld
.tmp(v1
);
7036 bld
.pseudo(aco_opcode::p_split_vector
, Definition(lo
), Definition(hi
), src
);
7037 lo
= emit_wqm(ctx
, bld
.vop1(aco_opcode::v_readfirstlane_b32
, bld
.def(s1
), lo
));
7038 hi
= emit_wqm(ctx
, bld
.vop1(aco_opcode::v_readfirstlane_b32
, bld
.def(s1
), hi
));
7039 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lo
, hi
);
7040 emit_split_vector(ctx
, dst
, 2);
7041 } else if (instr
->dest
.ssa
.bit_size
== 1) {
7042 assert(src
.regClass() == bld
.lm
);
7043 Temp tmp
= bld
.sopc(Builder::s_bitcmp1
, bld
.def(s1
, scc
), src
,
7044 bld
.sop1(Builder::s_ff1_i32
, bld
.def(s1
), Operand(exec
, bld
.lm
)));
7045 bool_to_vector_condition(ctx
, emit_wqm(ctx
, tmp
), dst
);
7046 } else if (src
.regClass() == s1
) {
7047 bld
.sop1(aco_opcode::s_mov_b32
, Definition(dst
), src
);
7048 } else if (src
.regClass() == s2
) {
7049 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), src
);
7051 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
7052 nir_print_instr(&instr
->instr
, stderr
);
7053 fprintf(stderr
, "\n");
7057 case nir_intrinsic_vote_all
: {
7058 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
7059 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7060 assert(src
.regClass() == bld
.lm
);
7061 assert(dst
.regClass() == bld
.lm
);
7063 Temp tmp
= bld
.sop2(Builder::s_andn2
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), Operand(exec
, bld
.lm
), src
).def(1).getTemp();
7064 Temp cond
= bool_to_vector_condition(ctx
, emit_wqm(ctx
, tmp
));
7065 bld
.sop1(Builder::s_not
, Definition(dst
), bld
.def(s1
, scc
), cond
);
7068 case nir_intrinsic_vote_any
: {
7069 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
7070 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7071 assert(src
.regClass() == bld
.lm
);
7072 assert(dst
.regClass() == bld
.lm
);
7074 Temp tmp
= bool_to_scalar_condition(ctx
, src
);
7075 bool_to_vector_condition(ctx
, emit_wqm(ctx
, tmp
), dst
);
7078 case nir_intrinsic_reduce
:
7079 case nir_intrinsic_inclusive_scan
:
7080 case nir_intrinsic_exclusive_scan
: {
7081 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
7082 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7083 nir_op op
= (nir_op
) nir_intrinsic_reduction_op(instr
);
7084 unsigned cluster_size
= instr
->intrinsic
== nir_intrinsic_reduce
?
7085 nir_intrinsic_cluster_size(instr
) : 0;
7086 cluster_size
= util_next_power_of_two(MIN2(cluster_size
? cluster_size
: ctx
->program
->wave_size
, ctx
->program
->wave_size
));
7088 if (!ctx
->divergent_vals
[instr
->src
[0].ssa
->index
] && (op
== nir_op_ior
|| op
== nir_op_iand
)) {
7089 emit_uniform_subgroup(ctx
, instr
, src
);
7090 } else if (instr
->dest
.ssa
.bit_size
== 1) {
7091 if (op
== nir_op_imul
|| op
== nir_op_umin
|| op
== nir_op_imin
)
7093 else if (op
== nir_op_iadd
)
7095 else if (op
== nir_op_umax
|| op
== nir_op_imax
)
7097 assert(op
== nir_op_iand
|| op
== nir_op_ior
|| op
== nir_op_ixor
);
7099 switch (instr
->intrinsic
) {
7100 case nir_intrinsic_reduce
:
7101 emit_wqm(ctx
, emit_boolean_reduce(ctx
, op
, cluster_size
, src
), dst
);
7103 case nir_intrinsic_exclusive_scan
:
7104 emit_wqm(ctx
, emit_boolean_exclusive_scan(ctx
, op
, src
), dst
);
7106 case nir_intrinsic_inclusive_scan
:
7107 emit_wqm(ctx
, emit_boolean_inclusive_scan(ctx
, op
, src
), dst
);
7112 } else if (cluster_size
== 1) {
7113 bld
.copy(Definition(dst
), src
);
7115 src
= as_vgpr(ctx
, src
);
7119 #define CASE(name) case nir_op_##name: reduce_op = (src.regClass() == v1) ? name##32 : name##64; break;
7134 unreachable("unknown reduction op");
7139 switch (instr
->intrinsic
) {
7140 case nir_intrinsic_reduce
: aco_op
= aco_opcode::p_reduce
; break;
7141 case nir_intrinsic_inclusive_scan
: aco_op
= aco_opcode::p_inclusive_scan
; break;
7142 case nir_intrinsic_exclusive_scan
: aco_op
= aco_opcode::p_exclusive_scan
; break;
7144 unreachable("unknown reduce intrinsic");
7147 aco_ptr
<Pseudo_reduction_instruction
> reduce
{create_instruction
<Pseudo_reduction_instruction
>(aco_op
, Format::PSEUDO_REDUCTION
, 3, 5)};
7148 reduce
->operands
[0] = Operand(src
);
7149 // filled in by aco_reduce_assign.cpp, used internally as part of the
7151 assert(dst
.size() == 1 || dst
.size() == 2);
7152 reduce
->operands
[1] = Operand(RegClass(RegType::vgpr
, dst
.size()).as_linear());
7153 reduce
->operands
[2] = Operand(v1
.as_linear());
7155 Temp tmp_dst
= bld
.tmp(dst
.regClass());
7156 reduce
->definitions
[0] = Definition(tmp_dst
);
7157 reduce
->definitions
[1] = bld
.def(ctx
->program
->lane_mask
); // used internally
7158 reduce
->definitions
[2] = Definition();
7159 reduce
->definitions
[3] = Definition(scc
, s1
);
7160 reduce
->definitions
[4] = Definition();
7161 reduce
->reduce_op
= reduce_op
;
7162 reduce
->cluster_size
= cluster_size
;
7163 ctx
->block
->instructions
.emplace_back(std::move(reduce
));
7165 emit_wqm(ctx
, tmp_dst
, dst
);
7169 case nir_intrinsic_quad_broadcast
: {
7170 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
7171 if (!ctx
->divergent_vals
[instr
->dest
.ssa
.index
]) {
7172 emit_uniform_subgroup(ctx
, instr
, src
);
7174 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7175 unsigned lane
= nir_src_as_const_value(instr
->src
[1])->u32
;
7176 uint32_t dpp_ctrl
= dpp_quad_perm(lane
, lane
, lane
, lane
);
7178 if (instr
->dest
.ssa
.bit_size
== 1) {
7179 assert(src
.regClass() == bld
.lm
);
7180 assert(dst
.regClass() == bld
.lm
);
7181 uint32_t half_mask
= 0x11111111u
<< lane
;
7182 Temp mask_tmp
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s2
), Operand(half_mask
), Operand(half_mask
));
7183 Temp tmp
= bld
.tmp(bld
.lm
);
7184 bld
.sop1(Builder::s_wqm
, Definition(tmp
),
7185 bld
.sop2(Builder::s_and
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), mask_tmp
,
7186 bld
.sop2(Builder::s_and
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), src
, Operand(exec
, bld
.lm
))));
7187 emit_wqm(ctx
, tmp
, dst
);
7188 } else if (instr
->dest
.ssa
.bit_size
== 32) {
7189 if (ctx
->program
->chip_class
>= GFX8
)
7190 emit_wqm(ctx
, bld
.vop1_dpp(aco_opcode::v_mov_b32
, bld
.def(v1
), src
, dpp_ctrl
), dst
);
7192 emit_wqm(ctx
, bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), src
, (1 << 15) | dpp_ctrl
), dst
);
7193 } else if (instr
->dest
.ssa
.bit_size
== 64) {
7194 Temp lo
= bld
.tmp(v1
), hi
= bld
.tmp(v1
);
7195 bld
.pseudo(aco_opcode::p_split_vector
, Definition(lo
), Definition(hi
), src
);
7196 if (ctx
->program
->chip_class
>= GFX8
) {
7197 lo
= emit_wqm(ctx
, bld
.vop1_dpp(aco_opcode::v_mov_b32
, bld
.def(v1
), lo
, dpp_ctrl
));
7198 hi
= emit_wqm(ctx
, bld
.vop1_dpp(aco_opcode::v_mov_b32
, bld
.def(v1
), hi
, dpp_ctrl
));
7200 lo
= emit_wqm(ctx
, bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), lo
, (1 << 15) | dpp_ctrl
));
7201 hi
= emit_wqm(ctx
, bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), hi
, (1 << 15) | dpp_ctrl
));
7203 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lo
, hi
);
7204 emit_split_vector(ctx
, dst
, 2);
7206 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
7207 nir_print_instr(&instr
->instr
, stderr
);
7208 fprintf(stderr
, "\n");
7213 case nir_intrinsic_quad_swap_horizontal
:
7214 case nir_intrinsic_quad_swap_vertical
:
7215 case nir_intrinsic_quad_swap_diagonal
:
7216 case nir_intrinsic_quad_swizzle_amd
: {
7217 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
7218 if (!ctx
->divergent_vals
[instr
->dest
.ssa
.index
]) {
7219 emit_uniform_subgroup(ctx
, instr
, src
);
7222 uint16_t dpp_ctrl
= 0;
7223 switch (instr
->intrinsic
) {
7224 case nir_intrinsic_quad_swap_horizontal
:
7225 dpp_ctrl
= dpp_quad_perm(1, 0, 3, 2);
7227 case nir_intrinsic_quad_swap_vertical
:
7228 dpp_ctrl
= dpp_quad_perm(2, 3, 0, 1);
7230 case nir_intrinsic_quad_swap_diagonal
:
7231 dpp_ctrl
= dpp_quad_perm(3, 2, 1, 0);
7233 case nir_intrinsic_quad_swizzle_amd
:
7234 dpp_ctrl
= nir_intrinsic_swizzle_mask(instr
);
7239 if (ctx
->program
->chip_class
< GFX8
)
7240 dpp_ctrl
|= (1 << 15);
7242 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7243 if (instr
->dest
.ssa
.bit_size
== 1) {
7244 assert(src
.regClass() == bld
.lm
);
7245 src
= bld
.vop2_e64(aco_opcode::v_cndmask_b32
, bld
.def(v1
), Operand(0u), Operand((uint32_t)-1), src
);
7246 if (ctx
->program
->chip_class
>= GFX8
)
7247 src
= bld
.vop1_dpp(aco_opcode::v_mov_b32
, bld
.def(v1
), src
, dpp_ctrl
);
7249 src
= bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), src
, dpp_ctrl
);
7250 Temp tmp
= bld
.vopc(aco_opcode::v_cmp_lg_u32
, bld
.def(bld
.lm
), Operand(0u), src
);
7251 emit_wqm(ctx
, tmp
, dst
);
7252 } else if (instr
->dest
.ssa
.bit_size
== 32) {
7254 if (ctx
->program
->chip_class
>= GFX8
)
7255 tmp
= bld
.vop1_dpp(aco_opcode::v_mov_b32
, bld
.def(v1
), src
, dpp_ctrl
);
7257 tmp
= bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), src
, dpp_ctrl
);
7258 emit_wqm(ctx
, tmp
, dst
);
7259 } else if (instr
->dest
.ssa
.bit_size
== 64) {
7260 Temp lo
= bld
.tmp(v1
), hi
= bld
.tmp(v1
);
7261 bld
.pseudo(aco_opcode::p_split_vector
, Definition(lo
), Definition(hi
), src
);
7262 if (ctx
->program
->chip_class
>= GFX8
) {
7263 lo
= emit_wqm(ctx
, bld
.vop1_dpp(aco_opcode::v_mov_b32
, bld
.def(v1
), lo
, dpp_ctrl
));
7264 hi
= emit_wqm(ctx
, bld
.vop1_dpp(aco_opcode::v_mov_b32
, bld
.def(v1
), hi
, dpp_ctrl
));
7266 lo
= emit_wqm(ctx
, bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), lo
, dpp_ctrl
));
7267 hi
= emit_wqm(ctx
, bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), hi
, dpp_ctrl
));
7269 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lo
, hi
);
7270 emit_split_vector(ctx
, dst
, 2);
7272 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
7273 nir_print_instr(&instr
->instr
, stderr
);
7274 fprintf(stderr
, "\n");
7278 case nir_intrinsic_masked_swizzle_amd
: {
7279 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
7280 if (!ctx
->divergent_vals
[instr
->dest
.ssa
.index
]) {
7281 emit_uniform_subgroup(ctx
, instr
, src
);
7284 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7285 uint32_t mask
= nir_intrinsic_swizzle_mask(instr
);
7286 if (dst
.regClass() == v1
) {
7288 bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), src
, mask
, 0, false),
7290 } else if (dst
.regClass() == v2
) {
7291 Temp lo
= bld
.tmp(v1
), hi
= bld
.tmp(v1
);
7292 bld
.pseudo(aco_opcode::p_split_vector
, Definition(lo
), Definition(hi
), src
);
7293 lo
= emit_wqm(ctx
, bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), lo
, mask
, 0, false));
7294 hi
= emit_wqm(ctx
, bld
.ds(aco_opcode::ds_swizzle_b32
, bld
.def(v1
), hi
, mask
, 0, false));
7295 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lo
, hi
);
7296 emit_split_vector(ctx
, dst
, 2);
7298 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
7299 nir_print_instr(&instr
->instr
, stderr
);
7300 fprintf(stderr
, "\n");
7304 case nir_intrinsic_write_invocation_amd
: {
7305 Temp src
= as_vgpr(ctx
, get_ssa_temp(ctx
, instr
->src
[0].ssa
));
7306 Temp val
= bld
.as_uniform(get_ssa_temp(ctx
, instr
->src
[1].ssa
));
7307 Temp lane
= bld
.as_uniform(get_ssa_temp(ctx
, instr
->src
[2].ssa
));
7308 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7309 if (dst
.regClass() == v1
) {
7310 /* src2 is ignored for writelane. RA assigns the same reg for dst */
7311 emit_wqm(ctx
, bld
.writelane(bld
.def(v1
), val
, lane
, src
), dst
);
7312 } else if (dst
.regClass() == v2
) {
7313 Temp src_lo
= bld
.tmp(v1
), src_hi
= bld
.tmp(v1
);
7314 Temp val_lo
= bld
.tmp(s1
), val_hi
= bld
.tmp(s1
);
7315 bld
.pseudo(aco_opcode::p_split_vector
, Definition(src_lo
), Definition(src_hi
), src
);
7316 bld
.pseudo(aco_opcode::p_split_vector
, Definition(val_lo
), Definition(val_hi
), val
);
7317 Temp lo
= emit_wqm(ctx
, bld
.writelane(bld
.def(v1
), val_lo
, lane
, src_hi
));
7318 Temp hi
= emit_wqm(ctx
, bld
.writelane(bld
.def(v1
), val_hi
, lane
, src_hi
));
7319 bld
.pseudo(aco_opcode::p_create_vector
, Definition(dst
), lo
, hi
);
7320 emit_split_vector(ctx
, dst
, 2);
7322 fprintf(stderr
, "Unimplemented NIR instr bit size: ");
7323 nir_print_instr(&instr
->instr
, stderr
);
7324 fprintf(stderr
, "\n");
7328 case nir_intrinsic_mbcnt_amd
: {
7329 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
7330 RegClass rc
= RegClass(src
.type(), 1);
7331 Temp mask_lo
= bld
.tmp(rc
), mask_hi
= bld
.tmp(rc
);
7332 bld
.pseudo(aco_opcode::p_split_vector
, Definition(mask_lo
), Definition(mask_hi
), src
);
7333 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7334 Temp wqm_tmp
= emit_mbcnt(ctx
, bld
.def(v1
), Operand(mask_lo
), Operand(mask_hi
));
7335 emit_wqm(ctx
, wqm_tmp
, dst
);
7338 case nir_intrinsic_load_helper_invocation
: {
7339 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7340 bld
.pseudo(aco_opcode::p_load_helper
, Definition(dst
));
7341 ctx
->block
->kind
|= block_kind_needs_lowering
;
7342 ctx
->program
->needs_exact
= true;
7345 case nir_intrinsic_is_helper_invocation
: {
7346 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7347 bld
.pseudo(aco_opcode::p_is_helper
, Definition(dst
));
7348 ctx
->block
->kind
|= block_kind_needs_lowering
;
7349 ctx
->program
->needs_exact
= true;
7352 case nir_intrinsic_demote
:
7353 bld
.pseudo(aco_opcode::p_demote_to_helper
, Operand(-1u));
7355 if (ctx
->cf_info
.loop_nest_depth
|| ctx
->cf_info
.parent_if
.is_divergent
)
7356 ctx
->cf_info
.exec_potentially_empty_discard
= true;
7357 ctx
->block
->kind
|= block_kind_uses_demote
;
7358 ctx
->program
->needs_exact
= true;
7360 case nir_intrinsic_demote_if
: {
7361 Temp src
= get_ssa_temp(ctx
, instr
->src
[0].ssa
);
7362 assert(src
.regClass() == bld
.lm
);
7363 Temp cond
= bld
.sop2(Builder::s_and
, bld
.def(bld
.lm
), bld
.def(s1
, scc
), src
, Operand(exec
, bld
.lm
));
7364 bld
.pseudo(aco_opcode::p_demote_to_helper
, cond
);
7366 if (ctx
->cf_info
.loop_nest_depth
|| ctx
->cf_info
.parent_if
.is_divergent
)
7367 ctx
->cf_info
.exec_potentially_empty_discard
= true;
7368 ctx
->block
->kind
|= block_kind_uses_demote
;
7369 ctx
->program
->needs_exact
= true;
7372 case nir_intrinsic_first_invocation
: {
7373 emit_wqm(ctx
, bld
.sop1(Builder::s_ff1_i32
, bld
.def(s1
), Operand(exec
, bld
.lm
)),
7374 get_ssa_temp(ctx
, &instr
->dest
.ssa
));
7377 case nir_intrinsic_shader_clock
:
7378 bld
.smem(aco_opcode::s_memtime
, Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)), false);
7379 emit_split_vector(ctx
, get_ssa_temp(ctx
, &instr
->dest
.ssa
), 2);
7381 case nir_intrinsic_load_vertex_id_zero_base
: {
7382 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7383 bld
.copy(Definition(dst
), get_arg(ctx
, ctx
->args
->ac
.vertex_id
));
7386 case nir_intrinsic_load_first_vertex
: {
7387 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7388 bld
.copy(Definition(dst
), get_arg(ctx
, ctx
->args
->ac
.base_vertex
));
7391 case nir_intrinsic_load_base_instance
: {
7392 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7393 bld
.copy(Definition(dst
), get_arg(ctx
, ctx
->args
->ac
.start_instance
));
7396 case nir_intrinsic_load_instance_id
: {
7397 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7398 bld
.copy(Definition(dst
), get_arg(ctx
, ctx
->args
->ac
.instance_id
));
7401 case nir_intrinsic_load_draw_id
: {
7402 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7403 bld
.copy(Definition(dst
), get_arg(ctx
, ctx
->args
->ac
.draw_id
));
7406 case nir_intrinsic_load_invocation_id
: {
7407 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7409 if (ctx
->shader
->info
.stage
== MESA_SHADER_GEOMETRY
) {
7410 if (ctx
->options
->chip_class
>= GFX10
)
7411 bld
.vop2_e64(aco_opcode::v_and_b32
, Definition(dst
), Operand(127u), get_arg(ctx
, ctx
->args
->ac
.gs_invocation_id
));
7413 bld
.copy(Definition(dst
), get_arg(ctx
, ctx
->args
->ac
.gs_invocation_id
));
7414 } else if (ctx
->shader
->info
.stage
== MESA_SHADER_TESS_CTRL
) {
7415 bld
.vop3(aco_opcode::v_bfe_u32
, Definition(dst
),
7416 get_arg(ctx
, ctx
->args
->ac
.tcs_rel_ids
), Operand(8u), Operand(5u));
7418 unreachable("Unsupported stage for load_invocation_id");
7423 case nir_intrinsic_load_primitive_id
: {
7424 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7426 switch (ctx
->shader
->info
.stage
) {
7427 case MESA_SHADER_GEOMETRY
:
7428 bld
.copy(Definition(dst
), get_arg(ctx
, ctx
->args
->ac
.gs_prim_id
));
7430 case MESA_SHADER_TESS_CTRL
:
7431 bld
.copy(Definition(dst
), get_arg(ctx
, ctx
->args
->ac
.tcs_patch_id
));
7433 case MESA_SHADER_TESS_EVAL
:
7434 bld
.copy(Definition(dst
), get_arg(ctx
, ctx
