2 * Copyright © 2016 Bas Nieuwenhuizen
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 #include "ac_nir_to_llvm.h"
25 #include "ac_llvm_build.h"
26 #include "ac_llvm_util.h"
27 #include "ac_binary.h"
30 #include "../vulkan/radv_descriptor_set.h"
31 #include "util/bitscan.h"
32 #include <llvm-c/Transforms/Scalar.h>
33 #include "ac_shader_abi.h"
34 #include "ac_shader_info.h"
35 #include "ac_shader_util.h"
36 #include "ac_exp_param.h"
38 enum radeon_llvm_calling_convention
{
39 RADEON_LLVM_AMDGPU_VS
= 87,
40 RADEON_LLVM_AMDGPU_GS
= 88,
41 RADEON_LLVM_AMDGPU_PS
= 89,
42 RADEON_LLVM_AMDGPU_CS
= 90,
43 RADEON_LLVM_AMDGPU_HS
= 93,
46 #define CONST_ADDR_SPACE 2
47 #define LOCAL_ADDR_SPACE 3
49 #define RADEON_LLVM_MAX_INPUTS (VARYING_SLOT_VAR31 + 1)
50 #define RADEON_LLVM_MAX_OUTPUTS (VARYING_SLOT_VAR31 + 1)
52 struct nir_to_llvm_context
;
54 struct ac_nir_context
{
55 struct ac_llvm_context ac
;
56 struct ac_shader_abi
*abi
;
58 gl_shader_stage stage
;
60 struct hash_table
*defs
;
61 struct hash_table
*phis
;
62 struct hash_table
*vars
;
64 LLVMValueRef main_function
;
65 LLVMBasicBlockRef continue_block
;
66 LLVMBasicBlockRef break_block
;
68 LLVMValueRef outputs
[RADEON_LLVM_MAX_OUTPUTS
* 4];
73 struct nir_to_llvm_context
*nctx
; /* TODO get rid of this */
76 struct nir_to_llvm_context
{
77 struct ac_llvm_context ac
;
78 const struct ac_nir_compiler_options
*options
;
79 struct ac_shader_variant_info
*shader_info
;
80 struct ac_shader_abi abi
;
81 struct ac_nir_context
*nir
;
83 unsigned max_workgroup_size
;
84 LLVMContextRef context
;
86 LLVMBuilderRef builder
;
87 LLVMValueRef main_function
;
89 struct hash_table
*defs
;
90 struct hash_table
*phis
;
92 LLVMValueRef descriptor_sets
[AC_UD_MAX_SETS
];
93 LLVMValueRef ring_offsets
;
94 LLVMValueRef push_constants
;
95 LLVMValueRef view_index
;
96 LLVMValueRef num_work_groups
;
97 LLVMValueRef workgroup_ids
[3];
98 LLVMValueRef local_invocation_ids
;
101 LLVMValueRef vertex_buffers
;
102 LLVMValueRef rel_auto_id
;
103 LLVMValueRef vs_prim_id
;
104 LLVMValueRef ls_out_layout
;
105 LLVMValueRef es2gs_offset
;
107 LLVMValueRef tcs_offchip_layout
;
108 LLVMValueRef tcs_out_offsets
;
109 LLVMValueRef tcs_out_layout
;
110 LLVMValueRef tcs_in_layout
;
112 LLVMValueRef merged_wave_info
;
113 LLVMValueRef tess_factor_offset
;
114 LLVMValueRef tcs_patch_id
;
115 LLVMValueRef tcs_rel_ids
;
116 LLVMValueRef tes_rel_patch_id
;
117 LLVMValueRef tes_patch_id
;
121 LLVMValueRef gsvs_ring_stride
;
122 LLVMValueRef gsvs_num_entries
;
123 LLVMValueRef gs2vs_offset
;
124 LLVMValueRef gs_wave_id
;
125 LLVMValueRef gs_vtx_offset
[6];
127 LLVMValueRef esgs_ring
;
128 LLVMValueRef gsvs_ring
;
129 LLVMValueRef hs_ring_tess_offchip
;
130 LLVMValueRef hs_ring_tess_factor
;
132 LLVMValueRef prim_mask
;
133 LLVMValueRef sample_pos_offset
;
134 LLVMValueRef persp_sample
, persp_center
, persp_centroid
;
135 LLVMValueRef linear_sample
, linear_center
, linear_centroid
;
137 gl_shader_stage stage
;
139 LLVMValueRef inputs
[RADEON_LLVM_MAX_INPUTS
* 4];
142 uint64_t output_mask
;
143 uint8_t num_output_clips
;
144 uint8_t num_output_culls
;
146 bool is_gs_copy_shader
;
147 LLVMValueRef gs_next_vertex
;
148 unsigned gs_max_out_vertices
;
150 unsigned tes_primitive_mode
;
151 uint64_t tess_outputs_written
;
152 uint64_t tess_patch_outputs_written
;
154 uint32_t tcs_patch_outputs_read
;
155 uint64_t tcs_outputs_read
;
158 static inline struct nir_to_llvm_context
*
159 nir_to_llvm_context_from_abi(struct ac_shader_abi
*abi
)
161 struct nir_to_llvm_context
*ctx
= NULL
;
162 return container_of(abi
, ctx
, abi
);
166 nir2llvmtype(struct ac_nir_context
*ctx
,
167 const struct glsl_type
*type
)
169 switch (glsl_get_base_type(glsl_without_array(type
))) {
173 case GLSL_TYPE_UINT64
:
174 case GLSL_TYPE_INT64
:
176 case GLSL_TYPE_DOUBLE
:
178 case GLSL_TYPE_FLOAT
:
181 assert(!"Unsupported type in nir2llvmtype()");
187 static LLVMValueRef
get_sampler_desc(struct ac_nir_context
*ctx
,
188 const nir_deref_var
*deref
,
189 enum ac_descriptor_type desc_type
,
190 const nir_tex_instr
*instr
,
191 bool image
, bool write
);
193 static unsigned radeon_llvm_reg_index_soa(unsigned index
, unsigned chan
)
195 return (index
* 4) + chan
;
198 static unsigned shader_io_get_unique_index(gl_varying_slot slot
)
200 /* handle patch indices separate */
201 if (slot
== VARYING_SLOT_TESS_LEVEL_OUTER
)
203 if (slot
== VARYING_SLOT_TESS_LEVEL_INNER
)
205 if (slot
>= VARYING_SLOT_PATCH0
&& slot
<= VARYING_SLOT_TESS_MAX
)
206 return 2 + (slot
- VARYING_SLOT_PATCH0
);
208 if (slot
== VARYING_SLOT_POS
)
210 if (slot
== VARYING_SLOT_PSIZ
)
212 if (slot
== VARYING_SLOT_CLIP_DIST0
)
214 /* 3 is reserved for clip dist as well */
215 if (slot
>= VARYING_SLOT_VAR0
&& slot
<= VARYING_SLOT_VAR31
)
216 return 4 + (slot
- VARYING_SLOT_VAR0
);
217 unreachable("illegal slot in get unique index\n");
220 static void set_llvm_calling_convention(LLVMValueRef func
,
221 gl_shader_stage stage
)
223 enum radeon_llvm_calling_convention calling_conv
;
226 case MESA_SHADER_VERTEX
:
227 case MESA_SHADER_TESS_EVAL
:
228 calling_conv
= RADEON_LLVM_AMDGPU_VS
;
230 case MESA_SHADER_GEOMETRY
:
231 calling_conv
= RADEON_LLVM_AMDGPU_GS
;
233 case MESA_SHADER_TESS_CTRL
:
234 calling_conv
= HAVE_LLVM
>= 0x0500 ? RADEON_LLVM_AMDGPU_HS
: RADEON_LLVM_AMDGPU_VS
;
236 case MESA_SHADER_FRAGMENT
:
237 calling_conv
= RADEON_LLVM_AMDGPU_PS
;
239 case MESA_SHADER_COMPUTE
:
240 calling_conv
= RADEON_LLVM_AMDGPU_CS
;
243 unreachable("Unhandle shader type");
246 LLVMSetFunctionCallConv(func
, calling_conv
);
251 LLVMTypeRef types
[MAX_ARGS
];
252 LLVMValueRef
*assign
[MAX_ARGS
];
253 unsigned array_params_mask
;
256 uint8_t num_sgprs_used
;
257 uint8_t num_vgprs_used
;
260 enum ac_arg_regfile
{
266 add_arg(struct arg_info
*info
, enum ac_arg_regfile regfile
, LLVMTypeRef type
,
267 LLVMValueRef
*param_ptr
)
269 assert(info
->count
< MAX_ARGS
);
271 info
->assign
[info
->count
] = param_ptr
;
272 info
->types
[info
->count
] = type
;
275 if (regfile
== ARG_SGPR
) {
276 info
->num_sgprs_used
+= ac_get_type_size(type
) / 4;
279 assert(regfile
== ARG_VGPR
);
280 info
->num_vgprs_used
+= ac_get_type_size(type
) / 4;
285 add_array_arg(struct arg_info
*info
, LLVMTypeRef type
, LLVMValueRef
*param_ptr
)
287 info
->array_params_mask
|= (1 << info
->count
);
288 add_arg(info
, ARG_SGPR
, type
, param_ptr
);
291 static void assign_arguments(LLVMValueRef main_function
,
292 struct arg_info
*info
)
295 for (i
= 0; i
< info
->count
; i
++) {
297 *info
->assign
[i
] = LLVMGetParam(main_function
, i
);
302 create_llvm_function(LLVMContextRef ctx
, LLVMModuleRef module
,
303 LLVMBuilderRef builder
, LLVMTypeRef
*return_types
,
304 unsigned num_return_elems
,
305 struct arg_info
*args
,
306 unsigned max_workgroup_size
,
309 LLVMTypeRef main_function_type
, ret_type
;
310 LLVMBasicBlockRef main_function_body
;
312 if (num_return_elems
)
313 ret_type
= LLVMStructTypeInContext(ctx
, return_types
,
314 num_return_elems
, true);
316 ret_type
= LLVMVoidTypeInContext(ctx
);
318 /* Setup the function */
320 LLVMFunctionType(ret_type
, args
->types
, args
->count
, 0);
321 LLVMValueRef main_function
=
322 LLVMAddFunction(module
, "main", main_function_type
);
324 LLVMAppendBasicBlockInContext(ctx
, main_function
, "main_body");
325 LLVMPositionBuilderAtEnd(builder
, main_function_body
);
327 LLVMSetFunctionCallConv(main_function
, RADEON_LLVM_AMDGPU_CS
);
328 for (unsigned i
= 0; i
< args
->sgpr_count
; ++i
) {
329 if (args
->array_params_mask
& (1 << i
)) {
330 LLVMValueRef P
= LLVMGetParam(main_function
, i
);
331 ac_add_function_attr(ctx
, main_function
, i
+ 1, AC_FUNC_ATTR_BYVAL
);
332 ac_add_attr_dereferenceable(P
, UINT64_MAX
);
335 ac_add_function_attr(ctx
, main_function
, i
+ 1, AC_FUNC_ATTR_INREG
);
339 if (max_workgroup_size
) {
340 ac_llvm_add_target_dep_function_attr(main_function
,
341 "amdgpu-max-work-group-size",
345 /* These were copied from some LLVM test. */
346 LLVMAddTargetDependentFunctionAttr(main_function
,
347 "less-precise-fpmad",
349 LLVMAddTargetDependentFunctionAttr(main_function
,
352 LLVMAddTargetDependentFunctionAttr(main_function
,
355 LLVMAddTargetDependentFunctionAttr(main_function
,
359 return main_function
;
362 static LLVMTypeRef
const_array(LLVMTypeRef elem_type
, int num_elements
)
364 return LLVMPointerType(LLVMArrayType(elem_type
, num_elements
),
368 static int get_elem_bits(struct ac_llvm_context
*ctx
, LLVMTypeRef type
)
370 if (LLVMGetTypeKind(type
) == LLVMVectorTypeKind
)
371 type
= LLVMGetElementType(type
);
373 if (LLVMGetTypeKind(type
) == LLVMIntegerTypeKind
)
374 return LLVMGetIntTypeWidth(type
);
376 if (type
== ctx
->f16
)
378 if (type
== ctx
->f32
)
380 if (type
== ctx
->f64
)
383 unreachable("Unhandled type kind in get_elem_bits");
386 static LLVMValueRef
unpack_param(struct ac_llvm_context
*ctx
,
387 LLVMValueRef param
, unsigned rshift
,
390 LLVMValueRef value
= param
;
392 value
= LLVMBuildLShr(ctx
->builder
, value
,
393 LLVMConstInt(ctx
->i32
, rshift
, false), "");
395 if (rshift
+ bitwidth
< 32) {
396 unsigned mask
= (1 << bitwidth
) - 1;
397 value
= LLVMBuildAnd(ctx
->builder
, value
,
398 LLVMConstInt(ctx
->i32
, mask
, false), "");
403 static LLVMValueRef
get_rel_patch_id(struct nir_to_llvm_context
*ctx
)
405 switch (ctx
->stage
) {
406 case MESA_SHADER_TESS_CTRL
:
407 return unpack_param(&ctx
->ac
, ctx
->tcs_rel_ids
, 0, 8);
408 case MESA_SHADER_TESS_EVAL
:
409 return ctx
->tes_rel_patch_id
;
412 unreachable("Illegal stage");
416 /* Tessellation shaders pass outputs to the next shader using LDS.
418 * LS outputs = TCS inputs
419 * TCS outputs = TES inputs
422 * - TCS inputs for patch 0
423 * - TCS inputs for patch 1
424 * - TCS inputs for patch 2 = get_tcs_in_current_patch_offset (if RelPatchID==2)
426 * - TCS outputs for patch 0 = get_tcs_out_patch0_offset
427 * - Per-patch TCS outputs for patch 0 = get_tcs_out_patch0_patch_data_offset
428 * - TCS outputs for patch 1
429 * - Per-patch TCS outputs for patch 1
430 * - TCS outputs for patch 2 = get_tcs_out_current_patch_offset (if RelPatchID==2)
431 * - Per-patch TCS outputs for patch 2 = get_tcs_out_current_patch_data_offset (if RelPatchID==2)
434 * All three shaders VS(LS), TCS, TES share the same LDS space.
437 get_tcs_in_patch_stride(struct nir_to_llvm_context
*ctx
)
439 if (ctx
->stage
== MESA_SHADER_VERTEX
)
440 return unpack_param(&ctx
->ac
, ctx
->ls_out_layout
, 0, 13);
441 else if (ctx
->stage
== MESA_SHADER_TESS_CTRL
)
442 return unpack_param(&ctx
->ac
, ctx
->tcs_in_layout
, 0, 13);
450 get_tcs_out_patch_stride(struct nir_to_llvm_context
*ctx
)
452 return unpack_param(&ctx
->ac
, ctx
->tcs_out_layout
, 0, 13);
456 get_tcs_out_patch0_offset(struct nir_to_llvm_context
*ctx
)
458 return LLVMBuildMul(ctx
->builder
,
459 unpack_param(&ctx
->ac
, ctx
->tcs_out_offsets
, 0, 16),
460 LLVMConstInt(ctx
->ac
.i32
, 4, false), "");
464 get_tcs_out_patch0_patch_data_offset(struct nir_to_llvm_context
*ctx
)
466 return LLVMBuildMul(ctx
->builder
,
467 unpack_param(&ctx
->ac
, ctx
->tcs_out_offsets
, 16, 16),
468 LLVMConstInt(ctx
->ac
.i32
, 4, false), "");
472 get_tcs_in_current_patch_offset(struct nir_to_llvm_context
*ctx
)
474 LLVMValueRef patch_stride
= get_tcs_in_patch_stride(ctx
);
475 LLVMValueRef rel_patch_id
= get_rel_patch_id(ctx
);
477 return LLVMBuildMul(ctx
->builder
, patch_stride
, rel_patch_id
, "");
481 get_tcs_out_current_patch_offset(struct nir_to_llvm_context
*ctx
)
483 LLVMValueRef patch0_offset
= get_tcs_out_patch0_offset(ctx
);
484 LLVMValueRef patch_stride
= get_tcs_out_patch_stride(ctx
);
485 LLVMValueRef rel_patch_id
= get_rel_patch_id(ctx
);
487 return LLVMBuildAdd(ctx
->builder
, patch0_offset
,
488 LLVMBuildMul(ctx
->builder
, patch_stride
,
494 get_tcs_out_current_patch_data_offset(struct nir_to_llvm_context
*ctx
)
496 LLVMValueRef patch0_patch_data_offset
=
497 get_tcs_out_patch0_patch_data_offset(ctx
);
498 LLVMValueRef patch_stride
= get_tcs_out_patch_stride(ctx
);
499 LLVMValueRef rel_patch_id
= get_rel_patch_id(ctx
);
501 return LLVMBuildAdd(ctx
->builder
, patch0_patch_data_offset
,
502 LLVMBuildMul(ctx
->builder
, patch_stride
,
508 set_loc(struct ac_userdata_info
*ud_info
, uint8_t *sgpr_idx
, uint8_t num_sgprs
,
509 uint32_t indirect_offset
)
511 ud_info
->sgpr_idx
= *sgpr_idx
;
512 ud_info
->num_sgprs
= num_sgprs
;
513 ud_info
->indirect
= indirect_offset
> 0;
514 ud_info
->indirect_offset
= indirect_offset
;
515 *sgpr_idx
+= num_sgprs
;
519 set_loc_shader(struct nir_to_llvm_context
*ctx
, int idx
, uint8_t *sgpr_idx
,
522 struct ac_userdata_info
*ud_info
=
523 &ctx
->shader_info
->user_sgprs_locs
.shader_data
[idx
];
526 set_loc(ud_info
, sgpr_idx
, num_sgprs
, 0);
530 set_loc_desc(struct nir_to_llvm_context
*ctx
, int idx
, uint8_t *sgpr_idx
,
531 uint32_t indirect_offset
)
533 struct ac_userdata_info
*ud_info
=
534 &ctx
->shader_info
->user_sgprs_locs
.descriptor_sets
[idx
];
537 set_loc(ud_info
, sgpr_idx
, 2, indirect_offset
);
540 struct user_sgpr_info
{
541 bool need_ring_offsets
;
543 bool indirect_all_descriptor_sets
;
546 static void allocate_user_sgprs(struct nir_to_llvm_context
*ctx
,
547 struct user_sgpr_info
*user_sgpr_info
)
549 memset(user_sgpr_info
, 0, sizeof(struct user_sgpr_info
));
551 /* until we sort out scratch/global buffers always assign ring offsets for gs/vs/es */
552 if (ctx
->stage
== MESA_SHADER_GEOMETRY
||
553 ctx
->stage
== MESA_SHADER_VERTEX
||
554 ctx
->stage
== MESA_SHADER_TESS_CTRL
||
555 ctx
->stage
== MESA_SHADER_TESS_EVAL
||
556 ctx
->is_gs_copy_shader
)
557 user_sgpr_info
->need_ring_offsets
= true;
559 if (ctx
->stage
== MESA_SHADER_FRAGMENT
&&
560 ctx
->shader_info
->info
.ps
.needs_sample_positions
)
561 user_sgpr_info
->need_ring_offsets
= true;
563 /* 2 user sgprs will nearly always be allocated for scratch/rings */
564 if (ctx
->options
->supports_spill
|| user_sgpr_info
->need_ring_offsets
) {
565 user_sgpr_info
->sgpr_count
+= 2;
568 switch (ctx
->stage
) {
569 case MESA_SHADER_COMPUTE
:
570 if (ctx
->shader_info
->info
.cs
.uses_grid_size
)
571 user_sgpr_info
->sgpr_count
+= 3;
573 case MESA_SHADER_FRAGMENT
:
574 user_sgpr_info
->sgpr_count
+= ctx
->shader_info
->info
.ps
.needs_sample_positions
;
576 case MESA_SHADER_VERTEX
:
577 if (!ctx
->is_gs_copy_shader
) {
578 user_sgpr_info
->sgpr_count
+= ctx
->shader_info
->info
.vs
.has_vertex_buffers
? 2 : 0;
579 if (ctx
->shader_info
->info
.vs
.needs_draw_id
) {
580 user_sgpr_info
->sgpr_count
+= 3;
582 user_sgpr_info
->sgpr_count
+= 2;
585 if (ctx
->options
->key
.vs
.as_ls
)
586 user_sgpr_info
->sgpr_count
++;
588 case MESA_SHADER_TESS_CTRL
:
589 user_sgpr_info
->sgpr_count
+= 4;
591 case MESA_SHADER_TESS_EVAL
:
592 user_sgpr_info
->sgpr_count
+= 1;
594 case MESA_SHADER_GEOMETRY
:
595 user_sgpr_info
->sgpr_count
+= 2;
601 if (ctx
->shader_info
->info
.needs_push_constants
)
602 user_sgpr_info
->sgpr_count
+= 2;
604 uint32_t remaining_sgprs
= 16 - user_sgpr_info
->sgpr_count
;
605 if (remaining_sgprs
/ 2 < util_bitcount(ctx
->shader_info
->info
.desc_set_used_mask
)) {
606 user_sgpr_info
->sgpr_count
+= 2;
607 user_sgpr_info
->indirect_all_descriptor_sets
= true;
609 user_sgpr_info
->sgpr_count
+= util_bitcount(ctx
->shader_info
->info
.desc_set_used_mask
) * 2;
614 declare_global_input_sgprs(struct nir_to_llvm_context
*ctx
,
615 gl_shader_stage stage
,
616 bool has_previous_stage
,
617 gl_shader_stage previous_stage
,
618 const struct user_sgpr_info
*user_sgpr_info
,
619 struct arg_info
*args
,
620 LLVMValueRef
*desc_sets
)
622 LLVMTypeRef type
= const_array(ctx
->ac
.i8
, 1024 * 1024);
623 unsigned num_sets
= ctx
->options
->layout
?
624 ctx
->options
->layout
->num_sets
: 0;
625 unsigned stage_mask
= 1 << stage
;
627 if (has_previous_stage
)
628 stage_mask
|= 1 << previous_stage
;
630 /* 1 for each descriptor set */
631 if (!user_sgpr_info
->indirect_all_descriptor_sets
) {
632 for (unsigned i
= 0; i
< num_sets
; ++i
) {
633 if (ctx
->options
->layout
->set
[i
].layout
->shader_stages
& stage_mask
) {
634 add_array_arg(args
, type
,
635 &ctx
->descriptor_sets
[i
]);
639 add_array_arg(args
, const_array(type
, 32), desc_sets
);
642 if (ctx
->shader_info
->info
.needs_push_constants
) {
643 /* 1 for push constants and dynamic descriptors */
644 add_array_arg(args
, type
, &ctx
->push_constants
);
649 declare_vs_specific_input_sgprs(struct nir_to_llvm_context
*ctx
,
650 gl_shader_stage stage
,
651 bool has_previous_stage
,
652 gl_shader_stage previous_stage
,
653 struct arg_info
*args
)
655 if (!ctx
->is_gs_copy_shader
&&
656 (stage
== MESA_SHADER_VERTEX
||
657 (has_previous_stage
&& previous_stage
== MESA_SHADER_VERTEX
))) {
658 if (ctx
->shader_info
->info
.vs
.has_vertex_buffers
) {
659 add_arg(args
, ARG_SGPR
, const_array(ctx
->ac
.v4i32
, 16),
660 &ctx
->vertex_buffers
);
662 add_arg(args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->abi
.base_vertex
);
663 add_arg(args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->abi
.start_instance
);
664 if (ctx
->shader_info
->info
.vs
.needs_draw_id
) {
665 add_arg(args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->abi
.draw_id
);
671 declare_vs_input_vgprs(struct nir_to_llvm_context
*ctx
, struct arg_info
*args
)
673 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->abi
.vertex_id
);
674 if (!ctx
->is_gs_copy_shader
) {
675 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->rel_auto_id
);
676 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->vs_prim_id
);
677 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->abi
.instance_id
);
682 declare_tes_input_vgprs(struct nir_to_llvm_context
*ctx
, struct arg_info
*args
)
684 add_arg(args
, ARG_VGPR
, ctx
->ac
.f32
, &ctx
->tes_u
);
685 add_arg(args
, ARG_VGPR
, ctx
->ac
.f32
, &ctx
->tes_v
);
686 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->tes_rel_patch_id
);
687 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->tes_patch_id
);
691 set_global_input_locs(struct nir_to_llvm_context
*ctx
, gl_shader_stage stage
,
692 bool has_previous_stage
, gl_shader_stage previous_stage
,
693 const struct user_sgpr_info
*user_sgpr_info
,
694 LLVMValueRef desc_sets
, uint8_t *user_sgpr_idx
)
696 unsigned num_sets
= ctx
->options
->layout
?
697 ctx
->options
->layout
->num_sets
: 0;
698 unsigned stage_mask
= 1 << stage
;
700 if (has_previous_stage
)
701 stage_mask
|= 1 << previous_stage
;
703 if (!user_sgpr_info
->indirect_all_descriptor_sets
) {
704 for (unsigned i
= 0; i
< num_sets
; ++i
) {
705 if (ctx
->options
->layout
->set
[i
].layout
->shader_stages
& stage_mask
) {
706 set_loc_desc(ctx
, i
, user_sgpr_idx
, 0);
708 ctx
->descriptor_sets
[i
] = NULL
;
711 set_loc_shader(ctx
, AC_UD_INDIRECT_DESCRIPTOR_SETS
,
714 for (unsigned i
= 0; i
< num_sets
; ++i
) {
715 if (ctx
->options
->layout
->set
[i
].layout
->shader_stages
& stage_mask
) {
716 set_loc_desc(ctx
, i
, user_sgpr_idx
, i
* 8);
717 ctx
->descriptor_sets
[i
] =
718 ac_build_load_to_sgpr(&ctx
->ac
,
720 LLVMConstInt(ctx
->ac
.i32
, i
, false));
723 ctx
->descriptor_sets
[i
] = NULL
;
725 ctx
->shader_info
->need_indirect_descriptor_sets
= true;
728 if (ctx
->shader_info
->info
.needs_push_constants
) {
729 set_loc_shader(ctx
, AC_UD_PUSH_CONSTANTS
, user_sgpr_idx
, 2);
734 set_vs_specific_input_locs(struct nir_to_llvm_context
*ctx
,
735 gl_shader_stage stage
, bool has_previous_stage
,
736 gl_shader_stage previous_stage
,
737 uint8_t *user_sgpr_idx
)
739 if (!ctx
->is_gs_copy_shader
&&
740 (stage
== MESA_SHADER_VERTEX
||
741 (has_previous_stage
&& previous_stage
== MESA_SHADER_VERTEX
))) {
742 if (ctx
->shader_info
->info
.vs
.has_vertex_buffers
) {
743 set_loc_shader(ctx
, AC_UD_VS_VERTEX_BUFFERS
,
748 if (ctx
->shader_info
->info
.vs
.needs_draw_id
)
751 set_loc_shader(ctx
, AC_UD_VS_BASE_VERTEX_START_INSTANCE
,
752 user_sgpr_idx
, vs_num
);
756 static void create_function(struct nir_to_llvm_context
*ctx
,
757 gl_shader_stage stage
,
758 bool has_previous_stage
,
759 gl_shader_stage previous_stage
)
761 uint8_t user_sgpr_idx
;
762 struct user_sgpr_info user_sgpr_info
;
763 struct arg_info args
= {};
764 LLVMValueRef desc_sets
;
766 allocate_user_sgprs(ctx
, &user_sgpr_info
);
768 if (user_sgpr_info
.need_ring_offsets
&& !ctx
->options
->supports_spill
) {
769 add_arg(&args
, ARG_SGPR
, const_array(ctx
->ac
.v4i32
, 16),
774 case MESA_SHADER_COMPUTE
:
775 declare_global_input_sgprs(ctx
, stage
, has_previous_stage
,
776 previous_stage
, &user_sgpr_info
,
779 if (ctx
->shader_info
->info
.cs
.uses_grid_size
) {
780 add_arg(&args
, ARG_SGPR
, ctx
->ac
.v3i32
,
781 &ctx
->num_work_groups
);
784 for (int i
= 0; i
< 3; i
++) {
785 ctx
->workgroup_ids
[i
] = NULL
;
786 if (ctx
->shader_info
->info
.cs
.uses_block_id
[i
]) {
787 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
788 &ctx
->workgroup_ids
[i
]);
792 if (ctx
->shader_info
->info
.cs
.uses_local_invocation_idx
)
793 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->tg_size
);
794 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v3i32
,
795 &ctx
->local_invocation_ids
);
797 case MESA_SHADER_VERTEX
:
798 declare_global_input_sgprs(ctx
, stage
, has_previous_stage
,
799 previous_stage
, &user_sgpr_info
,
801 declare_vs_specific_input_sgprs(ctx
, stage
, has_previous_stage
,
802 previous_stage
, &args
);
804 if (ctx
->shader_info
->info
.needs_multiview_view_index
|| (!ctx
->options
->key
.vs
.as_es
&& !ctx
->options
->key
.vs
.as_ls
&& ctx
->options
->key
.has_multiview_view_index
))
805 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->view_index
);
806 if (ctx
->options
->key
.vs
.as_es
)
807 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
809 else if (ctx
->options
->key
.vs
.as_ls
)
810 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
811 &ctx
->ls_out_layout
);
813 declare_vs_input_vgprs(ctx
, &args
);
815 case MESA_SHADER_TESS_CTRL
:
816 if (has_previous_stage
) {
817 // First 6 system regs
818 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->oc_lds
);
819 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
820 &ctx
->merged_wave_info
);
821 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
822 &ctx
->tess_factor_offset
);
824 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
); // scratch offset
825 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
); // unknown
826 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
); // unknown
828 declare_global_input_sgprs(ctx
, stage
,
831 &user_sgpr_info
, &args
,
833 declare_vs_specific_input_sgprs(ctx
, stage
,
835 previous_stage
, &args
);
837 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
838 &ctx
->ls_out_layout
);
840 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
841 &ctx
->tcs_offchip_layout
);
842 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
843 &ctx
->tcs_out_offsets
);
844 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
845 &ctx
->tcs_out_layout
);
846 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
847 &ctx
->tcs_in_layout
);
848 if (ctx
->shader_info
->info
.needs_multiview_view_index
)
849 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
852 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
854 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
857 declare_vs_input_vgprs(ctx
, &args
);
859 declare_global_input_sgprs(ctx
, stage
,
862 &user_sgpr_info
, &args
,
865 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
866 &ctx
->tcs_offchip_layout
);
867 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
868 &ctx
->tcs_out_offsets
);
869 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
870 &ctx
->tcs_out_layout
);
871 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
872 &ctx
->tcs_in_layout
);
873 if (ctx
->shader_info
->info
.needs_multiview_view_index
)
874 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
877 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->oc_lds
);
878 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
879 &ctx
->tess_factor_offset
);
880 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
882 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
886 case MESA_SHADER_TESS_EVAL
:
887 declare_global_input_sgprs(ctx
, stage
, has_previous_stage
,
888 previous_stage
, &user_sgpr_info
,
891 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->tcs_offchip_layout
);
892 if (ctx
->shader_info
->info
.needs_multiview_view_index
|| (!ctx
->options
->key
.tes
.as_es
&& ctx
->options
->key
.has_multiview_view_index
))
893 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->view_index
);
895 if (ctx
->options
->key
.tes
.as_es
) {
896 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->oc_lds
);
897 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
);
898 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
901 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
);
902 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->oc_lds
);
904 declare_tes_input_vgprs(ctx
, &args
);
906 case MESA_SHADER_GEOMETRY
:
907 if (has_previous_stage
) {
908 // First 6 system regs
909 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
911 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
912 &ctx
->merged_wave_info
);
913 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->oc_lds
);
915 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
); // scratch offset
916 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
); // unknown
917 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
); // unknown
919 declare_global_input_sgprs(ctx
, stage
,
922 &user_sgpr_info
, &args
,
925 if (previous_stage
== MESA_SHADER_TESS_EVAL
) {
926 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
927 &ctx
->tcs_offchip_layout
);
929 declare_vs_specific_input_sgprs(ctx
, stage
,
935 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
936 &ctx
->gsvs_ring_stride
);
937 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
938 &ctx
->gsvs_num_entries
);
939 if (ctx
->shader_info
->info
.needs_multiview_view_index
)
940 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
943 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
944 &ctx
->gs_vtx_offset
[0]);
945 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
946 &ctx
->gs_vtx_offset
[2]);
947 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
948 &ctx
->abi
.gs_prim_id
);
949 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
950 &ctx
->abi
.gs_invocation_id
);
951 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
952 &ctx
->gs_vtx_offset
[4]);
954 if (previous_stage
== MESA_SHADER_VERTEX
) {
955 declare_vs_input_vgprs(ctx
, &args
);
957 declare_tes_input_vgprs(ctx
, &args
);
960 declare_global_input_sgprs(ctx
, stage
,
963 &user_sgpr_info
, &args
,
966 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
967 &ctx
->gsvs_ring_stride
);
968 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
969 &ctx
->gsvs_num_entries
);
970 if (ctx
->shader_info
->info
.needs_multiview_view_index
)
971 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
974 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->gs2vs_offset
);
975 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->gs_wave_id
);
976 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
977 &ctx
->gs_vtx_offset
[0]);
978 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
979 &ctx
->gs_vtx_offset
[1]);
980 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
981 &ctx
->abi
.gs_prim_id
);
982 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
983 &ctx
->gs_vtx_offset
[2]);
984 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
985 &ctx
->gs_vtx_offset
[3]);
986 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
987 &ctx
->gs_vtx_offset
[4]);
988 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
989 &ctx
->gs_vtx_offset
[5]);
990 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
991 &ctx
->abi
.gs_invocation_id
);
994 case MESA_SHADER_FRAGMENT
:
995 declare_global_input_sgprs(ctx
, stage
, has_previous_stage
,
996 previous_stage
, &user_sgpr_info
,
999 if (ctx
->shader_info
->info
.ps
.needs_sample_positions
)
1000 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
1001 &ctx
->sample_pos_offset
);
1003 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->prim_mask
);
1004 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v2i32
, &ctx
->persp_sample
);
1005 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v2i32
, &ctx
->persp_center
);
1006 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v2i32
, &ctx
->persp_centroid
);
1007 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v3i32
, NULL
); /* persp pull model */
1008 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v2i32
, &ctx
->linear_sample
);
1009 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v2i32
, &ctx
->linear_center
);
1010 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v2i32
, &ctx
->linear_centroid
);
1011 add_arg(&args
, ARG_VGPR
, ctx
->ac
.f32
, NULL
); /* line stipple tex */
1012 add_arg(&args
, ARG_VGPR
, ctx
->ac
.f32
, &ctx
->abi
.frag_pos
[0]);
1013 add_arg(&args
, ARG_VGPR
, ctx
->ac
.f32
, &ctx
->abi
.frag_pos
[1]);
1014 add_arg(&args
, ARG_VGPR
, ctx
->ac
.f32
, &ctx
->abi
.frag_pos
[2]);
1015 add_arg(&args
, ARG_VGPR
, ctx
->ac
.f32
, &ctx
->abi
.frag_pos
[3]);
1016 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->abi
.front_face
);
1017 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->abi
.ancillary
);
1018 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->abi
.sample_coverage
);
1019 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
, NULL
); /* fixed pt */
1022 unreachable("Shader stage not implemented");
1025 ctx
->main_function
= create_llvm_function(
1026 ctx
->context
, ctx
->module
, ctx
->builder
, NULL
, 0, &args
,
1027 ctx
->max_workgroup_size
,
1028 ctx
->options
->unsafe_math
);
1029 set_llvm_calling_convention(ctx
->main_function
, stage
);
1032 ctx
->shader_info
->num_input_vgprs
= 0;
1033 ctx
->shader_info
->num_input_sgprs
= ctx
->options
->supports_spill
? 2 : 0;
1035 ctx
->shader_info
->num_input_sgprs
+= args
.num_sgprs_used
;
1037 if (ctx
->stage
!= MESA_SHADER_FRAGMENT
)
1038 ctx
->shader_info
->num_input_vgprs
= args
.num_vgprs_used
;
1040 assign_arguments(ctx
->main_function
, &args
);
1044 if (ctx
->options
->supports_spill
|| user_sgpr_info
.need_ring_offsets
) {
1045 set_loc_shader(ctx
, AC_UD_SCRATCH_RING_OFFSETS
,
1047 if (ctx
->options
->supports_spill
) {
1048 ctx
->ring_offsets
= ac_build_intrinsic(&ctx
->ac
, "llvm.amdgcn.implicit.buffer.ptr",
1049 LLVMPointerType(ctx
->ac
.i8
, CONST_ADDR_SPACE
),
1050 NULL
, 0, AC_FUNC_ATTR_READNONE
);
1051 ctx
->ring_offsets
= LLVMBuildBitCast(ctx
->builder
, ctx
->ring_offsets
,
1052 const_array(ctx
->ac
.v4i32
, 16), "");
1056 /* For merged shaders the user SGPRs start at 8, with 8 system SGPRs in front (including
1057 * the rw_buffers at s0/s1. With user SGPR0 = s8, lets restart the count from 0 */
1058 if (has_previous_stage
)
1061 set_global_input_locs(ctx
, stage
, has_previous_stage
, previous_stage
,
1062 &user_sgpr_info
, desc_sets
, &user_sgpr_idx
);
1065 case MESA_SHADER_COMPUTE
:
1066 if (ctx
->shader_info
->info
.cs
.uses_grid_size
) {
1067 set_loc_shader(ctx
, AC_UD_CS_GRID_SIZE
,
1071 case MESA_SHADER_VERTEX
:
1072 set_vs_specific_input_locs(ctx
, stage
, has_previous_stage
,
1073 previous_stage
, &user_sgpr_idx
);
1074 if (ctx
->view_index
)
1075 set_loc_shader(ctx
, AC_UD_VIEW_INDEX
, &user_sgpr_idx
, 1);
1076 if (ctx
->options
->key
.vs
.as_ls
) {
1077 set_loc_shader(ctx
, AC_UD_VS_LS_TCS_IN_LAYOUT
,
1080 if (ctx
->options
->key
.vs
.as_ls
)
1081 ac_declare_lds_as_pointer(&ctx
->ac
);
1083 case MESA_SHADER_TESS_CTRL
:
1084 set_vs_specific_input_locs(ctx
, stage
, has_previous_stage
,
1085 previous_stage
, &user_sgpr_idx
);
1086 if (has_previous_stage
)
1087 set_loc_shader(ctx
, AC_UD_VS_LS_TCS_IN_LAYOUT
,
1089 set_loc_shader(ctx
, AC_UD_TCS_OFFCHIP_LAYOUT
, &user_sgpr_idx
, 4);
1090 if (ctx
->view_index
)
1091 set_loc_shader(ctx
, AC_UD_VIEW_INDEX
, &user_sgpr_idx
, 1);
1092 ac_declare_lds_as_pointer(&ctx
->ac
);
1094 case MESA_SHADER_TESS_EVAL
:
1095 set_loc_shader(ctx
, AC_UD_TES_OFFCHIP_LAYOUT
, &user_sgpr_idx
, 1);
1096 if (ctx
->view_index
)
1097 set_loc_shader(ctx
, AC_UD_VIEW_INDEX
, &user_sgpr_idx
, 1);
1099 case MESA_SHADER_GEOMETRY
:
1100 if (has_previous_stage
) {
1101 if (previous_stage
== MESA_SHADER_VERTEX
)
1102 set_vs_specific_input_locs(ctx
, stage
,
1107 set_loc_shader(ctx
, AC_UD_TES_OFFCHIP_LAYOUT
,
1110 set_loc_shader(ctx
, AC_UD_GS_VS_RING_STRIDE_ENTRIES
,
1112 if (ctx
->view_index
)
1113 set_loc_shader(ctx
, AC_UD_VIEW_INDEX
, &user_sgpr_idx
, 1);
1114 if (has_previous_stage
)
1115 ac_declare_lds_as_pointer(&ctx
->ac
);
1117 case MESA_SHADER_FRAGMENT
:
1118 if (ctx
->shader_info
->info
.ps
.needs_sample_positions
) {
1119 set_loc_shader(ctx
, AC_UD_PS_SAMPLE_POS_OFFSET
,
1124 unreachable("Shader stage not implemented");
1127 ctx
->shader_info
->num_user_sgprs
= user_sgpr_idx
;
1130 static int get_llvm_num_components(LLVMValueRef value
)
1132 LLVMTypeRef type
= LLVMTypeOf(value
);
1133 unsigned num_components
= LLVMGetTypeKind(type
) == LLVMVectorTypeKind
1134 ? LLVMGetVectorSize(type
)
1136 return num_components
;
1139 static LLVMValueRef
llvm_extract_elem(struct ac_llvm_context
*ac
,
1143 int count
= get_llvm_num_components(value
);
1148 return LLVMBuildExtractElement(ac
->builder
, value
,
1149 LLVMConstInt(ac
->i32
, index
, false), "");
1152 static LLVMValueRef
trim_vector(struct ac_llvm_context
*ctx
,
1153 LLVMValueRef value
, unsigned count
)
1155 unsigned num_components
= get_llvm_num_components(value
);
1156 if (count
== num_components
)
1159 LLVMValueRef masks
[] = {
1160 LLVMConstInt(ctx
->i32
, 0, false), LLVMConstInt(ctx
->i32
, 1, false),
1161 LLVMConstInt(ctx
->i32
, 2, false), LLVMConstInt(ctx
->i32
, 3, false)};
1164 return LLVMBuildExtractElement(ctx
->builder
, value
, masks
[0],
1167 LLVMValueRef swizzle
= LLVMConstVector(masks
, count
);
1168 return LLVMBuildShuffleVector(ctx
->builder
, value
, value
, swizzle
, "");
1172 build_store_values_extended(struct ac_llvm_context
*ac
,
1173 LLVMValueRef
*values
,
1174 unsigned value_count
,
1175 unsigned value_stride
,
1178 LLVMBuilderRef builder
= ac
->builder
;
1181 for (i
= 0; i
< value_count
; i
++) {
1182 LLVMValueRef ptr
= values
[i
* value_stride
];
1183 LLVMValueRef index
= LLVMConstInt(ac
->i32
, i
, false);
1184 LLVMValueRef value
= LLVMBuildExtractElement(builder
, vec
, index
, "");
1185 LLVMBuildStore(builder
, value
, ptr
);
1189 static LLVMTypeRef
get_def_type(struct ac_nir_context
*ctx
,
1190 const nir_ssa_def
*def
)
1192 LLVMTypeRef type
= LLVMIntTypeInContext(ctx
->ac
.context
, def
->bit_size
);
1193 if (def
->num_components
> 1) {
1194 type
= LLVMVectorType(type
, def
->num_components
);
1199 static LLVMValueRef
get_src(struct ac_nir_context
*nir
, nir_src src
)
1202 struct hash_entry
*entry
= _mesa_hash_table_search(nir
->defs
, src
.ssa
);
1203 return (LLVMValueRef
)entry
->data
;
1207 static LLVMBasicBlockRef
get_block(struct ac_nir_context
*nir
,
1208 const struct nir_block
*b
)
1210 struct hash_entry
*entry
= _mesa_hash_table_search(nir
->defs
, b
);
1211 return (LLVMBasicBlockRef
)entry
->data
;
1214 static LLVMValueRef
get_alu_src(struct ac_nir_context
*ctx
,
1216 unsigned num_components
)
1218 LLVMValueRef value
= get_src(ctx
, src
.src
);
1219 bool need_swizzle
= false;
1222 LLVMTypeRef type
= LLVMTypeOf(value
);
1223 unsigned src_components
= LLVMGetTypeKind(type
) == LLVMVectorTypeKind
1224 ? LLVMGetVectorSize(type
)
1227 for (unsigned i
= 0; i
< num_components
; ++i
) {
1228 assert(src
.swizzle
[i
] < src_components
);
1229 if (src
.swizzle
[i
] != i
)
1230 need_swizzle
= true;
1233 if (need_swizzle
|| num_components
!= src_components
) {
1234 LLVMValueRef masks
[] = {
1235 LLVMConstInt(ctx
->ac
.i32
, src
.swizzle
[0], false),
1236 LLVMConstInt(ctx
->ac
.i32
, src
.swizzle
[1], false),
1237 LLVMConstInt(ctx
->ac
.i32
, src
.swizzle
[2], false),
1238 LLVMConstInt(ctx
->ac
.i32
, src
.swizzle
[3], false)};
1240 if (src_components
> 1 && num_components
== 1) {
1241 value
= LLVMBuildExtractElement(ctx
->ac
.builder
, value
,
1243 } else if (src_components
== 1 && num_components
> 1) {
1244 LLVMValueRef values
[] = {value
, value
, value
, value
};
1245 value
= ac_build_gather_values(&ctx
->ac
, values
, num_components
);
1247 LLVMValueRef swizzle
= LLVMConstVector(masks
, num_components
);
1248 value
= LLVMBuildShuffleVector(ctx
->ac
.builder
, value
, value
,
1252 assert(!src
.negate
);
1257 static LLVMValueRef
emit_int_cmp(struct ac_llvm_context
*ctx
,
1258 LLVMIntPredicate pred
, LLVMValueRef src0
,
1261 LLVMValueRef result
= LLVMBuildICmp(ctx
->builder
, pred
, src0
, src1
, "");
1262 return LLVMBuildSelect(ctx
->builder
, result
,
1263 LLVMConstInt(ctx
->i32
, 0xFFFFFFFF, false),
1267 static LLVMValueRef
emit_float_cmp(struct ac_llvm_context
*ctx
,
1268 LLVMRealPredicate pred
, LLVMValueRef src0
,
1271 LLVMValueRef result
;
1272 src0
= ac_to_float(ctx
, src0
);
1273 src1
= ac_to_float(ctx
, src1
);
1274 result
= LLVMBuildFCmp(ctx
->builder
, pred
, src0
, src1
, "");
1275 return LLVMBuildSelect(ctx
->builder
, result
,
1276 LLVMConstInt(ctx
->i32
, 0xFFFFFFFF, false),
1280 static LLVMValueRef
emit_intrin_1f_param(struct ac_llvm_context
*ctx
,
1282 LLVMTypeRef result_type
,
1286 LLVMValueRef params
[] = {
1287 ac_to_float(ctx
, src0
),
1290 MAYBE_UNUSED
const int length
= snprintf(name
, sizeof(name
), "%s.f%d", intrin
,
1291 get_elem_bits(ctx
, result_type
));
1292 assert(length
< sizeof(name
));
1293 return ac_build_intrinsic(ctx
, name
, result_type
, params
, 1, AC_FUNC_ATTR_READNONE
);
1296 static LLVMValueRef
emit_intrin_2f_param(struct ac_llvm_context
*ctx
,
1298 LLVMTypeRef result_type
,
1299 LLVMValueRef src0
, LLVMValueRef src1
)
1302 LLVMValueRef params
[] = {
1303 ac_to_float(ctx
, src0
),
1304 ac_to_float(ctx
, src1
),
1307 MAYBE_UNUSED
const int length
= snprintf(name
, sizeof(name
), "%s.f%d", intrin
,
1308 get_elem_bits(ctx
, result_type
));
1309 assert(length
< sizeof(name
));
1310 return ac_build_intrinsic(ctx
, name
, result_type
, params
, 2, AC_FUNC_ATTR_READNONE
);
1313 static LLVMValueRef
emit_intrin_3f_param(struct ac_llvm_context
*ctx
,
1315 LLVMTypeRef result_type
,
1316 LLVMValueRef src0
, LLVMValueRef src1
, LLVMValueRef src2
)
1319 LLVMValueRef params
[] = {
1320 ac_to_float(ctx
, src0
),
1321 ac_to_float(ctx
, src1
),
1322 ac_to_float(ctx
, src2
),
1325 MAYBE_UNUSED
const int length
= snprintf(name
, sizeof(name
), "%s.f%d", intrin
,
1326 get_elem_bits(ctx
, result_type
));
1327 assert(length
< sizeof(name
));
1328 return ac_build_intrinsic(ctx
, name
, result_type
, params
, 3, AC_FUNC_ATTR_READNONE
);
1331 static LLVMValueRef
emit_bcsel(struct ac_llvm_context
*ctx
,
1332 LLVMValueRef src0
, LLVMValueRef src1
, LLVMValueRef src2
)
1334 LLVMValueRef v
= LLVMBuildICmp(ctx
->builder
, LLVMIntNE
, src0
,
1336 return LLVMBuildSelect(ctx
->builder
, v
, src1
, src2
, "");
1339 static LLVMValueRef
emit_minmax_int(struct ac_llvm_context
*ctx
,
1340 LLVMIntPredicate pred
,
1341 LLVMValueRef src0
, LLVMValueRef src1
)
1343 return LLVMBuildSelect(ctx
->builder
,
1344 LLVMBuildICmp(ctx
->builder
, pred
, src0
, src1
, ""),
1349 static LLVMValueRef
emit_iabs(struct ac_llvm_context
*ctx
,
1352 return emit_minmax_int(ctx
, LLVMIntSGT
, src0
,
1353 LLVMBuildNeg(ctx
->builder
, src0
, ""));
1356 static LLVMValueRef
emit_fsign(struct ac_llvm_context
*ctx
,
1359 LLVMValueRef cmp
, val
;
1361 cmp
= LLVMBuildFCmp(ctx
->builder
, LLVMRealOGT
, src0
, ctx
->f32_0
, "");
1362 val
= LLVMBuildSelect(ctx
->builder
, cmp
, ctx
->f32_1
, src0
, "");
1363 cmp
= LLVMBuildFCmp(ctx
->builder
, LLVMRealOGE
, val
, ctx
->f32_0
, "");
1364 val
= LLVMBuildSelect(ctx
->builder
, cmp
, val
, LLVMConstReal(ctx
->f32
, -1.0), "");
1368 static LLVMValueRef
emit_isign(struct ac_llvm_context
*ctx
,
1371 LLVMValueRef cmp
, val
;
1373 cmp
= LLVMBuildICmp(ctx
->builder
, LLVMIntSGT
, src0
, ctx
->i32_0
, "");
1374 val
= LLVMBuildSelect(ctx
->builder
, cmp
, ctx
->i32_1
, src0
, "");
1375 cmp
= LLVMBuildICmp(ctx
->builder
, LLVMIntSGE
, val
, ctx
->i32_0
, "");
1376 val
= LLVMBuildSelect(ctx
->builder
, cmp
, val
, LLVMConstInt(ctx
->i32
, -1, true), "");
1380 static LLVMValueRef
emit_ffract(struct ac_llvm_context
*ctx
,
1383 const char *intr
= "llvm.floor.f32";
1384 LLVMValueRef fsrc0
= ac_to_float(ctx
, src0
);
1385 LLVMValueRef params
[] = {
1388 LLVMValueRef floor
= ac_build_intrinsic(ctx
, intr
,
1389 ctx
->f32
, params
, 1,
1390 AC_FUNC_ATTR_READNONE
);
1391 return LLVMBuildFSub(ctx
->builder
, fsrc0
, floor
, "");
1394 static LLVMValueRef
emit_uint_carry(struct ac_llvm_context
*ctx
,
1396 LLVMValueRef src0
, LLVMValueRef src1
)
1398 LLVMTypeRef ret_type
;
1399 LLVMTypeRef types
[] = { ctx
->i32
, ctx
->i1
};
1401 LLVMValueRef params
[] = { src0
, src1
};
1402 ret_type
= LLVMStructTypeInContext(ctx
->context
, types
,
1405 res
= ac_build_intrinsic(ctx
, intrin
, ret_type
,
1406 params
, 2, AC_FUNC_ATTR_READNONE
);
1408 res
= LLVMBuildExtractValue(ctx
->builder
, res
, 1, "");
1409 res
= LLVMBuildZExt(ctx
->builder
, res
, ctx
->i32
, "");
1413 static LLVMValueRef
emit_b2f(struct ac_llvm_context
*ctx
,
1416 return LLVMBuildAnd(ctx
->builder
, src0
, LLVMBuildBitCast(ctx
->builder
, LLVMConstReal(ctx
->f32
, 1.0), ctx
->i32
, ""), "");
1419 static LLVMValueRef
emit_f2b(struct ac_llvm_context
*ctx
,
1422 src0
= ac_to_float(ctx
, src0
);
1423 return LLVMBuildSExt(ctx
->builder
,
1424 LLVMBuildFCmp(ctx
->builder
, LLVMRealUNE
, src0
, ctx
->f32_0
, ""),
1428 static LLVMValueRef
emit_b2i(struct ac_llvm_context
*ctx
,
1431 return LLVMBuildAnd(ctx
->builder
, src0
, ctx
->i32_1
, "");
1434 static LLVMValueRef
emit_i2b(struct ac_llvm_context
*ctx
,
1437 return LLVMBuildSExt(ctx
->builder
,
1438 LLVMBuildICmp(ctx
->builder
, LLVMIntNE
, src0
, ctx
->i32_0
, ""),
1442 static LLVMValueRef
emit_f2f16(struct nir_to_llvm_context
*ctx
,
1445 LLVMValueRef result
;
1446 LLVMValueRef cond
= NULL
;
1448 src0
= ac_to_float(&ctx
->ac
, src0
);
1449 result
= LLVMBuildFPTrunc(ctx
->builder
, src0
, ctx
->ac
.f16
, "");
1451 if (ctx
->options
->chip_class
>= VI
) {
1452 LLVMValueRef args
[2];
1453 /* Check if the result is a denormal - and flush to 0 if so. */
1455 args
[1] = LLVMConstInt(ctx
->ac
.i32
, N_SUBNORMAL
| P_SUBNORMAL
, false);
1456 cond
= ac_build_intrinsic(&ctx
->ac
, "llvm.amdgcn.class.f16", ctx
->ac
.i1
, args
, 2, AC_FUNC_ATTR_READNONE
);
1459 /* need to convert back up to f32 */
1460 result
= LLVMBuildFPExt(ctx
->builder
, result
, ctx
->ac
.f32
, "");
1462 if (ctx
->options
->chip_class
>= VI
)
1463 result
= LLVMBuildSelect(ctx
->builder
, cond
, ctx
->ac
.f32_0
, result
, "");
1466 /* 0x38800000 is smallest half float value (2^-14) in 32-bit float,
1467 * so compare the result and flush to 0 if it's smaller.