->args
->ac
.tes_patch_id
));
7437 unreachable("Unimplemented shader stage for nir_intrinsic_load_primitive_id");
7442 case nir_intrinsic_load_patch_vertices_in
: {
7443 assert(ctx
->shader
->info
.stage
== MESA_SHADER_TESS_CTRL
||
7444 ctx
->shader
->info
.stage
== MESA_SHADER_TESS_EVAL
);
7446 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7447 bld
.copy(Definition(dst
), Operand(ctx
->args
->options
->key
.tcs
.input_vertices
));
7450 case nir_intrinsic_emit_vertex_with_counter
: {
7451 visit_emit_vertex_with_counter(ctx
, instr
);
7454 case nir_intrinsic_end_primitive_with_counter
: {
7455 unsigned stream
= nir_intrinsic_stream_id(instr
);
7456 bld
.sopp(aco_opcode::s_sendmsg
, bld
.m0(ctx
->gs_wave_id
), -1, sendmsg_gs(true, false, stream
));
7459 case nir_intrinsic_set_vertex_count
: {
7460 /* unused, the HW keeps track of this for us */
7464 fprintf(stderr
, "Unimplemented intrinsic instr: ");
7465 nir_print_instr(&instr
->instr
, stderr
);
7466 fprintf(stderr
, "\n");
7474 void tex_fetch_ptrs(isel_context
*ctx
, nir_tex_instr
*instr
,
7475 Temp
*res_ptr
, Temp
*samp_ptr
, Temp
*fmask_ptr
,
7476 enum glsl_base_type
*stype
)
7478 nir_deref_instr
*texture_deref_instr
= NULL
;
7479 nir_deref_instr
*sampler_deref_instr
= NULL
;
7482 for (unsigned i
= 0; i
< instr
->num_srcs
; i
++) {
7483 switch (instr
->src
[i
].src_type
) {
7484 case nir_tex_src_texture_deref
:
7485 texture_deref_instr
= nir_src_as_deref(instr
->src
[i
].src
);
7487 case nir_tex_src_sampler_deref
:
7488 sampler_deref_instr
= nir_src_as_deref(instr
->src
[i
].src
);
7490 case nir_tex_src_plane
:
7491 plane
= nir_src_as_int(instr
->src
[i
].src
);
7498 *stype
= glsl_get_sampler_result_type(texture_deref_instr
->type
);
7500 if (!sampler_deref_instr
)
7501 sampler_deref_instr
= texture_deref_instr
;
7504 assert(instr
->op
!= nir_texop_txf_ms
&&
7505 instr
->op
!= nir_texop_samples_identical
);
7506 assert(instr
->sampler_dim
!= GLSL_SAMPLER_DIM_BUF
);
7507 *res_ptr
= get_sampler_desc(ctx
, texture_deref_instr
, (aco_descriptor_type
)(ACO_DESC_PLANE_0
+ plane
), instr
, false, false);
7508 } else if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_BUF
) {
7509 *res_ptr
= get_sampler_desc(ctx
, texture_deref_instr
, ACO_DESC_BUFFER
, instr
, false, false);
7510 } else if (instr
->op
== nir_texop_fragment_mask_fetch
) {
7511 *res_ptr
= get_sampler_desc(ctx
, texture_deref_instr
, ACO_DESC_FMASK
, instr
, false, false);
7513 *res_ptr
= get_sampler_desc(ctx
, texture_deref_instr
, ACO_DESC_IMAGE
, instr
, false, false);
7516 *samp_ptr
= get_sampler_desc(ctx
, sampler_deref_instr
, ACO_DESC_SAMPLER
, instr
, false, false);
7518 if (instr
->sampler_dim
< GLSL_SAMPLER_DIM_RECT
&& ctx
->options
->chip_class
< GFX8
) {
7519 /* fix sampler aniso on SI/CI: samp[0] = samp[0] & img[7] */
7520 Builder
bld(ctx
->program
, ctx
->block
);
7522 /* to avoid unnecessary moves, we split and recombine sampler and image */
7523 Temp img
[8] = {bld
.tmp(s1
), bld
.tmp(s1
), bld
.tmp(s1
), bld
.tmp(s1
),
7524 bld
.tmp(s1
), bld
.tmp(s1
), bld
.tmp(s1
), bld
.tmp(s1
)};
7525 Temp samp
[4] = {bld
.tmp(s1
), bld
.tmp(s1
), bld
.tmp(s1
), bld
.tmp(s1
)};
7526 bld
.pseudo(aco_opcode::p_split_vector
, Definition(img
[0]), Definition(img
[1]),
7527 Definition(img
[2]), Definition(img
[3]), Definition(img
[4]),
7528 Definition(img
[5]), Definition(img
[6]), Definition(img
[7]), *res_ptr
);
7529 bld
.pseudo(aco_opcode::p_split_vector
, Definition(samp
[0]), Definition(samp
[1]),
7530 Definition(samp
[2]), Definition(samp
[3]), *samp_ptr
);
7532 samp
[0] = bld
.sop2(aco_opcode::s_and_b32
, bld
.def(s1
), bld
.def(s1
, scc
), samp
[0], img
[7]);
7533 *res_ptr
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s8
),
7534 img
[0], img
[1], img
[2], img
[3],
7535 img
[4], img
[5], img
[6], img
[7]);
7536 *samp_ptr
= bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(s4
),
7537 samp
[0], samp
[1], samp
[2], samp
[3]);
7540 if (fmask_ptr
&& (instr
->op
== nir_texop_txf_ms
||
7541 instr
->op
== nir_texop_samples_identical
))
7542 *fmask_ptr
= get_sampler_desc(ctx
, texture_deref_instr
, ACO_DESC_FMASK
, instr
, false, false);
7545 void build_cube_select(isel_context
*ctx
, Temp ma
, Temp id
, Temp deriv
,
7546 Temp
*out_ma
, Temp
*out_sc
, Temp
*out_tc
)
7548 Builder
bld(ctx
->program
, ctx
->block
);
7550 Temp deriv_x
= emit_extract_vector(ctx
, deriv
, 0, v1
);
7551 Temp deriv_y
= emit_extract_vector(ctx
, deriv
, 1, v1
);
7552 Temp deriv_z
= emit_extract_vector(ctx
, deriv
, 2, v1
);
7554 Operand
neg_one(0xbf800000u
);
7555 Operand
one(0x3f800000u
);
7556 Operand
two(0x40000000u
);
7557 Operand
four(0x40800000u
);
7559 Temp is_ma_positive
= bld
.vopc(aco_opcode::v_cmp_le_f32
, bld
.hint_vcc(bld
.def(bld
.lm
)), Operand(0u), ma
);
7560 Temp sgn_ma
= bld
.vop2_e64(aco_opcode::v_cndmask_b32
, bld
.def(v1
), neg_one
, one
, is_ma_positive
);
7561 Temp neg_sgn_ma
= bld
.vop2(aco_opcode::v_sub_f32
, bld
.def(v1
), Operand(0u), sgn_ma
);
7563 Temp is_ma_z
= bld
.vopc(aco_opcode::v_cmp_le_f32
, bld
.hint_vcc(bld
.def(bld
.lm
)), four
, id
);
7564 Temp is_ma_y
= bld
.vopc(aco_opcode::v_cmp_le_f32
, bld
.def(bld
.lm
), two
, id
);
7565 is_ma_y
= bld
.sop2(Builder::s_andn2
, bld
.hint_vcc(bld
.def(bld
.lm
)), is_ma_y
, is_ma_z
);
7566 Temp is_not_ma_x
= bld
.sop2(aco_opcode::s_or_b64
, bld
.hint_vcc(bld
.def(bld
.lm
)), bld
.def(s1
, scc
), is_ma_z
, is_ma_y
);
7569 Temp tmp
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), deriv_z
, deriv_x
, is_not_ma_x
);
7570 Temp sgn
= bld
.vop2_e64(aco_opcode::v_cndmask_b32
, bld
.def(v1
),
7571 bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), neg_sgn_ma
, sgn_ma
, is_ma_z
),
7573 *out_sc
= bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), tmp
, sgn
);
7576 tmp
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), deriv_y
, deriv_z
, is_ma_y
);
7577 sgn
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), neg_one
, sgn_ma
, is_ma_y
);
7578 *out_tc
= bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), tmp
, sgn
);
7581 tmp
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
),
7582 bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), deriv_x
, deriv_y
, is_ma_y
),
7584 tmp
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(0x7fffffffu
), tmp
);
7585 *out_ma
= bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), two
, tmp
);
7588 void prepare_cube_coords(isel_context
*ctx
, std::vector
<Temp
>& coords
, Temp
* ddx
, Temp
* ddy
, bool is_deriv
, bool is_array
)
7590 Builder
bld(ctx
->program
, ctx
->block
);
7591 Temp ma
, tc
, sc
, id
;
7594 coords
[3] = bld
.vop1(aco_opcode::v_rndne_f32
, bld
.def(v1
), coords
[3]);
7596 // see comment in ac_prepare_cube_coords()
7597 if (ctx
->options
->chip_class
<= GFX8
)
7598 coords
[3] = bld
.vop2(aco_opcode::v_max_f32
, bld
.def(v1
), Operand(0u), coords
[3]);
7601 ma
= bld
.vop3(aco_opcode::v_cubema_f32
, bld
.def(v1
), coords
[0], coords
[1], coords
[2]);
7603 aco_ptr
<VOP3A_instruction
> vop3a
{create_instruction
<VOP3A_instruction
>(aco_opcode::v_rcp_f32
, asVOP3(Format::VOP1
), 1, 1)};
7604 vop3a
->operands
[0] = Operand(ma
);
7605 vop3a
->abs
[0] = true;
7606 Temp invma
= bld
.tmp(v1
);
7607 vop3a
->definitions
[0] = Definition(invma
);
7608 ctx
->block
->instructions
.emplace_back(std::move(vop3a
));
7610 sc
= bld
.vop3(aco_opcode::v_cubesc_f32
, bld
.def(v1
), coords
[0], coords
[1], coords
[2]);
7612 sc
= bld
.vop2(aco_opcode::v_madak_f32
, bld
.def(v1
), sc
, invma
, Operand(0x3fc00000u
/*1.5*/));
7614 tc
= bld
.vop3(aco_opcode::v_cubetc_f32
, bld
.def(v1
), coords
[0], coords
[1], coords
[2]);
7616 tc
= bld
.vop2(aco_opcode::v_madak_f32
, bld
.def(v1
), tc
, invma
, Operand(0x3fc00000u
/*1.5*/));
7618 id
= bld
.vop3(aco_opcode::v_cubeid_f32
, bld
.def(v1
), coords
[0], coords
[1], coords
[2]);
7621 sc
= bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), sc
, invma
);
7622 tc
= bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), tc
, invma
);
7624 for (unsigned i
= 0; i
< 2; i
++) {
7625 // see comment in ac_prepare_cube_coords()
7627 Temp deriv_sc
, deriv_tc
;
7628 build_cube_select(ctx
, ma
, id
, i
? *ddy
: *ddx
,
7629 &deriv_ma
, &deriv_sc
, &deriv_tc
);
7631 deriv_ma
= bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), deriv_ma
, invma
);
7633 Temp x
= bld
.vop2(aco_opcode::v_sub_f32
, bld
.def(v1
),
7634 bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), deriv_sc
, invma
),
7635 bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), deriv_ma
, sc
));
7636 Temp y
= bld
.vop2(aco_opcode::v_sub_f32
, bld
.def(v1
),
7637 bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), deriv_tc
, invma
),
7638 bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), deriv_ma
, tc
));
7639 *(i
? ddy
: ddx
) = bld
.pseudo(aco_opcode::p_create_vector
, bld
.def(v2
), x
, y
);
7642 sc
= bld
.vop2(aco_opcode::v_add_f32
, bld
.def(v1
), Operand(0x3fc00000u
/*1.5*/), sc
);
7643 tc
= bld
.vop2(aco_opcode::v_add_f32
, bld
.def(v1
), Operand(0x3fc00000u
/*1.5*/), tc
);
7647 id
= bld
.vop2(aco_opcode::v_madmk_f32
, bld
.def(v1
), coords
[3], id
, Operand(0x41000000u
/*8.0*/));
7654 void get_const_vec(nir_ssa_def
*vec
, nir_const_value
*cv
[4])
7656 if (vec
->parent_instr
->type
!= nir_instr_type_alu
)
7658 nir_alu_instr
*vec_instr
= nir_instr_as_alu(vec
->parent_instr
);
7659 if (vec_instr
->op
!= nir_op_vec(vec
->num_components
))
7662 for (unsigned i
= 0; i
< vec
->num_components
; i
++) {
7663 cv
[i
] = vec_instr
->src
[i
].swizzle
[0] == 0 ?
7664 nir_src_as_const_value(vec_instr
->src
[i
].src
) : NULL
;
7668 void visit_tex(isel_context
*ctx
, nir_tex_instr
*instr
)
7670 Builder
bld(ctx
->program
, ctx
->block
);
7671 bool has_bias
= false, has_lod
= false, level_zero
= false, has_compare
= false,
7672 has_offset
= false, has_ddx
= false, has_ddy
= false, has_derivs
= false, has_sample_index
= false;
7673 Temp resource
, sampler
, fmask_ptr
, bias
= Temp(), compare
= Temp(), sample_index
= Temp(),
7674 lod
= Temp(), offset
= Temp(), ddx
= Temp(), ddy
= Temp();
7675 std::vector
<Temp
> coords
;
7676 std::vector
<Temp
> derivs
;
7677 nir_const_value
*sample_index_cv
= NULL
;
7678 nir_const_value
*const_offset
[4] = {NULL
, NULL
, NULL
, NULL
};
7679 enum glsl_base_type stype
;
7680 tex_fetch_ptrs(ctx
, instr
, &resource
, &sampler
, &fmask_ptr
, &stype
);
7682 bool tg4_integer_workarounds
= ctx
->options
->chip_class
<= GFX8
&& instr
->op
== nir_texop_tg4
&&
7683 (stype
== GLSL_TYPE_UINT
|| stype
== GLSL_TYPE_INT
);
7684 bool tg4_integer_cube_workaround
= tg4_integer_workarounds
&&
7685 instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
;
7687 for (unsigned i
= 0; i
< instr
->num_srcs
; i
++) {
7688 switch (instr
->src
[i
].src_type
) {
7689 case nir_tex_src_coord
: {
7690 Temp coord
= get_ssa_temp(ctx
, instr
->src
[i
].src
.ssa
);
7691 for (unsigned i
= 0; i
< coord
.size(); i
++)
7692 coords
.emplace_back(emit_extract_vector(ctx
, coord
, i
, v1
));
7695 case nir_tex_src_bias
:
7696 if (instr
->op
== nir_texop_txb
) {
7697 bias
= get_ssa_temp(ctx
, instr
->src
[i
].src
.ssa
);
7701 case nir_tex_src_lod
: {
7702 nir_const_value
*val
= nir_src_as_const_value(instr
->src
[i
].src
);
7704 if (val
&& val
->f32
<= 0.0) {
7707 lod
= get_ssa_temp(ctx
, instr
->src
[i
].src
.ssa
);
7712 case nir_tex_src_comparator
:
7713 if (instr
->is_shadow
) {
7714 compare
= get_ssa_temp(ctx
, instr
->src
[i
].src
.ssa
);
7718 case nir_tex_src_offset
:
7719 offset
= get_ssa_temp(ctx
, instr
->src
[i
].src
.ssa
);
7720 get_const_vec(instr
->src
[i
].src
.ssa
, const_offset
);
7723 case nir_tex_src_ddx
:
7724 ddx
= get_ssa_temp(ctx
, instr
->src
[i
].src
.ssa
);
7727 case nir_tex_src_ddy
:
7728 ddy
= get_ssa_temp(ctx
, instr
->src
[i
].src
.ssa
);
7731 case nir_tex_src_ms_index
:
7732 sample_index
= get_ssa_temp(ctx
, instr
->src
[i
].src
.ssa
);
7733 sample_index_cv
= nir_src_as_const_value(instr
->src
[i
].src
);
7734 has_sample_index
= true;
7736 case nir_tex_src_texture_offset
:
7737 case nir_tex_src_sampler_offset
:
7743 if (instr
->op
== nir_texop_txs
&& instr
->sampler_dim
== GLSL_SAMPLER_DIM_BUF
)
7744 return get_buffer_size(ctx
, resource
, get_ssa_temp(ctx
, &instr
->dest
.ssa
), true);
7746 if (instr
->op
== nir_texop_texture_samples
) {
7747 Temp dword3
= emit_extract_vector(ctx
, resource
, 3, s1
);
7749 Temp samples_log2
= bld
.sop2(aco_opcode::s_bfe_u32
, bld
.def(s1
), bld
.def(s1
, scc
), dword3
, Operand(16u | 4u<<16));
7750 Temp samples
= bld
.sop2(aco_opcode::s_lshl_b32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(1u), samples_log2
);
7751 Temp type
= bld
.sop2(aco_opcode::s_bfe_u32
, bld
.def(s1
), bld
.def(s1
, scc
), dword3
, Operand(28u | 4u<<16 /* offset=28, width=4 */));
7752 Temp is_msaa
= bld
.sopc(aco_opcode::s_cmp_ge_u32
, bld
.def(s1
, scc
), type
, Operand(14u));
7754 bld
.sop2(aco_opcode::s_cselect_b32
, Definition(get_ssa_temp(ctx
, &instr
->dest
.ssa
)),
7755 samples
, Operand(1u), bld
.scc(is_msaa
));
7759 if (has_offset
&& instr
->op
!= nir_texop_txf
&& instr
->op
!= nir_texop_txf_ms
) {
7760 aco_ptr
<Instruction
> tmp_instr
;
7761 Temp acc
, pack
= Temp();
7763 uint32_t pack_const
= 0;
7764 for (unsigned i
= 0; i
< offset
.size(); i
++) {
7765 if (!const_offset
[i
])
7767 pack_const
|= (const_offset
[i
]->u32
& 0x3Fu
) << (8u * i
);
7770 if (offset
.type() == RegType::sgpr
) {
7771 for (unsigned i
= 0; i
< offset
.size(); i
++) {
7772 if (const_offset
[i
])
7775 acc
= emit_extract_vector(ctx
, offset
, i
, s1
);
7776 acc
= bld
.sop2(aco_opcode::s_and_b32
, bld
.def(s1
), bld
.def(s1
, scc
), acc
, Operand(0x3Fu
));
7779 acc
= bld
.sop2(aco_opcode::s_lshl_b32
, bld
.def(s1
), bld
.def(s1
, scc
), acc
, Operand(8u * i
));
7782 if (pack
== Temp()) {
7785 pack
= bld
.sop2(aco_opcode::s_or_b32
, bld
.def(s1
), bld
.def(s1
, scc
), pack
, acc
);
7789 if (pack_const
&& pack
!= Temp())
7790 pack
= bld
.sop2(aco_opcode::s_or_b32
, bld
.def(s1
), bld
.def(s1
, scc
), Operand(pack_const
), pack
);
7792 for (unsigned i
= 0; i
< offset
.size(); i
++) {
7793 if (const_offset
[i
])
7796 acc
= emit_extract_vector(ctx
, offset
, i
, v1
);
7797 acc
= bld
.vop2(aco_opcode::v_and_b32
, bld
.def(v1
), Operand(0x3Fu
), acc
);
7800 acc
= bld
.vop2(aco_opcode::v_lshlrev_b32
, bld
.def(v1
), Operand(8u * i
), acc
);
7803 if (pack
== Temp()) {
7806 pack
= bld
.vop2(aco_opcode::v_or_b32
, bld
.def(v1
), pack
, acc
);
7810 if (pack_const
&& pack
!= Temp())
7811 pack
= bld
.sop2(aco_opcode::v_or_b32
, bld
.def(v1
), Operand(pack_const
), pack
);
7813 if (pack_const
&& pack
== Temp())
7814 offset
= bld
.vop1(aco_opcode::v_mov_b32
, bld
.def(v1
), Operand(pack_const
));
7815 else if (pack
== Temp())
7821 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
&& instr
->coord_components
)
7822 prepare_cube_coords(ctx
, coords
, &ddx
, &ddy
, instr
->op
== nir_texop_txd
, instr
->is_array
&& instr
->op
!= nir_texop_lod
);
7824 /* pack derivatives */
7825 if (has_ddx
|| has_ddy
) {
7826 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_1D
&& ctx
->options
->chip_class
== GFX9
) {
7827 assert(has_ddx
&& has_ddy
&& ddx
.size() == 1 && ddy
.size() == 1);
7828 Temp zero
= bld
.copy(bld
.def(v1
), Operand(0u));
7829 derivs
= {ddy
, zero
, ddy
, zero
};
7831 for (unsigned i
= 0; has_ddx
&& i
< ddx
.size(); i
++)
7832 derivs
.emplace_back(emit_extract_vector(ctx
, ddx
, i
, v1
));
7833 for (unsigned i
= 0; has_ddy
&& i
< ddy
.size(); i
++)
7834 derivs
.emplace_back(emit_extract_vector(ctx
, ddy
, i
, v1
));
7839 if (instr
->coord_components
> 1 &&
7840 instr
->sampler_dim
== GLSL_SAMPLER_DIM_1D
&&
7842 instr
->op
!= nir_texop_txf
)
7843 coords
[1] = bld
.vop1(aco_opcode::v_rndne_f32
, bld
.def(v1
), coords
[1]);
7845 if (instr
->coord_components
> 2 &&
7846 (instr
->sampler_dim
== GLSL_SAMPLER_DIM_2D
||
7847 instr
->sampler_dim
== GLSL_SAMPLER_DIM_MS
||
7848 instr
->sampler_dim
== GLSL_SAMPLER_DIM_SUBPASS
||
7849 instr
->sampler_dim
== GLSL_SAMPLER_DIM_SUBPASS_MS
) &&
7851 instr
->op
!= nir_texop_txf
&&
7852 instr
->op
!= nir_texop_txf_ms
&&
7853 instr
->op
!= nir_texop_fragment_fetch
&&
7854 instr
->op
!= nir_texop_fragment_mask_fetch
)
7855 coords
[2] = bld
.vop1(aco_opcode::v_rndne_f32
, bld
.def(v1
), coords
[2]);
7857 if (ctx
->options
->chip_class
== GFX9
&&
7858 instr
->sampler_dim
== GLSL_SAMPLER_DIM_1D
&&
7859 instr
->op
!= nir_texop_lod
&& instr
->coord_components
) {
7860 assert(coords
.size() > 0 && coords
.size() < 3);
7862 coords
.insert(std::next(coords
.begin()), bld
.copy(bld
.def(v1
), instr
->op
== nir_texop_txf
?