1469 LLVMValueRef temp
, cond2
;
1470 temp
= emit_intrin_1f_param(&ctx
->ac
, "llvm.fabs",
1471 ctx
->ac
.f32
, result
);
1472 cond
= LLVMBuildFCmp(ctx
->builder
, LLVMRealUGT
,
1473 LLVMBuildBitCast(ctx
->builder
, LLVMConstInt(ctx
->ac
.i32
, 0x38800000, false), ctx
->ac
.f32
, ""),
1475 cond2
= LLVMBuildFCmp(ctx
->builder
, LLVMRealUNE
,
1476 temp
, ctx
->ac
.f32_0
, "");
1477 cond
= LLVMBuildAnd(ctx
->builder
, cond
, cond2
, "");
1478 result
= LLVMBuildSelect(ctx
->builder
, cond
, ctx
->ac
.f32_0
, result
, "");
1483 static LLVMValueRef
emit_umul_high(struct ac_llvm_context
*ctx
,
1484 LLVMValueRef src0
, LLVMValueRef src1
)
1486 LLVMValueRef dst64
, result
;
1487 src0
= LLVMBuildZExt(ctx
->builder
, src0
, ctx
->i64
, "");
1488 src1
= LLVMBuildZExt(ctx
->builder
, src1
, ctx
->i64
, "");
1490 dst64
= LLVMBuildMul(ctx
->builder
, src0
, src1
, "");
1491 dst64
= LLVMBuildLShr(ctx
->builder
, dst64
, LLVMConstInt(ctx
->i64
, 32, false), "");
1492 result
= LLVMBuildTrunc(ctx
->builder
, dst64
, ctx
->i32
, "");
1496 static LLVMValueRef
emit_imul_high(struct ac_llvm_context
*ctx
,
1497 LLVMValueRef src0
, LLVMValueRef src1
)
1499 LLVMValueRef dst64
, result
;
1500 src0
= LLVMBuildSExt(ctx
->builder
, src0
, ctx
->i64
, "");
1501 src1
= LLVMBuildSExt(ctx
->builder
, src1
, ctx
->i64
, "");
1503 dst64
= LLVMBuildMul(ctx
->builder
, src0
, src1
, "");
1504 dst64
= LLVMBuildAShr(ctx
->builder
, dst64
, LLVMConstInt(ctx
->i64
, 32, false), "");
1505 result
= LLVMBuildTrunc(ctx
->builder
, dst64
, ctx
->i32
, "");
1509 static LLVMValueRef
emit_bitfield_extract(struct ac_llvm_context
*ctx
,
1511 const LLVMValueRef srcs
[3])
1513 LLVMValueRef result
;
1514 LLVMValueRef icond
= LLVMBuildICmp(ctx
->builder
, LLVMIntEQ
, srcs
[2], LLVMConstInt(ctx
->i32
, 32, false), "");
1516 result
= ac_build_bfe(ctx
, srcs
[0], srcs
[1], srcs
[2], is_signed
);
1517 result
= LLVMBuildSelect(ctx
->builder
, icond
, srcs
[0], result
, "");
1521 static LLVMValueRef
emit_bitfield_insert(struct ac_llvm_context
*ctx
,
1522 LLVMValueRef src0
, LLVMValueRef src1
,
1523 LLVMValueRef src2
, LLVMValueRef src3
)
1525 LLVMValueRef bfi_args
[3], result
;
1527 bfi_args
[0] = LLVMBuildShl(ctx
->builder
,
1528 LLVMBuildSub(ctx
->builder
,
1529 LLVMBuildShl(ctx
->builder
,
1534 bfi_args
[1] = LLVMBuildShl(ctx
->builder
, src1
, src2
, "");
1537 LLVMValueRef icond
= LLVMBuildICmp(ctx
->builder
, LLVMIntEQ
, src3
, LLVMConstInt(ctx
->i32
, 32, false), "");
1540 * (arg0 & arg1) | (~arg0 & arg2) = arg2 ^ (arg0 & (arg1 ^ arg2)
1541 * Use the right-hand side, which the LLVM backend can convert to V_BFI.
1543 result
= LLVMBuildXor(ctx
->builder
, bfi_args
[2],
1544 LLVMBuildAnd(ctx
->builder
, bfi_args
[0],
1545 LLVMBuildXor(ctx
->builder
, bfi_args
[1], bfi_args
[2], ""), ""), "");
1547 result
= LLVMBuildSelect(ctx
->builder
, icond
, src1
, result
, "");
1551 static LLVMValueRef
emit_pack_half_2x16(struct ac_llvm_context
*ctx
,
1554 LLVMValueRef comp
[2];
1556 src0
= ac_to_float(ctx
, src0
);
1557 comp
[0] = LLVMBuildExtractElement(ctx
->builder
, src0
, ctx
->i32_0
, "");
1558 comp
[1] = LLVMBuildExtractElement(ctx
->builder
, src0
, ctx
->i32_1
, "");
1560 return ac_build_cvt_pkrtz_f16(ctx
, comp
);
1563 static LLVMValueRef
emit_unpack_half_2x16(struct ac_llvm_context
*ctx
,
1566 LLVMValueRef const16
= LLVMConstInt(ctx
->i32
, 16, false);
1567 LLVMValueRef temps
[2], result
, val
;
1570 for (i
= 0; i
< 2; i
++) {
1571 val
= i
== 1 ? LLVMBuildLShr(ctx
->builder
, src0
, const16
, "") : src0
;
1572 val
= LLVMBuildTrunc(ctx
->builder
, val
, ctx
->i16
, "");
1573 val
= LLVMBuildBitCast(ctx
->builder
, val
, ctx
->f16
, "");
1574 temps
[i
] = LLVMBuildFPExt(ctx
->builder
, val
, ctx
->f32
, "");
1577 result
= LLVMBuildInsertElement(ctx
->builder
, LLVMGetUndef(ctx
->v2f32
), temps
[0],
1579 result
= LLVMBuildInsertElement(ctx
->builder
, result
, temps
[1],
1584 static LLVMValueRef
emit_ddxy(struct ac_nir_context
*ctx
,
1590 LLVMValueRef result
;
1592 if (op
== nir_op_fddx_fine
|| op
== nir_op_fddx
)
1593 mask
= AC_TID_MASK_LEFT
;
1594 else if (op
== nir_op_fddy_fine
|| op
== nir_op_fddy
)
1595 mask
= AC_TID_MASK_TOP
;
1597 mask
= AC_TID_MASK_TOP_LEFT
;
1599 /* for DDX we want to next X pixel, DDY next Y pixel. */
1600 if (op
== nir_op_fddx_fine
||
1601 op
== nir_op_fddx_coarse
||
1607 result
= ac_build_ddxy(&ctx
->ac
, mask
, idx
, src0
);
1612 * this takes an I,J coordinate pair,
1613 * and works out the X and Y derivatives.
1614 * it returns DDX(I), DDX(J), DDY(I), DDY(J).
1616 static LLVMValueRef
emit_ddxy_interp(
1617 struct ac_nir_context
*ctx
,
1618 LLVMValueRef interp_ij
)
1620 LLVMValueRef result
[4], a
;
1623 for (i
= 0; i
< 2; i
++) {
1624 a
= LLVMBuildExtractElement(ctx
->ac
.builder
, interp_ij
,
1625 LLVMConstInt(ctx
->ac
.i32
, i
, false), "");
1626 result
[i
] = emit_ddxy(ctx
, nir_op_fddx
, a
);
1627 result
[2+i
] = emit_ddxy(ctx
, nir_op_fddy
, a
);
1629 return ac_build_gather_values(&ctx
->ac
, result
, 4);
1632 static void visit_alu(struct ac_nir_context
*ctx
, const nir_alu_instr
*instr
)
1634 LLVMValueRef src
[4], result
= NULL
;
1635 unsigned num_components
= instr
->dest
.dest
.ssa
.num_components
;
1636 unsigned src_components
;
1637 LLVMTypeRef def_type
= get_def_type(ctx
, &instr
->dest
.dest
.ssa
);
1639 assert(nir_op_infos
[instr
->op
].num_inputs
<= ARRAY_SIZE(src
));
1640 switch (instr
->op
) {
1646 case nir_op_pack_half_2x16
:
1649 case nir_op_unpack_half_2x16
:
1653 src_components
= num_components
;
1656 for (unsigned i
= 0; i
< nir_op_infos
[instr
->op
].num_inputs
; i
++)
1657 src
[i
] = get_alu_src(ctx
, instr
->src
[i
], src_components
);
1659 switch (instr
->op
) {
1665 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1666 result
= LLVMBuildFNeg(ctx
->ac
.builder
, src
[0], "");
1669 result
= LLVMBuildNeg(ctx
->ac
.builder
, src
[0], "");
1672 result
= LLVMBuildNot(ctx
->ac
.builder
, src
[0], "");
1675 result
= LLVMBuildAdd(ctx
->ac
.builder
, src
[0], src
[1], "");
1678 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1679 src
[1] = ac_to_float(&ctx
->ac
, src
[1]);
1680 result
= LLVMBuildFAdd(ctx
->ac
.builder
, src
[0], src
[1], "");
1683 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1684 src
[1] = ac_to_float(&ctx
->ac
, src
[1]);
1685 result
= LLVMBuildFSub(ctx
->ac
.builder
, src
[0], src
[1], "");
1688 result
= LLVMBuildSub(ctx
->ac
.builder
, src
[0], src
[1], "");
1691 result
= LLVMBuildMul(ctx
->ac
.builder
, src
[0], src
[1], "");
1694 result
= LLVMBuildSRem(ctx
->ac
.builder
, src
[0], src
[1], "");
1697 result
= LLVMBuildURem(ctx
->ac
.builder
, src
[0], src
[1], "");
1700 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1701 src
[1] = ac_to_float(&ctx
->ac
, src
[1]);
1702 result
= ac_build_fdiv(&ctx
->ac
, src
[0], src
[1]);
1703 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.floor",
1704 ac_to_float_type(&ctx
->ac
, def_type
), result
);
1705 result
= LLVMBuildFMul(ctx
->ac
.builder
, src
[1] , result
, "");
1706 result
= LLVMBuildFSub(ctx
->ac
.builder
, src
[0], result
, "");
1709 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1710 src
[1] = ac_to_float(&ctx
->ac
, src
[1]);
1711 result
= LLVMBuildFRem(ctx
->ac
.builder
, src
[0], src
[1], "");
1714 result
= LLVMBuildSRem(ctx
->ac
.builder
, src
[0], src
[1], "");
1717 result
= LLVMBuildSDiv(ctx
->ac
.builder
, src
[0], src
[1], "");
1720 result
= LLVMBuildUDiv(ctx
->ac
.builder
, src
[0], src
[1], "");
1723 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1724 src
[1] = ac_to_float(&ctx
->ac
, src
[1]);
1725 result
= LLVMBuildFMul(ctx
->ac
.builder
, src
[0], src
[1], "");
1728 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1729 src
[1] = ac_to_float(&ctx
->ac
, src
[1]);
1730 result
= ac_build_fdiv(&ctx
->ac
, src
[0], src
[1]);
1733 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1734 result
= ac_build_fdiv(&ctx
->ac
, ctx
->ac
.f32_1
, src
[0]);
1737 result
= LLVMBuildAnd(ctx
->ac
.builder
, src
[0], src
[1], "");
1740 result
= LLVMBuildOr(ctx
->ac
.builder
, src
[0], src
[1], "");
1743 result
= LLVMBuildXor(ctx
->ac
.builder
, src
[0], src
[1], "");
1746 result
= LLVMBuildShl(ctx
->ac
.builder
, src
[0],
1747 LLVMBuildZExt(ctx
->ac
.builder
, src
[1],
1748 LLVMTypeOf(src
[0]), ""),
1752 result
= LLVMBuildAShr(ctx
->ac
.builder
, src
[0],
1753 LLVMBuildZExt(ctx
->ac
.builder
, src
[1],
1754 LLVMTypeOf(src
[0]), ""),
1758 result
= LLVMBuildLShr(ctx
->ac
.builder
, src
[0],
1759 LLVMBuildZExt(ctx
->ac
.builder
, src
[1],
1760 LLVMTypeOf(src
[0]), ""),
1764 result
= emit_int_cmp(&ctx
->ac
, LLVMIntSLT
, src
[0], src
[1]);
1767 result
= emit_int_cmp(&ctx
->ac
, LLVMIntNE
, src
[0], src
[1]);
1770 result
= emit_int_cmp(&ctx
->ac
, LLVMIntEQ
, src
[0], src
[1]);
1773 result
= emit_int_cmp(&ctx
->ac
, LLVMIntSGE
, src
[0], src
[1]);
1776 result
= emit_int_cmp(&ctx
->ac
, LLVMIntULT
, src
[0], src
[1]);
1779 result
= emit_int_cmp(&ctx
->ac
, LLVMIntUGE
, src
[0], src
[1]);
1782 result
= emit_float_cmp(&ctx
->ac
, LLVMRealUEQ
, src
[0], src
[1]);
1785 result
= emit_float_cmp(&ctx
->ac
, LLVMRealUNE
, src
[0], src
[1]);
1788 result
= emit_float_cmp(&ctx
->ac
, LLVMRealULT
, src
[0], src
[1]);
1791 result
= emit_float_cmp(&ctx
->ac
, LLVMRealUGE
, src
[0], src
[1]);
1794 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.fabs",
1795 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1798 result
= emit_iabs(&ctx
->ac
, src
[0]);
1801 result
= emit_minmax_int(&ctx
->ac
, LLVMIntSGT
, src
[0], src
[1]);
1804 result
= emit_minmax_int(&ctx
->ac
, LLVMIntSLT
, src
[0], src
[1]);
1807 result
= emit_minmax_int(&ctx
->ac
, LLVMIntUGT
, src
[0], src
[1]);
1810 result
= emit_minmax_int(&ctx
->ac
, LLVMIntULT
, src
[0], src
[1]);
1813 result
= emit_isign(&ctx
->ac
, src
[0]);
1816 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1817 result
= emit_fsign(&ctx
->ac
, src
[0]);
1820 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.floor",
1821 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1824 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.trunc",
1825 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1828 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.ceil",
1829 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1831 case nir_op_fround_even
:
1832 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.rint",
1833 ac_to_float_type(&ctx
->ac
, def_type
),src
[0]);
1836 result
= emit_ffract(&ctx
->ac
, src
[0]);
1839 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.sin",
1840 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1843 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.cos",
1844 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1847 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.sqrt",
1848 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1851 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.exp2",
1852 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1855 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.log2",
1856 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1859 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.sqrt",
1860 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1861 result
= ac_build_fdiv(&ctx
->ac
, ctx
->ac
.f32_1
, result
);
1864 result
= emit_intrin_2f_param(&ctx
->ac
, "llvm.pow",
1865 ac_to_float_type(&ctx
->ac
, def_type
), src
[0], src
[1]);
1868 result
= emit_intrin_2f_param(&ctx
->ac
, "llvm.maxnum",
1869 ac_to_float_type(&ctx
->ac
, def_type
), src
[0], src
[1]);
1870 if (instr
->dest
.dest
.ssa
.bit_size
== 32)
1871 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.canonicalize",
1872 ac_to_float_type(&ctx
->ac
, def_type
),
1876 result
= emit_intrin_2f_param(&ctx
->ac
, "llvm.minnum",
1877 ac_to_float_type(&ctx
->ac
, def_type
), src
[0], src
[1]);
1878 if (instr
->dest
.dest
.ssa
.bit_size
== 32)
1879 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.canonicalize",
1880 ac_to_float_type(&ctx
->ac
, def_type
),
1884 result
= emit_intrin_3f_param(&ctx
->ac
, "llvm.fmuladd",
1885 ac_to_float_type(&ctx
->ac
, def_type
), src
[0], src
[1], src
[2]);
1887 case nir_op_ibitfield_extract
:
1888 result
= emit_bitfield_extract(&ctx
->ac
, true, src
);
1890 case nir_op_ubitfield_extract
:
1891 result
= emit_bitfield_extract(&ctx
->ac
, false, src
);
1893 case nir_op_bitfield_insert
:
1894 result
= emit_bitfield_insert(&ctx
->ac
, src
[0], src
[1], src
[2], src
[3]);
1896 case nir_op_bitfield_reverse
:
1897 result
= ac_build_intrinsic(&ctx
->ac
, "llvm.bitreverse.i32", ctx
->ac
.i32
, src
, 1, AC_FUNC_ATTR_READNONE
);
1899 case nir_op_bit_count
:
1900 result
= ac_build_intrinsic(&ctx
->ac
, "llvm.ctpop.i32", ctx
->ac
.i32
, src
, 1, AC_FUNC_ATTR_READNONE
);
1905 for (unsigned i
= 0; i
< nir_op_infos
[instr
->op
].num_inputs
; i
++)
1906 src
[i
] = ac_to_integer(&ctx
->ac
, src
[i
]);
1907 result
= ac_build_gather_values(&ctx
->ac
, src
, num_components
);
1911 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1912 result
= LLVMBuildFPToSI(ctx
->ac
.builder
, src
[0], def_type
, "");
1916 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1917 result
= LLVMBuildFPToUI(ctx
->ac
.builder
, src
[0], def_type
, "");
1921 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1922 result
= LLVMBuildSIToFP(ctx
->ac
.builder
, src
[0], ac_to_float_type(&ctx
->ac
, def_type
), "");
1926 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1927 result
= LLVMBuildUIToFP(ctx
->ac
.builder
, src
[0], ac_to_float_type(&ctx
->ac
, def_type
), "");
1930 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1931 result
= LLVMBuildFPExt(ctx
->ac
.builder
, src
[0], ac_to_float_type(&ctx
->ac
, def_type
), "");
1934 result
= LLVMBuildFPTrunc(ctx
->ac
.builder
, src
[0], ac_to_float_type(&ctx
->ac
, def_type
), "");
1938 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1939 if (get_elem_bits(&ctx
->ac
, LLVMTypeOf(src
[0])) < get_elem_bits(&ctx
->ac
, def_type
))
1940 result
= LLVMBuildZExt(ctx
->ac
.builder
, src
[0], def_type
, "");
1942 result
= LLVMBuildTrunc(ctx
->ac
.builder
, src
[0], def_type
, "");
1946 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1947 if (get_elem_bits(&ctx
->ac
, LLVMTypeOf(src
[0])) < get_elem_bits(&ctx
->ac
, def_type
))
1948 result
= LLVMBuildSExt(ctx
->ac
.builder
, src
[0], def_type
, "");
1950 result
= LLVMBuildTrunc(ctx
->ac
.builder
, src
[0], def_type
, "");
1953 result
= emit_bcsel(&ctx
->ac
, src
[0], src
[1], src
[2]);
1955 case nir_op_find_lsb
:
1956 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1957 result
= ac_find_lsb(&ctx
->ac
, ctx
->ac
.i32
, src
[0]);
1959 case nir_op_ufind_msb
:
1960 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1961 result
= ac_build_umsb(&ctx
->ac
, src
[0], ctx
->ac
.i32
);
1963 case nir_op_ifind_msb
:
1964 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1965 result
= ac_build_imsb(&ctx
->ac
, src
[0], ctx
->ac
.i32
);
1967 case nir_op_uadd_carry
:
1968 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1969 src
[1] = ac_to_integer(&ctx
->ac
, src
[1]);
1970 result
= emit_uint_carry(&ctx
->ac
, "llvm.uadd.with.overflow.i32", src
[0], src
[1]);
1972 case nir_op_usub_borrow
:
1973 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1974 src
[1] = ac_to_integer(&ctx
->ac
, src
[1]);
1975 result
= emit_uint_carry(&ctx
->ac
, "llvm.usub.with.overflow.i32", src
[0], src
[1]);
1978 result
= emit_b2f(&ctx
->ac
, src
[0]);
1981 result
= emit_f2b(&ctx
->ac
, src
[0]);
1984 result
= emit_b2i(&ctx
->ac
, src
[0]);
1987 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1988 result
= emit_i2b(&ctx
->ac
, src
[0]);
1990 case nir_op_fquantize2f16
:
1991 result
= emit_f2f16(ctx
->nctx
, src
[0]);
1993 case nir_op_umul_high
:
1994 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1995 src
[1] = ac_to_integer(&ctx
->ac
, src
[1]);
1996 result
= emit_umul_high(&ctx
->ac
, src
[0], src
[1]);
1998 case nir_op_imul_high
:
1999 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
2000 src
[1] = ac_to_integer(&ctx
->ac
, src
[1]);
2001 result
= emit_imul_high(&ctx
->ac
, src
[0], src
[1]);
2003 case nir_op_pack_half_2x16
:
2004 result
= emit_pack_half_2x16(&ctx
->ac
, src
[0]);
2006 case nir_op_unpack_half_2x16
:
2007 result
= emit_unpack_half_2x16(&ctx
->ac
, src
[0]);
2011 case nir_op_fddx_fine
:
2012 case nir_op_fddy_fine
:
2013 case nir_op_fddx_coarse
:
2014 case nir_op_fddy_coarse
:
2015 result
= emit_ddxy(ctx
, instr
->op
, src
[0]);
2018 case nir_op_unpack_64_2x32_split_x
: {
2019 assert(instr
->src
[0].src
.ssa
->num_components
== 1);
2020 LLVMValueRef tmp
= LLVMBuildBitCast(ctx
->ac
.builder
, src
[0],
2023 result
= LLVMBuildExtractElement(ctx
->ac
.builder
, tmp
,
2028 case nir_op_unpack_64_2x32_split_y
: {
2029 assert(instr
->src
[0].src
.ssa
->num_components
== 1);
2030 LLVMValueRef tmp
= LLVMBuildBitCast(ctx
->ac
.builder
, src
[0],
2033 result
= LLVMBuildExtractElement(ctx
->ac
.builder
, tmp
,
2038 case nir_op_pack_64_2x32_split
: {
2039 LLVMValueRef tmp
= LLVMGetUndef(ctx
->ac
.v2i32
);
2040 tmp
= LLVMBuildInsertElement(ctx
->ac
.builder
, tmp
,
2041 src
[0], ctx
->ac
.i32_0
, "");
2042 tmp
= LLVMBuildInsertElement(ctx
->ac
.builder
, tmp
,
2043 src
[1], ctx
->ac
.i32_1
, "");
2044 result
= LLVMBuildBitCast(ctx
->ac
.builder
, tmp
, ctx
->ac
.i64
, "");
2049 fprintf(stderr
, "Unknown NIR alu instr: ");
2050 nir_print_instr(&instr
->instr
, stderr
);
2051 fprintf(stderr
, "\n");
2056 assert(instr
->dest
.dest
.is_ssa
);
2057 result
= ac_to_integer(&ctx
->ac
, result
);
2058 _mesa_hash_table_insert(ctx
->defs
, &instr
->dest
.dest
.ssa
,
2063 static void visit_load_const(struct ac_nir_context
*ctx
,
2064 const nir_load_const_instr
*instr
)
2066 LLVMValueRef values
[4], value
= NULL
;
2067 LLVMTypeRef element_type
=
2068 LLVMIntTypeInContext(ctx
->ac
.context
, instr
->def
.bit_size
);
2070 for (unsigned i
= 0; i
< instr
->def
.num_components
; ++i
) {
2071 switch (instr
->def
.bit_size
) {
2073 values
[i
] = LLVMConstInt(element_type
,
2074 instr
->value
.u32
[i
], false);
2077 values
[i
] = LLVMConstInt(element_type
,
2078 instr
->value
.u64
[i
], false);
2082 "unsupported nir load_const bit_size: %d\n",
2083 instr
->def
.bit_size
);
2087 if (instr
->def
.num_components
> 1) {
2088 value
= LLVMConstVector(values
, instr
->def
.num_components
);
2092 _mesa_hash_table_insert(ctx
->defs
, &instr
->def
, value
);
2095 static LLVMValueRef
cast_ptr(struct nir_to_llvm_context
*ctx
, LLVMValueRef ptr
,
2098 int addr_space
= LLVMGetPointerAddressSpace(LLVMTypeOf(ptr
));
2099 return LLVMBuildBitCast(ctx
->builder
, ptr
,
2100 LLVMPointerType(type
, addr_space
), "");
2104 get_buffer_size(struct ac_nir_context
*ctx
, LLVMValueRef descriptor
, bool in_elements
)
2107 LLVMBuildExtractElement(ctx
->ac
.builder
, descriptor
,
2108 LLVMConstInt(ctx
->ac
.i32
, 2, false), "");
2111 if (ctx
->ac
.chip_class
== VI
&& in_elements
) {
2112 /* On VI, the descriptor contains the size in bytes,
2113 * but TXQ must return the size in elements.
2114 * The stride is always non-zero for resources using TXQ.
2116 LLVMValueRef stride
=
2117 LLVMBuildExtractElement(ctx
->ac
.builder
, descriptor
,
2119 stride
= LLVMBuildLShr(ctx
->ac
.builder
, stride
,
2120 LLVMConstInt(ctx
->ac
.i32
, 16, false), "");
2121 stride
= LLVMBuildAnd(ctx
->ac
.builder
, stride
,
2122 LLVMConstInt(ctx
->ac
.i32
, 0x3fff, false), "");
2124 size
= LLVMBuildUDiv(ctx
->ac
.builder
, size
, stride
, "");
2130 * Given the i32 or vNi32 \p type, generate the textual name (e.g. for use with
2133 static void build_int_type_name(
2135 char *buf
, unsigned bufsize
)
2137 assert(bufsize
>= 6);
2139 if (LLVMGetTypeKind(type
) == LLVMVectorTypeKind
)
2140 snprintf(buf
, bufsize
, "v%ui32",
2141 LLVMGetVectorSize(type
));
2146 static LLVMValueRef
radv_lower_gather4_integer(struct ac_llvm_context
*ctx
,
2147 struct ac_image_args
*args
,
2148 const nir_tex_instr
*instr
)
2150 enum glsl_base_type stype
= glsl_get_sampler_result_type(instr
->texture
->var
->type
);
2151 LLVMValueRef coord
= args
->addr
;
2152 LLVMValueRef half_texel
[2];
2153 LLVMValueRef compare_cube_wa
= NULL
;
2154 LLVMValueRef result
;
2156 unsigned coord_vgpr_index
= (unsigned)args
->offset
+ (unsigned)args
->compare
;
2160 struct ac_image_args txq_args
= { 0 };
2162 txq_args
.da
= instr
->is_array
|| instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
;
2163 txq_args
.opcode
= ac_image_get_resinfo
;
2164 txq_args
.dmask
= 0xf;
2165 txq_args
.addr
= ctx
->i32_0
;
2166 txq_args
.resource
= args
->resource
;
2167 LLVMValueRef size
= ac_build_image_opcode(ctx
, &txq_args
);
2169 for (c
= 0; c
< 2; c
++) {
2170 half_texel
[c
] = LLVMBuildExtractElement(ctx
->builder
, size
,
2171 LLVMConstInt(ctx
->i32
, c
, false), "");
2172 half_texel
[c
] = LLVMBuildUIToFP(ctx
->builder
, half_texel
[c
], ctx
->f32
, "");
2173 half_texel
[c
] = ac_build_fdiv(ctx
, ctx
->f32_1
, half_texel
[c
]);
2174 half_texel
[c
] = LLVMBuildFMul(ctx
->builder
, half_texel
[c
],
2175 LLVMConstReal(ctx
->f32
, -0.5), "");
2179 LLVMValueRef orig_coords
= args
->addr
;
2181 for (c
= 0; c
< 2; c
++) {
2183 LLVMValueRef index
= LLVMConstInt(ctx
->i32
, coord_vgpr_index
+ c
, 0);
2184 tmp
= LLVMBuildExtractElement(ctx
->builder
, coord
, index
, "");
2185 tmp
= LLVMBuildBitCast(ctx
->builder
, tmp
, ctx
->f32
, "");
2186 tmp
= LLVMBuildFAdd(ctx
->builder
, tmp
, half_texel
[c
], "");
2187 tmp
= LLVMBuildBitCast(ctx
->builder
, tmp
, ctx
->i32
, "");
2188 coord
= LLVMBuildInsertElement(ctx
->builder
, coord
, tmp
, index
, "");
2193 * Apparantly cube has issue with integer types that the workaround doesn't solve,
2194 * so this tests if the format is 8_8_8_8 and an integer type do an alternate
2195 * workaround by sampling using a scaled type and converting.
2196 * This is taken from amdgpu-pro shaders.
2198 /* NOTE this produces some ugly code compared to amdgpu-pro,
2199 * LLVM ends up dumping SGPRs into VGPRs to deal with the compare/select,
2200 * and then reads them back. -pro generates two selects,
2201 * one s_cmp for the descriptor rewriting
2202 * one v_cmp for the coordinate and result changes.
2204 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
) {
2205 LLVMValueRef tmp
, tmp2
;
2207 /* workaround 8/8/8/8 uint/sint cube gather bug */
2208 /* first detect it then change to a scaled read and f2i */
2209 tmp
= LLVMBuildExtractElement(ctx
->builder
, args
->resource
, ctx
->i32_1
, "");
2212 /* extract the DATA_FORMAT */
2213 tmp
= ac_build_bfe(ctx
, tmp
, LLVMConstInt(ctx
->i32
, 20, false),
2214 LLVMConstInt(ctx
->i32
, 6, false), false);
2216 /* is the DATA_FORMAT == 8_8_8_8 */
2217 compare_cube_wa
= LLVMBuildICmp(ctx
->builder
, LLVMIntEQ
, tmp
, LLVMConstInt(ctx
->i32
, V_008F14_IMG_DATA_FORMAT_8_8_8_8
, false), "");
2219 if (stype
== GLSL_TYPE_UINT
)
2220 /* Create a NUM FORMAT - 0x2 or 0x4 - USCALED or UINT */
2221 tmp
= LLVMBuildSelect(ctx
->builder
, compare_cube_wa
, LLVMConstInt(ctx
->i32
, 0x8000000, false),
2222 LLVMConstInt(ctx
->i32
, 0x10000000, false), "");
2224 /* Create a NUM FORMAT - 0x3 or 0x5 - SSCALED or SINT */
2225 tmp
= LLVMBuildSelect(ctx
->builder
, compare_cube_wa
, LLVMConstInt(ctx
->i32
, 0xc000000, false),
2226 LLVMConstInt(ctx
->i32
, 0x14000000, false), "");
2228 /* replace the NUM FORMAT in the descriptor */
2229 tmp2
= LLVMBuildAnd(ctx
->builder
, tmp2
, LLVMConstInt(ctx
->i32
, C_008F14_NUM_FORMAT_GFX6
, false), "");
2230 tmp2
= LLVMBuildOr(ctx
->builder
, tmp2
, tmp
, "");
2232 args
->resource
= LLVMBuildInsertElement(ctx
->builder
, args
->resource
, tmp2
, ctx
->i32_1
, "");
2234 /* don't modify the coordinates for this case */
2235 coord
= LLVMBuildSelect(ctx
->builder
, compare_cube_wa
, orig_coords
, coord
, "");
2238 result
= ac_build_image_opcode(ctx
, args
);
2240 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
) {
2241 LLVMValueRef tmp
, tmp2
;
2243 /* if the cube workaround is in place, f2i the result. */
2244 for (c
= 0; c
< 4; c
++) {
2245 tmp
= LLVMBuildExtractElement(ctx
->builder
, result
, LLVMConstInt(ctx
->i32
, c
, false), "");
2246 if (stype
== GLSL_TYPE_UINT
)
2247 tmp2
= LLVMBuildFPToUI(ctx
->builder
, tmp
, ctx
->i32
, "");
2249 tmp2
= LLVMBuildFPToSI(ctx
->builder
, tmp
, ctx
->i32
, "");
2250 tmp
= LLVMBuildBitCast(ctx
->builder
, tmp
, ctx
->i32
, "");
2251 tmp2
= LLVMBuildBitCast(ctx
->builder
, tmp2
, ctx
->i32
, "");
2252 tmp
= LLVMBuildSelect(ctx
->builder
, compare_cube_wa
, tmp2
, tmp
, "");
2253 tmp
= LLVMBuildBitCast(ctx
->builder
, tmp
, ctx
->f32
, "");
2254 result
= LLVMBuildInsertElement(ctx
->builder
, result
, tmp
, LLVMConstInt(ctx
->i32
, c
, false), "");
2260 static LLVMValueRef
build_tex_intrinsic(struct ac_nir_context
*ctx
,
2261 const nir_tex_instr
*instr
,
2263 struct ac_image_args
*args
)
2265 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_BUF
) {
2266 return ac_build_buffer_load_format(&ctx
->ac
,
2273 args
->opcode
= ac_image_sample
;
2274 args
->compare
= instr
->is_shadow
;
2276 switch (instr
->op
) {
2278 case nir_texop_txf_ms
:
2279 case nir_texop_samples_identical
:
2280 args
->opcode
= instr
->sampler_dim
== GLSL_SAMPLER_DIM_MS
? ac_image_load
: ac_image_load_mip
;
2281 args
->compare
= false;
2282 args
->offset
= false;
2289 args
->level_zero
= true;
2294 case nir_texop_query_levels
:
2295 args
->opcode
= ac_image_get_resinfo
;
2298 if (ctx
->stage
!= MESA_SHADER_FRAGMENT
)
2299 args
->level_zero
= true;
2305 args
->opcode
= ac_image_gather4
;
2306 args
->level_zero
= true;
2309 args
->opcode
= ac_image_get_lod
;
2310 args
->compare
= false;
2311 args
->offset
= false;
2317 if (instr
->op
== nir_texop_tg4
&& ctx
->ac
.chip_class
<= VI
) {
2318 enum glsl_base_type stype
= glsl_get_sampler_result_type(instr
->texture
->var
->type
);
2319 if (stype
== GLSL_TYPE_UINT
|| stype
== GLSL_TYPE_INT
) {
2320 return radv_lower_gather4_integer(&ctx
->ac
, args
, instr
);
2323 return ac_build_image_opcode(&ctx
->ac
, args
);
2326 static LLVMValueRef
visit_vulkan_resource_index(struct nir_to_llvm_context
*ctx
,
2327 nir_intrinsic_instr
*instr
)
2329 LLVMValueRef index
= get_src(ctx
->nir
, instr
->src
[0]);
2330 unsigned desc_set
= nir_intrinsic_desc_set(instr
);
2331 unsigned binding
= nir_intrinsic_binding(instr
);
2332 LLVMValueRef desc_ptr
= ctx
->descriptor_sets
[desc_set
];
2333 struct radv_pipeline_layout
*pipeline_layout
= ctx
->options
->layout
;
2334 struct radv_descriptor_set_layout
*layout
= pipeline_layout
->set
[desc_set
].layout
;
2335 unsigned base_offset
= layout
->binding
[binding
].offset
;
2336 LLVMValueRef offset
, stride
;
2338 if (layout
->binding
[binding
].type
== VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC
||
2339 layout
->binding
[binding
].type
== VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC
) {
2340 unsigned idx
= pipeline_layout
->set
[desc_set
].dynamic_offset_start
+
2341 layout
->binding
[binding
].dynamic_offset_offset
;
2342 desc_ptr
= ctx
->push_constants
;
2343 base_offset
= pipeline_layout
->push_constant_size
+ 16 * idx
;
2344 stride
= LLVMConstInt(ctx
->ac
.i32
, 16, false);
2346 stride
= LLVMConstInt(ctx
->ac
.i32
, layout
->binding
[binding
].size
, false);
2348 offset
= LLVMConstInt(ctx
->ac
.i32
, base_offset
, false);
2349 index
= LLVMBuildMul(ctx
->builder
, index
, stride
, "");
2350 offset
= LLVMBuildAdd(ctx
->builder
, offset
, index
, "");
2352 desc_ptr
= ac_build_gep0(&ctx
->ac
, desc_ptr
, offset
);
2353 desc_ptr
= cast_ptr(ctx
, desc_ptr
, ctx
->ac
.v4i32
);
2354 LLVMSetMetadata(desc_ptr
, ctx
->ac
.uniform_md_kind
, ctx
->ac
.empty_md
);
2359 static LLVMValueRef
visit_vulkan_resource_reindex(struct nir_to_llvm_context
*ctx
,
2360 nir_intrinsic_instr
*instr
)
2362 LLVMValueRef ptr
= get_src(ctx
->nir
, instr
->src
[0]);
2363 LLVMValueRef index
= get_src(ctx
->nir
, instr
->src
[1]);
2365 LLVMValueRef result
= LLVMBuildGEP(ctx
->builder
, ptr
, &index
, 1, "");
2366 LLVMSetMetadata(result
, ctx
->ac
.uniform_md_kind
, ctx
->ac
.empty_md
);
2370 static LLVMValueRef
visit_load_push_constant(struct nir_to_llvm_context
*ctx
,
2371 nir_intrinsic_instr
*instr
)
2373 LLVMValueRef ptr
, addr
;
2375 addr
= LLVMConstInt(ctx
->ac
.i32
, nir_intrinsic_base(instr
), 0);
2376 addr
= LLVMBuildAdd(ctx
->builder
, addr
, get_src(ctx
->nir
, instr
->src
[0]), "");
2378 ptr
= ac_build_gep0(&ctx
->ac
, ctx
->push_constants
, addr
);
2379 ptr
= cast_ptr(ctx
, ptr
, get_def_type(ctx
->nir
, &instr
->dest
.ssa
));
2381 return LLVMBuildLoad(ctx
->builder
, ptr
, "");
2384 static LLVMValueRef
visit_get_buffer_size(struct ac_nir_context
*ctx
,
2385 const nir_intrinsic_instr
*instr
)
2387 LLVMValueRef ptr
= get_src(ctx
, instr
->src
[0]);
2389 return get_buffer_size(ctx
, LLVMBuildLoad(ctx
->ac
.builder
, ptr
, ""), false);
2391 static void visit_store_ssbo(struct ac_nir_context
*ctx
,
2392 nir_intrinsic_instr
*instr
)
2394 const char *store_name
;
2395 LLVMValueRef src_data
= get_src(ctx
, instr
->src
[0]);
2396 LLVMTypeRef data_type
= ctx
->ac
.f32
;
2397 int elem_size_mult
= get_elem_bits(&ctx
->ac
, LLVMTypeOf(src_data
)) / 32;
2398 int components_32bit
= elem_size_mult
* instr
->num_components
;
2399 unsigned writemask
= nir_intrinsic_write_mask(instr
);
2400 LLVMValueRef base_data
, base_offset
;
2401 LLVMValueRef params
[6];
2403 params
[1] = ctx
->abi
->load_ssbo(ctx
->abi
,
2404 get_src(ctx
, instr
->src
[1]), true);
2405 params
[2] = ctx
->ac
.i32_0
; /* vindex */
2406 params
[4] = ctx
->ac
.i1false
; /* glc */
2407 params
[5] = ctx
->ac
.i1false
; /* slc */
2409 if (components_32bit
> 1)
2410 data_type
= LLVMVectorType(ctx
->ac
.f32
, components_32bit
);
2412 base_data
= ac_to_float(&ctx
->ac
, src_data
);
2413 base_data
= trim_vector(&ctx
->ac
, base_data
, instr
->num_components
);
2414 base_data
= LLVMBuildBitCast(ctx
->ac
.builder
, base_data
,
2416 base_offset
= get_src(ctx
, instr
->src
[2]); /* voffset */
2420 LLVMValueRef offset
;
2422 u_bit_scan_consecutive_range(&writemask
, &start
, &count
);
2424 /* Due to an LLVM limitation, split 3-element writes
2425 * into a 2-element and a 1-element write. */
2427 writemask
|= 1 << (start
+ 2);
2431 start
*= elem_size_mult
;
2432 count
*= elem_size_mult
;
2435 writemask
|= ((1u << (count
- 4)) - 1u) << (start
+ 4);
2440 store_name
= "llvm.amdgcn.buffer.store.v4f32";
2442 } else if (count
== 2) {
2443 tmp
= LLVMBuildExtractElement(ctx
->ac
.builder
,
2444 base_data
, LLVMConstInt(ctx
->ac
.i32
, start
, false), "");
2445 data
= LLVMBuildInsertElement(ctx
->ac
.builder
, LLVMGetUndef(ctx
->ac
.v2f32
), tmp
,
2448 tmp
= LLVMBuildExtractElement(ctx
->ac
.builder
,
2449 base_data
, LLVMConstInt(ctx
->ac
.i32
, start
+ 1, false), "");
2450 data
= LLVMBuildInsertElement(ctx
->ac
.builder
, data
, tmp
,
2452 store_name
= "llvm.amdgcn.buffer.store.v2f32";
2456 if (get_llvm_num_components(base_data
) > 1)
2457 data
= LLVMBuildExtractElement(ctx
->ac
.builder
, base_data
,
2458 LLVMConstInt(ctx
->ac
.i32
, start
, false), "");
2461 store_name
= "llvm.amdgcn.buffer.store.f32";
2464 offset
= base_offset
;
2466 offset
= LLVMBuildAdd(ctx
->ac
.builder
, offset
, LLVMConstInt(ctx
->ac
.i32
, start
* 4, false), "");
2470 ac_build_intrinsic(&ctx
->ac
, store_name
,
2471 ctx
->ac
.voidt
, params
, 6, 0);
2475 static LLVMValueRef
visit_atomic_ssbo(struct ac_nir_context
*ctx
,
2476 const nir_intrinsic_instr
*instr
)
2479 LLVMValueRef params
[6];
2482 if (instr
->intrinsic
== nir_intrinsic_ssbo_atomic_comp_swap
) {
2483 params
[arg_count
++] = llvm_extract_elem(&ctx
->ac
, get_src(ctx
, instr
->src
[3]), 0);
2485 params
[arg_count
++] = llvm_extract_elem(&ctx
->ac
, get_src(ctx
, instr
->src
[2]), 0);
2486 params
[arg_count
++] = ctx
->abi
->load_ssbo(ctx
->abi
,
2487 get_src(ctx
, instr
->src
[0]),
2489 params
[arg_count
++] = ctx
->ac
.i32_0
; /* vindex */
2490 params
[arg_count
++] = get_src(ctx
, instr
->src
[1]); /* voffset */
2491 params
[arg_count
++] = LLVMConstInt(ctx
->ac
.i1
, 0, false); /* slc */
2493 switch (instr
->intrinsic
) {
2494 case nir_intrinsic_ssbo_atomic_add
:
2495 name
= "llvm.amdgcn.buffer.atomic.add";
2497 case nir_intrinsic_ssbo_atomic_imin
:
2498 name
= "llvm.amdgcn.buffer.atomic.smin";
2500 case nir_intrinsic_ssbo_atomic_umin
:
2501 name
= "llvm.amdgcn.buffer.atomic.umin";
2503 case nir_intrinsic_ssbo_atomic_imax
:
2504 name
= "llvm.amdgcn.buffer.atomic.smax";
2506 case nir_intrinsic_ssbo_atomic_umax
:
2507 name
= "llvm.amdgcn.buffer.atomic.umax";
2509 case nir_intrinsic_ssbo_atomic_and
:
2510 name
= "llvm.amdgcn.buffer.atomic.and";
2512 case nir_intrinsic_ssbo_atomic_or
:
2513 name
= "llvm.amdgcn.buffer.atomic.or";
2515 case nir_intrinsic_ssbo_atomic_xor
:
2516 name
= "llvm.amdgcn.buffer.atomic.xor";
2518 case nir_intrinsic_ssbo_atomic_exchange
:
2519 name
= "llvm.amdgcn.buffer.atomic.swap";
2521 case nir_intrinsic_ssbo_atomic_comp_swap
:
2522 name
= "llvm.amdgcn.buffer.atomic.cmpswap";
2528 return ac_build_intrinsic(&ctx
->ac
, name
, ctx
->ac
.i32
, params
, arg_count
, 0);
2531 static LLVMValueRef
visit_load_buffer(struct ac_nir_context
*ctx
,
2532 const nir_intrinsic_instr
*instr
)
2534 LLVMValueRef results
[2];
2535 int load_components
;
2536 int num_components
= instr
->num_components
;
2537 if (instr
->dest
.ssa
.bit_size
== 64)
2538 num_components
*= 2;
2540 for (int i
= 0; i
< num_components
; i
+= load_components
) {
2541 load_components
= MIN2(num_components
- i
, 4);
2542 const char *load_name
;
2543 LLVMTypeRef data_type
= ctx
->ac
.f32
;
2544 LLVMValueRef offset
= LLVMConstInt(ctx
->ac
.i32
, i
* 4, false);
2545 offset
= LLVMBuildAdd(ctx
->ac
.builder
, get_src(ctx
, instr
->src
[1]), offset
, "");
2547 if (load_components
== 3)
2548 data_type
= LLVMVectorType(ctx
->ac
.f32
, 4);
2549 else if (load_components
> 1)
2550 data_type
= LLVMVectorType(ctx
->ac
.f32
, load_components
);
2552 if (load_components
>= 3)
2553 load_name
= "llvm.amdgcn.buffer.load.v4f32";
2554 else if (load_components
== 2)
2555 load_name
= "llvm.amdgcn.buffer.load.v2f32";
2556 else if (load_components
== 1)
2557 load_name
= "llvm.amdgcn.buffer.load.f32";
2559 unreachable("unhandled number of components");
2561 LLVMValueRef params
[] = {
2562 ctx
->abi
->load_ssbo(ctx
->abi
,
2563 get_src(ctx
, instr
->src
[0]),
2571 results
[i
] = ac_build_intrinsic(&ctx
->ac
, load_name
, data_type
, params
, 5, 0);
2576 LLVMValueRef ret
= results
[0];
2577 if (num_components
> 4 || num_components
== 3) {
2578 LLVMValueRef masks
[] = {
2579 LLVMConstInt(ctx
->ac
.i32
, 0, false), LLVMConstInt(ctx
->ac
.i32
, 1, false),
2580 LLVMConstInt(ctx
->ac
.i32
, 2, false), LLVMConstInt(ctx
->ac
.i32
, 3, false),
2581 LLVMConstInt(ctx
->ac
.i32
, 4, false), LLVMConstInt(ctx
->ac
.i32
, 5, false),
2582 LLVMConstInt(ctx
->ac
.i32
, 6, false), LLVMConstInt(ctx
->ac
.i32
, 7, false)
2585 LLVMValueRef swizzle
= LLVMConstVector(masks
, num_components
);
2586 ret
= LLVMBuildShuffleVector(ctx
->ac
.builder
, results
[0],
2587 results
[num_components
> 4 ? 1 : 0], swizzle
, "");
2590 return LLVMBuildBitCast(ctx
->ac
.builder
, ret
,
2591 get_def_type(ctx
, &instr
->dest
.ssa
), "");
2594 static LLVMValueRef
visit_load_ubo_buffer(struct ac_nir_context
*ctx
,
2595 const nir_intrinsic_instr
*instr
)
2597 LLVMValueRef results
[8], ret
;
2598 LLVMValueRef rsrc
= get_src(ctx
, instr
->src
[0]);
2599 LLVMValueRef offset
= get_src(ctx
, instr
->src
[1]);
2600 int num_components
= instr
->num_components
;
2602 if (ctx
->abi
->load_ubo
)
2603 rsrc
= ctx
->abi
->load_ubo(ctx
->abi
, rsrc
);
2605 if (instr
->dest
.ssa
.bit_size
== 64)
2606 num_components
*= 2;
2608 for (unsigned i
= 0; i
< num_components
; ++i
) {
2609 LLVMValueRef params
[] = {
2611 LLVMBuildAdd(ctx
->ac
.builder
, LLVMConstInt(ctx
->ac
.i32
, 4 * i
, 0),
2614 results
[i
] = ac_build_intrinsic(&ctx
->ac
, "llvm.SI.load.const.v4i32", ctx
->ac
.f32
,
2616 AC_FUNC_ATTR_READNONE
|
2617 AC_FUNC_ATTR_LEGACY
);
2621 ret
= ac_build_gather_values(&ctx
->ac
, results
, num_components
);
2622 return LLVMBuildBitCast(ctx
->ac
.builder
, ret
,
2623 get_def_type(ctx
, &instr
->dest
.ssa
), "");
2627 get_deref_offset(struct ac_nir_context
*ctx
, nir_deref_var
*deref
,
2628 bool vs_in
, unsigned *vertex_index_out
,
2629 LLVMValueRef
*vertex_index_ref
,
2630 unsigned *const_out
, LLVMValueRef
*indir_out
)
2632 unsigned const_offset
= 0;
2633 nir_deref
*tail
= &deref
->deref
;
2634 LLVMValueRef offset
= NULL
;
2636 if (vertex_index_out
!= NULL
|| vertex_index_ref
!= NULL
) {
2638 nir_deref_array
*deref_array
= nir_deref_as_array(tail
);
2639 if (vertex_index_out
)
2640 *vertex_index_out
= deref_array
->base_offset
;
2642 if (vertex_index_ref
) {
2643 LLVMValueRef vtx
= LLVMConstInt(ctx
->ac
.i32
, deref_array
->base_offset
, false);
2644 if (deref_array
->deref_array_type
== nir_deref_array_type_indirect
) {
2645 vtx
= LLVMBuildAdd(ctx
->ac
.builder
, vtx
, get_src(ctx
, deref_array
->indirect
), "");
2647 *vertex_index_ref
= vtx
;
2651 if (deref
->var
->data
.compact
) {
2652 assert(tail
->child
->deref_type
== nir_deref_type_array
);
2653 assert(glsl_type_is_scalar(glsl_without_array(deref
->var
->type
)));
2654 nir_deref_array
*deref_array
= nir_deref_as_array(tail
->child
);
2655 /* We always lower indirect dereferences for "compact" array vars. */
2656 assert(deref_array
->deref_array_type
== nir_deref_array_type_direct
);
2658 const_offset
= deref_array
->base_offset
;
2662 while (tail
->child
!= NULL
) {
2663 const struct glsl_type
*parent_type
= tail
->type
;
2666 if (tail
->deref_type
== nir_deref_type_array
) {
2667 nir_deref_array
*deref_array
= nir_deref_as_array(tail
);
2668 LLVMValueRef index
, stride
, local_offset
;
2669 unsigned size
= glsl_count_attribute_slots(tail
->type
, vs_in
);
2671 const_offset
+= size
* deref_array
->base_offset
;
2672 if (deref_array
->deref_array_type
== nir_deref_array_type_direct
)
2675 assert(deref_array
->deref_array_type
== nir_deref_array_type_indirect
);
2676 index
= get_src(ctx
, deref_array
->indirect
);
2677 stride
= LLVMConstInt(ctx
->ac
.i32
, size
, 0);
2678 local_offset
= LLVMBuildMul(ctx
->ac
.builder
, stride
, index
, "");
2681 offset
= LLVMBuildAdd(ctx
->ac
.builder
, offset
, local_offset
, "");
2683 offset
= local_offset
;
2684 } else if (tail
->deref_type
== nir_deref_type_struct
) {
2685 nir_deref_struct
*deref_struct
= nir_deref_as_struct(tail
);
2687 for (unsigned i
= 0; i
< deref_struct
->index
; i
++) {
2688 const struct glsl_type
*ft
= glsl_get_struct_field(parent_type
, i
);
2689 const_offset
+= glsl_count_attribute_slots(ft
, vs_in
);
2692 unreachable("unsupported deref type");
2696 if (const_offset
&& offset
)
2697 offset
= LLVMBuildAdd(ctx
->ac
.builder
, offset
,
2698 LLVMConstInt(ctx
->ac
.i32
, const_offset
, 0),
2701 *const_out
= const_offset
;
2702 *indir_out
= offset
;
2706 /* The offchip buffer layout for TCS->TES is
2708 * - attribute 0 of patch 0 vertex 0
2709 * - attribute 0 of patch 0 vertex 1
2710 * - attribute 0 of patch 0 vertex 2
2712 * - attribute 0 of patch 1 vertex 0
2713 * - attribute 0 of patch 1 vertex 1
2715 * - attribute 1 of patch 0 vertex 0
2716 * - attribute 1 of patch 0 vertex 1
2718 * - per patch attribute 0 of patch 0
2719 * - per patch attribute 0 of patch 1
2722 * Note that every attribute has 4 components.