7863 Operand((uint32_t) 0) :
7864 Operand((uint32_t) 0x3f000000)));
7867 bool da
= should_declare_array(ctx
, instr
->sampler_dim
, instr
->is_array
);
7869 if (instr
->op
== nir_texop_samples_identical
)
7870 resource
= fmask_ptr
;
7872 else if ((instr
->sampler_dim
== GLSL_SAMPLER_DIM_MS
||
7873 instr
->sampler_dim
== GLSL_SAMPLER_DIM_SUBPASS_MS
) &&
7874 instr
->op
!= nir_texop_txs
&&
7875 instr
->op
!= nir_texop_fragment_fetch
&&
7876 instr
->op
!= nir_texop_fragment_mask_fetch
) {
7877 assert(has_sample_index
);
7878 Operand
op(sample_index
);
7879 if (sample_index_cv
)
7880 op
= Operand(sample_index_cv
->u32
);
7881 sample_index
= adjust_sample_index_using_fmask(ctx
, da
, coords
, op
, fmask_ptr
);
7884 if (has_offset
&& (instr
->op
== nir_texop_txf
|| instr
->op
== nir_texop_txf_ms
)) {
7885 for (unsigned i
= 0; i
< std::min(offset
.size(), instr
->coord_components
); i
++) {
7886 Temp off
= emit_extract_vector(ctx
, offset
, i
, v1
);
7887 coords
[i
] = bld
.vadd32(bld
.def(v1
), coords
[i
], off
);
7892 /* Build tex instruction */
7893 unsigned dmask
= nir_ssa_def_components_read(&instr
->dest
.ssa
);
7894 unsigned dim
= ctx
->options
->chip_class
>= GFX10
&& instr
->sampler_dim
!= GLSL_SAMPLER_DIM_BUF
7895 ? ac_get_sampler_dim(ctx
->options
->chip_class
, instr
->sampler_dim
, instr
->is_array
)
7897 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
7900 /* gather4 selects the component by dmask and always returns vec4 */
7901 if (instr
->op
== nir_texop_tg4
) {
7902 assert(instr
->dest
.ssa
.num_components
== 4);
7903 if (instr
->is_shadow
)
7906 dmask
= 1 << instr
->component
;
7907 if (tg4_integer_cube_workaround
|| dst
.type() == RegType::sgpr
)
7908 tmp_dst
= bld
.tmp(v4
);
7909 } else if (instr
->op
== nir_texop_samples_identical
) {
7910 tmp_dst
= bld
.tmp(v1
);
7911 } else if (util_bitcount(dmask
) != instr
->dest
.ssa
.num_components
|| dst
.type() == RegType::sgpr
) {
7912 tmp_dst
= bld
.tmp(RegClass(RegType::vgpr
, util_bitcount(dmask
)));
7915 aco_ptr
<MIMG_instruction
> tex
;
7916 if (instr
->op
== nir_texop_txs
|| instr
->op
== nir_texop_query_levels
) {
7918 lod
= bld
.vop1(aco_opcode::v_mov_b32
, bld
.def(v1
), Operand(0u));
7920 bool div_by_6
= instr
->op
== nir_texop_txs
&&
7921 instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
&&
7924 if (tmp_dst
.id() == dst
.id() && div_by_6
)
7925 tmp_dst
= bld
.tmp(tmp_dst
.regClass());
7927 tex
.reset(create_instruction
<MIMG_instruction
>(aco_opcode::image_get_resinfo
, Format::MIMG
, 3, 1));
7928 tex
->operands
[0] = Operand(resource
);
7929 tex
->operands
[1] = Operand(s4
); /* no sampler */
7930 tex
->operands
[2] = Operand(as_vgpr(ctx
,lod
));
7931 if (ctx
->options
->chip_class
== GFX9
&&
7932 instr
->op
== nir_texop_txs
&&
7933 instr
->sampler_dim
== GLSL_SAMPLER_DIM_1D
&&
7935 tex
->dmask
= (dmask
& 0x1) | ((dmask
& 0x2) << 1);
7936 } else if (instr
->op
== nir_texop_query_levels
) {
7937 tex
->dmask
= 1 << 3;
7942 tex
->definitions
[0] = Definition(tmp_dst
);
7944 tex
->can_reorder
= true;
7945 ctx
->block
->instructions
.emplace_back(std::move(tex
));
7948 /* divide 3rd value by 6 by multiplying with magic number */
7949 emit_split_vector(ctx
, tmp_dst
, tmp_dst
.size());
7950 Temp c
= bld
.copy(bld
.def(s1
), Operand((uint32_t) 0x2AAAAAAB));
7951 Temp by_6
= bld
.vop3(aco_opcode::v_mul_hi_i32
, bld
.def(v1
), emit_extract_vector(ctx
, tmp_dst
, 2, v1
), c
);
7952 assert(instr
->dest
.ssa
.num_components
== 3);
7953 Temp tmp
= dst
.type() == RegType::vgpr
? dst
: bld
.tmp(v3
);
7954 tmp_dst
= bld
.pseudo(aco_opcode::p_create_vector
, Definition(tmp
),
7955 emit_extract_vector(ctx
, tmp_dst
, 0, v1
),
7956 emit_extract_vector(ctx
, tmp_dst
, 1, v1
),
7961 expand_vector(ctx
, tmp_dst
, dst
, instr
->dest
.ssa
.num_components
, dmask
);
7965 Temp tg4_compare_cube_wa64
= Temp();
7967 if (tg4_integer_workarounds
) {
7968 tex
.reset(create_instruction
<MIMG_instruction
>(aco_opcode::image_get_resinfo
, Format::MIMG
, 3, 1));
7969 tex
->operands
[0] = Operand(resource
);
7970 tex
->operands
[1] = Operand(s4
); /* no sampler */
7971 tex
->operands
[2] = bld
.vop1(aco_opcode::v_mov_b32
, bld
.def(v1
), Operand(0u));
7975 Temp size
= bld
.tmp(v2
);
7976 tex
->definitions
[0] = Definition(size
);
7977 tex
->can_reorder
= true;
7978 ctx
->block
->instructions
.emplace_back(std::move(tex
));
7979 emit_split_vector(ctx
, size
, size
.size());
7982 for (unsigned i
= 0; i
< 2; i
++) {
7983 half_texel
[i
] = emit_extract_vector(ctx
, size
, i
, v1
);
7984 half_texel
[i
] = bld
.vop1(aco_opcode::v_cvt_f32_i32
, bld
.def(v1
), half_texel
[i
]);
7985 half_texel
[i
] = bld
.vop1(aco_opcode::v_rcp_iflag_f32
, bld
.def(v1
), half_texel
[i
]);
7986 half_texel
[i
] = bld
.vop2(aco_opcode::v_mul_f32
, bld
.def(v1
), Operand(0xbf000000/*-0.5*/), half_texel
[i
]);
7989 Temp new_coords
[2] = {
7990 bld
.vop2(aco_opcode::v_add_f32
, bld
.def(v1
), coords
[0], half_texel
[0]),
7991 bld
.vop2(aco_opcode::v_add_f32
, bld
.def(v1
), coords
[1], half_texel
[1])
7994 if (tg4_integer_cube_workaround
) {
7995 // see comment in ac_nir_to_llvm.c's lower_gather4_integer()
7996 Temp desc
[resource
.size()];
7997 aco_ptr
<Instruction
> split
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_split_vector
,
7998 Format::PSEUDO
, 1, resource
.size())};
7999 split
->operands
[0] = Operand(resource
);
8000 for (unsigned i
= 0; i
< resource
.size(); i
++) {
8001 desc
[i
] = bld
.tmp(s1
);
8002 split
->definitions
[i
] = Definition(desc
[i
]);
8004 ctx
->block
->instructions
.emplace_back(std::move(split
));
8006 Temp dfmt
= bld
.sop2(aco_opcode::s_bfe_u32
, bld
.def(s1
), bld
.def(s1
, scc
), desc
[1], Operand(20u | (6u << 16)));
8007 Temp compare_cube_wa
= bld
.sopc(aco_opcode::s_cmp_eq_u32
, bld
.def(s1
, scc
), dfmt
,
8008 Operand((uint32_t)V_008F14_IMG_DATA_FORMAT_8_8_8_8
));
8011 if (stype
== GLSL_TYPE_UINT
) {
8012 nfmt
= bld
.sop2(aco_opcode::s_cselect_b32
, bld
.def(s1
),
8013 Operand((uint32_t)V_008F14_IMG_NUM_FORMAT_USCALED
),
8014 Operand((uint32_t)V_008F14_IMG_NUM_FORMAT_UINT
),
8015 bld
.scc(compare_cube_wa
));
8017 nfmt
= bld
.sop2(aco_opcode::s_cselect_b32
, bld
.def(s1
),
8018 Operand((uint32_t)V_008F14_IMG_NUM_FORMAT_SSCALED
),
8019 Operand((uint32_t)V_008F14_IMG_NUM_FORMAT_SINT
),
8020 bld
.scc(compare_cube_wa
));
8022 tg4_compare_cube_wa64
= bld
.tmp(bld
.lm
);
8023 bool_to_vector_condition(ctx
, compare_cube_wa
, tg4_compare_cube_wa64
);
8025 nfmt
= bld
.sop2(aco_opcode::s_lshl_b32
, bld
.def(s1
), bld
.def(s1
, scc
), nfmt
, Operand(26u));
8027 desc
[1] = bld
.sop2(aco_opcode::s_and_b32
, bld
.def(s1
), bld
.def(s1
, scc
), desc
[1],
8028 Operand((uint32_t)C_008F14_NUM_FORMAT
));
8029 desc
[1] = bld
.sop2(aco_opcode::s_or_b32
, bld
.def(s1
), bld
.def(s1
, scc
), desc
[1], nfmt
);
8031 aco_ptr
<Instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
,
8032 Format::PSEUDO
, resource
.size(), 1)};
8033 for (unsigned i
= 0; i
< resource
.size(); i
++)
8034 vec
->operands
[i
] = Operand(desc
[i
]);
8035 resource
= bld
.tmp(resource
.regClass());
8036 vec
->definitions
[0] = Definition(resource
);
8037 ctx
->block
->instructions
.emplace_back(std::move(vec
));
8039 new_coords
[0] = bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
),
8040 new_coords
[0], coords
[0], tg4_compare_cube_wa64
);
8041 new_coords
[1] = bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
),
8042 new_coords
[1], coords
[1], tg4_compare_cube_wa64
);
8044 coords
[0] = new_coords
[0];
8045 coords
[1] = new_coords
[1];
8048 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_BUF
) {
8049 //FIXME: if (ctx->abi->gfx9_stride_size_workaround) return ac_build_buffer_load_format_gfx9_safe()
8051 assert(coords
.size() == 1);
8052 unsigned last_bit
= util_last_bit(nir_ssa_def_components_read(&instr
->dest
.ssa
));
8056 op
= aco_opcode::buffer_load_format_x
; break;
8058 op
= aco_opcode::buffer_load_format_xy
; break;
8060 op
= aco_opcode::buffer_load_format_xyz
; break;
8062 op
= aco_opcode::buffer_load_format_xyzw
; break;
8064 unreachable("Tex instruction loads more than 4 components.");
8067 /* if the instruction return value matches exactly the nir dest ssa, we can use it directly */
8068 if (last_bit
== instr
->dest
.ssa
.num_components
&& dst
.type() == RegType::vgpr
)
8071 tmp_dst
= bld
.tmp(RegType::vgpr
, last_bit
);
8073 aco_ptr
<MUBUF_instruction
> mubuf
{create_instruction
<MUBUF_instruction
>(op
, Format::MUBUF
, 3, 1)};
8074 mubuf
->operands
[0] = Operand(resource
);
8075 mubuf
->operands
[1] = Operand(coords
[0]);
8076 mubuf
->operands
[2] = Operand((uint32_t) 0);
8077 mubuf
->definitions
[0] = Definition(tmp_dst
);
8078 mubuf
->idxen
= true;
8079 mubuf
->can_reorder
= true;
8080 ctx
->block
->instructions
.emplace_back(std::move(mubuf
));
8082 expand_vector(ctx
, tmp_dst
, dst
, instr
->dest
.ssa
.num_components
, (1 << last_bit
) - 1);
8086 /* gather MIMG address components */
8087 std::vector
<Temp
> args
;
8089 args
.emplace_back(offset
);
8091 args
.emplace_back(bias
);
8093 args
.emplace_back(compare
);
8095 args
.insert(args
.end(), derivs
.begin(), derivs
.end());
8097 args
.insert(args
.end(), coords
.begin(), coords
.end());
8098 if (has_sample_index
)
8099 args
.emplace_back(sample_index
);
8101 args
.emplace_back(lod
);
8103 Temp arg
= bld
.tmp(RegClass(RegType::vgpr
, args
.size()));
8104 aco_ptr
<Instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, args
.size(), 1)};
8105 vec
->definitions
[0] = Definition(arg
);
8106 for (unsigned i
= 0; i
< args
.size(); i
++)
8107 vec
->operands
[i
] = Operand(args
[i
]);
8108 ctx
->block
->instructions
.emplace_back(std::move(vec
));
8111 if (instr
->op
== nir_texop_txf
||
8112 instr
->op
== nir_texop_txf_ms
||
8113 instr
->op
== nir_texop_samples_identical
||
8114 instr
->op
== nir_texop_fragment_fetch
||
8115 instr
->op
== nir_texop_fragment_mask_fetch
) {
8116 aco_opcode op
= level_zero
|| instr
->sampler_dim
== GLSL_SAMPLER_DIM_MS
|| instr
->sampler_dim
== GLSL_SAMPLER_DIM_SUBPASS_MS
? aco_opcode::image_load
: aco_opcode::image_load_mip
;
8117 tex
.reset(create_instruction
<MIMG_instruction
>(op
, Format::MIMG
, 3, 1));
8118 tex
->operands
[0] = Operand(resource
);
8119 tex
->operands
[1] = Operand(s4
); /* no sampler */
8120 tex
->operands
[2] = Operand(arg
);
8125 tex
->definitions
[0] = Definition(tmp_dst
);
8126 tex
->can_reorder
= true;
8127 ctx
->block
->instructions
.emplace_back(std::move(tex
));
8129 if (instr
->op
== nir_texop_samples_identical
) {
8130 assert(dmask
== 1 && dst
.regClass() == v1
);
8131 assert(dst
.id() != tmp_dst
.id());
8133 Temp tmp
= bld
.tmp(bld
.lm
);
8134 bld
.vopc(aco_opcode::v_cmp_eq_u32
, Definition(tmp
), Operand(0u), tmp_dst
).def(0).setHint(vcc
);
8135 bld
.vop2_e64(aco_opcode::v_cndmask_b32
, Definition(dst
), Operand(0u), Operand((uint32_t)-1), tmp
);
8138 expand_vector(ctx
, tmp_dst
, dst
, instr
->dest
.ssa
.num_components
, dmask
);
8143 // TODO: would be better to do this by adding offsets, but needs the opcodes ordered.