2724 static LLVMValueRef
get_tcs_tes_buffer_address(struct nir_to_llvm_context
*ctx
,
2725 LLVMValueRef vertex_index
,
2726 LLVMValueRef param_index
)
2728 LLVMValueRef base_addr
, vertices_per_patch
, num_patches
, total_vertices
;
2729 LLVMValueRef param_stride
, constant16
;
2730 LLVMValueRef rel_patch_id
= get_rel_patch_id(ctx
);
2732 vertices_per_patch
= unpack_param(&ctx
->ac
, ctx
->tcs_offchip_layout
, 9, 6);
2733 num_patches
= unpack_param(&ctx
->ac
, ctx
->tcs_offchip_layout
, 0, 9);
2734 total_vertices
= LLVMBuildMul(ctx
->builder
, vertices_per_patch
,
2737 constant16
= LLVMConstInt(ctx
->ac
.i32
, 16, false);
2739 base_addr
= LLVMBuildMul(ctx
->builder
, rel_patch_id
,
2740 vertices_per_patch
, "");
2742 base_addr
= LLVMBuildAdd(ctx
->builder
, base_addr
,
2745 param_stride
= total_vertices
;
2747 base_addr
= rel_patch_id
;
2748 param_stride
= num_patches
;
2751 base_addr
= LLVMBuildAdd(ctx
->builder
, base_addr
,
2752 LLVMBuildMul(ctx
->builder
, param_index
,
2753 param_stride
, ""), "");
2755 base_addr
= LLVMBuildMul(ctx
->builder
, base_addr
, constant16
, "");
2757 if (!vertex_index
) {
2758 LLVMValueRef patch_data_offset
=
2759 unpack_param(&ctx
->ac
, ctx
->tcs_offchip_layout
, 16, 16);
2761 base_addr
= LLVMBuildAdd(ctx
->builder
, base_addr
,
2762 patch_data_offset
, "");
2767 static LLVMValueRef
get_tcs_tes_buffer_address_params(struct nir_to_llvm_context
*ctx
,
2769 unsigned const_index
,
2771 LLVMValueRef vertex_index
,
2772 LLVMValueRef indir_index
)
2774 LLVMValueRef param_index
;
2777 param_index
= LLVMBuildAdd(ctx
->builder
, LLVMConstInt(ctx
->ac
.i32
, param
, false),
2780 if (const_index
&& !is_compact
)
2781 param
+= const_index
;
2782 param_index
= LLVMConstInt(ctx
->ac
.i32
, param
, false);
2784 return get_tcs_tes_buffer_address(ctx
, vertex_index
, param_index
);
2788 mark_tess_output(struct nir_to_llvm_context
*ctx
,
2789 bool is_patch
, uint32_t param
)
2793 ctx
->tess_patch_outputs_written
|= (1ull << param
);
2795 ctx
->tess_outputs_written
|= (1ull << param
);
2799 get_dw_address(struct nir_to_llvm_context
*ctx
,
2800 LLVMValueRef dw_addr
,
2802 unsigned const_index
,
2803 bool compact_const_index
,
2804 LLVMValueRef vertex_index
,
2805 LLVMValueRef stride
,
2806 LLVMValueRef indir_index
)
2811 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2812 LLVMBuildMul(ctx
->builder
,
2818 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2819 LLVMBuildMul(ctx
->builder
, indir_index
,
2820 LLVMConstInt(ctx
->ac
.i32
, 4, false), ""), "");
2821 else if (const_index
&& !compact_const_index
)
2822 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2823 LLVMConstInt(ctx
->ac
.i32
, const_index
, false), "");
2825 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2826 LLVMConstInt(ctx
->ac
.i32
, param
* 4, false), "");
2828 if (const_index
&& compact_const_index
)
2829 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2830 LLVMConstInt(ctx
->ac
.i32
, const_index
, false), "");
2835 load_tcs_input(struct ac_shader_abi
*abi
,
2836 LLVMValueRef vertex_index
,
2837 LLVMValueRef indir_index
,
2838 unsigned const_index
,
2840 unsigned driver_location
,
2842 unsigned num_components
,
2846 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
2847 LLVMValueRef dw_addr
, stride
;
2848 LLVMValueRef value
[4], result
;
2849 unsigned param
= shader_io_get_unique_index(location
);
2851 stride
= unpack_param(&ctx
->ac
, ctx
->tcs_in_layout
, 13, 8);
2852 dw_addr
= get_tcs_in_current_patch_offset(ctx
);
2853 dw_addr
= get_dw_address(ctx
, dw_addr
, param
, const_index
, is_compact
, vertex_index
, stride
,
2856 for (unsigned i
= 0; i
< num_components
+ component
; i
++) {
2857 value
[i
] = ac_lds_load(&ctx
->ac
, dw_addr
);
2858 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2861 result
= ac_build_varying_gather_values(&ctx
->ac
, value
, num_components
, component
);
2866 load_tcs_output(struct nir_to_llvm_context
*ctx
,
2867 nir_intrinsic_instr
*instr
)
2869 LLVMValueRef dw_addr
;
2870 LLVMValueRef stride
= NULL
;
2871 LLVMValueRef value
[4], result
;
2872 LLVMValueRef vertex_index
= NULL
;
2873 LLVMValueRef indir_index
= NULL
;
2874 unsigned const_index
= 0;
2876 const bool per_vertex
= nir_is_per_vertex_io(instr
->variables
[0]->var
, ctx
->stage
);
2877 const bool is_compact
= instr
->variables
[0]->var
->data
.compact
;
2878 param
= shader_io_get_unique_index(instr
->variables
[0]->var
->data
.location
);
2879 get_deref_offset(ctx
->nir
, instr
->variables
[0],
2880 false, NULL
, per_vertex
? &vertex_index
: NULL
,
2881 &const_index
, &indir_index
);
2883 if (!instr
->variables
[0]->var
->data
.patch
) {
2884 stride
= unpack_param(&ctx
->ac
, ctx
->tcs_out_layout
, 13, 8);
2885 dw_addr
= get_tcs_out_current_patch_offset(ctx
);
2887 dw_addr
= get_tcs_out_current_patch_data_offset(ctx
);
2890 dw_addr
= get_dw_address(ctx
, dw_addr
, param
, const_index
, is_compact
, vertex_index
, stride
,
2893 unsigned comp
= instr
->variables
[0]->var
->data
.location_frac
;
2894 for (unsigned i
= comp
; i
< instr
->num_components
+ comp
; i
++) {
2895 value
[i
] = ac_lds_load(&ctx
->ac
, dw_addr
);
2896 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2899 result
= ac_build_varying_gather_values(&ctx
->ac
, value
, instr
->num_components
, comp
);
2900 result
= LLVMBuildBitCast(ctx
->builder
, result
, get_def_type(ctx
->nir
, &instr
->dest
.ssa
), "");
2905 store_tcs_output(struct ac_shader_abi
*abi
,
2906 LLVMValueRef vertex_index
,
2907 LLVMValueRef param_index
,
2908 unsigned const_index
,
2910 unsigned driver_location
,
2917 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
2918 LLVMValueRef dw_addr
;
2919 LLVMValueRef stride
= NULL
;
2920 LLVMValueRef buf_addr
= NULL
;
2922 bool store_lds
= true;
2925 if (!(ctx
->tcs_patch_outputs_read
& (1U << (location
- VARYING_SLOT_PATCH0
))))
2928 if (!(ctx
->tcs_outputs_read
& (1ULL << location
)))
2932 param
= shader_io_get_unique_index(location
);
2933 if (location
== VARYING_SLOT_CLIP_DIST0
&&
2934 is_compact
&& const_index
> 3) {
2940 stride
= unpack_param(&ctx
->ac
, ctx
->tcs_out_layout
, 13, 8);
2941 dw_addr
= get_tcs_out_current_patch_offset(ctx
);
2943 dw_addr
= get_tcs_out_current_patch_data_offset(ctx
);
2946 mark_tess_output(ctx
, is_patch
, param
);
2948 dw_addr
= get_dw_address(ctx
, dw_addr
, param
, const_index
, is_compact
, vertex_index
, stride
,
2950 buf_addr
= get_tcs_tes_buffer_address_params(ctx
, param
, const_index
, is_compact
,
2951 vertex_index
, param_index
);
2953 bool is_tess_factor
= false;
2954 if (location
== VARYING_SLOT_TESS_LEVEL_INNER
||
2955 location
== VARYING_SLOT_TESS_LEVEL_OUTER
)
2956 is_tess_factor
= true;
2958 unsigned base
= is_compact
? const_index
: 0;
2959 for (unsigned chan
= 0; chan
< 8; chan
++) {
2960 if (!(writemask
& (1 << chan
)))
2962 LLVMValueRef value
= llvm_extract_elem(&ctx
->ac
, src
, chan
- component
);
2964 if (store_lds
|| is_tess_factor
)
2965 ac_lds_store(&ctx
->ac
, dw_addr
, value
);
2967 if (!is_tess_factor
&& writemask
!= 0xF)
2968 ac_build_buffer_store_dword(&ctx
->ac
, ctx
->hs_ring_tess_offchip
, value
, 1,
2969 buf_addr
, ctx
->oc_lds
,
2970 4 * (base
+ chan
), 1, 0, true, false);
2972 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2976 if (writemask
== 0xF) {
2977 ac_build_buffer_store_dword(&ctx
->ac
, ctx
->hs_ring_tess_offchip
, src
, 4,
2978 buf_addr
, ctx
->oc_lds
,
2979 (base
* 4), 1, 0, true, false);
2984 load_tes_input(struct ac_shader_abi
*abi
,
2985 LLVMValueRef vertex_index
,
2986 LLVMValueRef param_index
,
2987 unsigned const_index
,
2989 unsigned driver_location
,
2991 unsigned num_components
,
2995 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
2996 LLVMValueRef buf_addr
;
2997 LLVMValueRef result
;
2998 unsigned param
= shader_io_get_unique_index(location
);
3000 if (location
== VARYING_SLOT_CLIP_DIST0
&& is_compact
&& const_index
> 3) {
3005 buf_addr
= get_tcs_tes_buffer_address_params(ctx
, param
, const_index
,
3006 is_compact
, vertex_index
, param_index
);
3008 LLVMValueRef comp_offset
= LLVMConstInt(ctx
->ac
.i32
, component
* 4, false);
3009 buf_addr
= LLVMBuildAdd(ctx
->builder
, buf_addr
, comp_offset
, "");
3011 result
= ac_build_buffer_load(&ctx
->ac
, ctx
->hs_ring_tess_offchip
, num_components
, NULL
,
3012 buf_addr
, ctx
->oc_lds
, is_compact
? (4 * const_index
) : 0, 1, 0, true, false);
3013 result
= trim_vector(&ctx
->ac
, result
, num_components
);
3018 load_gs_input(struct ac_shader_abi
*abi
,
3020 unsigned driver_location
,
3022 unsigned num_components
,
3023 unsigned vertex_index
,
3024 unsigned const_index
,
3027 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
3028 LLVMValueRef vtx_offset
;
3029 LLVMValueRef args
[9];
3030 unsigned param
, vtx_offset_param
;
3031 LLVMValueRef value
[4], result
;
3033 vtx_offset_param
= vertex_index
;
3034 assert(vtx_offset_param
< 6);
3035 vtx_offset
= LLVMBuildMul(ctx
->builder
, ctx
->gs_vtx_offset
[vtx_offset_param
],
3036 LLVMConstInt(ctx
->ac
.i32
, 4, false), "");
3038 param
= shader_io_get_unique_index(location
);
3040 for (unsigned i
= component
; i
< num_components
+ component
; i
++) {
3041 if (ctx
->ac
.chip_class
>= GFX9
) {
3042 LLVMValueRef dw_addr
= ctx
->gs_vtx_offset
[vtx_offset_param
];
3043 dw_addr
= LLVMBuildAdd(ctx
->ac
.builder
, dw_addr
,
3044 LLVMConstInt(ctx
->ac
.i32
, param
* 4 + i
+ const_index
, 0), "");
3045 value
[i
] = ac_lds_load(&ctx
->ac
, dw_addr
);
3047 args
[0] = ctx
->esgs_ring
;
3048 args
[1] = vtx_offset
;
3049 args
[2] = LLVMConstInt(ctx
->ac
.i32
, (param
* 4 + i
+ const_index
) * 256, false);
3050 args
[3] = ctx
->ac
.i32_0
;
3051 args
[4] = ctx
->ac
.i32_1
; /* OFFEN */
3052 args
[5] = ctx
->ac
.i32_0
; /* IDXEN */
3053 args
[6] = ctx
->ac
.i32_1
; /* GLC */
3054 args
[7] = ctx
->ac
.i32_0
; /* SLC */
3055 args
[8] = ctx
->ac
.i32_0
; /* TFE */
3057 value
[i
] = ac_build_intrinsic(&ctx
->ac
, "llvm.SI.buffer.load.dword.i32.i32",
3058 ctx
->ac
.i32
, args
, 9,
3059 AC_FUNC_ATTR_READONLY
|
3060 AC_FUNC_ATTR_LEGACY
);
3063 result
= ac_build_varying_gather_values(&ctx
->ac
, value
, num_components
, component
);
3069 build_gep_for_deref(struct ac_nir_context
*ctx
,
3070 nir_deref_var
*deref
)
3072 struct hash_entry
*entry
= _mesa_hash_table_search(ctx
->vars
, deref
->var
);
3073 assert(entry
->data
);
3074 LLVMValueRef val
= entry
->data
;
3075 nir_deref
*tail
= deref
->deref
.child
;
3076 while (tail
!= NULL
) {
3077 LLVMValueRef offset
;
3078 switch (tail
->deref_type
) {
3079 case nir_deref_type_array
: {
3080 nir_deref_array
*array
= nir_deref_as_array(tail
);
3081 offset
= LLVMConstInt(ctx
->ac
.i32
, array
->base_offset
, 0);
3082 if (array
->deref_array_type
==
3083 nir_deref_array_type_indirect
) {
3084 offset
= LLVMBuildAdd(ctx
->ac
.builder
, offset
,
3091 case nir_deref_type_struct
: {
3092 nir_deref_struct
*deref_struct
=
3093 nir_deref_as_struct(tail
);
3094 offset
= LLVMConstInt(ctx
->ac
.i32
,
3095 deref_struct
->index
, 0);
3099 unreachable("bad deref type");
3101 val
= ac_build_gep0(&ctx
->ac
, val
, offset
);
3107 static LLVMValueRef
visit_load_var(struct ac_nir_context
*ctx
,
3108 nir_intrinsic_instr
*instr
)
3110 LLVMValueRef values
[8];
3111 int idx
= instr
->variables
[0]->var
->data
.driver_location
;
3112 int ve
= instr
->dest
.ssa
.num_components
;
3113 unsigned comp
= instr
->variables
[0]->var
->data
.location_frac
;
3114 LLVMValueRef indir_index
;
3116 unsigned const_index
;
3117 unsigned stride
= instr
->variables
[0]->var
->data
.compact
? 1 : 4;
3118 bool vs_in
= ctx
->stage
== MESA_SHADER_VERTEX
&&
3119 instr
->variables
[0]->var
->data
.mode
== nir_var_shader_in
;
3120 get_deref_offset(ctx
, instr
->variables
[0], vs_in
, NULL
, NULL
,
3121 &const_index
, &indir_index
);
3123 if (instr
->dest
.ssa
.bit_size
== 64)
3126 switch (instr
->variables
[0]->var
->data
.mode
) {
3127 case nir_var_shader_in
:
3128 if (ctx
->stage
== MESA_SHADER_TESS_CTRL
||
3129 ctx
->stage
== MESA_SHADER_TESS_EVAL
) {
3130 LLVMValueRef result
;
3131 LLVMValueRef vertex_index
= NULL
;
3132 LLVMValueRef indir_index
= NULL
;
3133 unsigned const_index
= 0;
3134 unsigned location
= instr
->variables
[0]->var
->data
.location
;
3135 unsigned driver_location
= instr
->variables
[0]->var
->data
.driver_location
;
3136 const bool is_patch
= instr
->variables
[0]->var
->data
.patch
;
3137 const bool is_compact
= instr
->variables
[0]->var
->data
.compact
;
3139 get_deref_offset(ctx
, instr
->variables
[0],
3140 false, NULL
, is_patch
? NULL
: &vertex_index
,
3141 &const_index
, &indir_index
);
3143 result
= ctx
->abi
->load_tess_inputs(ctx
->abi
, vertex_index
, indir_index
,
3144 const_index
, location
, driver_location
,
3145 instr
->variables
[0]->var
->data
.location_frac
,
3146 instr
->num_components
,
3147 is_patch
, is_compact
);
3148 return LLVMBuildBitCast(ctx
->ac
.builder
, result
, get_def_type(ctx
, &instr
->dest
.ssa
), "");
3151 if (ctx
->stage
== MESA_SHADER_GEOMETRY
) {
3152 LLVMValueRef indir_index
;
3153 unsigned const_index
, vertex_index
;
3154 get_deref_offset(ctx
, instr
->variables
[0],
3155 false, &vertex_index
, NULL
,
3156 &const_index
, &indir_index
);
3157 return ctx
->abi
->load_inputs(ctx
->abi
, instr
->variables
[0]->var
->data
.location
,
3158 instr
->variables
[0]->var
->data
.driver_location
,
3159 instr
->variables
[0]->var
->data
.location_frac
, ve
,
3160 vertex_index
, const_index
,
3161 nir2llvmtype(ctx
, instr
->variables
[0]->var
->type
));
3164 for (unsigned chan
= comp
; chan
< ve
+ comp
; chan
++) {
3166 unsigned count
= glsl_count_attribute_slots(
3167 instr
->variables
[0]->var
->type
,
3168 ctx
->stage
== MESA_SHADER_VERTEX
);
3170 LLVMValueRef tmp_vec
= ac_build_gather_values_extended(
3171 &ctx
->ac
, ctx
->abi
->inputs
+ idx
+ chan
, count
,
3172 stride
, false, true);
3174 values
[chan
] = LLVMBuildExtractElement(ctx
->ac
.builder
,
3178 values
[chan
] = ctx
->abi
->inputs
[idx
+ chan
+ const_index
* stride
];
3182 for (unsigned chan
= 0; chan
< ve
; chan
++) {
3184 unsigned count
= glsl_count_attribute_slots(
3185 instr
->variables
[0]->var
->type
, false);
3187 LLVMValueRef tmp_vec
= ac_build_gather_values_extended(
3188 &ctx
->ac
, ctx
->locals
+ idx
+ chan
, count
,
3189 stride
, true, true);
3191 values
[chan
] = LLVMBuildExtractElement(ctx
->ac
.builder
,
3195 values
[chan
] = LLVMBuildLoad(ctx
->ac
.builder
, ctx
->locals
[idx
+ chan
+ const_index
* stride
], "");
3199 case nir_var_shared
: {
3200 LLVMValueRef address
= build_gep_for_deref(ctx
,
3201 instr
->variables
[0]);
3202 LLVMValueRef val
= LLVMBuildLoad(ctx
->ac
.builder
, address
, "");
3203 return LLVMBuildBitCast(ctx
->ac
.builder
, val
,
3204 get_def_type(ctx
, &instr
->dest
.ssa
),
3207 case nir_var_shader_out
:
3208 if (ctx
->stage
== MESA_SHADER_TESS_CTRL
)
3209 return load_tcs_output(ctx
->nctx
, instr
);
3211 for (unsigned chan
= comp
; chan
< ve
+ comp
; chan
++) {
3213 unsigned count
= glsl_count_attribute_slots(
3214 instr
->variables
[0]->var
->type
, false);
3216 LLVMValueRef tmp_vec
= ac_build_gather_values_extended(
3217 &ctx
->ac
, ctx
->outputs
+ idx
+ chan
, count
,
3218 stride
, true, true);
3220 values
[chan
] = LLVMBuildExtractElement(ctx
->ac
.builder
,
3224 values
[chan
] = LLVMBuildLoad(ctx
->ac
.builder
,
3225 ctx
->outputs
[idx
+ chan
+ const_index
* stride
],
3231 unreachable("unhandle variable mode");
3233 ret
= ac_build_varying_gather_values(&ctx
->ac
, values
, ve
, comp
);
3234 return LLVMBuildBitCast(ctx
->ac
.builder
, ret
, get_def_type(ctx
, &instr
->dest
.ssa
), "");
3238 visit_store_var(struct ac_nir_context
*ctx
,
3239 nir_intrinsic_instr
*instr
)
3241 LLVMValueRef temp_ptr
, value
;
3242 int idx
= instr
->variables
[0]->var
->data
.driver_location
;
3243 unsigned comp
= instr
->variables
[0]->var
->data
.location_frac
;
3244 LLVMValueRef src
= ac_to_float(&ctx
->ac
, get_src(ctx
, instr
->src
[0]));
3245 int writemask
= instr
->const_index
[0] << comp
;
3246 LLVMValueRef indir_index
;
3247 unsigned const_index
;
3248 get_deref_offset(ctx
, instr
->variables
[0], false,
3249 NULL
, NULL
, &const_index
, &indir_index
);
3251 if (get_elem_bits(&ctx
->ac
, LLVMTypeOf(src
)) == 64) {
3252 int old_writemask
= writemask
;
3254 src
= LLVMBuildBitCast(ctx
->ac
.builder
, src
,
3255 LLVMVectorType(ctx
->ac
.f32
, get_llvm_num_components(src
) * 2),
3259 for (unsigned chan
= 0; chan
< 4; chan
++) {
3260 if (old_writemask
& (1 << chan
))
3261 writemask
|= 3u << (2 * chan
);
3265 switch (instr
->variables
[0]->var
->data
.mode
) {
3266 case nir_var_shader_out
:
3268 if (ctx
->stage
== MESA_SHADER_TESS_CTRL
) {
3269 LLVMValueRef vertex_index
= NULL
;
3270 LLVMValueRef indir_index
= NULL
;
3271 unsigned const_index
= 0;
3272 const unsigned location
= instr
->variables
[0]->var
->data
.location
;
3273 const unsigned driver_location
= instr
->variables
[0]->var
->data
.driver_location
;
3274 const unsigned comp
= instr
->variables
[0]->var
->data
.location_frac
;
3275 const bool is_patch
= instr
->variables
[0]->var
->data
.patch
;
3276 const bool is_compact
= instr
->variables
[0]->var
->data
.compact
;
3278 get_deref_offset(ctx
, instr
->variables
[0],
3279 false, NULL
, is_patch
? NULL
: &vertex_index
,
3280 &const_index
, &indir_index
);
3282 ctx
->abi
->store_tcs_outputs(ctx
->abi
, vertex_index
, indir_index
,
3283 const_index
, location
, driver_location
,
3284 src
, comp
, is_patch
, is_compact
, writemask
);
3288 for (unsigned chan
= 0; chan
< 8; chan
++) {
3290 if (!(writemask
& (1 << chan
)))
3293 value
= llvm_extract_elem(&ctx
->ac
, src
, chan
- comp
);
3295 if (instr
->variables
[0]->var
->data
.compact
)
3298 unsigned count
= glsl_count_attribute_slots(
3299 instr
->variables
[0]->var
->type
, false);
3301 LLVMValueRef tmp_vec
= ac_build_gather_values_extended(
3302 &ctx
->ac
, ctx
->outputs
+ idx
+ chan
, count
,
3303 stride
, true, true);
3305 tmp_vec
= LLVMBuildInsertElement(ctx
->ac
.builder
, tmp_vec
,
3306 value
, indir_index
, "");
3307 build_store_values_extended(&ctx
->ac
, ctx
->outputs
+ idx
+ chan
,
3308 count
, stride
, tmp_vec
);
3311 temp_ptr
= ctx
->outputs
[idx
+ chan
+ const_index
* stride
];
3313 LLVMBuildStore(ctx
->ac
.builder
, value
, temp_ptr
);
3318 for (unsigned chan
= 0; chan
< 8; chan
++) {
3319 if (!(writemask
& (1 << chan
)))
3322 value
= llvm_extract_elem(&ctx
->ac
, src
, chan
);
3324 unsigned count
= glsl_count_attribute_slots(
3325 instr
->variables
[0]->var
->type
, false);
3327 LLVMValueRef tmp_vec
= ac_build_gather_values_extended(
3328 &ctx
->ac
, ctx
->locals
+ idx
+ chan
, count
,
3331 tmp_vec
= LLVMBuildInsertElement(ctx
->ac
.builder
, tmp_vec
,
3332 value
, indir_index
, "");
3333 build_store_values_extended(&ctx
->ac
, ctx
->locals
+ idx
+ chan
,
3336 temp_ptr
= ctx
->locals
[idx
+ chan
+ const_index
* 4];
3338 LLVMBuildStore(ctx
->ac
.builder
, value
, temp_ptr
);
3342 case nir_var_shared
: {
3343 int writemask
= instr
->const_index
[0];
3344 LLVMValueRef address
= build_gep_for_deref(ctx
,
3345 instr
->variables
[0]);
3346 LLVMValueRef val
= get_src(ctx
, instr
->src
[0]);
3347 unsigned components
=
3348 glsl_get_vector_elements(
3349 nir_deref_tail(&instr
->variables
[0]->deref
)->type
);
3350 if (writemask
== (1 << components
) - 1) {
3351 val
= LLVMBuildBitCast(
3352 ctx
->ac
.builder
, val
,
3353 LLVMGetElementType(LLVMTypeOf(address
)), "");
3354 LLVMBuildStore(ctx
->ac
.builder
, val
, address
);
3356 for (unsigned chan
= 0; chan
< 4; chan
++) {
3357 if (!(writemask
& (1 << chan
)))
3360 LLVMBuildStructGEP(ctx
->ac
.builder
,
3362 LLVMValueRef src
= llvm_extract_elem(&ctx
->ac
, val
,
3364 src
= LLVMBuildBitCast(
3365 ctx
->ac
.builder
, src
,
3366 LLVMGetElementType(LLVMTypeOf(ptr
)), "");
3367 LLVMBuildStore(ctx
->ac
.builder
, src
, ptr
);
3377 static int image_type_to_components_count(enum glsl_sampler_dim dim
, bool array
)
3380 case GLSL_SAMPLER_DIM_BUF
:
3382 case GLSL_SAMPLER_DIM_1D
:
3383 return array
? 2 : 1;
3384 case GLSL_SAMPLER_DIM_2D
:
3385 return array
? 3 : 2;
3386 case GLSL_SAMPLER_DIM_MS
:
3387 return array
? 4 : 3;
3388 case GLSL_SAMPLER_DIM_3D
:
3389 case GLSL_SAMPLER_DIM_CUBE
:
3391 case GLSL_SAMPLER_DIM_RECT
:
3392 case GLSL_SAMPLER_DIM_SUBPASS
:
3394 case GLSL_SAMPLER_DIM_SUBPASS_MS
:
3404 /* Adjust the sample index according to FMASK.
3406 * For uncompressed MSAA surfaces, FMASK should return 0x76543210,
3407 * which is the identity mapping. Each nibble says which physical sample
3408 * should be fetched to get that sample.
3410 * For example, 0x11111100 means there are only 2 samples stored and
3411 * the second sample covers 3/4 of the pixel. When reading samples 0
3412 * and 1, return physical sample 0 (determined by the first two 0s
3413 * in FMASK), otherwise return physical sample 1.
3415 * The sample index should be adjusted as follows:
3416 * sample_index = (fmask >> (sample_index * 4)) & 0xF;
3418 static LLVMValueRef
adjust_sample_index_using_fmask(struct ac_llvm_context
*ctx
,
3419 LLVMValueRef coord_x
, LLVMValueRef coord_y
,
3420 LLVMValueRef coord_z
,
3421 LLVMValueRef sample_index
,
3422 LLVMValueRef fmask_desc_ptr
)
3424 LLVMValueRef fmask_load_address
[4];
3427 fmask_load_address
[0] = coord_x
;
3428 fmask_load_address
[1] = coord_y
;
3430 fmask_load_address
[2] = coord_z
;
3431 fmask_load_address
[3] = LLVMGetUndef(ctx
->i32
);
3434 struct ac_image_args args
= {0};
3436 args
.opcode
= ac_image_load
;
3437 args
.da
= coord_z
? true : false;
3438 args
.resource
= fmask_desc_ptr
;
3440 args
.addr
= ac_build_gather_values(ctx
, fmask_load_address
, coord_z
? 4 : 2);
3442 res
= ac_build_image_opcode(ctx
, &args
);
3444 res
= ac_to_integer(ctx
, res
);
3445 LLVMValueRef four
= LLVMConstInt(ctx
->i32
, 4, false);
3446 LLVMValueRef F
= LLVMConstInt(ctx
->i32
, 0xf, false);
3448 LLVMValueRef fmask
= LLVMBuildExtractElement(ctx
->builder
,
3452 LLVMValueRef sample_index4
=
3453 LLVMBuildMul(ctx
->builder
, sample_index
, four
, "");
3454 LLVMValueRef shifted_fmask
=
3455 LLVMBuildLShr(ctx
->builder
, fmask
, sample_index4
, "");
3456 LLVMValueRef final_sample
=
3457 LLVMBuildAnd(ctx
->builder
, shifted_fmask
, F
, "");
3459 /* Don't rewrite the sample index if WORD1.DATA_FORMAT of the FMASK
3460 * resource descriptor is 0 (invalid),
3462 LLVMValueRef fmask_desc
=
3463 LLVMBuildBitCast(ctx
->builder
, fmask_desc_ptr
,
3466 LLVMValueRef fmask_word1
=
3467 LLVMBuildExtractElement(ctx
->builder
, fmask_desc
,
3470 LLVMValueRef word1_is_nonzero
=
3471 LLVMBuildICmp(ctx
->builder
, LLVMIntNE
,
3472 fmask_word1
, ctx
->i32_0
, "");
3474 /* Replace the MSAA sample index. */
3476 LLVMBuildSelect(ctx
->builder
, word1_is_nonzero
,
3477 final_sample
, sample_index
, "");
3478 return sample_index
;
3481 static LLVMValueRef
get_image_coords(struct ac_nir_context
*ctx
,
3482 const nir_intrinsic_instr
*instr
)
3484 const struct glsl_type
*type
= instr
->variables
[0]->var
->type
;
3485 if(instr
->variables
[0]->deref
.child
)
3486 type
= instr
->variables
[0]->deref
.child
->type
;
3488 LLVMValueRef src0
= get_src(ctx
, instr
->src
[0]);
3489 LLVMValueRef coords
[4];
3490 LLVMValueRef masks
[] = {
3491 LLVMConstInt(ctx
->ac
.i32
, 0, false), LLVMConstInt(ctx
->ac
.i32
, 1, false),
3492 LLVMConstInt(ctx
->ac
.i32
, 2, false), LLVMConstInt(ctx
->ac
.i32
, 3, false),
3495 LLVMValueRef sample_index
= llvm_extract_elem(&ctx
->ac
, get_src(ctx
, instr
->src
[1]), 0);
3498 enum glsl_sampler_dim dim
= glsl_get_sampler_dim(type
);
3499 bool is_array
= glsl_sampler_type_is_array(type
);
3500 bool add_frag_pos
= (dim
== GLSL_SAMPLER_DIM_SUBPASS
||
3501 dim
== GLSL_SAMPLER_DIM_SUBPASS_MS
);
3502 bool is_ms
= (dim
== GLSL_SAMPLER_DIM_MS
||
3503 dim
== GLSL_SAMPLER_DIM_SUBPASS_MS
);
3504 bool gfx9_1d
= ctx
->ac
.chip_class
>= GFX9
&& dim
== GLSL_SAMPLER_DIM_1D
;
3505 count
= image_type_to_components_count(dim
, is_array
);
3508 LLVMValueRef fmask_load_address
[3];
3511 fmask_load_address
[0] = LLVMBuildExtractElement(ctx
->ac
.builder
, src0
, masks
[0], "");
3512 fmask_load_address
[1] = LLVMBuildExtractElement(ctx
->ac
.builder
, src0
, masks
[1], "");
3514 fmask_load_address
[2] = LLVMBuildExtractElement(ctx
->ac
.builder
, src0
, masks
[2], "");
3516 fmask_load_address
[2] = NULL
;
3518 for (chan
= 0; chan
< 2; ++chan
)
3519 fmask_load_address
[chan
] =
3520 LLVMBuildAdd(ctx
->ac
.builder
, fmask_load_address
[chan
],
3521 LLVMBuildFPToUI(ctx
->ac
.builder
, ctx
->abi
->frag_pos
[chan
],
3522 ctx
->ac
.i32
, ""), "");
3523 fmask_load_address
[2] = ac_to_integer(&ctx
->ac
, ctx
->abi
->inputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_LAYER
, 0)]);
3525 sample_index
= adjust_sample_index_using_fmask(&ctx
->ac
,
3526 fmask_load_address
[0],
3527 fmask_load_address
[1],
3528 fmask_load_address
[2],
3530 get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_FMASK
, NULL
, true, false));
3532 if (count
== 1 && !gfx9_1d
) {
3533 if (instr
->src
[0].ssa
->num_components
)
3534 res
= LLVMBuildExtractElement(ctx
->ac
.builder
, src0
, masks
[0], "");
3541 for (chan
= 0; chan
< count
; ++chan
) {
3542 coords
[chan
] = llvm_extract_elem(&ctx
->ac
, src0
, chan
);
3545 for (chan
= 0; chan
< 2; ++chan
)
3546 coords
[chan
] = LLVMBuildAdd(ctx
->ac
.builder
, coords
[chan
], LLVMBuildFPToUI(ctx
->ac
.builder
, ctx
->abi
->frag_pos
[chan
],
3547 ctx
->ac
.i32
, ""), "");
3548 coords
[2] = ac_to_integer(&ctx
->ac
, ctx
->abi
->inputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_LAYER
, 0)]);
3554 coords
[2] = coords
[1];
3555 coords
[1] = ctx
->ac
.i32_0
;
3557 coords
[1] = ctx
->ac
.i32_0
;
3562 coords
[count
] = sample_index
;
3567 coords
[3] = LLVMGetUndef(ctx
->ac
.i32
);
3570 res
= ac_build_gather_values(&ctx
->ac
, coords
, count
);
3575 static LLVMValueRef
visit_image_load(struct ac_nir_context
*ctx
,
3576 const nir_intrinsic_instr
*instr
)
3578 LLVMValueRef params
[7];
3580 char intrinsic_name
[64];
3581 const nir_variable
*var
= instr
->variables
[0]->var
;
3582 const struct glsl_type
*type
= var
->type
;
3584 if(instr
->variables
[0]->deref
.child
)
3585 type
= instr
->variables
[0]->deref
.child
->type
;
3587 type
= glsl_without_array(type
);
3588 if (glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_BUF
) {
3589 params
[0] = get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_BUFFER
, NULL
, true, false);
3590 params
[1] = LLVMBuildExtractElement(ctx
->ac
.builder
, get_src(ctx
, instr
->src
[0]),
3591 ctx
->ac
.i32_0
, ""); /* vindex */
3592 params
[2] = ctx
->ac
.i32_0
; /* voffset */
3593 params
[3] = ctx
->ac
.i1false
; /* glc */
3594 params
[4] = ctx
->ac
.i1false
; /* slc */
3595 res
= ac_build_intrinsic(&ctx
->ac
, "llvm.amdgcn.buffer.load.format.v4f32", ctx
->ac
.v4f32
,
3598 res
= trim_vector(&ctx
->ac
, res
, instr
->dest
.ssa
.num_components
);
3599 res
= ac_to_integer(&ctx
->ac
, res
);
3601 bool is_da
= glsl_sampler_type_is_array(type
) ||
3602 glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_CUBE
||
3603 glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_SUBPASS
||
3604 glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_SUBPASS_MS
;
3605 LLVMValueRef da
= is_da
? ctx
->ac
.i1true
: ctx
->ac
.i1false
;
3606 LLVMValueRef glc
= ctx
->ac
.i1false
;
3607 LLVMValueRef slc
= ctx
->ac
.i1false
;
3609 params
[0] = get_image_coords(ctx
, instr
);
3610 params
[1] = get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_IMAGE
, NULL
, true, false);
3611 params
[2] = LLVMConstInt(ctx
->ac
.i32
, 15, false); /* dmask */
3612 if (HAVE_LLVM
<= 0x0309) {
3613 params
[3] = ctx
->ac
.i1false
; /* r128 */
3618 LLVMValueRef lwe
= ctx
->ac
.i1false
;
3625 ac_get_image_intr_name("llvm.amdgcn.image.load",
3626 ctx
->ac
.v4f32
, /* vdata */
3627 LLVMTypeOf(params
[0]), /* coords */
3628 LLVMTypeOf(params
[1]), /* rsrc */
3629 intrinsic_name
, sizeof(intrinsic_name
));
3631 res
= ac_build_intrinsic(&ctx
->ac
, intrinsic_name
, ctx
->ac
.v4f32
,
3632 params
, 7, AC_FUNC_ATTR_READONLY
);
3634 return ac_to_integer(&ctx
->ac
, res
);
3637 static void visit_image_store(struct ac_nir_context
*ctx
,
3638 nir_intrinsic_instr
*instr
)
3640 LLVMValueRef params
[8];
3641 char intrinsic_name
[64];
3642 const nir_variable
*var
= instr
->variables
[0]->var
;
3643 const struct glsl_type
*type
= glsl_without_array(var
->type
);
3644 LLVMValueRef glc
= ctx
->ac
.i1false
;
3645 bool force_glc
= ctx
->ac
.chip_class
== SI
;
3647 glc
= ctx
->ac
.i1true
;
3649 if (glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_BUF
) {
3650 params
[0] = ac_to_float(&ctx
->ac
, get_src(ctx
, instr
->src
[2])); /* data */
3651 params
[1] = get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_BUFFER
, NULL
, true, true);
3652 params
[2] = LLVMBuildExtractElement(ctx
->ac
.builder
, get_src(ctx
, instr
->src
[0]),
3653 ctx
->ac
.i32_0
, ""); /* vindex */
3654 params
[3] = ctx
->ac
.i32_0
; /* voffset */
3655 params
[4] = glc
; /* glc */
3656 params
[5] = ctx
->ac
.i1false
; /* slc */
3657 ac_build_intrinsic(&ctx
->ac
, "llvm.amdgcn.buffer.store.format.v4f32", ctx
->ac
.voidt
,
3660 bool is_da
= glsl_sampler_type_is_array(type
) ||
3661 glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_CUBE
;
3662 LLVMValueRef da
= is_da
? ctx
->ac
.i1true
: ctx
->ac
.i1false
;
3663 LLVMValueRef slc
= ctx
->ac
.i1false
;
3665 params
[0] = ac_to_float(&ctx
->ac
, get_src(ctx
, instr
->src
[2]));
3666 params
[1] = get_image_coords(ctx
, instr
); /* coords */
3667 params
[2] = get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_IMAGE
, NULL
, true, true);
3668 params
[3] = LLVMConstInt(ctx
->ac
.i32
, 15, false); /* dmask */
3669 if (HAVE_LLVM
<= 0x0309) {
3670 params
[4] = ctx
->ac
.i1false
; /* r128 */
3675 LLVMValueRef lwe
= ctx
->ac
.i1false
;
3682 ac_get_image_intr_name("llvm.amdgcn.image.store",
3683 LLVMTypeOf(params
[0]), /* vdata */
3684 LLVMTypeOf(params
[1]), /* coords */
3685 LLVMTypeOf(params
[2]), /* rsrc */
3686 intrinsic_name
, sizeof(intrinsic_name
));
3688 ac_build_intrinsic(&ctx
->ac
, intrinsic_name
, ctx
->ac
.voidt
,
3694 static LLVMValueRef
visit_image_atomic(struct ac_nir_context
*ctx
,
3695 const nir_intrinsic_instr
*instr
)
3697 LLVMValueRef params
[7];
3698 int param_count
= 0;
3699 const nir_variable
*var
= instr
->variables
[0]->var
;
3701 const char *atomic_name
;
3702 char intrinsic_name
[41];
3703 const struct glsl_type
*type
= glsl_without_array(var
->type
);
3704 MAYBE_UNUSED
int length
;
3706 bool is_unsigned
= glsl_get_sampler_result_type(type
) == GLSL_TYPE_UINT
;
3708 switch (instr
->intrinsic
) {
3709 case nir_intrinsic_image_atomic_add
:
3710 atomic_name
= "add";
3712 case nir_intrinsic_image_atomic_min
:
3713 atomic_name
= is_unsigned
? "umin" : "smin";
3715 case nir_intrinsic_image_atomic_max
:
3716 atomic_name
= is_unsigned
? "umax" : "smax";
3718 case nir_intrinsic_image_atomic_and
:
3719 atomic_name
= "and";
3721 case nir_intrinsic_image_atomic_or
:
3724 case nir_intrinsic_image_atomic_xor
:
3725 atomic_name
= "xor";
3727 case nir_intrinsic_image_atomic_exchange
:
3728 atomic_name
= "swap";
3730 case nir_intrinsic_image_atomic_comp_swap
:
3731 atomic_name
= "cmpswap";
3737 if (instr
->intrinsic
== nir_intrinsic_image_atomic_comp_swap
)
3738 params
[param_count
++] = get_src(ctx
, instr
->src
[3]);
3739 params
[param_count
++] = get_src(ctx
, instr
->src
[2]);
3741 if (glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_BUF
) {
3742 params
[param_count
++] = get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_BUFFER
,
3744 params
[param_count
++] = LLVMBuildExtractElement(ctx
->ac
.builder
, get_src(ctx
, instr
->src
[0]),
3745 ctx
->ac
.i32_0
, ""); /* vindex */
3746 params
[param_count
++] = ctx
->ac
.i32_0
; /* voffset */
3747 params
[param_count
++] = ctx
->ac
.i1false
; /* slc */
3749 length
= snprintf(intrinsic_name
, sizeof(intrinsic_name
),
3750 "llvm.amdgcn.buffer.atomic.%s", atomic_name
);
3752 char coords_type
[8];
3754 bool da
= glsl_sampler_type_is_array(type
) ||
3755 glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_CUBE
;
3757 LLVMValueRef coords
= params
[param_count
++] = get_image_coords(ctx
, instr
);
3758 params
[param_count
++] = get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_IMAGE
,
3760 params
[param_count
++] = ctx
->ac
.i1false
; /* r128 */
3761 params
[param_count
++] = da
? ctx
->ac
.i1true
: ctx
->ac
.i1false
; /* da */
3762 params
[param_count
++] = ctx
->ac
.i1false
; /* slc */
3764 build_int_type_name(LLVMTypeOf(coords
),
3765 coords_type
, sizeof(coords_type
));
3767 length
= snprintf(intrinsic_name
, sizeof(intrinsic_name
),
3768 "llvm.amdgcn.image.atomic.%s.%s", atomic_name
, coords_type
);
3771 assert(length
< sizeof(intrinsic_name
));
3772 return ac_build_intrinsic(&ctx
->ac
, intrinsic_name
, ctx
->ac
.i32
, params
, param_count
, 0);
3775 static LLVMValueRef
visit_image_size(struct ac_nir_context
*ctx
,
3776 const nir_intrinsic_instr
*instr
)
3779 const nir_variable
*var
= instr
->variables
[0]->var
;
3780 const struct glsl_type
*type
= instr
->variables
[0]->var
->type
;
3781 bool da
= glsl_sampler_type_is_array(var
->type
) ||
3782 glsl_get_sampler_dim(var
->type
) == GLSL_SAMPLER_DIM_CUBE
;
3783 if(instr
->variables
[0]->deref
.child
)
3784 type
= instr
->variables
[0]->deref
.child
->type
;
3786 if (glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_BUF
)
3787 return get_buffer_size(ctx
,
3788 get_sampler_desc(ctx
, instr
->variables
[0],
3789 AC_DESC_BUFFER
, NULL
, true, false), true);
3791 struct ac_image_args args
= { 0 };
3795 args
.resource
= get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_IMAGE
, NULL
, true, false);
3796 args
.opcode
= ac_image_get_resinfo
;
3797 args
.addr
= ctx
->ac
.i32_0
;
3799 res
= ac_build_image_opcode(&ctx
->ac
, &args
);
3801 LLVMValueRef two
= LLVMConstInt(ctx
->ac
.i32
, 2, false);
3803 if (glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_CUBE
&&
3804 glsl_sampler_type_is_array(type
)) {
3805 LLVMValueRef six
= LLVMConstInt(ctx
->ac
.i32
, 6, false);
3806 LLVMValueRef z
= LLVMBuildExtractElement(ctx
->ac
.builder
, res
, two
, "");
3807 z
= LLVMBuildSDiv(ctx
->ac
.builder
, z
, six
, "");
3808 res
= LLVMBuildInsertElement(ctx
->ac
.builder
, res
, z
, two
, "");
3810 if (ctx
->ac
.chip_class
>= GFX9
&&
3811 glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_1D
&&
3812 glsl_sampler_type_is_array(type
)) {
3813 LLVMValueRef layers
= LLVMBuildExtractElement(ctx
->ac
.builder
, res
, two
, "");
3814 res
= LLVMBuildInsertElement(ctx
->ac
.builder
, res
, layers
,
3821 #define NOOP_WAITCNT 0xf7f
3822 #define LGKM_CNT 0x07f
3823 #define VM_CNT 0xf70
3825 static void emit_membar(struct nir_to_llvm_context
*ctx
,
3826 const nir_intrinsic_instr
*instr
)
3828 unsigned waitcnt
= NOOP_WAITCNT
;
3830 switch (instr
->intrinsic
) {
3831 case nir_intrinsic_memory_barrier
:
3832 case nir_intrinsic_group_memory_barrier
:
3833 waitcnt
&= VM_CNT
& LGKM_CNT
;
3835 case nir_intrinsic_memory_barrier_atomic_counter
:
3836 case nir_intrinsic_memory_barrier_buffer
:
3837 case nir_intrinsic_memory_barrier_image
:
3840 case nir_intrinsic_memory_barrier_shared
:
3841 waitcnt
&= LGKM_CNT
;
3846 if (waitcnt
!= NOOP_WAITCNT
)
3847 ac_build_waitcnt(&ctx
->ac
, waitcnt
);
3850 static void emit_barrier(struct nir_to_llvm_context
*ctx
)
3852 /* SI only (thanks to a hw bug workaround):
3853 * The real barrier instruction isn’t needed, because an entire patch
3854 * always fits into a single wave.
3856 if (ctx
->options
->chip_class
== SI
&&
3857 ctx
->stage
== MESA_SHADER_TESS_CTRL
) {
3858 ac_build_waitcnt(&ctx
->ac
, LGKM_CNT
& VM_CNT
);
3861 ac_build_intrinsic(&ctx
->ac
, "llvm.amdgcn.s.barrier",
3862 ctx
->ac
.voidt
, NULL
, 0, AC_FUNC_ATTR_CONVERGENT
);
3865 static void emit_discard_if(struct ac_nir_context
*ctx
,
3866 const nir_intrinsic_instr
*instr
)
3870 cond
= LLVMBuildICmp(ctx
->ac
.builder
, LLVMIntEQ
,
3871 get_src(ctx
, instr
->src
[0]),
3873 ac_build_kill_if_false(&ctx
->ac
, cond
);
3877 visit_load_local_invocation_index(struct nir_to_llvm_context
*ctx
)
3879 LLVMValueRef result
;
3880 LLVMValueRef thread_id
= ac_get_thread_id(&ctx
->ac
);
3881 result
= LLVMBuildAnd(ctx
->builder
, ctx
->tg_size
,
3882 LLVMConstInt(ctx
->ac
.i32
, 0xfc0, false), "");
3884 return LLVMBuildAdd(ctx
->builder
, result
, thread_id
, "");
3887 static LLVMValueRef
visit_var_atomic(struct nir_to_llvm_context
*ctx
,
3888 const nir_intrinsic_instr
*instr
)
3890 LLVMValueRef ptr
, result
;
3891 LLVMValueRef src
= get_src(ctx
->nir
, instr
->src
[0]);
3892 ptr
= build_gep_for_deref(ctx
->nir
, instr
->variables
[0]);
3894 if (instr
->intrinsic
== nir_intrinsic_var_atomic_comp_swap
) {
3895 LLVMValueRef src1
= get_src(ctx
->nir
, instr
->src
[1]);
3896 result
= LLVMBuildAtomicCmpXchg(ctx
->builder
,
3898 LLVMAtomicOrderingSequentiallyConsistent
,
3899 LLVMAtomicOrderingSequentiallyConsistent
,
3902 LLVMAtomicRMWBinOp op
;
3903 switch (instr
->intrinsic
) {
3904 case nir_intrinsic_var_atomic_add
:
3905 op
= LLVMAtomicRMWBinOpAdd
;
3907 case nir_intrinsic_var_atomic_umin
:
3908 op
= LLVMAtomicRMWBinOpUMin
;
3910 case nir_intrinsic_var_atomic_umax
:
3911 op
= LLVMAtomicRMWBinOpUMax
;
3913 case nir_intrinsic_var_atomic_imin
:
3914 op
= LLVMAtomicRMWBinOpMin
;
3916 case nir_intrinsic_var_atomic_imax
:
3917 op
= LLVMAtomicRMWBinOpMax
;
3919 case nir_intrinsic_var_atomic_and
:
3920 op
= LLVMAtomicRMWBinOpAnd
;
3922 case nir_intrinsic_var_atomic_or
:
3923 op
= LLVMAtomicRMWBinOpOr
;
3925 case nir_intrinsic_var_atomic_xor
:
3926 op
= LLVMAtomicRMWBinOpXor
;
3928 case nir_intrinsic_var_atomic_exchange
:
3929 op
= LLVMAtomicRMWBinOpXchg
;
3935 result
= LLVMBuildAtomicRMW(ctx
->builder
, op
, ptr
, ac_to_integer(&ctx
->ac
, src
),
3936 LLVMAtomicOrderingSequentiallyConsistent
,
3942 #define INTERP_CENTER 0
3943 #define INTERP_CENTROID 1
3944 #define INTERP_SAMPLE 2
3946 static LLVMValueRef
lookup_interp_param(struct nir_to_llvm_context
*ctx
,
3947 enum glsl_interp_mode interp
, unsigned location
)
3950 case INTERP_MODE_FLAT
:
3953 case INTERP_MODE_SMOOTH
:
3954 case INTERP_MODE_NONE
:
3955 if (location
== INTERP_CENTER
)
3956 return ctx
->persp_center
;
3957 else if (location
== INTERP_CENTROID
)
3958 return ctx
->persp_centroid
;
3959 else if (location
== INTERP_SAMPLE
)
3960 return ctx
->persp_sample
;
3962 case INTERP_MODE_NOPERSPECTIVE
:
3963 if (location
== INTERP_CENTER
)
3964 return ctx
->linear_center
;
3965 else if (location
== INTERP_CENTROID
)
3966 return ctx
->linear_centroid
;
3967 else if (location
== INTERP_SAMPLE
)
3968 return ctx
->linear_sample
;
3974 static LLVMValueRef
load_sample_position(struct nir_to_llvm_context
*ctx
,
3975 LLVMValueRef sample_id
)
3977 LLVMValueRef result
;
3978 LLVMValueRef ptr
= ac_build_gep0(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_PS_SAMPLE_POSITIONS
, false));
3980 ptr
= LLVMBuildBitCast(ctx
->builder
, ptr
,
3981 const_array(ctx
->ac
.v2f32
, 64), "");
3983 sample_id
= LLVMBuildAdd(ctx
->builder
, sample_id
, ctx
->sample_pos_offset
, "");
3984 result
= ac_build_load_invariant(&ctx
->ac
, ptr
, sample_id
);
3989 static LLVMValueRef
load_sample_pos(struct ac_nir_context
*ctx
)
3991 LLVMValueRef values
[2];
3993 values
[0] = emit_ffract(&ctx
->ac
, ctx
->abi
->frag_pos
[0]);
3994 values
[1] = emit_ffract(&ctx
->ac
, ctx
->abi
->frag_pos
[1]);
3995 return ac_build_gather_values(&ctx
->ac
, values
, 2);
3998 static LLVMValueRef
visit_interp(struct nir_to_llvm_context
*ctx
,
3999 const nir_intrinsic_instr
*instr
)
4001 LLVMValueRef result
[4];
4002 LLVMValueRef interp_param
, attr_number
;
4005 LLVMValueRef src_c0
= NULL
;
4006 LLVMValueRef src_c1
= NULL
;
4007 LLVMValueRef src0
= NULL
;
4008 int input_index
= instr
->variables
[0]->var
->data
.location
- VARYING_SLOT_VAR0
;
4009 switch (instr
->intrinsic
) {
4010 case nir_intrinsic_interp_var_at_centroid
:
4011 location
= INTERP_CENTROID
;
4013 case nir_intrinsic_interp_var_at_sample
:
4014 case nir_intrinsic_interp_var_at_offset
:
4015 location
= INTERP_CENTER
;
4016 src0
= get_src(ctx
->nir
, instr
->src
[0]);
4022 if (instr
->intrinsic
== nir_intrinsic_interp_var_at_offset
) {
4023 src_c0
= ac_to_float(&ctx
->ac
, LLVMBuildExtractElement(ctx
->builder
, src0
, ctx
->ac
.i32_0
, ""));
4024 src_c1
= ac_to_float(&ctx
->ac
, LLVMBuildExtractElement(ctx
->builder
, src0
, ctx
->ac
.i32_1
, ""));
4025 } else if (instr
->intrinsic
== nir_intrinsic_interp_var_at_sample
) {
4026 LLVMValueRef sample_position
;
4027 LLVMValueRef halfval
= LLVMConstReal(ctx
->ac
.f32
, 0.5f
);
4029 /* fetch sample ID */
4030 sample_position
= load_sample_position(ctx
, src0
);
4032 src_c0
= LLVMBuildExtractElement(ctx
->builder
, sample_position
, ctx
->ac
.i32_0
, "");
4033 src_c0
= LLVMBuildFSub(ctx
->builder
, src_c0
, halfval
, "");
4034 src_c1
= LLVMBuildExtractElement(ctx
->builder
, sample_position
, ctx
->ac
.i32_1
, "");
4035 src_c1
= LLVMBuildFSub(ctx
->builder
, src_c1
, halfval
, "");
4037 interp_param
= lookup_interp_param(ctx
, instr
->variables
[0]->var
->data
.interpolation
, location
);
4038 attr_number
= LLVMConstInt(ctx
->ac
.i32
, input_index
, false);
4040 if (location
== INTERP_CENTER
) {
4041 LLVMValueRef ij_out
[2];
4042 LLVMValueRef ddxy_out
= emit_ddxy_interp(ctx
->nir
, interp_param
);
4045 * take the I then J parameters, and the DDX/Y for it, and
4046 * calculate the IJ inputs for the interpolator.
4047 * temp1 = ddx * offset/sample.x + I;
4048 * interp_param.I = ddy * offset/sample.y + temp1;
4049 * temp1 = ddx * offset/sample.x + J;
4050 * interp_param.J = ddy * offset/sample.y + temp1;
4052 for (unsigned i
= 0; i
< 2; i
++) {
4053 LLVMValueRef ix_ll
= LLVMConstInt(ctx
->ac
.i32
, i
, false);
4054 LLVMValueRef iy_ll
= LLVMConstInt(ctx
->ac
.i32
, i
+ 2, false);
4055 LLVMValueRef ddx_el
= LLVMBuildExtractElement(ctx
->builder
,
4056 ddxy_out
, ix_ll
, "");
4057 LLVMValueRef ddy_el
= LLVMBuildExtractElement(ctx
->builder
,
4058 ddxy_out
, iy_ll
, "");
4059 LLVMValueRef interp_el
= LLVMBuildExtractElement(ctx
->builder
,
4060 interp_param
, ix_ll
, "");
4061 LLVMValueRef temp1
, temp2
;
4063 interp_el
= LLVMBuildBitCast(ctx
->builder
, interp_el
,
4066 temp1
= LLVMBuildFMul(ctx
->builder
, ddx_el
, src_c0
, "");
4067 temp1
= LLVMBuildFAdd(ctx
->builder
, temp1
, interp_el
, "");
4069 temp2
= LLVMBuildFMul(ctx
->builder
, ddy_el
, src_c1
, "");
4070 temp2
= LLVMBuildFAdd(ctx
->builder
, temp2
, temp1
, "");
4072 ij_out
[i
] = LLVMBuildBitCast(ctx
->builder
,
4073 temp2
, ctx
->ac
.i32
, "");
4075 interp_param
= ac_build_gather_values(&ctx
->ac
, ij_out
, 2);
4079 for (chan
= 0; chan
< 4; chan
++) {
4080 LLVMValueRef llvm_chan
= LLVMConstInt(ctx
->ac
.i32
, chan
, false);
4083 interp_param
= LLVMBuildBitCast(ctx
->builder
,
4084 interp_param
, ctx
->ac
.v2f32
, "");
4085 LLVMValueRef i
= LLVMBuildExtractElement(
4086 ctx
->builder
, interp_param
, ctx
->ac
.i32_0
, "");
4087 LLVMValueRef j
= LLVMBuildExtractElement(
4088 ctx
->builder
, interp_param
, ctx
->ac
.i32_1
, "");
4090 result
[chan
] = ac_build_fs_interp(&ctx
->ac
,
4091 llvm_chan
, attr_number
,
4092 ctx
->prim_mask
, i
, j
);
4094 result
[chan
] = ac_build_fs_interp_mov(&ctx
->ac
,
4095 LLVMConstInt(ctx
->ac
.i32
, 2, false),
4096 llvm_chan
, attr_number
,
4100 return ac_build_varying_gather_values(&ctx
->ac
, result
, instr
->num_components
,
4101 instr
->variables
[0]->var
->data
.location_frac
);
4105 visit_emit_vertex(struct ac_shader_abi
*abi
, unsigned stream
, LLVMValueRef
*addrs
)
4107 LLVMValueRef gs_next_vertex
;
4108 LLVMValueRef can_emit
;
4110 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
4112 /* Write vertex attribute values to GSVS ring */
4113 gs_next_vertex
= LLVMBuildLoad(ctx
->builder
,
4114 ctx
->gs_next_vertex
,
4117 /* If this thread has already emitted the declared maximum number of
4118 * vertices, kill it: excessive vertex emissions are not supposed to
4119 * have any effect, and GS threads have no externally observable
4120 * effects other than emitting vertices.