8144 aco_opcode opcode
= aco_opcode::image_sample
;
8145 if (has_offset
) { /* image_sample_*_o */
8147 opcode
= aco_opcode::image_sample_c_o
;
8149 opcode
= aco_opcode::image_sample_c_d_o
;
8151 opcode
= aco_opcode::image_sample_c_b_o
;
8153 opcode
= aco_opcode::image_sample_c_lz_o
;
8155 opcode
= aco_opcode::image_sample_c_l_o
;
8157 opcode
= aco_opcode::image_sample_o
;
8159 opcode
= aco_opcode::image_sample_d_o
;
8161 opcode
= aco_opcode::image_sample_b_o
;
8163 opcode
= aco_opcode::image_sample_lz_o
;
8165 opcode
= aco_opcode::image_sample_l_o
;
8167 } else { /* no offset */
8169 opcode
= aco_opcode::image_sample_c
;
8171 opcode
= aco_opcode::image_sample_c_d
;
8173 opcode
= aco_opcode::image_sample_c_b
;
8175 opcode
= aco_opcode::image_sample_c_lz
;
8177 opcode
= aco_opcode::image_sample_c_l
;
8179 opcode
= aco_opcode::image_sample
;
8181 opcode
= aco_opcode::image_sample_d
;
8183 opcode
= aco_opcode::image_sample_b
;
8185 opcode
= aco_opcode::image_sample_lz
;
8187 opcode
= aco_opcode::image_sample_l
;
8191 if (instr
->op
== nir_texop_tg4
) {
8193 opcode
= aco_opcode::image_gather4_lz_o
;
8195 opcode
= aco_opcode::image_gather4_c_lz_o
;
8197 opcode
= aco_opcode::image_gather4_lz
;
8199 opcode
= aco_opcode::image_gather4_c_lz
;
8201 } else if (instr
->op
== nir_texop_lod
) {
8202 opcode
= aco_opcode::image_get_lod
;
8205 /* we don't need the bias, sample index, compare value or offset to be
8206 * computed in WQM but if the p_create_vector copies the coordinates, then it
8207 * needs to be in WQM */
8208 if (ctx
->stage
== fragment_fs
&&
8209 !has_derivs
&& !has_lod
&& !level_zero
&&
8210 instr
->sampler_dim
!= GLSL_SAMPLER_DIM_MS
&&
8211 instr
->sampler_dim
!= GLSL_SAMPLER_DIM_SUBPASS_MS
)
8212 arg
= emit_wqm(ctx
, arg
, bld
.tmp(arg
.regClass()), true);
8214 tex
.reset(create_instruction
<MIMG_instruction
>(opcode
, Format::MIMG
, 3, 1));
8215 tex
->operands
[0] = Operand(resource
);
8216 tex
->operands
[1] = Operand(sampler
);
8217 tex
->operands
[2] = Operand(arg
);
8221 tex
->definitions
[0] = Definition(tmp_dst
);
8222 tex
->can_reorder
= true;
8223 ctx
->block
->instructions
.emplace_back(std::move(tex
));
8225 if (tg4_integer_cube_workaround
) {
8226 assert(tmp_dst
.id() != dst
.id());
8227 assert(tmp_dst
.size() == dst
.size() && dst
.size() == 4);
8229 emit_split_vector(ctx
, tmp_dst
, tmp_dst
.size());
8231 for (unsigned i
= 0; i
< dst
.size(); i
++) {
8232 val
[i
] = emit_extract_vector(ctx
, tmp_dst
, i
, v1
);
8234 if (stype
== GLSL_TYPE_UINT
)
8235 cvt_val
= bld
.vop1(aco_opcode::v_cvt_u32_f32
, bld
.def(v1
), val
[i
]);
8237 cvt_val
= bld
.vop1(aco_opcode::v_cvt_i32_f32
, bld
.def(v1
), val
[i
]);
8238 val
[i
] = bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
), val
[i
], cvt_val
, tg4_compare_cube_wa64
);
8240 Temp tmp
= dst
.regClass() == v4
? dst
: bld
.tmp(v4
);
8241 tmp_dst
= bld
.pseudo(aco_opcode::p_create_vector
, Definition(tmp
),
8242 val
[0], val
[1], val
[2], val
[3]);
8244 unsigned mask
= instr
->op
== nir_texop_tg4
? 0xF : dmask
;
8245 expand_vector(ctx
, tmp_dst
, dst
, instr
->dest
.ssa
.num_components
, mask
);
8250 Operand
get_phi_operand(isel_context
*ctx
, nir_ssa_def
*ssa
)
8252 Temp tmp
= get_ssa_temp(ctx
, ssa
);
8253 if (ssa
->parent_instr
->type
== nir_instr_type_ssa_undef
)
8254 return Operand(tmp
.regClass());
8256 return Operand(tmp
);
8259 void visit_phi(isel_context
*ctx
, nir_phi_instr
*instr
)
8261 aco_ptr
<Pseudo_instruction
> phi
;
8262 Temp dst
= get_ssa_temp(ctx
, &instr
->dest
.ssa
);
8263 assert(instr
->dest
.ssa
.bit_size
!= 1 || dst
.regClass() == ctx
->program
->lane_mask
);
8265 bool logical
= !dst
.is_linear() || ctx
->divergent_vals
[instr
->dest
.ssa
.index
];
8266 logical
|= ctx
->block
->kind
& block_kind_merge
;
8267 aco_opcode opcode
= logical
? aco_opcode::p_phi
: aco_opcode::p_linear_phi
;
8269 /* we want a sorted list of sources, since the predecessor list is also sorted */
8270 std::map
<unsigned, nir_ssa_def
*> phi_src
;
8271 nir_foreach_phi_src(src
, instr
)
8272 phi_src
[src
->pred
->index
] = src
->src
.ssa
;
8274 std::vector
<unsigned>& preds
= logical
? ctx
->block
->logical_preds
: ctx
->block
->linear_preds
;
8275 unsigned num_operands
= 0;
8276 Operand operands
[std::max(exec_list_length(&instr
->srcs
), (unsigned)preds
.size()) + 1];
8277 unsigned num_defined
= 0;
8278 unsigned cur_pred_idx
= 0;
8279 for (std::pair
<unsigned, nir_ssa_def
*> src
: phi_src
) {
8280 if (cur_pred_idx
< preds
.size()) {
8281 /* handle missing preds (IF merges with discard/break) and extra preds (loop exit with discard) */
8282 unsigned block
= ctx
->cf_info
.nir_to_aco
[src
.first
];
8283 unsigned skipped
= 0;
8284 while (cur_pred_idx
+ skipped
< preds
.size() && preds
[cur_pred_idx
+ skipped
] != block
)
8286 if (cur_pred_idx
+ skipped
< preds
.size()) {
8287 for (unsigned i
= 0; i
< skipped
; i
++)
8288 operands
[num_operands
++] = Operand(dst
.regClass());
8289 cur_pred_idx
+= skipped
;
8294 /* Handle missing predecessors at the end. This shouldn't happen with loop
8295 * headers and we can't ignore these sources for loop header phis. */
8296 if (!(ctx
->block
->kind
& block_kind_loop_header
) && cur_pred_idx
>= preds
.size())
8299 Operand op
= get_phi_operand(ctx
, src
.second
);
8300 operands
[num_operands
++] = op
;
8301 num_defined
+= !op
.isUndefined();
8303 /* handle block_kind_continue_or_break at loop exit blocks */
8304 while (cur_pred_idx
++ < preds
.size())
8305 operands
[num_operands
++] = Operand(dst
.regClass());
8307 /* If the loop ends with a break, still add a linear continue edge in case
8308 * that break is divergent or continue_or_break is used. We'll either remove
8309 * this operand later in visit_loop() if it's not necessary or replace the
8310 * undef with something correct. */
8311 if (!logical
&& ctx
->block
->kind
& block_kind_loop_header
) {
8312 nir_loop
*loop
= nir_cf_node_as_loop(instr
->instr
.block
->cf_node
.parent
);
8313 nir_block
*last
= nir_loop_last_block(loop
);
8314 if (last
->successors
[0] != instr
->instr
.block
)
8315 operands
[num_operands
++] = Operand(RegClass());
8318 if (num_defined
== 0) {
8319 Builder
bld(ctx
->program
, ctx
->block
);
8320 if (dst
.regClass() == s1
) {
8321 bld
.sop1(aco_opcode::s_mov_b32
, Definition(dst
), Operand(0u));
8322 } else if (dst
.regClass() == v1
) {
8323 bld
.vop1(aco_opcode::v_mov_b32
, Definition(dst
), Operand(0u));
8325 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, dst
.size(), 1)};
8326 for (unsigned i
= 0; i
< dst
.size(); i
++)
8327 vec
->operands
[i
] = Operand(0u);
8328 vec
->definitions
[0] = Definition(dst
);
8329 ctx
->block
->instructions
.emplace_back(std::move(vec
));
8334 /* we can use a linear phi in some cases if one src is undef */
8335 if (dst
.is_linear() && ctx
->block
->kind
& block_kind_merge
&& num_defined
== 1) {
8336 phi
.reset(create_instruction
<Pseudo_instruction
>(aco_opcode::p_linear_phi
, Format::PSEUDO
, num_operands
, 1));
8338 Block
*linear_else
= &ctx
->program
->blocks
[ctx
->block
->linear_preds
[1]];
8339 Block
*invert
= &ctx
->program
->blocks
[linear_else
->linear_preds
[0]];
8340 assert(invert
->kind
& block_kind_invert
);
8342 unsigned then_block
= invert
->linear_preds
[0];
8344 Block
* insert_block
= NULL
;
8345 for (unsigned i
= 0; i
< num_operands
; i
++) {
8346 Operand op
= operands
[i
];
8347 if (op
.isUndefined())
8349 insert_block
= ctx
->block
->logical_preds
[i
] == then_block
? invert
: ctx
->block
;
8350 phi
->operands
[0] = op
;
8353 assert(insert_block
); /* should be handled by the "num_defined == 0" case above */
8354 phi
->operands
[1] = Operand(dst
.regClass());
8355 phi
->definitions
[0] = Definition(dst
);
8356 insert_block
->instructions
.emplace(insert_block
->instructions
.begin(), std::move(phi
));
8360 /* try to scalarize vector phis */
8361 if (instr
->dest
.ssa
.bit_size
!= 1 && dst
.size() > 1) {
8362 // TODO: scalarize linear phis on divergent ifs
8363 bool can_scalarize
= (opcode
== aco_opcode::p_phi
|| !(ctx
->block
->kind
& block_kind_merge
));
8364 std::array
<Temp
, NIR_MAX_VEC_COMPONENTS
> new_vec
;
8365 for (unsigned i
= 0; can_scalarize
&& (i
< num_operands
); i
++) {
8366 Operand src
= operands
[i
];
8367 if (src
.isTemp() && ctx
->allocated_vec
.find(src
.tempId()) == ctx
->allocated_vec
.end())
8368 can_scalarize
= false;
8370 if (can_scalarize
) {
8371 unsigned num_components
= instr
->dest
.ssa
.num_components
;
8372 assert(dst
.size() % num_components
== 0);
8373 RegClass rc
= RegClass(dst
.type(), dst
.size() / num_components
);
8375 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, num_components
, 1)};
8376 for (unsigned k
= 0; k
< num_components
; k
++) {
8377 phi
.reset(create_instruction
<Pseudo_instruction
>(opcode
, Format::PSEUDO
, num_operands
, 1));
8378 for (unsigned i
= 0; i
< num_operands
; i
++) {
8379 Operand src
= operands
[i
];
8380 phi
->operands
[i
] = src
.isTemp() ? Operand(ctx
->allocated_vec
[src
.tempId()][k
]) : Operand(rc
);
8382 Temp phi_dst
= {ctx
->program
->allocateId(), rc
};
8383 phi
->definitions
[0] = Definition(phi_dst
);
8384 ctx
->block
->instructions
.emplace(ctx
->block
->instructions
.begin(), std::move(phi
));
8385 new_vec
[k
] = phi_dst
;
8386 vec
->operands
[k
] = Operand(phi_dst
);
8388 vec
->definitions
[0] = Definition(dst
);
8389 ctx
->block
->instructions
.emplace_back(std::move(vec
));
8390 ctx
->allocated_vec
.emplace(dst
.id(), new_vec
);
8395 phi
.reset(create_instruction
<Pseudo_instruction
>(opcode
, Format::PSEUDO
, num_operands
, 1));
8396 for (unsigned i
= 0; i
< num_operands
; i
++)
8397 phi
->operands
[i
] = operands
[i
];
8398 phi
->definitions
[0] = Definition(dst
);
8399 ctx
->block
->instructions
.emplace(ctx
->block
->instructions
.begin(), std::move(phi
));
8403 void visit_undef(isel_context
*ctx
, nir_ssa_undef_instr
*instr
)
8405 Temp dst
= get_ssa_temp(ctx
, &instr
->def
);
8407 assert(dst
.type() == RegType::sgpr
);
8409 if (dst
.size() == 1) {
8410 Builder(ctx
->program
, ctx
->block
).copy(Definition(dst
), Operand(0u));
8412 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, dst
.size(), 1)};
8413 for (unsigned i
= 0; i
< dst
.size(); i
++)
8414 vec
->operands
[i
] = Operand(0u);
8415 vec
->definitions
[0] = Definition(dst
);
8416 ctx
->block
->instructions
.emplace_back(std::move(vec
));
8420 void visit_jump(isel_context
*ctx
, nir_jump_instr
*instr
)
8422 Builder
bld(ctx
->program
, ctx
->block
);
8423 Block
*logical_target
;
8424 append_logical_end(ctx
->block
);
8425 unsigned idx
= ctx
->block
->index
;
8427 switch (instr
->type
) {
8428 case nir_jump_break
:
8429 logical_target
= ctx
->cf_info
.parent_loop
.exit
;
8430 add_logical_edge(idx
, logical_target
);
8431 ctx
->block
->kind
|= block_kind_break
;
8433 if (!ctx
->cf_info
.parent_if
.is_divergent
&&
8434 !ctx
->cf_info
.parent_loop
.has_divergent_continue
) {
8435 /* uniform break - directly jump out of the loop */
8436 ctx
->block
->kind
|= block_kind_uniform
;
8437 ctx
->cf_info
.has_branch
= true;
8438 bld
.branch(aco_opcode::p_branch
);
8439 add_linear_edge(idx
, logical_target
);
8442 ctx
->cf_info
.parent_loop
.has_divergent_branch
= true;
8443 ctx
->cf_info
.nir_to_aco
[instr
->instr
.block
->index
] = ctx
->block
->index
;
8445 case nir_jump_continue
:
8446 logical_target
= &ctx
->program
->blocks
[ctx
->cf_info
.parent_loop
.header_idx
];
8447 add_logical_edge(idx
, logical_target
);
8448 ctx
->block
->kind
|= block_kind_continue
;
8450 if (ctx
->cf_info
.parent_if
.is_divergent
) {
8451 /* for potential uniform breaks after this continue,
8452 we must ensure that they are handled correctly */
8453 ctx
->cf_info
.parent_loop
.has_divergent_continue
= true;
8454 ctx
->cf_info
.parent_loop
.has_divergent_branch
= true;
8455 ctx
->cf_info
.nir_to_aco
[instr
->instr
.block
->index
] = ctx
->block
->index
;
8457 /* uniform continue - directly jump to the loop header */
8458 ctx
->block
->kind
|= block_kind_uniform
;
8459 ctx
->cf_info
.has_branch
= true;
8460 bld
.branch(aco_opcode::p_branch
);
8461 add_linear_edge(idx
, logical_target
);
8466 fprintf(stderr
, "Unknown NIR jump instr: ");
8467 nir_print_instr(&instr
->instr
, stderr
);
8468 fprintf(stderr
, "\n");
8472 if (ctx
->cf_info
.parent_if
.is_divergent
&& !ctx
->cf_info
.exec_potentially_empty_break
) {
8473 ctx
->cf_info
.exec_potentially_empty_break
= true;
8474 ctx
->cf_info
.exec_potentially_empty_break_depth
= ctx
->cf_info
.loop_nest_depth
;
8477 /* remove critical edges from linear CFG */
8478 bld
.branch(aco_opcode::p_branch
);
8479 Block
* break_block
= ctx
->program
->create_and_insert_block();
8480 break_block
->loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8481 break_block
->kind
|= block_kind_uniform
;
8482 add_linear_edge(idx
, break_block
);
8483 /* the loop_header pointer might be invalidated by this point */
8484 if (instr
->type
== nir_jump_continue
)
8485 logical_target
= &ctx
->program
->blocks
[ctx
->cf_info
.parent_loop
.header_idx
];
8486 add_linear_edge(break_block
->index
, logical_target
);
8487 bld
.reset(break_block
);
8488 bld
.branch(aco_opcode::p_branch
);
8490 Block
* continue_block
= ctx
->program
->create_and_insert_block();
8491 continue_block
->loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8492 add_linear_edge(idx
, continue_block
);
8493 append_logical_start(continue_block
);
8494 ctx
->block
= continue_block
;
8498 void visit_block(isel_context
*ctx
, nir_block
*block
)
8500 nir_foreach_instr(instr
, block
) {
8501 switch (instr
->type
) {
8502 case nir_instr_type_alu
:
8503 visit_alu_instr(ctx
, nir_instr_as_alu(instr
));
8505 case nir_instr_type_load_const
:
8506 visit_load_const(ctx
, nir_instr_as_load_const(instr
));
8508 case nir_instr_type_intrinsic
:
8509 visit_intrinsic(ctx
, nir_instr_as_intrinsic(instr
));
8511 case nir_instr_type_tex
:
8512 visit_tex(ctx
, nir_instr_as_tex(instr
));
8514 case nir_instr_type_phi
:
8515 visit_phi(ctx
, nir_instr_as_phi(instr
));
8517 case nir_instr_type_ssa_undef
:
8518 visit_undef(ctx
, nir_instr_as_ssa_undef(instr
));
8520 case nir_instr_type_deref
:
8522 case nir_instr_type_jump
:
8523 visit_jump(ctx
, nir_instr_as_jump(instr
));
8526 fprintf(stderr
, "Unknown NIR instr type: ");
8527 nir_print_instr(instr
, stderr
);
8528 fprintf(stderr
, "\n");
8533 if (!ctx
->cf_info
.parent_loop
.has_divergent_branch
)
8534 ctx
->cf_info
.nir_to_aco
[block
->index
] = ctx
->block
->index
;
8539 static Operand
create_continue_phis(isel_context
*ctx
, unsigned first
, unsigned last
,
8540 aco_ptr
<Instruction
>& header_phi
, Operand
*vals
)
8542 vals
[0] = Operand(header_phi
->definitions
[0].getTemp());
8543 RegClass rc
= vals
[0].regClass();
8545 unsigned loop_nest_depth
= ctx
->program
->blocks
[first
].loop_nest_depth
;
8547 unsigned next_pred
= 1;
8549 for (unsigned idx
= first
+ 1; idx
<= last
; idx
++) {
8550 Block
& block
= ctx
->program
->blocks
[idx
];
8551 if (block
.loop_nest_depth
!= loop_nest_depth
) {
8552 vals
[idx
- first
] = vals
[idx
- 1 - first
];
8556 if (block
.kind
& block_kind_continue
) {
8557 vals
[idx
- first
] = header_phi
->operands
[next_pred
];
8562 bool all_same
= true;
8563 for (unsigned i
= 1; all_same
&& (i
< block
.linear_preds
.size()); i
++)
8564 all_same
= vals
[block
.linear_preds
[i
] - first
] == vals
[block
.linear_preds
[0] - first
];
8568 val
= vals
[block
.linear_preds
[0] - first
];
8570 aco_ptr
<Instruction
> phi(create_instruction
<Pseudo_instruction
>(
8571 aco_opcode::p_linear_phi
, Format::PSEUDO
, block
.linear_preds
.size(), 1));
8572 for (unsigned i
= 0; i
< block
.linear_preds
.size(); i
++)
8573 phi
->operands
[i
] = vals
[block
.linear_preds
[i
] - first
];
8574 val
= Operand(Temp(ctx
->program
->allocateId(), rc
));
8575 phi
->definitions
[0] = Definition(val
.getTemp());
8576 block
.instructions
.emplace(block
.instructions
.begin(), std::move(phi
));
8578 vals
[idx
- first
] = val
;
8581 return vals
[last
- first
];
8584 static void visit_loop(isel_context
*ctx
, nir_loop
*loop
)
8586 //TODO: we might want to wrap the loop around a branch if exec_potentially_empty=true
8587 append_logical_end(ctx
->block
);
8588 ctx
->block
->kind
|= block_kind_loop_preheader
| block_kind_uniform
;
8589 Builder
bld(ctx
->program
, ctx
->block
);
8590 bld
.branch(aco_opcode::p_branch
);
8591 unsigned loop_preheader_idx
= ctx
->block
->index
;
8593 Block loop_exit
= Block();
8594 loop_exit
.loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8595 loop_exit
.kind
|= (block_kind_loop_exit
| (ctx
->block
->kind
& block_kind_top_level
));
8597 Block
* loop_header
= ctx
->program
->create_and_insert_block();
8598 loop_header
->loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
+ 1;
8599 loop_header
->kind
|= block_kind_loop_header
;
8600 add_edge(loop_preheader_idx
, loop_header
);
8601 ctx
->block
= loop_header
;
8603 /* emit loop body */
8604 unsigned loop_header_idx
= loop_header
->index
;
8605 loop_info_RAII
loop_raii(ctx
, loop_header_idx
, &loop_exit
);
8606 append_logical_start(ctx
->block
);
8607 bool unreachable
= visit_cf_list(ctx
, &loop
->body
);
8609 //TODO: what if a loop ends with a unconditional or uniformly branched continue and this branch is never taken?
8610 if (!ctx
->cf_info
.has_branch
) {
8611 append_logical_end(ctx
->block
);
8612 if (ctx
->cf_info
.exec_potentially_empty_discard
|| ctx
->cf_info
.exec_potentially_empty_break
) {
8613 /* Discards can result in code running with an empty exec mask.
8614 * This would result in divergent breaks not ever being taken. As a
8615 * workaround, break the loop when the loop mask is empty instead of
8616 * always continuing. */
8617 ctx
->block
->kind
|= (block_kind_continue_or_break
| block_kind_uniform
);
8618 unsigned block_idx
= ctx
->block
->index
;
8620 /* create helper blocks to avoid critical edges */
8621 Block
*break_block
= ctx
->program
->create_and_insert_block();
8622 break_block
->loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8623 break_block
->kind
= block_kind_uniform
;
8624 bld
.reset(break_block
);
8625 bld
.branch(aco_opcode::p_branch
);
8626 add_linear_edge(block_idx
, break_block
);
8627 add_linear_edge(break_block
->index
, &loop_exit
);
8629 Block
*continue_block
= ctx
->program
->create_and_insert_block();
8630 continue_block
->loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8631 continue_block
->kind
= block_kind_uniform
;
8632 bld
.reset(continue_block
);
8633 bld
.branch(aco_opcode::p_branch
);
8634 add_linear_edge(block_idx
, continue_block
);
8635 add_linear_edge(continue_block
->index
, &ctx
->program
->blocks
[loop_header_idx
]);
8637 if (!ctx
->cf_info
.parent_loop
.has_divergent_branch
)
8638 add_logical_edge(block_idx
, &ctx
->program
->blocks
[loop_header_idx
]);
8639 ctx
->block
= &ctx
->program
->blocks
[block_idx
];
8641 ctx
->block
->kind
|= (block_kind_continue
| block_kind_uniform
);
8642 if (!ctx
->cf_info
.parent_loop
.has_divergent_branch
)
8643 add_edge(ctx
->block
->index
, &ctx
->program
->blocks
[loop_header_idx
]);
8645 add_linear_edge(ctx
->block
->index
, &ctx
->program
->blocks
[loop_header_idx
]);
8648 bld
.reset(ctx
->block
);
8649 bld
.branch(aco_opcode::p_branch
);
8652 /* Fixup phis in loop header from unreachable blocks.
8653 * has_branch/has_divergent_branch also indicates if the loop ends with a
8654 * break/continue instruction, but we don't emit those if unreachable=true */
8656 assert(ctx
->cf_info
.has_branch
|| ctx
->cf_info
.parent_loop
.has_divergent_branch
);
8657 bool linear
= ctx
->cf_info
.has_branch
;
8658 bool logical
= ctx
->cf_info
.has_branch
|| ctx
->cf_info
.parent_loop
.has_divergent_branch
;
8659 for (aco_ptr
<Instruction
>& instr
: ctx
->program
->blocks
[loop_header_idx
].instructions
) {
8660 if ((logical
&& instr
->opcode
== aco_opcode::p_phi
) ||
8661 (linear
&& instr
->opcode
== aco_opcode::p_linear_phi
)) {
8662 /* the last operand should be the one that needs to be removed */
8663 instr
->operands
.pop_back();
8664 } else if (!is_phi(instr
)) {
8670 /* Fixup linear phis in loop header from expecting a continue. Both this fixup
8671 * and the previous one shouldn't both happen at once because a break in the
8672 * merge block would get CSE'd */
8673 if (nir_loop_last_block(loop
)->successors
[0] != nir_loop_first_block(loop
)) {
8674 unsigned num_vals
= ctx
->cf_info
.has_branch
? 1 : (ctx
->block
->index
- loop_header_idx
+ 1);
8675 Operand vals
[num_vals
];
8676 for (aco_ptr
<Instruction
>& instr
: ctx
->program
->blocks
[loop_header_idx
].instructions
) {
8677 if (instr
->opcode
== aco_opcode::p_linear_phi
) {
8678 if (ctx
->cf_info
.has_branch
)
8679 instr
->operands
.pop_back();
8681 instr
->operands
.back() = create_continue_phis(ctx
, loop_header_idx
, ctx
->block
->index
, instr
, vals
);
8682 } else if (!is_phi(instr
)) {
8688 ctx
->cf_info
.has_branch
= false;
8690 // TODO: if the loop has not a single exit, we must add one °°
8691 /* emit loop successor block */
8692 ctx
->block
= ctx
->program
->insert_block(std::move(loop_exit
));
8693 append_logical_start(ctx
->block
);
8696 // TODO: check if it is beneficial to not branch on continues
8697 /* trim linear phis in loop header */
8698 for (auto&& instr
: loop_entry
->instructions
) {
8699 if (instr
->opcode
== aco_opcode::p_linear_phi
) {
8700 aco_ptr
<Pseudo_instruction
> new_phi
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_linear_phi
, Format::PSEUDO
, loop_entry
->linear_predecessors
.size(), 1)};
8701 new_phi
->definitions
[0] = instr
->definitions
[0];
8702 for (unsigned i
= 0; i
< new_phi
->operands
.size(); i
++)
8703 new_phi
->operands
[i
] = instr
->operands
[i
];
8704 /* check that the remaining operands are all the same */
8705 for (unsigned i
= new_phi
->operands
.size(); i
< instr
->operands
.size(); i
++)
8706 assert(instr
->operands
[i
].tempId() == instr
->operands
.back().tempId());
8707 instr
.swap(new_phi
);
8708 } else if (instr
->opcode
== aco_opcode::p_phi
) {
8717 static void begin_divergent_if_then(isel_context
*ctx
, if_context
*ic
, Temp cond
)
8721 append_logical_end(ctx
->block
);
8722 ctx
->block
->kind
|= block_kind_branch
;
8724 /* branch to linear then block */
8725 assert(cond
.regClass() == ctx
->program
->lane_mask
);
8726 aco_ptr
<Pseudo_branch_instruction
> branch
;
8727 branch
.reset(create_instruction
<Pseudo_branch_instruction
>(aco_opcode::p_cbranch_z
, Format::PSEUDO_BRANCH
, 1, 0));
8728 branch
->operands
[0] = Operand(cond
);
8729 ctx
->block
->instructions
.push_back(std::move(branch
));
8731 ic
->BB_if_idx
= ctx
->block
->index
;
8732 ic
->BB_invert
= Block();
8733 ic
->BB_invert
.loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8734 /* Invert blocks are intentionally not marked as top level because they
8735 * are not part of the logical cfg. */
8736 ic
->BB_invert
.kind
|= block_kind_invert
;
8737 ic
->BB_endif
= Block();
8738 ic
->BB_endif
.loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8739 ic
->BB_endif
.kind
|= (block_kind_merge
| (ctx
->block
->kind
& block_kind_top_level
));
8741 ic
->exec_potentially_empty_discard_old
= ctx
->cf_info
.exec_potentially_empty_discard
;
8742 ic
->exec_potentially_empty_break_old
= ctx
->cf_info
.exec_potentially_empty_break
;
8743 ic
->exec_potentially_empty_break_depth_old
= ctx
->cf_info
.exec_potentially_empty_break_depth
;
8744 ic
->divergent_old
= ctx
->cf_info
.parent_if
.is_divergent
;
8745 ctx
->cf_info
.parent_if
.is_divergent
= true;
8747 /* divergent branches use cbranch_execz */
8748 ctx
->cf_info
.exec_potentially_empty_discard
= false;
8749 ctx
->cf_info
.exec_potentially_empty_break
= false;
8750 ctx
->cf_info
.exec_potentially_empty_break_depth
= UINT16_MAX
;
8752 /** emit logical then block */
8753 Block
* BB_then_logical
= ctx
->program
->create_and_insert_block();
8754 BB_then_logical
->loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8755 add_edge(ic
->BB_if_idx
, BB_then_logical
);
8756 ctx
->block
= BB_then_logical
;
8757 append_logical_start(BB_then_logical
);
8760 static void begin_divergent_if_else(isel_context
*ctx
, if_context
*ic
)
8762 Block
*BB_then_logical
= ctx
->block
;
8763 append_logical_end(BB_then_logical
);
8764 /* branch from logical then block to invert block */
8765 aco_ptr
<Pseudo_branch_instruction
> branch
;
8766 branch
.reset(create_instruction
<Pseudo_branch_instruction
>(aco_opcode::p_branch
, Format::PSEUDO_BRANCH
, 0, 0));
8767 BB_then_logical
->instructions
.emplace_back(std::move(branch
));
8768 add_linear_edge(BB_then_logical
->index
, &ic
->BB_invert
);
8769 if (!ctx
->cf_info
.parent_loop
.has_divergent_branch
)
8770 add_logical_edge(BB_then_logical
->index
, &ic
->BB_endif
);
8771 BB_then_logical
->kind
|= block_kind_uniform
;
8772 assert(!ctx
->cf_info
.has_branch
);
8773 ic
->then_branch_divergent
= ctx
->cf_info
.parent_loop
.has_divergent_branch
;
8774 ctx
->cf_info
.parent_loop
.has_divergent_branch
= false;
8776 /** emit linear then block */
8777 Block
* BB_then_linear
= ctx
->program
->create_and_insert_block();
8778 BB_then_linear
->loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8779 BB_then_linear
->kind
|= block_kind_uniform
;
8780 add_linear_edge(ic
->BB_if_idx
, BB_then_linear
);
8781 /* branch from linear then block to invert block */
8782 branch
.reset(create_instruction
<Pseudo_branch_instruction
>(aco_opcode::p_branch
, Format::PSEUDO_BRANCH
, 0, 0));
8783 BB_then_linear
->instructions
.emplace_back(std::move(branch
));
8784 add_linear_edge(BB_then_linear
->index
, &ic
->BB_invert
);
8786 /** emit invert merge block */
8787 ctx
->block
= ctx
->program
->insert_block(std::move(ic
->BB_invert
));
8788 ic
->invert_idx
= ctx
->block
->index
;
8790 /* branch to linear else block (skip else) */
8791 branch
.reset(create_instruction
<Pseudo_branch_instruction
>(aco_opcode::p_cbranch_nz
, Format::PSEUDO_BRANCH
, 1, 0));
8792 branch
->operands
[0] = Operand(ic
->cond
);
8793 ctx
->block
->instructions
.push_back(std::move(branch
));
8795 ic
->exec_potentially_empty_discard_old
|= ctx
->cf_info
.exec_potentially_empty_discard
;
8796 ic
->exec_potentially_empty_break_old
|= ctx
->cf_info
.exec_potentially_empty_break
;
8797 ic
->exec_potentially_empty_break_depth_old
=
8798 std::min(ic
->exec_potentially_empty_break_depth_old
, ctx
->cf_info
.exec_potentially_empty_break_depth
);
8799 /* divergent branches use cbranch_execz */
8800 ctx
->cf_info
.exec_potentially_empty_discard
= false;
8801 ctx
->cf_info
.exec_potentially_empty_break
= false;
8802 ctx
->cf_info
.exec_potentially_empty_break_depth
= UINT16_MAX
;
8804 /** emit logical else block */
8805 Block
* BB_else_logical
= ctx
->program
->create_and_insert_block();
8806 BB_else_logical
->loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8807 add_logical_edge(ic
->BB_if_idx
, BB_else_logical
);
8808 add_linear_edge(ic
->invert_idx
, BB_else_logical
);
8809 ctx
->block
= BB_else_logical
;
8810 append_logical_start(BB_else_logical
);
8813 static void end_divergent_if(isel_context
*ctx
, if_context
*ic
)
8815 Block
*BB_else_logical
= ctx
->block
;
8816 append_logical_end(BB_else_logical
);
8818 /* branch from logical else block to endif block */
8819 aco_ptr
<Pseudo_branch_instruction
> branch
;
8820 branch
.reset(create_instruction
<Pseudo_branch_instruction
>(aco_opcode::p_branch
, Format::PSEUDO_BRANCH
, 0, 0));
8821 BB_else_logical
->instructions
.emplace_back(std::move(branch
));
8822 add_linear_edge(BB_else_logical
->index
, &ic
->BB_endif
);
8823 if (!ctx
->cf_info
.parent_loop
.has_divergent_branch
)
8824 add_logical_edge(BB_else_logical
->index
, &ic
->BB_endif
);
8825 BB_else_logical
->kind
|= block_kind_uniform
;
8827 assert(!ctx
->cf_info
.has_branch
);
8828 ctx
->cf_info
.parent_loop
.has_divergent_branch
&= ic
->then_branch_divergent
;
8831 /** emit linear else block */
8832 Block
* BB_else_linear
= ctx
->program
->create_and_insert_block();
8833 BB_else_linear
->loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8834 BB_else_linear
->kind
|= block_kind_uniform
;
8835 add_linear_edge(ic
->invert_idx
, BB_else_linear
);
8837 /* branch from linear else block to endif block */
8838 branch
.reset(create_instruction
<Pseudo_branch_instruction
>(aco_opcode::p_branch
, Format::PSEUDO_BRANCH
, 0, 0));
8839 BB_else_linear
->instructions
.emplace_back(std::move(branch
));
8840 add_linear_edge(BB_else_linear
->index
, &ic
->BB_endif
);
8843 /** emit endif merge block */
8844 ctx
->block
= ctx
->program
->insert_block(std::move(ic
->BB_endif
));
8845 append_logical_start(ctx
->block
);
8848 ctx
->cf_info
.parent_if
.is_divergent
= ic
->divergent_old
;
8849 ctx
->cf_info
.exec_potentially_empty_discard
|= ic
->exec_potentially_empty_discard_old
;
8850 ctx
->cf_info
.exec_potentially_empty_break
|= ic
->exec_potentially_empty_break_old
;
8851 ctx
->cf_info
.exec_potentially_empty_break_depth
=
8852 std::min(ic
->exec_potentially_empty_break_depth_old
, ctx
->cf_info
.exec_potentially_empty_break_depth
);
8853 if (ctx
->cf_info
.loop_nest_depth
== ctx
->cf_info
.exec_potentially_empty_break_depth
&&
8854 !ctx
->cf_info
.parent_if
.is_divergent
) {
8855 ctx
->cf_info
.exec_potentially_empty_break
= false;
8856 ctx
->cf_info
.exec_potentially_empty_break_depth
= UINT16_MAX
;
8858 /* uniform control flow never has an empty exec-mask */
8859 if (!ctx
->cf_info
.loop_nest_depth
&& !ctx
->cf_info
.parent_if
.is_divergent
) {
8860 ctx
->cf_info
.exec_potentially_empty_discard
= false;
8861 ctx
->cf_info
.exec_potentially_empty_break
= false;
8862 ctx
->cf_info
.exec_potentially_empty_break_depth
= UINT16_MAX
;
8866 static bool visit_if(isel_context
*ctx
, nir_if
*if_stmt
)
8868 Temp cond
= get_ssa_temp(ctx
, if_stmt
->condition
.ssa
);
8869 Builder
bld(ctx
->program
, ctx
->block
);
8870 aco_ptr
<Pseudo_branch_instruction
> branch
;
8872 if (!ctx
->divergent_vals
[if_stmt
->condition
.ssa
->index
]) { /* uniform condition */
8874 * Uniform conditionals are represented in the following way*) :
8876 * The linear and logical CFG:
8879 * BB_THEN (logical) BB_ELSE (logical)
8883 * *) Exceptions may be due to break and continue statements within loops
8884 * If a break/continue happens within uniform control flow, it branches
8885 * to the loop exit/entry block. Otherwise, it branches to the next
8888 append_logical_end(ctx
->block
);
8889 ctx
->block
->kind
|= block_kind_uniform
;
8892 assert(cond
.regClass() == bld
.lm
);
8893 // TODO: in a post-RA optimizer, we could check if the condition is in VCC and omit this instruction
8894 cond
= bool_to_scalar_condition(ctx
, cond
);
8896 branch
.reset(create_instruction
<Pseudo_branch_instruction
>(aco_opcode::p_cbranch_z
, Format::PSEUDO_BRANCH
, 1, 0));
8897 branch
->operands
[0] = Operand(cond
);
8898 branch
->operands
[0].setFixed(scc
);
8899 ctx
->block
->instructions
.emplace_back(std::move(branch
));
8901 unsigned BB_if_idx
= ctx
->block
->index
;
8902 Block BB_endif
= Block();
8903 BB_endif
.loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8904 BB_endif
.kind
|= ctx
->block
->kind
& block_kind_top_level
;
8906 /** emit then block */
8907 Block
* BB_then
= ctx
->program
->create_and_insert_block();
8908 BB_then
->loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8909 add_edge(BB_if_idx
, BB_then
);
8910 append_logical_start(BB_then
);
8911 ctx
->block
= BB_then
;
8912 visit_cf_list(ctx
, &if_stmt
->then_list
);
8913 BB_then
= ctx
->block
;
8914 bool then_branch
= ctx
->cf_info
.has_branch
;
8915 bool then_branch_divergent
= ctx
->cf_info
.parent_loop
.has_divergent_branch
;
8918 append_logical_end(BB_then
);
8919 /* branch from then block to endif block */
8920 branch
.reset(create_instruction
<Pseudo_branch_instruction
>(aco_opcode::p_branch
, Format::PSEUDO_BRANCH
, 0, 0));
8921 BB_then
->instructions
.emplace_back(std::move(branch
));
8922 add_linear_edge(BB_then
->index
, &BB_endif
);
8923 if (!then_branch_divergent
)
8924 add_logical_edge(BB_then
->index
, &BB_endif
);
8925 BB_then
->kind
|= block_kind_uniform
;
8928 ctx
->cf_info
.has_branch
= false;
8929 ctx
->cf_info
.parent_loop
.has_divergent_branch
= false;
8931 /** emit else block */
8932 Block
* BB_else
= ctx
->program
->create_and_insert_block();
8933 BB_else
->loop_nest_depth
= ctx
->cf_info
.loop_nest_depth
;
8934 add_edge(BB_if_idx
, BB_else
);
8935 append_logical_start(BB_else
);
8936 ctx
->block
= BB_else
;
8937 visit_cf_list(ctx
, &if_stmt
->else_list
);
8938 BB_else
= ctx
->block
;
8940 if (!ctx
->cf_info
.has_branch
) {
8941 append_logical_end(BB_else
);
8942 /* branch from then block to endif block */
8943 branch
.reset(create_instruction
<Pseudo_branch_instruction
>(aco_opcode::p_branch
, Format::PSEUDO_BRANCH
, 0, 0));
8944 BB_else
->instructions
.emplace_back(std::move(branch
));
8945 add_linear_edge(BB_else
->index
, &BB_endif
);
8946 if (!ctx
->cf_info
.parent_loop
.has_divergent_branch
)
8947 add_logical_edge(BB_else
->index
, &BB_endif
);
8948 BB_else
->kind
|= block_kind_uniform
;
8951 ctx
->cf_info
.has_branch
&= then_branch
;
8952 ctx
->cf_info
.parent_loop
.has_divergent_branch
&= then_branch_divergent
;
8954 /** emit endif merge block */
8955 if (!ctx
->cf_info
.has_branch
) {
8956 ctx
->block
= ctx
->program
->insert_block(std::move(BB_endif
));
8957 append_logical_start(ctx
->block
);
8959 return !ctx
->cf_info
.has_branch
;
8960 } else { /* non-uniform condition */
8962 * To maintain a logical and linear CFG without critical edges,
8963 * non-uniform conditionals are represented in the following way*) :
8968 * BB_THEN (logical) BB_THEN (linear)
8970 * BB_INVERT (linear)
8972 * BB_ELSE (logical) BB_ELSE (linear)
8979 * BB_THEN (logical) BB_ELSE (logical)
8983 * *) Exceptions may be due to break and continue statements within loops
8988 begin_divergent_if_then(ctx
, &ic
, cond
);
8989 visit_cf_list(ctx
, &if_stmt
->then_list
);
8991 begin_divergent_if_else(ctx
, &ic
);
8992 visit_cf_list(ctx
, &if_stmt
->else_list
);
8994 end_divergent_if(ctx
, &ic
);
9000 static bool visit_cf_list(isel_context
*ctx
,
9001 struct exec_list
*list
)
9003 foreach_list_typed(nir_cf_node
, node
, node
, list
) {
9004 switch (node
->type
) {
9005 case nir_cf_node_block
:
9006 visit_block(ctx
, nir_cf_node_as_block(node
));
9008 case nir_cf_node_if
:
9009 if (!visit_if(ctx
, nir_cf_node_as_if(node
)))
9012 case nir_cf_node_loop
:
9013 visit_loop(ctx
, nir_cf_node_as_loop(node
));
9016 unreachable("unimplemented cf list type");
9022 static void create_null_export(isel_context
*ctx
)
9024 /* Some shader stages always need to have exports.