4122 can_emit
= LLVMBuildICmp(ctx
->builder
, LLVMIntULT
, gs_next_vertex
,
4123 LLVMConstInt(ctx
->ac
.i32
, ctx
->gs_max_out_vertices
, false), "");
4124 ac_build_kill_if_false(&ctx
->ac
, can_emit
);
4126 /* loop num outputs */
4128 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
4129 LLVMValueRef
*out_ptr
= &addrs
[i
* 4];
4134 if (!(ctx
->output_mask
& (1ull << i
)))
4137 if (i
== VARYING_SLOT_CLIP_DIST0
) {
4138 /* pack clip and cull into a single set of slots */
4139 length
= ctx
->num_output_clips
+ ctx
->num_output_culls
;
4143 for (unsigned j
= 0; j
< length
; j
++) {
4144 LLVMValueRef out_val
= LLVMBuildLoad(ctx
->builder
,
4146 LLVMValueRef voffset
= LLVMConstInt(ctx
->ac
.i32
, (slot
* 4 + j
) * ctx
->gs_max_out_vertices
, false);
4147 voffset
= LLVMBuildAdd(ctx
->builder
, voffset
, gs_next_vertex
, "");
4148 voffset
= LLVMBuildMul(ctx
->builder
, voffset
, LLVMConstInt(ctx
->ac
.i32
, 4, false), "");
4150 out_val
= LLVMBuildBitCast(ctx
->builder
, out_val
, ctx
->ac
.i32
, "");
4152 ac_build_buffer_store_dword(&ctx
->ac
, ctx
->gsvs_ring
,
4154 voffset
, ctx
->gs2vs_offset
, 0,
4160 gs_next_vertex
= LLVMBuildAdd(ctx
->builder
, gs_next_vertex
,
4162 LLVMBuildStore(ctx
->builder
, gs_next_vertex
, ctx
->gs_next_vertex
);
4164 ac_build_sendmsg(&ctx
->ac
, AC_SENDMSG_GS_OP_EMIT
| AC_SENDMSG_GS
| (0 << 8), ctx
->gs_wave_id
);
4168 visit_end_primitive(struct nir_to_llvm_context
*ctx
,
4169 const nir_intrinsic_instr
*instr
)
4171 ac_build_sendmsg(&ctx
->ac
, AC_SENDMSG_GS_OP_CUT
| AC_SENDMSG_GS
| (0 << 8), ctx
->gs_wave_id
);
4175 visit_load_tess_coord(struct nir_to_llvm_context
*ctx
,
4176 const nir_intrinsic_instr
*instr
)
4178 LLVMValueRef coord
[4] = {
4185 if (ctx
->tes_primitive_mode
== GL_TRIANGLES
)
4186 coord
[2] = LLVMBuildFSub(ctx
->builder
, ctx
->ac
.f32_1
,
4187 LLVMBuildFAdd(ctx
->builder
, coord
[0], coord
[1], ""), "");
4189 LLVMValueRef result
= ac_build_gather_values(&ctx
->ac
, coord
, instr
->num_components
);
4190 return LLVMBuildBitCast(ctx
->builder
, result
,
4191 get_def_type(ctx
->nir
, &instr
->dest
.ssa
), "");
4194 static void visit_intrinsic(struct ac_nir_context
*ctx
,
4195 nir_intrinsic_instr
*instr
)
4197 LLVMValueRef result
= NULL
;
4199 switch (instr
->intrinsic
) {
4200 case nir_intrinsic_load_work_group_id
: {
4201 LLVMValueRef values
[3];
4203 for (int i
= 0; i
< 3; i
++) {
4204 values
[i
] = ctx
->nctx
->workgroup_ids
[i
] ?
4205 ctx
->nctx
->workgroup_ids
[i
] : ctx
->ac
.i32_0
;
4208 result
= ac_build_gather_values(&ctx
->ac
, values
, 3);
4211 case nir_intrinsic_load_base_vertex
: {
4212 result
= ctx
->abi
->base_vertex
;
4215 case nir_intrinsic_load_vertex_id_zero_base
: {
4216 result
= ctx
->abi
->vertex_id
;
4219 case nir_intrinsic_load_local_invocation_id
: {
4220 result
= ctx
->nctx
->local_invocation_ids
;
4223 case nir_intrinsic_load_base_instance
:
4224 result
= ctx
->abi
->start_instance
;
4226 case nir_intrinsic_load_draw_id
:
4227 result
= ctx
->abi
->draw_id
;
4229 case nir_intrinsic_load_view_index
:
4230 result
= ctx
->nctx
->view_index
? ctx
->nctx
->view_index
: ctx
->ac
.i32_0
;
4232 case nir_intrinsic_load_invocation_id
:
4233 if (ctx
->stage
== MESA_SHADER_TESS_CTRL
)
4234 result
= unpack_param(&ctx
->ac
, ctx
->nctx
->tcs_rel_ids
, 8, 5);
4236 result
= ctx
->abi
->gs_invocation_id
;
4238 case nir_intrinsic_load_primitive_id
:
4239 if (ctx
->stage
== MESA_SHADER_GEOMETRY
) {
4240 result
= ctx
->abi
->gs_prim_id
;
4241 } else if (ctx
->stage
== MESA_SHADER_TESS_CTRL
) {
4242 result
= ctx
->nctx
->tcs_patch_id
;
4243 } else if (ctx
->stage
== MESA_SHADER_TESS_EVAL
) {
4244 result
= ctx
->nctx
->tes_patch_id
;
4246 fprintf(stderr
, "Unknown primitive id intrinsic: %d", ctx
->stage
);
4248 case nir_intrinsic_load_sample_id
:
4249 result
= unpack_param(&ctx
->ac
, ctx
->abi
->ancillary
, 8, 4);
4251 case nir_intrinsic_load_sample_pos
:
4252 result
= load_sample_pos(ctx
);
4254 case nir_intrinsic_load_sample_mask_in
:
4255 result
= ctx
->abi
->sample_coverage
;
4257 case nir_intrinsic_load_frag_coord
: {
4258 LLVMValueRef values
[4] = {
4259 ctx
->abi
->frag_pos
[0],
4260 ctx
->abi
->frag_pos
[1],
4261 ctx
->abi
->frag_pos
[2],
4262 ac_build_fdiv(&ctx
->ac
, ctx
->ac
.f32_1
, ctx
->abi
->frag_pos
[3])
4264 result
= ac_build_gather_values(&ctx
->ac
, values
, 4);
4267 case nir_intrinsic_load_front_face
:
4268 result
= ctx
->abi
->front_face
;
4270 case nir_intrinsic_load_instance_id
:
4271 result
= ctx
->abi
->instance_id
;
4273 case nir_intrinsic_load_num_work_groups
:
4274 result
= ctx
->nctx
->num_work_groups
;
4276 case nir_intrinsic_load_local_invocation_index
:
4277 result
= visit_load_local_invocation_index(ctx
->nctx
);
4279 case nir_intrinsic_load_push_constant
:
4280 result
= visit_load_push_constant(ctx
->nctx
, instr
);
4282 case nir_intrinsic_vulkan_resource_index
:
4283 result
= visit_vulkan_resource_index(ctx
->nctx
, instr
);
4285 case nir_intrinsic_vulkan_resource_reindex
:
4286 result
= visit_vulkan_resource_reindex(ctx
->nctx
, instr
);
4288 case nir_intrinsic_store_ssbo
:
4289 visit_store_ssbo(ctx
, instr
);
4291 case nir_intrinsic_load_ssbo
:
4292 result
= visit_load_buffer(ctx
, instr
);
4294 case nir_intrinsic_ssbo_atomic_add
:
4295 case nir_intrinsic_ssbo_atomic_imin
:
4296 case nir_intrinsic_ssbo_atomic_umin
:
4297 case nir_intrinsic_ssbo_atomic_imax
:
4298 case nir_intrinsic_ssbo_atomic_umax
:
4299 case nir_intrinsic_ssbo_atomic_and
:
4300 case nir_intrinsic_ssbo_atomic_or
:
4301 case nir_intrinsic_ssbo_atomic_xor
:
4302 case nir_intrinsic_ssbo_atomic_exchange
:
4303 case nir_intrinsic_ssbo_atomic_comp_swap
:
4304 result
= visit_atomic_ssbo(ctx
, instr
);
4306 case nir_intrinsic_load_ubo
:
4307 result
= visit_load_ubo_buffer(ctx
, instr
);
4309 case nir_intrinsic_get_buffer_size
:
4310 result
= visit_get_buffer_size(ctx
, instr
);
4312 case nir_intrinsic_load_var
:
4313 result
= visit_load_var(ctx
, instr
);
4315 case nir_intrinsic_store_var
:
4316 visit_store_var(ctx
, instr
);
4318 case nir_intrinsic_image_load
:
4319 result
= visit_image_load(ctx
, instr
);
4321 case nir_intrinsic_image_store
:
4322 visit_image_store(ctx
, instr
);
4324 case nir_intrinsic_image_atomic_add
:
4325 case nir_intrinsic_image_atomic_min
:
4326 case nir_intrinsic_image_atomic_max
:
4327 case nir_intrinsic_image_atomic_and
:
4328 case nir_intrinsic_image_atomic_or
:
4329 case nir_intrinsic_image_atomic_xor
:
4330 case nir_intrinsic_image_atomic_exchange
:
4331 case nir_intrinsic_image_atomic_comp_swap
:
4332 result
= visit_image_atomic(ctx
, instr
);
4334 case nir_intrinsic_image_size
:
4335 result
= visit_image_size(ctx
, instr
);
4337 case nir_intrinsic_discard
:
4338 ac_build_intrinsic(&ctx
->ac
, "llvm.AMDGPU.kilp",
4339 LLVMVoidTypeInContext(ctx
->ac
.context
),
4340 NULL
, 0, AC_FUNC_ATTR_LEGACY
);
4342 case nir_intrinsic_discard_if
:
4343 emit_discard_if(ctx
, instr
);
4345 case nir_intrinsic_memory_barrier
:
4346 case nir_intrinsic_group_memory_barrier
:
4347 case nir_intrinsic_memory_barrier_atomic_counter
:
4348 case nir_intrinsic_memory_barrier_buffer
:
4349 case nir_intrinsic_memory_barrier_image
:
4350 case nir_intrinsic_memory_barrier_shared
:
4351 emit_membar(ctx
->nctx
, instr
);
4353 case nir_intrinsic_barrier
:
4354 emit_barrier(ctx
->nctx
);
4356 case nir_intrinsic_var_atomic_add
:
4357 case nir_intrinsic_var_atomic_imin
:
4358 case nir_intrinsic_var_atomic_umin
:
4359 case nir_intrinsic_var_atomic_imax
:
4360 case nir_intrinsic_var_atomic_umax
:
4361 case nir_intrinsic_var_atomic_and
:
4362 case nir_intrinsic_var_atomic_or
:
4363 case nir_intrinsic_var_atomic_xor
:
4364 case nir_intrinsic_var_atomic_exchange
:
4365 case nir_intrinsic_var_atomic_comp_swap
:
4366 result
= visit_var_atomic(ctx
->nctx
, instr
);
4368 case nir_intrinsic_interp_var_at_centroid
:
4369 case nir_intrinsic_interp_var_at_sample
:
4370 case nir_intrinsic_interp_var_at_offset
:
4371 result
= visit_interp(ctx
->nctx
, instr
);
4373 case nir_intrinsic_emit_vertex
:
4374 assert(instr
->const_index
[0] == 0);
4375 ctx
->abi
->emit_vertex(ctx
->abi
, 0, ctx
->outputs
);
4377 case nir_intrinsic_end_primitive
:
4378 visit_end_primitive(ctx
->nctx
, instr
);
4380 case nir_intrinsic_load_tess_coord
:
4381 result
= visit_load_tess_coord(ctx
->nctx
, instr
);
4383 case nir_intrinsic_load_patch_vertices_in
:
4384 result
= LLVMConstInt(ctx
->ac
.i32
, ctx
->nctx
->options
->key
.tcs
.input_vertices
, false);
4387 fprintf(stderr
, "Unknown intrinsic: ");
4388 nir_print_instr(&instr
->instr
, stderr
);
4389 fprintf(stderr
, "\n");
4393 _mesa_hash_table_insert(ctx
->defs
, &instr
->dest
.ssa
, result
);
4397 static LLVMValueRef
radv_load_ssbo(struct ac_shader_abi
*abi
,
4398 LLVMValueRef buffer_ptr
, bool write
)
4400 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
4402 if (write
&& ctx
->stage
== MESA_SHADER_FRAGMENT
)
4403 ctx
->shader_info
->fs
.writes_memory
= true;
4405 return LLVMBuildLoad(ctx
->builder
, buffer_ptr
, "");
4408 static LLVMValueRef
radv_load_ubo(struct ac_shader_abi
*abi
, LLVMValueRef buffer_ptr
)
4410 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
4412 return LLVMBuildLoad(ctx
->builder
, buffer_ptr
, "");
4415 static LLVMValueRef
radv_get_sampler_desc(struct ac_shader_abi
*abi
,
4416 unsigned descriptor_set
,
4417 unsigned base_index
,
4418 unsigned constant_index
,
4420 enum ac_descriptor_type desc_type
,
4421 bool image
, bool write
)
4423 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
4424 LLVMValueRef list
= ctx
->descriptor_sets
[descriptor_set
];
4425 struct radv_descriptor_set_layout
*layout
= ctx
->options
->layout
->set
[descriptor_set
].layout
;
4426 struct radv_descriptor_set_binding_layout
*binding
= layout
->binding
+ base_index
;
4427 unsigned offset
= binding
->offset
;
4428 unsigned stride
= binding
->size
;
4430 LLVMBuilderRef builder
= ctx
->builder
;
4433 assert(base_index
< layout
->binding_count
);
4435 if (write
&& ctx
->stage
== MESA_SHADER_FRAGMENT
)
4436 ctx
->shader_info
->fs
.writes_memory
= true;
4438 switch (desc_type
) {
4440 type
= ctx
->ac
.v8i32
;
4444 type
= ctx
->ac
.v8i32
;
4448 case AC_DESC_SAMPLER
:
4449 type
= ctx
->ac
.v4i32
;
4450 if (binding
->type
== VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER
)
4455 case AC_DESC_BUFFER
:
4456 type
= ctx
->ac
.v4i32
;
4460 unreachable("invalid desc_type\n");
4463 offset
+= constant_index
* stride
;
4465 if (desc_type
== AC_DESC_SAMPLER
&& binding
->immutable_samplers_offset
&&
4466 (!index
|| binding
->immutable_samplers_equal
)) {
4467 if (binding
->immutable_samplers_equal
)
4470 const uint32_t *samplers
= radv_immutable_samplers(layout
, binding
);
4472 LLVMValueRef constants
[] = {
4473 LLVMConstInt(ctx
->ac
.i32
, samplers
[constant_index
* 4 + 0], 0),
4474 LLVMConstInt(ctx
->ac
.i32
, samplers
[constant_index
* 4 + 1], 0),
4475 LLVMConstInt(ctx
->ac
.i32
, samplers
[constant_index
* 4 + 2], 0),
4476 LLVMConstInt(ctx
->ac
.i32
, samplers
[constant_index
* 4 + 3], 0),
4478 return ac_build_gather_values(&ctx
->ac
, constants
, 4);
4481 assert(stride
% type_size
== 0);
4484 index
= ctx
->ac
.i32_0
;
4486 index
= LLVMBuildMul(builder
, index
, LLVMConstInt(ctx
->ac
.i32
, stride
/ type_size
, 0), "");
4488 list
= ac_build_gep0(&ctx
->ac
, list
, LLVMConstInt(ctx
->ac
.i32
, offset
, 0));
4489 list
= LLVMBuildPointerCast(builder
, list
, const_array(type
, 0), "");
4491 return ac_build_load_to_sgpr(&ctx
->ac
, list
, index
);
4494 static LLVMValueRef
get_sampler_desc(struct ac_nir_context
*ctx
,
4495 const nir_deref_var
*deref
,
4496 enum ac_descriptor_type desc_type
,
4497 const nir_tex_instr
*tex_instr
,
4498 bool image
, bool write
)
4500 LLVMValueRef index
= NULL
;
4501 unsigned constant_index
= 0;
4502 unsigned descriptor_set
;
4503 unsigned base_index
;
4506 assert(tex_instr
&& !image
);
4508 base_index
= tex_instr
->sampler_index
;
4510 const nir_deref
*tail
= &deref
->deref
;
4511 while (tail
->child
) {
4512 const nir_deref_array
*child
= nir_deref_as_array(tail
->child
);
4513 unsigned array_size
= glsl_get_aoa_size(tail
->child
->type
);
4518 assert(child
->deref_array_type
!= nir_deref_array_type_wildcard
);
4520 if (child
->deref_array_type
== nir_deref_array_type_indirect
) {
4521 LLVMValueRef indirect
= get_src(ctx
, child
->indirect
);
4523 indirect
= LLVMBuildMul(ctx
->ac
.builder
, indirect
,
4524 LLVMConstInt(ctx
->ac
.i32
, array_size
, false), "");
4529 index
= LLVMBuildAdd(ctx
->ac
.builder
, index
, indirect
, "");
4532 constant_index
+= child
->base_offset
* array_size
;
4534 tail
= &child
->deref
;
4536 descriptor_set
= deref
->var
->data
.descriptor_set
;
4537 base_index
= deref
->var
->data
.binding
;
4540 return ctx
->abi
->load_sampler_desc(ctx
->abi
,
4543 constant_index
, index
,
4544 desc_type
, image
, write
);
4547 static void set_tex_fetch_args(struct ac_llvm_context
*ctx
,
4548 struct ac_image_args
*args
,
4549 const nir_tex_instr
*instr
,
4551 LLVMValueRef res_ptr
, LLVMValueRef samp_ptr
,
4552 LLVMValueRef
*param
, unsigned count
,
4555 unsigned is_rect
= 0;
4556 bool da
= instr
->is_array
|| instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
;
4558 if (op
== nir_texop_lod
)
4560 /* Pad to power of two vector */
4561 while (count
< util_next_power_of_two(count
))
4562 param
[count
++] = LLVMGetUndef(ctx
->i32
);
4565 args
->addr
= ac_build_gather_values(ctx
, param
, count
);
4567 args
->addr
= param
[0];
4569 args
->resource
= res_ptr
;
4570 args
->sampler
= samp_ptr
;
4572 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_BUF
&& op
== nir_texop_txf
) {
4573 args
->addr
= param
[0];
4577 args
->dmask
= dmask
;
4578 args
->unorm
= is_rect
;
4582 /* Disable anisotropic filtering if BASE_LEVEL == LAST_LEVEL.
4585 * If BASE_LEVEL == LAST_LEVEL, the shader must disable anisotropic
4586 * filtering manually. The driver sets img7 to a mask clearing
4587 * MAX_ANISO_RATIO if BASE_LEVEL == LAST_LEVEL. The shader must do:
4588 * s_and_b32 samp0, samp0, img7
4591 * The ANISO_OVERRIDE sampler field enables this fix in TA.
4593 static LLVMValueRef
sici_fix_sampler_aniso(struct ac_nir_context
*ctx
,
4594 LLVMValueRef res
, LLVMValueRef samp
)
4596 LLVMBuilderRef builder
= ctx
->ac
.builder
;
4597 LLVMValueRef img7
, samp0
;
4599 if (ctx
->ac
.chip_class
>= VI
)
4602 img7
= LLVMBuildExtractElement(builder
, res
,
4603 LLVMConstInt(ctx
->ac
.i32
, 7, 0), "");
4604 samp0
= LLVMBuildExtractElement(builder
, samp
,
4605 LLVMConstInt(ctx
->ac
.i32
, 0, 0), "");
4606 samp0
= LLVMBuildAnd(builder
, samp0
, img7
, "");
4607 return LLVMBuildInsertElement(builder
, samp
, samp0
,
4608 LLVMConstInt(ctx
->ac
.i32
, 0, 0), "");
4611 static void tex_fetch_ptrs(struct ac_nir_context
*ctx
,
4612 nir_tex_instr
*instr
,
4613 LLVMValueRef
*res_ptr
, LLVMValueRef
*samp_ptr
,
4614 LLVMValueRef
*fmask_ptr
)
4616 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_BUF
)
4617 *res_ptr
= get_sampler_desc(ctx
, instr
->texture
, AC_DESC_BUFFER
, instr
, false, false);
4619 *res_ptr
= get_sampler_desc(ctx
, instr
->texture
, AC_DESC_IMAGE
, instr
, false, false);
4622 *samp_ptr
= get_sampler_desc(ctx
, instr
->sampler
, AC_DESC_SAMPLER
, instr
, false, false);
4624 *samp_ptr
= get_sampler_desc(ctx
, instr
->texture
, AC_DESC_SAMPLER
, instr
, false, false);
4625 if (instr
->sampler_dim
< GLSL_SAMPLER_DIM_RECT
)
4626 *samp_ptr
= sici_fix_sampler_aniso(ctx
, *res_ptr
, *samp_ptr
);
4628 if (fmask_ptr
&& !instr
->sampler
&& (instr
->op
== nir_texop_txf_ms
||
4629 instr
->op
== nir_texop_samples_identical
))
4630 *fmask_ptr
= get_sampler_desc(ctx
, instr
->texture
, AC_DESC_FMASK
, instr
, false, false);
4633 static LLVMValueRef
apply_round_slice(struct ac_llvm_context
*ctx
,
4636 coord
= ac_to_float(ctx
, coord
);
4637 coord
= ac_build_intrinsic(ctx
, "llvm.rint.f32", ctx
->f32
, &coord
, 1, 0);
4638 coord
= ac_to_integer(ctx
, coord
);
4642 static void visit_tex(struct ac_nir_context
*ctx
, nir_tex_instr
*instr
)
4644 LLVMValueRef result
= NULL
;
4645 struct ac_image_args args
= { 0 };
4646 unsigned dmask
= 0xf;
4647 LLVMValueRef address
[16];
4648 LLVMValueRef coords
[5];
4649 LLVMValueRef coord
= NULL
, lod
= NULL
, comparator
= NULL
;
4650 LLVMValueRef bias
= NULL
, offsets
= NULL
;
4651 LLVMValueRef res_ptr
, samp_ptr
, fmask_ptr
= NULL
, sample_index
= NULL
;
4652 LLVMValueRef ddx
= NULL
, ddy
= NULL
;
4653 LLVMValueRef derivs
[6];
4654 unsigned chan
, count
= 0;
4655 unsigned const_src
= 0, num_deriv_comp
= 0;
4656 bool lod_is_zero
= false;
4658 tex_fetch_ptrs(ctx
, instr
, &res_ptr
, &samp_ptr
, &fmask_ptr
);
4660 for (unsigned i
= 0; i
< instr
->num_srcs
; i
++) {
4661 switch (instr
->src
[i
].src_type
) {
4662 case nir_tex_src_coord
:
4663 coord
= get_src(ctx
, instr
->src
[i
].src
);
4665 case nir_tex_src_projector
:
4667 case nir_tex_src_comparator
:
4668 comparator
= get_src(ctx
, instr
->src
[i
].src
);
4670 case nir_tex_src_offset
:
4671 offsets
= get_src(ctx
, instr
->src
[i
].src
);
4674 case nir_tex_src_bias
:
4675 bias
= get_src(ctx
, instr
->src
[i
].src
);
4677 case nir_tex_src_lod
: {
4678 nir_const_value
*val
= nir_src_as_const_value(instr
->src
[i
].src
);
4680 if (val
&& val
->i32
[0] == 0)
4682 lod
= get_src(ctx
, instr
->src
[i
].src
);
4685 case nir_tex_src_ms_index
:
4686 sample_index
= get_src(ctx
, instr
->src
[i
].src
);
4688 case nir_tex_src_ms_mcs
:
4690 case nir_tex_src_ddx
:
4691 ddx
= get_src(ctx
, instr
->src
[i
].src
);
4692 num_deriv_comp
= instr
->src
[i
].src
.ssa
->num_components
;
4694 case nir_tex_src_ddy
:
4695 ddy
= get_src(ctx
, instr
->src
[i
].src
);
4697 case nir_tex_src_texture_offset
:
4698 case nir_tex_src_sampler_offset
:
4699 case nir_tex_src_plane
:
4705 if (instr
->op
== nir_texop_txs
&& instr
->sampler_dim
== GLSL_SAMPLER_DIM_BUF
) {
4706 result
= get_buffer_size(ctx
, res_ptr
, true);
4710 if (instr
->op
== nir_texop_texture_samples
) {
4711 LLVMValueRef res
, samples
, is_msaa
;
4712 res
= LLVMBuildBitCast(ctx
->ac
.builder
, res_ptr
, ctx
->ac
.v8i32
, "");
4713 samples
= LLVMBuildExtractElement(ctx
->ac
.builder
, res
,
4714 LLVMConstInt(ctx
->ac
.i32
, 3, false), "");
4715 is_msaa
= LLVMBuildLShr(ctx
->ac
.builder
, samples
,
4716 LLVMConstInt(ctx
->ac
.i32
, 28, false), "");
4717 is_msaa
= LLVMBuildAnd(ctx
->ac
.builder
, is_msaa
,
4718 LLVMConstInt(ctx
->ac
.i32
, 0xe, false), "");
4719 is_msaa
= LLVMBuildICmp(ctx
->ac
.builder
, LLVMIntEQ
, is_msaa
,
4720 LLVMConstInt(ctx
->ac
.i32
, 0xe, false), "");
4722 samples
= LLVMBuildLShr(ctx
->ac
.builder
, samples
,
4723 LLVMConstInt(ctx
->ac
.i32
, 16, false), "");
4724 samples
= LLVMBuildAnd(ctx
->ac
.builder
, samples
,
4725 LLVMConstInt(ctx
->ac
.i32
, 0xf, false), "");
4726 samples
= LLVMBuildShl(ctx
->ac
.builder
, ctx
->ac
.i32_1
,
4728 samples
= LLVMBuildSelect(ctx
->ac
.builder
, is_msaa
, samples
,
4735 for (chan
= 0; chan
< instr
->coord_components
; chan
++)
4736 coords
[chan
] = llvm_extract_elem(&ctx
->ac
, coord
, chan
);
4738 if (offsets
&& instr
->op
!= nir_texop_txf
) {
4739 LLVMValueRef offset
[3], pack
;
4740 for (chan
= 0; chan
< 3; ++chan
)
4741 offset
[chan
] = ctx
->ac
.i32_0
;
4744 for (chan
= 0; chan
< get_llvm_num_components(offsets
); chan
++) {
4745 offset
[chan
] = llvm_extract_elem(&ctx
->ac
, offsets
, chan
);
4746 offset
[chan
] = LLVMBuildAnd(ctx
->ac
.builder
, offset
[chan
],
4747 LLVMConstInt(ctx
->ac
.i32
, 0x3f, false), "");
4749 offset
[chan
] = LLVMBuildShl(ctx
->ac
.builder
, offset
[chan
],
4750 LLVMConstInt(ctx
->ac
.i32
, chan
* 8, false), "");
4752 pack
= LLVMBuildOr(ctx
->ac
.builder
, offset
[0], offset
[1], "");
4753 pack
= LLVMBuildOr(ctx
->ac
.builder
, pack
, offset
[2], "");
4754 address
[count
++] = pack
;
4757 /* pack LOD bias value */
4758 if (instr
->op
== nir_texop_txb
&& bias
) {
4759 address
[count
++] = bias
;
4762 /* Pack depth comparison value */
4763 if (instr
->is_shadow
&& comparator
) {
4764 LLVMValueRef z
= ac_to_float(&ctx
->ac
,
4765 llvm_extract_elem(&ctx
->ac
, comparator
, 0));
4767 /* TC-compatible HTILE on radeonsi promotes Z16 and Z24 to Z32_FLOAT,
4768 * so the depth comparison value isn't clamped for Z16 and
4769 * Z24 anymore. Do it manually here.
4771 * It's unnecessary if the original texture format was
4772 * Z32_FLOAT, but we don't know that here.