9025 * So when there is none, we need to add a null export.
9028 unsigned dest
= (ctx
->program
->stage
& hw_fs
) ? 9 /* NULL */ : V_008DFC_SQ_EXP_POS
;
9029 bool vm
= (ctx
->program
->stage
& hw_fs
) || ctx
->program
->chip_class
>= GFX10
;
9030 Builder
bld(ctx
->program
, ctx
->block
);
9031 bld
.exp(aco_opcode::exp
, Operand(v1
), Operand(v1
), Operand(v1
), Operand(v1
),
9032 /* enabled_mask */ 0, dest
, /* compr */ false, /* done */ true, vm
);
9035 static bool export_vs_varying(isel_context
*ctx
, int slot
, bool is_pos
, int *next_pos
)
9037 assert(ctx
->stage
== vertex_vs
||
9038 ctx
->stage
== tess_eval_vs
||
9039 ctx
->stage
== gs_copy_vs
);
9041 int offset
= ctx
->stage
== tess_eval_vs
9042 ? ctx
->program
->info
->tes
.outinfo
.vs_output_param_offset
[slot
]
9043 : ctx
->program
->info
->vs
.outinfo
.vs_output_param_offset
[slot
];
9044 uint64_t mask
= ctx
->outputs
.mask
[slot
];
9045 if (!is_pos
&& !mask
)
9047 if (!is_pos
&& offset
== AC_EXP_PARAM_UNDEFINED
)
9049 aco_ptr
<Export_instruction
> exp
{create_instruction
<Export_instruction
>(aco_opcode::exp
, Format::EXP
, 4, 0)};
9050 exp
->enabled_mask
= mask
;
9051 for (unsigned i
= 0; i
< 4; ++i
) {
9052 if (mask
& (1 << i
))
9053 exp
->operands
[i
] = Operand(ctx
->outputs
.temps
[slot
* 4u + i
]);
9055 exp
->operands
[i
] = Operand(v1
);
9057 /* Navi10-14 skip POS0 exports if EXEC=0 and DONE=0, causing a hang.
9058 * Setting valid_mask=1 prevents it and has no other effect.
9060 exp
->valid_mask
= ctx
->options
->chip_class
>= GFX10
&& is_pos
&& *next_pos
== 0;
9062 exp
->compressed
= false;
9064 exp
->dest
= V_008DFC_SQ_EXP_POS
+ (*next_pos
)++;
9066 exp
->dest
= V_008DFC_SQ_EXP_PARAM
+ offset
;
9067 ctx
->block
->instructions
.emplace_back(std::move(exp
));
9072 static void export_vs_psiz_layer_viewport(isel_context
*ctx
, int *next_pos
)
9074 aco_ptr
<Export_instruction
> exp
{create_instruction
<Export_instruction
>(aco_opcode::exp
, Format::EXP
, 4, 0)};
9075 exp
->enabled_mask
= 0;
9076 for (unsigned i
= 0; i
< 4; ++i
)
9077 exp
->operands
[i
] = Operand(v1
);
9078 if (ctx
->outputs
.mask
[VARYING_SLOT_PSIZ
]) {
9079 exp
->operands
[0] = Operand(ctx
->outputs
.temps
[VARYING_SLOT_PSIZ
* 4u]);
9080 exp
->enabled_mask
|= 0x1;
9082 if (ctx
->outputs
.mask
[VARYING_SLOT_LAYER
]) {
9083 exp
->operands
[2] = Operand(ctx
->outputs
.temps
[VARYING_SLOT_LAYER
* 4u]);
9084 exp
->enabled_mask
|= 0x4;
9086 if (ctx
->outputs
.mask
[VARYING_SLOT_VIEWPORT
]) {
9087 if (ctx
->options
->chip_class
< GFX9
) {
9088 exp
->operands
[3] = Operand(ctx
->outputs
.temps
[VARYING_SLOT_VIEWPORT
* 4u]);
9089 exp
->enabled_mask
|= 0x8;
9091 Builder
bld(ctx
->program
, ctx
->block
);
9093 Temp out
= bld
.vop2(aco_opcode::v_lshlrev_b32
, bld
.def(v1
), Operand(16u),
9094 Operand(ctx
->outputs
.temps
[VARYING_SLOT_VIEWPORT
* 4u]));
9095 if (exp
->operands
[2].isTemp())
9096 out
= bld
.vop2(aco_opcode::v_or_b32
, bld
.def(v1
), Operand(out
), exp
->operands
[2]);
9098 exp
->operands
[2] = Operand(out
);
9099 exp
->enabled_mask
|= 0x4;
9102 exp
->valid_mask
= ctx
->options
->chip_class
>= GFX10
&& *next_pos
== 0;
9104 exp
->compressed
= false;
9105 exp
->dest
= V_008DFC_SQ_EXP_POS
+ (*next_pos
)++;
9106 ctx
->block
->instructions
.emplace_back(std::move(exp
));
9109 static void create_vs_exports(isel_context
*ctx
)
9111 assert(ctx
->stage
== vertex_vs
||
9112 ctx
->stage
== tess_eval_vs
||
9113 ctx
->stage
== gs_copy_vs
);
9115 radv_vs_output_info
*outinfo
= ctx
->stage
== tess_eval_vs
9116 ? &ctx
->program
->info
->tes
.outinfo
9117 : &ctx
->program
->info
->vs
.outinfo
;
9119 if (outinfo
->export_prim_id
) {
9120 ctx
->outputs
.mask
[VARYING_SLOT_PRIMITIVE_ID
] |= 0x1;
9121 ctx
->outputs
.temps
[VARYING_SLOT_PRIMITIVE_ID
* 4u] = get_arg(ctx
, ctx
->args
->vs_prim_id
);
9124 if (ctx
->options
->key
.has_multiview_view_index
) {
9125 ctx
->outputs
.mask
[VARYING_SLOT_LAYER
] |= 0x1;
9126 ctx
->outputs
.temps
[VARYING_SLOT_LAYER
* 4u] = as_vgpr(ctx
, get_arg(ctx
, ctx
->args
->ac
.view_index
));
9129 /* the order these position exports are created is important */
9131 bool exported_pos
= export_vs_varying(ctx
, VARYING_SLOT_POS
, true, &next_pos
);
9132 if (outinfo
->writes_pointsize
|| outinfo
->writes_layer
|| outinfo
->writes_viewport_index
) {
9133 export_vs_psiz_layer_viewport(ctx
, &next_pos
);
9134 exported_pos
= true;
9136 if (ctx
->num_clip_distances
+ ctx
->num_cull_distances
> 0)
9137 exported_pos
|= export_vs_varying(ctx
, VARYING_SLOT_CLIP_DIST0
, true, &next_pos
);
9138 if (ctx
->num_clip_distances
+ ctx
->num_cull_distances
> 4)
9139 exported_pos
|= export_vs_varying(ctx
, VARYING_SLOT_CLIP_DIST1
, true, &next_pos
);
9141 if (ctx
->export_clip_dists
) {
9142 if (ctx
->num_clip_distances
+ ctx
->num_cull_distances
> 0)
9143 export_vs_varying(ctx
, VARYING_SLOT_CLIP_DIST0
, false, &next_pos
);
9144 if (ctx
->num_clip_distances
+ ctx
->num_cull_distances
> 4)
9145 export_vs_varying(ctx
, VARYING_SLOT_CLIP_DIST1
, false, &next_pos
);
9148 for (unsigned i
= 0; i
<= VARYING_SLOT_VAR31
; ++i
) {
9149 if (i
< VARYING_SLOT_VAR0
&& i
!= VARYING_SLOT_LAYER
&&
9150 i
!= VARYING_SLOT_PRIMITIVE_ID
)
9153 export_vs_varying(ctx
, i
, false, NULL
);
9157 create_null_export(ctx
);
9160 static bool export_fs_mrt_z(isel_context
*ctx
)
9162 Builder
bld(ctx
->program
, ctx
->block
);
9163 unsigned enabled_channels
= 0;
9167 for (unsigned i
= 0; i
< 4; ++i
) {
9168 values
[i
] = Operand(v1
);
9171 /* Both stencil and sample mask only need 16-bits. */
9172 if (!ctx
->program
->info
->ps
.writes_z
&&
9173 (ctx
->program
->info
->ps
.writes_stencil
||
9174 ctx
->program
->info
->ps
.writes_sample_mask
)) {
9175 compr
= true; /* COMPR flag */
9177 if (ctx
->program
->info
->ps
.writes_stencil
) {
9178 /* Stencil should be in X[23:16]. */
9179 values
[0] = Operand(ctx
->outputs
.temps
[FRAG_RESULT_STENCIL
* 4u]);
9180 values
[0] = bld
.vop2(aco_opcode::v_lshlrev_b32
, bld
.def(v1
), Operand(16u), values
[0]);
9181 enabled_channels
|= 0x3;
9184 if (ctx
->program
->info
->ps
.writes_sample_mask
) {
9185 /* SampleMask should be in Y[15:0]. */
9186 values
[1] = Operand(ctx
->outputs
.temps
[FRAG_RESULT_SAMPLE_MASK
* 4u]);
9187 enabled_channels
|= 0xc;
9190 if (ctx
->program
->info
->ps
.writes_z
) {
9191 values
[0] = Operand(ctx
->outputs
.temps
[FRAG_RESULT_DEPTH
* 4u]);
9192 enabled_channels
|= 0x1;
9195 if (ctx
->program
->info
->ps
.writes_stencil
) {
9196 values
[1] = Operand(ctx
->outputs
.temps
[FRAG_RESULT_STENCIL
* 4u]);
9197 enabled_channels
|= 0x2;
9200 if (ctx
->program
->info
->ps
.writes_sample_mask
) {
9201 values
[2] = Operand(ctx
->outputs
.temps
[FRAG_RESULT_SAMPLE_MASK
* 4u]);
9202 enabled_channels
|= 0x4;
9206 /* GFX6 (except OLAND and HAINAN) has a bug that it only looks at the X
9207 * writemask component.
9209 if (ctx
->options
->chip_class
== GFX6
&&
9210 ctx
->options
->family
!= CHIP_OLAND
&&
9211 ctx
->options
->family
!= CHIP_HAINAN
) {
9212 enabled_channels
|= 0x1;
9215 bld
.exp(aco_opcode::exp
, values
[0], values
[1], values
[2], values
[3],
9216 enabled_channels
, V_008DFC_SQ_EXP_MRTZ
, compr
);
9221 static bool export_fs_mrt_color(isel_context
*ctx
, int slot
)
9223 Builder
bld(ctx
->program
, ctx
->block
);
9224 unsigned write_mask
= ctx
->outputs
.mask
[slot
];
9227 for (unsigned i
= 0; i
< 4; ++i
) {
9228 if (write_mask
& (1 << i
)) {
9229 values
[i
] = Operand(ctx
->outputs
.temps
[slot
* 4u + i
]);
9231 values
[i
] = Operand(v1
);
9235 unsigned target
, col_format
;
9236 unsigned enabled_channels
= 0;
9237 aco_opcode compr_op
= (aco_opcode
)0;
9239 slot
-= FRAG_RESULT_DATA0
;
9240 target
= V_008DFC_SQ_EXP_MRT
+ slot
;
9241 col_format
= (ctx
->options
->key
.fs
.col_format
>> (4 * slot
)) & 0xf;
9243 bool is_int8
= (ctx
->options
->key
.fs
.is_int8
>> slot
) & 1;
9244 bool is_int10
= (ctx
->options
->key
.fs
.is_int10
>> slot
) & 1;
9248 case V_028714_SPI_SHADER_ZERO
:
9249 enabled_channels
= 0; /* writemask */
9250 target
= V_008DFC_SQ_EXP_NULL
;
9253 case V_028714_SPI_SHADER_32_R
:
9254 enabled_channels
= 1;
9257 case V_028714_SPI_SHADER_32_GR
:
9258 enabled_channels
= 0x3;
9261 case V_028714_SPI_SHADER_32_AR
:
9262 if (ctx
->options
->chip_class
>= GFX10
) {
9263 /* Special case: on GFX10, the outputs are different for 32_AR */
9264 enabled_channels
= 0x3;
9265 values
[1] = values
[3];
9266 values
[3] = Operand(v1
);
9268 enabled_channels
= 0x9;
9272 case V_028714_SPI_SHADER_FP16_ABGR
:
9273 enabled_channels
= 0x5;
9274 compr_op
= aco_opcode::v_cvt_pkrtz_f16_f32
;
9277 case V_028714_SPI_SHADER_UNORM16_ABGR
:
9278 enabled_channels
= 0x5;
9279 compr_op
= aco_opcode::v_cvt_pknorm_u16_f32
;
9282 case V_028714_SPI_SHADER_SNORM16_ABGR
:
9283 enabled_channels
= 0x5;
9284 compr_op
= aco_opcode::v_cvt_pknorm_i16_f32
;
9287 case V_028714_SPI_SHADER_UINT16_ABGR
: {
9288 enabled_channels
= 0x5;
9289 compr_op
= aco_opcode::v_cvt_pk_u16_u32
;
9290 if (is_int8
|| is_int10
) {
9292 uint32_t max_rgb
= is_int8
? 255 : is_int10
? 1023 : 0;
9293 Temp max_rgb_val
= bld
.copy(bld
.def(s1
), Operand(max_rgb
));
9295 for (unsigned i
= 0; i
< 4; i
++) {
9296 if ((write_mask
>> i
) & 1) {
9297 values
[i
] = bld
.vop2(aco_opcode::v_min_u32
, bld
.def(v1
),
9298 i
== 3 && is_int10
? Operand(3u) : Operand(max_rgb_val
),
9306 case V_028714_SPI_SHADER_SINT16_ABGR
:
9307 enabled_channels
= 0x5;
9308 compr_op
= aco_opcode::v_cvt_pk_i16_i32
;
9309 if (is_int8
|| is_int10
) {
9311 uint32_t max_rgb
= is_int8
? 127 : is_int10
? 511 : 0;
9312 uint32_t min_rgb
= is_int8
? -128 :is_int10
? -512 : 0;
9313 Temp max_rgb_val
= bld
.copy(bld
.def(s1
), Operand(max_rgb
));
9314 Temp min_rgb_val
= bld
.copy(bld
.def(s1
), Operand(min_rgb
));
9316 for (unsigned i
= 0; i
< 4; i
++) {
9317 if ((write_mask
>> i
) & 1) {
9318 values
[i
] = bld
.vop2(aco_opcode::v_min_i32
, bld
.def(v1
),
9319 i
== 3 && is_int10
? Operand(1u) : Operand(max_rgb_val
),
9321 values
[i
] = bld
.vop2(aco_opcode::v_max_i32
, bld
.def(v1
),
9322 i
== 3 && is_int10
? Operand(-2u) : Operand(min_rgb_val
),
9329 case V_028714_SPI_SHADER_32_ABGR
:
9330 enabled_channels
= 0xF;
9337 if (target
== V_008DFC_SQ_EXP_NULL
)
9340 if ((bool) compr_op
) {
9341 for (int i
= 0; i
< 2; i
++) {
9342 /* check if at least one of the values to be compressed is enabled */
9343 unsigned enabled
= (write_mask
>> (i
*2) | write_mask
>> (i
*2+1)) & 0x1;
9345 enabled_channels
|= enabled
<< (i
*2);
9346 values
[i
] = bld
.vop3(compr_op
, bld
.def(v1
),
9347 values
[i
*2].isUndefined() ? Operand(0u) : values
[i
*2],
9348 values
[i
*2+1].isUndefined() ? Operand(0u): values
[i
*2+1]);
9350 values
[i
] = Operand(v1
);
9353 values
[2] = Operand(v1
);
9354 values
[3] = Operand(v1
);
9356 for (int i
= 0; i
< 4; i
++)
9357 values
[i
] = enabled_channels
& (1 << i
) ? values
[i
] : Operand(v1
);
9360 bld
.exp(aco_opcode::exp
, values
[0], values
[1], values
[2], values
[3],
9361 enabled_channels
, target
, (bool) compr_op
);
9365 static void create_fs_exports(isel_context
*ctx
)
9367 bool exported
= false;
9369 /* Export depth, stencil and sample mask. */
9370 if (ctx
->outputs
.mask
[FRAG_RESULT_DEPTH
] ||
9371 ctx
->outputs
.mask
[FRAG_RESULT_STENCIL
] ||
9372 ctx
->outputs
.mask
[FRAG_RESULT_SAMPLE_MASK
])
9373 exported
|= export_fs_mrt_z(ctx
);
9375 /* Export all color render targets. */
9376 for (unsigned i
= FRAG_RESULT_DATA0
; i
< FRAG_RESULT_DATA7
+ 1; ++i
)
9377 if (ctx
->outputs
.mask
[i
])
9378 exported
|= export_fs_mrt_color(ctx
, i
);
9381 create_null_export(ctx
);
9384 static void write_tcs_tess_factors(isel_context
*ctx
)
9386 unsigned outer_comps
;
9387 unsigned inner_comps
;
9389 switch (ctx
->args
->options
->key
.tcs
.primitive_mode
) {
9406 Builder
bld(ctx
->program
, ctx
->block
);
9408 bld
.barrier(aco_opcode::p_memory_barrier_shared
);
9409 if (unlikely(ctx
->program
->chip_class
!= GFX6
&& ctx
->program
->workgroup_size
> ctx
->program
->wave_size
))
9410 bld
.sopp(aco_opcode::s_barrier
);
9412 Temp tcs_rel_ids
= get_arg(ctx
, ctx
->args
->ac
.tcs_rel_ids
);
9413 Temp invocation_id
= bld
.vop3(aco_opcode::v_bfe_u32
, bld
.def(v1
), tcs_rel_ids
, Operand(8u), Operand(5u));
9415 Temp invocation_id_is_zero
= bld
.vopc(aco_opcode::v_cmp_eq_u32
, bld
.hint_vcc(bld
.def(bld
.lm
)), Operand(0u), invocation_id
);
9416 if_context ic_invocation_id_is_zero
;
9417 begin_divergent_if_then(ctx
, &ic_invocation_id_is_zero
, invocation_id_is_zero
);
9418 bld
.reset(ctx
->block
);
9420 Temp hs_ring_tess_factor
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), ctx
->program
->private_segment_buffer
, Operand(RING_HS_TESS_FACTOR
* 16u));
9422 std::pair
<Temp
, unsigned> lds_base
= get_tcs_output_lds_offset(ctx
);
9423 unsigned stride
= inner_comps
+ outer_comps
;
9424 unsigned lds_align
= calculate_lds_alignment(ctx
, lds_base
.second
);
9428 assert(stride
<= (sizeof(out
) / sizeof(Temp
)));
9430 if (ctx
->args
->options
->key
.tcs
.primitive_mode
== GL_ISOLINES
) {
9432 tf_outer_vec
= load_lds(ctx
, 4, bld
.tmp(v2
), lds_base
.first
, lds_base
.second
+ ctx
->tcs_tess_lvl_out_loc
, lds_align
);
9433 out
[1] = emit_extract_vector(ctx
, tf_outer_vec
, 0, v1
);
9434 out
[0] = emit_extract_vector(ctx
, tf_outer_vec
, 1, v1
);
9436 tf_outer_vec
= load_lds(ctx
, 4, bld
.tmp(RegClass(RegType::vgpr
, outer_comps
)), lds_base
.first
, lds_base
.second
+ ctx
->tcs_tess_lvl_out_loc
, lds_align
);
9437 tf_inner_vec
= load_lds(ctx
, 4, bld
.tmp(RegClass(RegType::vgpr
, inner_comps
)), lds_base
.first
, lds_base
.second
+ ctx
->tcs_tess_lvl_in_loc
, lds_align
);
9439 for (unsigned i
= 0; i
< outer_comps
; ++i
)
9440 out
[i
] = emit_extract_vector(ctx
, tf_outer_vec
, i
, v1
);
9441 for (unsigned i
= 0; i
< inner_comps
; ++i
)
9442 out
[outer_comps
+ i
] = emit_extract_vector(ctx
, tf_inner_vec
, i
, v1
);
9445 Temp rel_patch_id
= get_tess_rel_patch_id(ctx
);
9446 Temp tf_base
= get_arg(ctx
, ctx
->args
->tess_factor_offset
);
9447 Temp byte_offset
= bld
.v_mul_imm(bld
.def(v1
), rel_patch_id
, stride
* 4u);
9448 unsigned tf_const_offset
= 0;
9450 if (ctx
->program
->chip_class
<= GFX8
) {
9451 Temp rel_patch_id_is_zero
= bld
.vopc(aco_opcode::v_cmp_eq_u32
, bld
.hint_vcc(bld
.def(bld
.lm
)), Operand(0u), rel_patch_id
);
9452 if_context ic_rel_patch_id_is_zero
;
9453 begin_divergent_if_then(ctx
, &ic_rel_patch_id_is_zero
, rel_patch_id_is_zero
);
9454 bld
.reset(ctx
->block
);
9456 /* Store the dynamic HS control word. */
9457 Temp control_word
= bld
.copy(bld
.def(v1
), Operand(0x80000000u
));
9458 bld
.mubuf(aco_opcode::buffer_store_dword
,
9459 /* SRSRC */ hs_ring_tess_factor
, /* VADDR */ Operand(v1
), /* SOFFSET */ tf_base
, /* VDATA */ control_word
,
9460 /* immediate OFFSET */ 0, /* OFFEN */ false, /* idxen*/ false, /* addr64 */ false,
9461 /* disable_wqm */ false, /* glc */ true);
9462 tf_const_offset
+= 4;
9464 begin_divergent_if_else(ctx
, &ic_rel_patch_id_is_zero
);
9465 end_divergent_if(ctx
, &ic_rel_patch_id_is_zero
);
9466 bld
.reset(ctx
->block
);
9469 assert(stride
== 2 || stride
== 4 || stride
== 6);
9470 Temp tf_vec
= create_vec_from_array(ctx
, out
, stride
, RegType::vgpr
, 4u);
9471 store_vmem_mubuf(ctx
, tf_vec
, hs_ring_tess_factor
, byte_offset
, tf_base
, tf_const_offset
, 4, (1 << stride
) - 1, true, false);
9473 /* Store to offchip for TES to read - only if TES reads them */
9474 if (ctx
->args
->options
->key
.tcs
.tes_reads_tess_factors
) {
9475 Temp hs_ring_tess_offchip
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), ctx
->program
->private_segment_buffer
, Operand(RING_HS_TESS_OFFCHIP
* 16u));
9476 Temp oc_lds
= get_arg(ctx
, ctx
->args
->oc_lds
);
9478 std::pair
<Temp
, unsigned> vmem_offs_outer
= get_tcs_per_patch_output_vmem_offset(ctx
, nullptr, ctx
->tcs_tess_lvl_out_loc
);
9479 store_vmem_mubuf(ctx
, tf_outer_vec
, hs_ring_tess_offchip
, vmem_offs_outer
.first
, oc_lds
, vmem_offs_outer
.second
, 4, (1 << outer_comps
) - 1, true, false);
9481 if (likely(inner_comps
)) {
9482 std::pair
<Temp
, unsigned> vmem_offs_inner
= get_tcs_per_patch_output_vmem_offset(ctx
, nullptr, ctx
->tcs_tess_lvl_in_loc
);
9483 store_vmem_mubuf(ctx
, tf_inner_vec
, hs_ring_tess_offchip
, vmem_offs_inner
.first
, oc_lds
, vmem_offs_inner
.second
, 4, (1 << inner_comps
) - 1, true, false);
9487 begin_divergent_if_else(ctx
, &ic_invocation_id_is_zero
);
9488 end_divergent_if(ctx
, &ic_invocation_id_is_zero
);
9491 static void emit_stream_output(isel_context
*ctx
,
9492 Temp
const *so_buffers
,
9493 Temp
const *so_write_offset
,
9494 const struct radv_stream_output
*output
)
9496 unsigned num_comps
= util_bitcount(output
->component_mask
);
9497 unsigned writemask
= (1 << num_comps
) - 1;
9498 unsigned loc
= output
->location
;
9499 unsigned buf
= output
->buffer
;
9501 assert(num_comps
&& num_comps
<= 4);
9502 if (!num_comps
|| num_comps
> 4)
9505 unsigned start
= ffs(output
->component_mask
) - 1;
9508 bool all_undef
= true;
9509 assert(ctx
->stage
== vertex_vs
|| ctx
->stage
== gs_copy_vs
);
9510 for (unsigned i
= 0; i
< num_comps
; i
++) {
9511 out
[i
] = ctx
->outputs
.temps
[loc
* 4 + start
+ i
];
9512 all_undef
= all_undef
&& !out
[i
].id();
9519 u_bit_scan_consecutive_range(&writemask
, &start
, &count
);
9520 if (count
== 3 && ctx
->options
->chip_class
== GFX6
) {
9521 /* GFX6 doesn't support storing vec3, split it. */
9522 writemask
|= 1u << (start
+ 2);
9526 unsigned offset
= output
->offset
+ start
* 4;
9528 Temp write_data
= {ctx
->program
->allocateId(), RegClass(RegType::vgpr
, count
)};
9529 aco_ptr
<Pseudo_instruction
> vec
{create_instruction
<Pseudo_instruction
>(aco_opcode::p_create_vector
, Format::PSEUDO
, count
, 1)};
9530 for (int i
= 0; i
< count
; ++i
)
9531 vec
->operands
[i
] = (ctx
->outputs
.mask
[loc
] & 1 << (start
+ i
)) ? Operand(out
[start
+ i
]) : Operand(0u);
9532 vec
->definitions
[0] = Definition(write_data
);
9533 ctx
->block
->instructions
.emplace_back(std::move(vec
));
9538 opcode
= aco_opcode::buffer_store_dword
;
9541 opcode
= aco_opcode::buffer_store_dwordx2
;
9544 opcode
= aco_opcode::buffer_store_dwordx3
;
9547 opcode
= aco_opcode::buffer_store_dwordx4
;
9550 unreachable("Unsupported dword count.");
9553 aco_ptr
<MUBUF_instruction
> store
{create_instruction
<MUBUF_instruction
>(opcode
, Format::MUBUF
, 4, 0)};
9554 store
->operands
[0] = Operand(so_buffers
[buf
]);
9555 store
->operands
[1] = Operand(so_write_offset
[buf
]);
9556 store
->operands
[2] = Operand((uint32_t) 0);
9557 store
->operands
[3] = Operand(write_data
);
9558 if (offset
> 4095) {
9559 /* Don't think this can happen in RADV, but maybe GL? It's easy to do this anyway. */
9560 Builder
bld(ctx
->program
, ctx
->block
);
9561 store
->operands
[0] = bld
.vadd32(bld
.def(v1
), Operand(offset
), Operand(so_write_offset
[buf
]));
9563 store
->offset
= offset
;
9565 store
->offen
= true;
9569 store
->can_reorder
= true;
9570 ctx
->block
->instructions
.emplace_back(std::move(store
));
9574 static void emit_streamout(isel_context
*ctx
, unsigned stream
)
9576 Builder
bld(ctx
->program
, ctx
->block
);
9579 Temp buf_ptr
= convert_pointer_to_64_bit(ctx
, get_arg(ctx
, ctx
->args
->streamout_buffers
));
9580 for (unsigned i
= 0; i
< 4; i
++) {
9581 unsigned stride
= ctx
->program
->info
->so
.strides
[i
];
9585 Operand off
= bld
.copy(bld
.def(s1
), Operand(i
* 16u));
9586 so_buffers
[i
] = bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), buf_ptr
, off
);
9589 Temp so_vtx_count
= bld
.sop2(aco_opcode::s_bfe_u32
, bld
.def(s1
), bld
.def(s1
, scc
),
9590 get_arg(ctx
, ctx
->args
->streamout_config
), Operand(0x70010u
));
9592 Temp tid
= emit_mbcnt(ctx
, bld
.def(v1
));
9594 Temp can_emit
= bld
.vopc(aco_opcode::v_cmp_gt_i32
, bld
.def(bld
.lm
), so_vtx_count
, tid
);
9597 begin_divergent_if_then(ctx
, &ic
, can_emit
);
9599 bld
.reset(ctx
->block
);
9601 Temp so_write_index
= bld
.vadd32(bld
.def(v1
), get_arg(ctx
, ctx
->args
->streamout_write_idx
), tid
);
9603 Temp so_write_offset
[4];
9605 for (unsigned i
= 0; i
< 4; i
++) {
9606 unsigned stride
= ctx
->program
->info
->so
.strides
[i
];
9611 Temp offset
= bld
.sop2(aco_opcode::s_add_i32
, bld
.def(s1
), bld
.def(s1
, scc
),
9612 get_arg(ctx
, ctx
->args
->streamout_write_idx
),
9613 get_arg(ctx
, ctx
->args
->streamout_offset
[i
]));
9614 Temp new_offset
= bld
.vadd32(bld
.def(v1
), offset
, tid
);
9616 so_write_offset
[i
] = bld
.vop2(aco_opcode::v_lshlrev_b32
, bld
.def(v1
), Operand(2u), new_offset
);
9618 Temp offset
= bld
.v_mul_imm(bld
.def(v1
), so_write_index
, stride
* 4u);
9619 Temp offset2
= bld
.sop2(aco_opcode::s_mul_i32
, bld
.def(s1
), Operand(4u),
9620 get_arg(ctx
, ctx
->args
->streamout_offset
[i
]));
9621 so_write_offset
[i
] = bld
.vadd32(bld
.def(v1
), offset
, offset2
);
9625 for (unsigned i
= 0; i
< ctx
->program
->info
->so
.num_outputs
; i
++) {
9626 struct radv_stream_output
*output
=
9627 &ctx
->program
->info
->so
.outputs
[i
];
9628 if (stream
!= output
->stream
)
9631 emit_stream_output(ctx
, so_buffers
, so_write_offset
, output
);
9634 begin_divergent_if_else(ctx
, &ic
);
9635 end_divergent_if(ctx
, &ic
);
9638 } /* end namespace */
9640 void fix_ls_vgpr_init_bug(isel_context
*ctx
, Pseudo_instruction
*startpgm
)
9642 assert(ctx
->shader
->info
.stage
== MESA_SHADER_VERTEX
);
9643 Builder
bld(ctx
->program
, ctx
->block
);
9644 constexpr unsigned hs_idx
= 1u;
9645 Builder::Result hs_thread_count
= bld
.sop2(aco_opcode::s_bfe_u32
, bld
.def(s1
), bld
.def(s1
, scc
),
9646 get_arg(ctx
, ctx
->args
->merged_wave_info
),
9647 Operand((8u << 16) | (hs_idx
* 8u)));
9648 Temp ls_has_nonzero_hs_threads
= bool_to_vector_condition(ctx
, hs_thread_count
.def(1).getTemp());
9650 /* If there are no HS threads, SPI mistakenly loads the LS VGPRs starting at VGPR 0. */
9652 Temp instance_id
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
),
9653 get_arg(ctx
, ctx
->args
->rel_auto_id
),
9654 get_arg(ctx
, ctx
->args
->ac
.instance_id
),
9655 ls_has_nonzero_hs_threads
);
9656 Temp rel_auto_id
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
),
9657 get_arg(ctx
, ctx
->args
->ac
.tcs_rel_ids
),
9658 get_arg(ctx
, ctx
->args
->rel_auto_id
),
9659 ls_has_nonzero_hs_threads
);
9660 Temp vertex_id
= bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
),
9661 get_arg(ctx
, ctx
->args
->ac
.tcs_patch_id
),
9662 get_arg(ctx
, ctx
->args
->ac
.vertex_id
),
9663 ls_has_nonzero_hs_threads
);
9665 ctx
->arg_temps
[ctx
->args
->ac
.instance_id
.arg_index
] = instance_id
;
9666 ctx
->arg_temps
[ctx
->args
->rel_auto_id
.arg_index
] = rel_auto_id
;
9667 ctx
->arg_temps
[ctx
->args
->ac
.vertex_id
.arg_index
] = vertex_id
;
9670 void split_arguments(isel_context
*ctx
, Pseudo_instruction
*startpgm
)
9672 /* Split all arguments except for the first (ring_offsets) and the last
9673 * (exec) so that the dead channels don't stay live throughout the program.
9675 for (int i
= 1; i
< startpgm
->definitions
.size() - 1; i
++) {
9676 if (startpgm
->definitions
[i
].regClass().size() > 1) {
9677 emit_split_vector(ctx
, startpgm
->definitions
[i
].getTemp(),
9678 startpgm
->definitions
[i
].regClass().size());
9683 void handle_bc_optimize(isel_context
*ctx
)
9685 /* needed when SPI_PS_IN_CONTROL.BC_OPTIMIZE_DISABLE is set to 0 */
9686 Builder
bld(ctx
->program
, ctx
->block
);
9687 uint32_t spi_ps_input_ena
= ctx
->program
->config
->spi_ps_input_ena
;
9688 bool uses_center
= G_0286CC_PERSP_CENTER_ENA(spi_ps_input_ena
) || G_0286CC_LINEAR_CENTER_ENA(spi_ps_input_ena
);
9689 bool uses_centroid
= G_0286CC_PERSP_CENTROID_ENA(spi_ps_input_ena
) || G_0286CC_LINEAR_CENTROID_ENA(spi_ps_input_ena
);
9690 ctx
->persp_centroid
= get_arg(ctx
, ctx
->args
->ac
.persp_centroid
);
9691 ctx
->linear_centroid
= get_arg(ctx
, ctx
->args
->ac
.linear_centroid
);
9692 if (uses_center
&& uses_centroid
) {
9693 Temp sel
= bld
.vopc_e64(aco_opcode::v_cmp_lt_i32
, bld
.hint_vcc(bld
.def(bld
.lm
)),
9694 get_arg(ctx
, ctx
->args
->ac
.prim_mask
), Operand(0u));
9696 if (G_0286CC_PERSP_CENTROID_ENA(spi_ps_input_ena
)) {
9698 for (unsigned i
= 0; i
< 2; i
++) {
9699 Temp persp_centroid
= emit_extract_vector(ctx
, get_arg(ctx
, ctx
->args
->ac
.persp_centroid
), i
, v1
);
9700 Temp persp_center
= emit_extract_vector(ctx
, get_arg(ctx
, ctx
->args
->ac
.persp_center
), i
, v1
);
9701 new_coord
[i
] = bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
),
9702 persp_centroid
, persp_center
, sel
);
9704 ctx
->persp_centroid
= bld
.tmp(v2
);
9705 bld
.pseudo(aco_opcode::p_create_vector
, Definition(ctx
->persp_centroid
),
9706 Operand(new_coord
[0]), Operand(new_coord
[1]));
9707 emit_split_vector(ctx
, ctx
->persp_centroid
, 2);
9710 if (G_0286CC_LINEAR_CENTROID_ENA(spi_ps_input_ena
)) {
9712 for (unsigned i
= 0; i
< 2; i
++) {
9713 Temp linear_centroid
= emit_extract_vector(ctx
, get_arg(ctx
, ctx
->args
->ac
.linear_centroid
), i
, v1
);
9714 Temp linear_center
= emit_extract_vector(ctx
, get_arg(ctx
, ctx
->args
->ac
.linear_center
), i
, v1
);
9715 new_coord
[i
] = bld
.vop2(aco_opcode::v_cndmask_b32
, bld
.def(v1
),
9716 linear_centroid
, linear_center
, sel
);
9718 ctx
->linear_centroid
= bld
.tmp(v2
);
9719 bld
.pseudo(aco_opcode::p_create_vector
, Definition(ctx
->linear_centroid
),
9720 Operand(new_coord
[0]), Operand(new_coord
[1]));
9721 emit_split_vector(ctx
, ctx
->linear_centroid
, 2);
9726 void setup_fp_mode(isel_context
*ctx
, nir_shader
*shader
)
9728 Program
*program
= ctx
->program
;
9730 unsigned float_controls
= shader
->info
.float_controls_execution_mode
;
9732 program
->next_fp_mode
.preserve_signed_zero_inf_nan32
=
9733 float_controls
& FLOAT_CONTROLS_SIGNED_ZERO_INF_NAN_PRESERVE_FP32
;
9734 program
->next_fp_mode
.preserve_signed_zero_inf_nan16_64
=
9735 float_controls
& (FLOAT_CONTROLS_SIGNED_ZERO_INF_NAN_PRESERVE_FP16
|
9736 FLOAT_CONTROLS_SIGNED_ZERO_INF_NAN_PRESERVE_FP64
);
9738 program
->next_fp_mode
.must_flush_denorms32
=
9739 float_controls
& FLOAT_CONTROLS_DENORM_FLUSH_TO_ZERO_FP32
;
9740 program
->next_fp_mode
.must_flush_denorms16_64
=
9741 float_controls
& (FLOAT_CONTROLS_DENORM_FLUSH_TO_ZERO_FP16
|
9742 FLOAT_CONTROLS_DENORM_FLUSH_TO_ZERO_FP64
);
9744 program
->next_fp_mode
.care_about_round32
=
9745 float_controls
& (FLOAT_CONTROLS_ROUNDING_MODE_RTZ_FP32
| FLOAT_CONTROLS_ROUNDING_MODE_RTE_FP32
);
9747 program
->next_fp_mode
.care_about_round16_64
=
9748 float_controls
& (FLOAT_CONTROLS_ROUNDING_MODE_RTZ_FP16
| FLOAT_CONTROLS_ROUNDING_MODE_RTZ_FP64
|
9749 FLOAT_CONTROLS_ROUNDING_MODE_RTE_FP16
| FLOAT_CONTROLS_ROUNDING_MODE_RTE_FP64
);
9751 /* default to preserving fp16 and fp64 denorms, since it's free */
9752 if (program
->next_fp_mode
.must_flush_denorms16_64
)
9753 program
->next_fp_mode
.denorm16_64
= 0;
9755 program
->next_fp_mode
.denorm16_64
= fp_denorm_keep
;
9757 /* preserving fp32 denorms is expensive, so only do it if asked */
9758 if (float_controls
& FLOAT_CONTROLS_DENORM_PRESERVE_FP32
)
9759 program
->next_fp_mode
.denorm32
= fp_denorm_keep
;
9761 program
->next_fp_mode
.denorm32
= 0;
9763 if (float_controls
& FLOAT_CONTROLS_ROUNDING_MODE_RTZ_FP32
)
9764 program
->next_fp_mode
.round32
= fp_round_tz
;
9766 program
->next_fp_mode
.round32
= fp_round_ne
;
9768 if (float_controls
& (FLOAT_CONTROLS_ROUNDING_MODE_RTZ_FP16
| FLOAT_CONTROLS_ROUNDING_MODE_RTZ_FP64
))
9769 program
->next_fp_mode
.round16_64
= fp_round_tz
;
9771 program
->next_fp_mode
.round16_64
= fp_round_ne
;
9773 ctx
->block
->fp_mode
= program
->next_fp_mode
;
9776 void cleanup_cfg(Program
*program
)
9778 /* create linear_succs/logical_succs */
9779 for (Block
& BB
: program
->blocks
) {
9780 for (unsigned idx
: BB
.linear_preds
)
9781 program
->blocks
[idx
].linear_succs
.emplace_back(BB
.index
);
9782 for (unsigned idx
: BB
.logical_preds
)
9783 program
->blocks
[idx
].logical_succs
.emplace_back(BB
.index
);
9787 void select_program(Program
*program
,
9788 unsigned shader_count
,
9789 struct nir_shader
*const *shaders
,
9790 ac_shader_config
* config
,
9791 struct radv_shader_args
*args
)
9793 isel_context ctx
= setup_isel_context(program
, shader_count
, shaders
, config
, args
, false);
9794 if_context ic_merged_wave_info
;
9796 for (unsigned i
= 0; i
< shader_count
; i
++) {
9797 nir_shader
*nir
= shaders
[i
];
9798 init_context(&ctx
, nir
);
9800 setup_fp_mode(&ctx
, nir
);
9803 /* needs to be after init_context() for FS */
9804 Pseudo_instruction
*startpgm
= add_startpgm(&ctx
);
9805 append_logical_start(ctx
.block
);
9807 if (unlikely(args
->options
->has_ls_vgpr_init_bug
&& ctx
.stage
== vertex_tess_control_hs
))
9808 fix_ls_vgpr_init_bug(&ctx
, startpgm
);
9810 split_arguments(&ctx
, startpgm
);
9813 /* In a merged VS+TCS HS, the VS implementation can be completely empty. */
9814 nir_function_impl
*func
= nir_shader_get_entrypoint(nir
);
9815 bool empty_shader
= nir_cf_list_is_empty_block(&func
->body
) &&
9816 ((nir
->info
.stage
== MESA_SHADER_VERTEX
&&
9817 (ctx
.stage
== vertex_tess_control_hs
|| ctx
.stage
== vertex_geometry_gs
)) ||
9818 (nir
->info
.stage
== MESA_SHADER_TESS_EVAL
&&
9819 ctx
.stage
== tess_eval_geometry_gs
));
9821 bool check_merged_wave_info
= ctx
.tcs_in_out_eq
? i
== 0 : (shader_count
>= 2 && !empty_shader
);
9822 bool endif_merged_wave_info
= ctx
.tcs_in_out_eq
? i
== 1 : check_merged_wave_info
;
9823 if (check_merged_wave_info
) {
9824 Builder
bld(ctx
.program
, ctx
.block
);
9826 /* The s_bfm only cares about s0.u[5:0] so we don't need either s_bfe nor s_and here */
9827 Temp count
= i
== 0 ? get_arg(&ctx
, args
->merged_wave_info
)
9828 : bld
.sop2(aco_opcode::s_lshr_b32
, bld
.def(s1
), bld
.def(s1
, scc
),
9829 get_arg(&ctx
, args
->merged_wave_info
), Operand(i
* 8u));
9831 Temp mask
= bld
.sop2(aco_opcode::s_bfm_b64
, bld
.def(s2
), count
, Operand(0u));
9834 if (ctx
.program
->wave_size
== 64) {
9835 /* Special case for 64 active invocations, because 64 doesn't work with s_bfm */
9836 Temp active_64
= bld
.sopc(aco_opcode::s_bitcmp1_b32
, bld
.def(s1
, scc
), count
, Operand(6u /* log2(64) */));
9837 cond
= bld
.sop2(Builder::s_cselect
, bld
.def(bld
.lm
), Operand(-1u), mask
, bld
.scc(active_64
));
9839 /* We use s_bfm_b64 (not _b32) which works with 32, but we need to extract the lower half of the register */
9840 cond
= emit_extract_vector(&ctx
, mask
, 0, bld
.lm
);
9843 begin_divergent_if_then(&ctx
, &ic_merged_wave_info
, cond
);
9847 Builder
bld(ctx
.program
, ctx
.block
);
9849 bld
.barrier(aco_opcode::p_memory_barrier_shared
);
9850 bld
.sopp(aco_opcode::s_barrier
);
9852 if (ctx
.stage
== vertex_geometry_gs
|| ctx
.stage
== tess_eval_geometry_gs
) {
9853 ctx
.gs_wave_id
= bld
.sop2(aco_opcode::s_bfe_u32
, bld
.def(s1
, m0
), bld
.def(s1
, scc
), get_arg(&ctx
, args
->merged_wave_info
), Operand((8u << 16) | 16u));
9855 } else if (ctx
.stage
== geometry_gs
)
9856 ctx
.gs_wave_id
= get_arg(&ctx
, args
->gs_wave_id
);
9858 if (ctx
.stage
== fragment_fs
)
9859 handle_bc_optimize(&ctx
);
9861 visit_cf_list(&ctx
, &func
->body
);
9863 if (ctx
.program
->info
->so
.num_outputs
&& (ctx
.stage
== vertex_vs
|| ctx
.stage
== tess_eval_vs
))
9864 emit_streamout(&ctx
, 0);
9866 if (ctx
.stage
== vertex_vs
|| ctx
.stage
== tess_eval_vs
) {
9867 create_vs_exports(&ctx
);
9868 } else if (nir
->info
.stage
== MESA_SHADER_GEOMETRY
) {
9869 Builder
bld(ctx
.program
, ctx
.block
);
9870 bld
.barrier(aco_opcode::p_memory_barrier_gs_data
);
9871 bld
.sopp(aco_opcode::s_sendmsg
, bld
.m0(ctx
.gs_wave_id
), -1, sendmsg_gs_done(false, false, 0));
9872 } else if (nir
->info
.stage
== MESA_SHADER_TESS_CTRL
) {
9873 write_tcs_tess_factors(&ctx
);
9876 if (ctx
.stage
== fragment_fs
)
9877 create_fs_exports(&ctx
);
9879 if (endif_merged_wave_info
) {
9880 begin_divergent_if_else(&ctx
, &ic_merged_wave_info
);
9881 end_divergent_if(&ctx
, &ic_merged_wave_info
);
9884 ralloc_free(ctx
.divergent_vals
);
9886 if (i
== 0 && ctx
.stage
== vertex_tess_control_hs
&& ctx
.tcs_in_out_eq
) {
9887 /* Outputs of the previous stage are inputs to the next stage */
9888 ctx
.inputs
= ctx
.outputs
;
9889 ctx
.outputs
= shader_io_state();
9893 program
->config
->float_mode
= program
->blocks
[0].fp_mode
.val
;
9895 append_logical_end(ctx
.block
);
9896 ctx
.block
->kind
|= block_kind_uniform
| block_kind_export_end
;
9897 Builder
bld(ctx
.program
, ctx
.block
);
9898 if (ctx
.program
->wb_smem_l1_on_end
)
9899 bld
.smem(aco_opcode::s_dcache_wb
, false);
9900 bld
.sopp(aco_opcode::s_endpgm
);
9902 cleanup_cfg(program
);
9905 void select_gs_copy_shader(Program
*program
, struct nir_shader
*gs_shader
,
9906 ac_shader_config
* config
,
9907 struct radv_shader_args
*args
)
9909 isel_context ctx
= setup_isel_context(program
, 1, &gs_shader
, config
, args
, true);
9911 program
->next_fp_mode
.preserve_signed_zero_inf_nan32
= false;
9912 program
->next_fp_mode
.preserve_signed_zero_inf_nan16_64
= false;
9913 program
->next_fp_mode
.must_flush_denorms32
= false;
9914 program
->next_fp_mode
.must_flush_denorms16_64
= false;
9915 program
->next_fp_mode
.care_about_round32
= false;
9916 program
->next_fp_mode
.care_about_round16_64
= false;
9917 program
->next_fp_mode
.denorm16_64
= fp_denorm_keep
;
9918 program
->next_fp_mode
.denorm32
= 0;
9919 program
->next_fp_mode
.round32
= fp_round_ne
;
9920 program
->next_fp_mode
.round16_64
= fp_round_ne
;
9921 ctx
.block
->fp_mode
= program
->next_fp_mode
;
9924 append_logical_start(ctx
.block
);
9926 Builder
bld(ctx
.program
, ctx
.block
);
9928 Temp gsvs_ring
= bld
.smem(aco_opcode::s_load_dwordx4
, bld
.def(s4
), program
->private_segment_buffer
, Operand(RING_GSVS_VS
* 16u));
9930 Operand
stream_id(0u);
9931 if (args
->shader_info
->so
.num_outputs
)
9932 stream_id
= bld
.sop2(aco_opcode::s_bfe_u32
, bld
.def(s1
), bld
.def(s1
, scc
),
9933 get_arg(&ctx
, ctx
.args
->streamout_config
), Operand(0x20018u
));
9935 Temp vtx_offset
= bld
.vop2(aco_opcode::v_lshlrev_b32
, bld
.def(v1
), Operand(2u), get_arg(&ctx
, ctx
.args
->ac
.vertex_id
));
9937 std::stack
<Block
> endif_blocks
;
9939 for (unsigned stream
= 0; stream
< 4; stream
++) {
9940 if (stream_id
.isConstant() && stream
!= stream_id
.constantValue())
9943 unsigned num_components
= args
->shader_info
->gs
.num_stream_output_components
[stream
];
9944 if (stream
> 0 && (!num_components
|| !args
->shader_info
->so
.num_outputs
))
9947 memset(ctx
.outputs
.mask
, 0, sizeof(ctx
.outputs
.mask
));
9949 unsigned BB_if_idx
= ctx
.block
->index
;
9950 Block BB_endif
= Block();
9951 if (!stream_id
.isConstant()) {
9953 Temp cond
= bld
.sopc(aco_opcode::s_cmp_eq_u32
, bld
.def(s1
, scc
), stream_id
, Operand(stream
));
9954 append_logical_end(ctx
.block
);
9955 ctx
.block
->kind
|= block_kind_uniform
;
9956 bld
.branch(aco_opcode::p_cbranch_z
, cond
);
9958 BB_endif
.kind
|= ctx
.block
->kind
& block_kind_top_level
;
9960 ctx
.block
= ctx
.program
->create_and_insert_block();
9961 add_edge(BB_if_idx
, ctx
.block
);
9962 bld
.reset(ctx
.block
);
9963 append_logical_start(ctx
.block
);
9966 unsigned offset
= 0;
9967 for (unsigned i
= 0; i
<= VARYING_SLOT_VAR31
; ++i
) {
9968 if (args
->shader_info
->gs
.output_streams
[i
] != stream
)
9971 unsigned output_usage_mask
= args
->shader_info
->gs
.output_usage_mask
[i
];
9972 unsigned length
= util_last_bit(output_usage_mask
);
9973 for (unsigned j
= 0; j
< length
; ++j
) {
9974 if (!(output_usage_mask
& (1 << j
)))
9977 unsigned const_offset
= offset
* args
->shader_info
->gs
.vertices_out
* 16 * 4;
9978 Temp voffset
= vtx_offset
;
9979 if (const_offset
>= 4096u) {
9980 voffset
= bld
.vadd32(bld
.def(v1
), Operand(const_offset
/ 4096u * 4096u), voffset
);
9981 const_offset
%= 4096u;
9984 aco_ptr
<MUBUF_instruction
> mubuf
{create_instruction
<MUBUF_instruction
>(aco_opcode::buffer_load_dword
, Format::MUBUF
, 3, 1)};
9985 mubuf
->definitions
[0] = bld
.def(v1
);
9986 mubuf
->operands
[0] = Operand(gsvs_ring
);
9987 mubuf
->operands
[1] = Operand(voffset
);
9988 mubuf
->operands
[2] = Operand(0u);
9989 mubuf
->offen
= true;
9990 mubuf
->offset
= const_offset
;
9993 mubuf
->dlc
= args
->options
->chip_class
>= GFX10
;
9994 mubuf
->barrier
= barrier_none
;
9995 mubuf
->can_reorder
= true;
9997 ctx
.outputs
.mask
[i
] |= 1 << j
;
9998 ctx
.outputs
.temps
[i
* 4u + j
] = mubuf
->definitions
[0].getTemp();
10000 bld
.insert(std::move(mubuf
));
10006 if (args
->shader_info
->so
.num_outputs
) {
10007 emit_streamout(&ctx
, stream
);
10008 bld
.reset(ctx
.block
);
10012 create_vs_exports(&ctx
);
10013 ctx
.block
->kind
|= block_kind_export_end
;
10016 if (!stream_id
.isConstant()) {
10017 append_logical_end(ctx
.block
);
10019 /* branch from then block to endif block */
10020 bld
.branch(aco_opcode::p_branch
);
10021 add_edge(ctx
.block
->index
, &BB_endif
);
10022 ctx
.block
->kind
|= block_kind_uniform
;
10024 /* emit else block */
10025 ctx
.block
= ctx
.program
->create_and_insert_block();
10026 add_edge(BB_if_idx
, ctx
.block
);
10027 bld
.reset(ctx
.block
);
10028 append_logical_start(ctx
.block
);
10030 endif_blocks
.push(std::move(BB_endif
));
10034 while (!endif_blocks
.empty()) {
10035 Block BB_endif
= std::move(endif_blocks
.top());
10036 endif_blocks
.pop();
10038 Block
*BB_else
= ctx
.block
;
10040 append_logical_end(BB_else
);
10041 /* branch from else block to endif block */
10042 bld
.branch(aco_opcode::p_branch
);
10043 add_edge(BB_else
->index
, &BB_endif
);
10044 BB_else
->kind
|= block_kind_uniform
;
10046 /** emit endif merge block */
10047 ctx
.block
= program
->insert_block(std::move(BB_endif
));
10048 bld
.reset(ctx
.block
);
10049 append_logical_start(ctx
.block
);
10052 program
->config
->float_mode
= program
->blocks
[0].fp_mode
.val
;
10054 append_logical_end(ctx
.block
);
10055 ctx
.block
->kind
|= block_kind_uniform
;
10056 bld
.sopp(aco_opcode::s_endpgm
);
10058 cleanup_cfg(program
);