4774 if (ctx
->ac
.chip_class
== VI
&& ctx
->abi
->clamp_shadow_reference
)
4775 z
= ac_build_clamp(&ctx
->ac
, z
);
4777 address
[count
++] = z
;
4780 /* pack derivatives */
4782 int num_src_deriv_channels
, num_dest_deriv_channels
;
4783 switch (instr
->sampler_dim
) {
4784 case GLSL_SAMPLER_DIM_3D
:
4785 case GLSL_SAMPLER_DIM_CUBE
:
4787 num_src_deriv_channels
= 3;
4788 num_dest_deriv_channels
= 3;
4790 case GLSL_SAMPLER_DIM_2D
:
4792 num_src_deriv_channels
= 2;
4793 num_dest_deriv_channels
= 2;
4796 case GLSL_SAMPLER_DIM_1D
:
4797 num_src_deriv_channels
= 1;
4798 if (ctx
->ac
.chip_class
>= GFX9
) {
4799 num_dest_deriv_channels
= 2;
4802 num_dest_deriv_channels
= 1;
4808 for (unsigned i
= 0; i
< num_src_deriv_channels
; i
++) {
4809 derivs
[i
] = ac_to_float(&ctx
->ac
, llvm_extract_elem(&ctx
->ac
, ddx
, i
));
4810 derivs
[num_dest_deriv_channels
+ i
] = ac_to_float(&ctx
->ac
, llvm_extract_elem(&ctx
->ac
, ddy
, i
));
4812 for (unsigned i
= num_src_deriv_channels
; i
< num_dest_deriv_channels
; i
++) {
4813 derivs
[i
] = ctx
->ac
.f32_0
;
4814 derivs
[num_dest_deriv_channels
+ i
] = ctx
->ac
.f32_0
;
4818 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
&& coord
) {
4819 for (chan
= 0; chan
< instr
->coord_components
; chan
++)
4820 coords
[chan
] = ac_to_float(&ctx
->ac
, coords
[chan
]);
4821 if (instr
->coord_components
== 3)
4822 coords
[3] = LLVMGetUndef(ctx
->ac
.f32
);
4823 ac_prepare_cube_coords(&ctx
->ac
,
4824 instr
->op
== nir_texop_txd
, instr
->is_array
,
4825 instr
->op
== nir_texop_lod
, coords
, derivs
);
4831 for (unsigned i
= 0; i
< num_deriv_comp
* 2; i
++)
4832 address
[count
++] = derivs
[i
];
4835 /* Pack texture coordinates */
4837 address
[count
++] = coords
[0];
4838 if (instr
->coord_components
> 1) {
4839 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_1D
&& instr
->is_array
&& instr
->op
!= nir_texop_txf
) {
4840 coords
[1] = apply_round_slice(&ctx
->ac
, coords
[1]);
4842 address
[count
++] = coords
[1];
4844 if (instr
->coord_components
> 2) {
4845 /* This seems like a bit of a hack - but it passes Vulkan CTS with it */
4846 if (instr
->sampler_dim
!= GLSL_SAMPLER_DIM_3D
&&
4847 instr
->sampler_dim
!= GLSL_SAMPLER_DIM_CUBE
&&
4848 instr
->op
!= nir_texop_txf
) {
4849 coords
[2] = apply_round_slice(&ctx
->ac
, coords
[2]);
4851 address
[count
++] = coords
[2];
4854 if (ctx
->ac
.chip_class
>= GFX9
) {
4855 LLVMValueRef filler
;
4856 if (instr
->op
== nir_texop_txf
)
4857 filler
= ctx
->ac
.i32_0
;
4859 filler
= LLVMConstReal(ctx
->ac
.f32
, 0.5);
4861 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_1D
) {
4862 /* No nir_texop_lod, because it does not take a slice
4863 * even with array textures. */
4864 if (instr
->is_array
&& instr
->op
!= nir_texop_lod
) {
4865 address
[count
] = address
[count
- 1];
4866 address
[count
- 1] = filler
;
4869 address
[count
++] = filler
;
4875 if (lod
&& ((instr
->op
== nir_texop_txl
&& !lod_is_zero
) ||
4876 instr
->op
== nir_texop_txf
)) {
4877 address
[count
++] = lod
;
4878 } else if (instr
->op
== nir_texop_txf_ms
&& sample_index
) {
4879 address
[count
++] = sample_index
;
4880 } else if(instr
->op
== nir_texop_txs
) {
4883 address
[count
++] = lod
;
4885 address
[count
++] = ctx
->ac
.i32_0
;
4888 for (chan
= 0; chan
< count
; chan
++) {
4889 address
[chan
] = LLVMBuildBitCast(ctx
->ac
.builder
,
4890 address
[chan
], ctx
->ac
.i32
, "");
4893 if (instr
->op
== nir_texop_samples_identical
) {
4894 LLVMValueRef txf_address
[4];
4895 struct ac_image_args txf_args
= { 0 };
4896 unsigned txf_count
= count
;
4897 memcpy(txf_address
, address
, sizeof(txf_address
));
4899 if (!instr
->is_array
)
4900 txf_address
[2] = ctx
->ac
.i32_0
;
4901 txf_address
[3] = ctx
->ac
.i32_0
;
4903 set_tex_fetch_args(&ctx
->ac
, &txf_args
, instr
, nir_texop_txf
,
4905 txf_address
, txf_count
, 0xf);
4907 result
= build_tex_intrinsic(ctx
, instr
, false, &txf_args
);
4909 result
= LLVMBuildExtractElement(ctx
->ac
.builder
, result
, ctx
->ac
.i32_0
, "");
4910 result
= emit_int_cmp(&ctx
->ac
, LLVMIntEQ
, result
, ctx
->ac
.i32_0
);
4914 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_MS
&&
4915 instr
->op
!= nir_texop_txs
) {
4916 unsigned sample_chan
= instr
->is_array
? 3 : 2;
4917 address
[sample_chan
] = adjust_sample_index_using_fmask(&ctx
->ac
,
4920 instr
->is_array
? address
[2] : NULL
,
4921 address
[sample_chan
],
4925 if (offsets
&& instr
->op
== nir_texop_txf
) {
4926 nir_const_value
*const_offset
=
4927 nir_src_as_const_value(instr
->src
[const_src
].src
);
4928 int num_offsets
= instr
->src
[const_src
].src
.ssa
->num_components
;
4929 assert(const_offset
);
4930 num_offsets
= MIN2(num_offsets
, instr
->coord_components
);
4931 if (num_offsets
> 2)
4932 address
[2] = LLVMBuildAdd(ctx
->ac
.builder
,
4933 address
[2], LLVMConstInt(ctx
->ac
.i32
, const_offset
->i32
[2], false), "");
4934 if (num_offsets
> 1)
4935 address
[1] = LLVMBuildAdd(ctx
->ac
.builder
,
4936 address
[1], LLVMConstInt(ctx
->ac
.i32
, const_offset
->i32
[1], false), "");
4937 address
[0] = LLVMBuildAdd(ctx
->ac
.builder
,
4938 address
[0], LLVMConstInt(ctx
->ac
.i32
, const_offset
->i32
[0], false), "");
4942 /* TODO TG4 support */
4943 if (instr
->op
== nir_texop_tg4
) {
4944 if (instr
->is_shadow
)
4947 dmask
= 1 << instr
->component
;
4949 set_tex_fetch_args(&ctx
->ac
, &args
, instr
, instr
->op
,
4950 res_ptr
, samp_ptr
, address
, count
, dmask
);
4952 result
= build_tex_intrinsic(ctx
, instr
, lod_is_zero
, &args
);
4954 if (instr
->op
== nir_texop_query_levels
)
4955 result
= LLVMBuildExtractElement(ctx
->ac
.builder
, result
, LLVMConstInt(ctx
->ac
.i32
, 3, false), "");
4956 else if (instr
->is_shadow
&& instr
->is_new_style_shadow
&&
4957 instr
->op
!= nir_texop_txs
&& instr
->op
!= nir_texop_lod
&&
4958 instr
->op
!= nir_texop_tg4
)
4959 result
= LLVMBuildExtractElement(ctx
->ac
.builder
, result
, ctx
->ac
.i32_0
, "");
4960 else if (instr
->op
== nir_texop_txs
&&
4961 instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
&&
4963 LLVMValueRef two
= LLVMConstInt(ctx
->ac
.i32
, 2, false);
4964 LLVMValueRef six
= LLVMConstInt(ctx
->ac
.i32
, 6, false);
4965 LLVMValueRef z
= LLVMBuildExtractElement(ctx
->ac
.builder
, result
, two
, "");
4966 z
= LLVMBuildSDiv(ctx
->ac
.builder
, z
, six
, "");
4967 result
= LLVMBuildInsertElement(ctx
->ac
.builder
, result
, z
, two
, "");
4968 } else if (ctx
->ac
.chip_class
>= GFX9
&&
4969 instr
->op
== nir_texop_txs
&&
4970 instr
->sampler_dim
== GLSL_SAMPLER_DIM_1D
&&
4972 LLVMValueRef two
= LLVMConstInt(ctx
->ac
.i32
, 2, false);
4973 LLVMValueRef layers
= LLVMBuildExtractElement(ctx
->ac
.builder
, result
, two
, "");
4974 result
= LLVMBuildInsertElement(ctx
->ac
.builder
, result
, layers
,
4976 } else if (instr
->dest
.ssa
.num_components
!= 4)
4977 result
= trim_vector(&ctx
->ac
, result
, instr
->dest
.ssa
.num_components
);
4981 assert(instr
->dest
.is_ssa
);
4982 result
= ac_to_integer(&ctx
->ac
, result
);
4983 _mesa_hash_table_insert(ctx
->defs
, &instr
->dest
.ssa
, result
);
4988 static void visit_phi(struct ac_nir_context
*ctx
, nir_phi_instr
*instr
)
4990 LLVMTypeRef type
= get_def_type(ctx
, &instr
->dest
.ssa
);
4991 LLVMValueRef result
= LLVMBuildPhi(ctx
->ac
.builder
, type
, "");
4993 _mesa_hash_table_insert(ctx
->defs
, &instr
->dest
.ssa
, result
);
4994 _mesa_hash_table_insert(ctx
->phis
, instr
, result
);
4997 static void visit_post_phi(struct ac_nir_context
*ctx
,
4998 nir_phi_instr
*instr
,
4999 LLVMValueRef llvm_phi
)
5001 nir_foreach_phi_src(src
, instr
) {
5002 LLVMBasicBlockRef block
= get_block(ctx
, src
->pred
);
5003 LLVMValueRef llvm_src
= get_src(ctx
, src
->src
);
5005 LLVMAddIncoming(llvm_phi
, &llvm_src
, &block
, 1);
5009 static void phi_post_pass(struct ac_nir_context
*ctx
)
5011 struct hash_entry
*entry
;
5012 hash_table_foreach(ctx
->phis
, entry
) {
5013 visit_post_phi(ctx
, (nir_phi_instr
*)entry
->key
,
5014 (LLVMValueRef
)entry
->data
);
5019 static void visit_ssa_undef(struct ac_nir_context
*ctx
,
5020 const nir_ssa_undef_instr
*instr
)
5022 unsigned num_components
= instr
->def
.num_components
;
5025 if (num_components
== 1)
5026 undef
= LLVMGetUndef(ctx
->ac
.i32
);
5028 undef
= LLVMGetUndef(LLVMVectorType(ctx
->ac
.i32
, num_components
));
5030 _mesa_hash_table_insert(ctx
->defs
, &instr
->def
, undef
);
5033 static void visit_jump(struct ac_nir_context
*ctx
,
5034 const nir_jump_instr
*instr
)
5036 switch (instr
->type
) {
5037 case nir_jump_break
:
5038 LLVMBuildBr(ctx
->ac
.builder
, ctx
->break_block
);
5039 LLVMClearInsertionPosition(ctx
->ac
.builder
);
5041 case nir_jump_continue
:
5042 LLVMBuildBr(ctx
->ac
.builder
, ctx
->continue_block
);
5043 LLVMClearInsertionPosition(ctx
->ac
.builder
);
5046 fprintf(stderr
, "Unknown NIR jump instr: ");
5047 nir_print_instr(&instr
->instr
, stderr
);
5048 fprintf(stderr
, "\n");
5053 static void visit_cf_list(struct ac_nir_context
*ctx
,
5054 struct exec_list
*list
);
5056 static void visit_block(struct ac_nir_context
*ctx
, nir_block
*block
)
5058 LLVMBasicBlockRef llvm_block
= LLVMGetInsertBlock(ctx
->ac
.builder
);
5059 nir_foreach_instr(instr
, block
)
5061 switch (instr
->type
) {
5062 case nir_instr_type_alu
:
5063 visit_alu(ctx
, nir_instr_as_alu(instr
));
5065 case nir_instr_type_load_const
:
5066 visit_load_const(ctx
, nir_instr_as_load_const(instr
));
5068 case nir_instr_type_intrinsic
:
5069 visit_intrinsic(ctx
, nir_instr_as_intrinsic(instr
));
5071 case nir_instr_type_tex
:
5072 visit_tex(ctx
, nir_instr_as_tex(instr
));
5074 case nir_instr_type_phi
:
5075 visit_phi(ctx
, nir_instr_as_phi(instr
));
5077 case nir_instr_type_ssa_undef
:
5078 visit_ssa_undef(ctx
, nir_instr_as_ssa_undef(instr
));
5080 case nir_instr_type_jump
:
5081 visit_jump(ctx
, nir_instr_as_jump(instr
));
5084 fprintf(stderr
, "Unknown NIR instr type: ");
5085 nir_print_instr(instr
, stderr
);
5086 fprintf(stderr
, "\n");
5091 _mesa_hash_table_insert(ctx
->defs
, block
, llvm_block
);
5094 static void visit_if(struct ac_nir_context
*ctx
, nir_if
*if_stmt
)
5096 LLVMValueRef value
= get_src(ctx
, if_stmt
->condition
);
5098 LLVMValueRef fn
= LLVMGetBasicBlockParent(LLVMGetInsertBlock(ctx
->ac
.builder
));
5099 LLVMBasicBlockRef merge_block
=
5100 LLVMAppendBasicBlockInContext(ctx
->ac
.context
, fn
, "");
5101 LLVMBasicBlockRef if_block
=
5102 LLVMAppendBasicBlockInContext(ctx
->ac
.context
, fn
, "");
5103 LLVMBasicBlockRef else_block
= merge_block
;
5104 if (!exec_list_is_empty(&if_stmt
->else_list
))
5105 else_block
= LLVMAppendBasicBlockInContext(
5106 ctx
->ac
.context
, fn
, "");
5108 LLVMValueRef cond
= LLVMBuildICmp(ctx
->ac
.builder
, LLVMIntNE
, value
,
5110 LLVMBuildCondBr(ctx
->ac
.builder
, cond
, if_block
, else_block
);
5112 LLVMPositionBuilderAtEnd(ctx
->ac
.builder
, if_block
);
5113 visit_cf_list(ctx
, &if_stmt
->then_list
);
5114 if (LLVMGetInsertBlock(ctx
->ac
.builder
))
5115 LLVMBuildBr(ctx
->ac
.builder
, merge_block
);
5117 if (!exec_list_is_empty(&if_stmt
->else_list
)) {
5118 LLVMPositionBuilderAtEnd(ctx
->ac
.builder
, else_block
);
5119 visit_cf_list(ctx
, &if_stmt
->else_list
);
5120 if (LLVMGetInsertBlock(ctx
->ac
.builder
))
5121 LLVMBuildBr(ctx
->ac
.builder
, merge_block
);
5124 LLVMPositionBuilderAtEnd(ctx
->ac
.builder
, merge_block
);
5127 static void visit_loop(struct ac_nir_context
*ctx
, nir_loop
*loop
)
5129 LLVMValueRef fn
= LLVMGetBasicBlockParent(LLVMGetInsertBlock(ctx
->ac
.builder
));
5130 LLVMBasicBlockRef continue_parent
= ctx
->continue_block
;
5131 LLVMBasicBlockRef break_parent
= ctx
->break_block
;
5133 ctx
->continue_block
=
5134 LLVMAppendBasicBlockInContext(ctx
->ac
.context
, fn
, "");
5136 LLVMAppendBasicBlockInContext(ctx
->ac
.context
, fn
, "");
5138 LLVMBuildBr(ctx
->ac
.builder
, ctx
->continue_block
);
5139 LLVMPositionBuilderAtEnd(ctx
->ac
.builder
, ctx
->continue_block
);
5140 visit_cf_list(ctx
, &loop
->body
);
5142 if (LLVMGetInsertBlock(ctx
->ac
.builder
))
5143 LLVMBuildBr(ctx
->ac
.builder
, ctx
->continue_block
);
5144 LLVMPositionBuilderAtEnd(ctx
->ac
.builder
, ctx
->break_block
);
5146 ctx
->continue_block
= continue_parent
;
5147 ctx
->break_block
= break_parent
;
5150 static void visit_cf_list(struct ac_nir_context
*ctx
,
5151 struct exec_list
*list
)
5153 foreach_list_typed(nir_cf_node
, node
, node
, list
)
5155 switch (node
->type
) {
5156 case nir_cf_node_block
:
5157 visit_block(ctx
, nir_cf_node_as_block(node
));
5160 case nir_cf_node_if
:
5161 visit_if(ctx
, nir_cf_node_as_if(node
));
5164 case nir_cf_node_loop
:
5165 visit_loop(ctx
, nir_cf_node_as_loop(node
));
5175 handle_vs_input_decl(struct nir_to_llvm_context
*ctx
,
5176 struct nir_variable
*variable
)
5178 LLVMValueRef t_list_ptr
= ctx
->vertex_buffers
;
5179 LLVMValueRef t_offset
;
5180 LLVMValueRef t_list
;
5182 LLVMValueRef buffer_index
;
5183 int index
= variable
->data
.location
- VERT_ATTRIB_GENERIC0
;
5184 int idx
= variable
->data
.location
;
5185 unsigned attrib_count
= glsl_count_attribute_slots(variable
->type
, true);
5187 variable
->data
.driver_location
= idx
* 4;
5189 if (ctx
->options
->key
.vs
.instance_rate_inputs
& (1u << index
)) {
5190 buffer_index
= LLVMBuildAdd(ctx
->builder
, ctx
->abi
.instance_id
,
5191 ctx
->abi
.start_instance
, "");
5192 ctx
->shader_info
->vs
.vgpr_comp_cnt
= MAX2(3,
5193 ctx
->shader_info
->vs
.vgpr_comp_cnt
);
5195 buffer_index
= LLVMBuildAdd(ctx
->builder
, ctx
->abi
.vertex_id
,
5196 ctx
->abi
.base_vertex
, "");
5198 for (unsigned i
= 0; i
< attrib_count
; ++i
, ++idx
) {
5199 t_offset
= LLVMConstInt(ctx
->ac
.i32
, index
+ i
, false);
5201 t_list
= ac_build_load_to_sgpr(&ctx
->ac
, t_list_ptr
, t_offset
);
5203 input
= ac_build_buffer_load_format(&ctx
->ac
, t_list
,
5208 for (unsigned chan
= 0; chan
< 4; chan
++) {
5209 LLVMValueRef llvm_chan
= LLVMConstInt(ctx
->ac
.i32
, chan
, false);
5210 ctx
->inputs
[radeon_llvm_reg_index_soa(idx
, chan
)] =
5211 ac_to_integer(&ctx
->ac
, LLVMBuildExtractElement(ctx
->builder
,
5212 input
, llvm_chan
, ""));
5217 static void interp_fs_input(struct nir_to_llvm_context
*ctx
,
5219 LLVMValueRef interp_param
,
5220 LLVMValueRef prim_mask
,
5221 LLVMValueRef result
[4])
5223 LLVMValueRef attr_number
;
5226 bool interp
= interp_param
!= NULL
;
5228 attr_number
= LLVMConstInt(ctx
->ac
.i32
, attr
, false);
5230 /* fs.constant returns the param from the middle vertex, so it's not
5231 * really useful for flat shading. It's meant to be used for custom
5232 * interpolation (but the intrinsic can't fetch from the other two
5235 * Luckily, it doesn't matter, because we rely on the FLAT_SHADE state
5236 * to do the right thing. The only reason we use fs.constant is that
5237 * fs.interp cannot be used on integers, because they can be equal
5241 interp_param
= LLVMBuildBitCast(ctx
->builder
, interp_param
,
5244 i
= LLVMBuildExtractElement(ctx
->builder
, interp_param
,
5246 j
= LLVMBuildExtractElement(ctx
->builder
, interp_param
,
5250 for (chan
= 0; chan
< 4; chan
++) {
5251 LLVMValueRef llvm_chan
= LLVMConstInt(ctx
->ac
.i32
, chan
, false);
5254 result
[chan
] = ac_build_fs_interp(&ctx
->ac
,
5259 result
[chan
] = ac_build_fs_interp_mov(&ctx
->ac
,
5260 LLVMConstInt(ctx
->ac
.i32
, 2, false),
5269 handle_fs_input_decl(struct nir_to_llvm_context
*ctx
,
5270 struct nir_variable
*variable
)
5272 int idx
= variable
->data
.location
;
5273 unsigned attrib_count
= glsl_count_attribute_slots(variable
->type
, false);
5274 LLVMValueRef interp
;
5276 variable
->data
.driver_location
= idx
* 4;
5277 ctx
->input_mask
|= ((1ull << attrib_count
) - 1) << variable
->data
.location
;
5279 if (glsl_get_base_type(glsl_without_array(variable
->type
)) == GLSL_TYPE_FLOAT
) {
5280 unsigned interp_type
;
5281 if (variable
->data
.sample
) {
5282 interp_type
= INTERP_SAMPLE
;
5283 ctx
->shader_info
->info
.ps
.force_persample
= true;
5284 } else if (variable
->data
.centroid
)
5285 interp_type
= INTERP_CENTROID
;
5287 interp_type
= INTERP_CENTER
;
5289 interp
= lookup_interp_param(ctx
, variable
->data
.interpolation
, interp_type
);
5293 for (unsigned i
= 0; i
< attrib_count
; ++i
)
5294 ctx
->inputs
[radeon_llvm_reg_index_soa(idx
+ i
, 0)] = interp
;
5299 handle_vs_inputs(struct nir_to_llvm_context
*ctx
,
5300 struct nir_shader
*nir
) {
5301 nir_foreach_variable(variable
, &nir
->inputs
)
5302 handle_vs_input_decl(ctx
, variable
);
5306 prepare_interp_optimize(struct nir_to_llvm_context
*ctx
,
5307 struct nir_shader
*nir
)
5309 if (!ctx
->options
->key
.fs
.multisample
)
5312 bool uses_center
= false;
5313 bool uses_centroid
= false;
5314 nir_foreach_variable(variable
, &nir
->inputs
) {
5315 if (glsl_get_base_type(glsl_without_array(variable
->type
)) != GLSL_TYPE_FLOAT
||
5316 variable
->data
.sample
)
5319 if (variable
->data
.centroid
)
5320 uses_centroid
= true;
5325 if (uses_center
&& uses_centroid
) {
5326 LLVMValueRef sel
= LLVMBuildICmp(ctx
->builder
, LLVMIntSLT
, ctx
->prim_mask
, ctx
->ac
.i32_0
, "");
5327 ctx
->persp_centroid
= LLVMBuildSelect(ctx
->builder
, sel
, ctx
->persp_center
, ctx
->persp_centroid
, "");
5328 ctx
->linear_centroid
= LLVMBuildSelect(ctx
->builder
, sel
, ctx
->linear_center
, ctx
->linear_centroid
, "");
5333 handle_fs_inputs(struct nir_to_llvm_context
*ctx
,
5334 struct nir_shader
*nir
)
5336 prepare_interp_optimize(ctx
, nir
);
5338 nir_foreach_variable(variable
, &nir
->inputs
)
5339 handle_fs_input_decl(ctx
, variable
);
5343 if (ctx
->shader_info
->info
.ps
.uses_input_attachments
||
5344 ctx
->shader_info
->info
.needs_multiview_view_index
)
5345 ctx
->input_mask
|= 1ull << VARYING_SLOT_LAYER
;
5347 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_INPUTS
; ++i
) {
5348 LLVMValueRef interp_param
;
5349 LLVMValueRef
*inputs
= ctx
->inputs
+radeon_llvm_reg_index_soa(i
, 0);
5351 if (!(ctx
->input_mask
& (1ull << i
)))
5354 if (i
>= VARYING_SLOT_VAR0
|| i
== VARYING_SLOT_PNTC
||
5355 i
== VARYING_SLOT_PRIMITIVE_ID
|| i
== VARYING_SLOT_LAYER
) {
5356 interp_param
= *inputs
;
5357 interp_fs_input(ctx
, index
, interp_param
, ctx
->prim_mask
,
5361 ctx
->shader_info
->fs
.flat_shaded_mask
|= 1u << index
;
5363 } else if (i
== VARYING_SLOT_POS
) {
5364 for(int i
= 0; i
< 3; ++i
)
5365 inputs
[i
] = ctx
->abi
.frag_pos
[i
];
5367 inputs
[3] = ac_build_fdiv(&ctx
->ac
, ctx
->ac
.f32_1
,
5368 ctx
->abi
.frag_pos
[3]);
5371 ctx
->shader_info
->fs
.num_interp
= index
;
5372 if (ctx
->input_mask
& (1 << VARYING_SLOT_PNTC
))
5373 ctx
->shader_info
->fs
.has_pcoord
= true;
5374 if (ctx
->input_mask
& (1 << VARYING_SLOT_PRIMITIVE_ID
))
5375 ctx
->shader_info
->fs
.prim_id_input
= true;
5376 if (ctx
->input_mask
& (1 << VARYING_SLOT_LAYER
))
5377 ctx
->shader_info
->fs
.layer_input
= true;
5378 ctx
->shader_info
->fs
.input_mask
= ctx
->input_mask
>> VARYING_SLOT_VAR0
;
5380 if (ctx
->shader_info
->info
.needs_multiview_view_index
)
5381 ctx
->view_index
= ctx
->inputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_LAYER
, 0)];
5385 ac_build_alloca(struct ac_llvm_context
*ac
,
5389 LLVMBuilderRef builder
= ac
->builder
;
5390 LLVMBasicBlockRef current_block
= LLVMGetInsertBlock(builder
);
5391 LLVMValueRef function
= LLVMGetBasicBlockParent(current_block
);
5392 LLVMBasicBlockRef first_block
= LLVMGetEntryBasicBlock(function
);
5393 LLVMValueRef first_instr
= LLVMGetFirstInstruction(first_block
);
5394 LLVMBuilderRef first_builder
= LLVMCreateBuilderInContext(ac
->context
);
5398 LLVMPositionBuilderBefore(first_builder
, first_instr
);
5400 LLVMPositionBuilderAtEnd(first_builder
, first_block
);
5403 res
= LLVMBuildAlloca(first_builder
, type
, name
);
5404 LLVMBuildStore(builder
, LLVMConstNull(type
), res
);
5406 LLVMDisposeBuilder(first_builder
);
5411 static LLVMValueRef
si_build_alloca_undef(struct ac_llvm_context
*ac
,
5415 LLVMValueRef ptr
= ac_build_alloca(ac
, type
, name
);
5416 LLVMBuildStore(ac
->builder
, LLVMGetUndef(type
), ptr
);
5421 scan_shader_output_decl(struct nir_to_llvm_context
*ctx
,
5422 struct nir_variable
*variable
,
5423 struct nir_shader
*shader
,
5424 gl_shader_stage stage
)
5426 int idx
= variable
->data
.location
+ variable
->data
.index
;
5427 unsigned attrib_count
= glsl_count_attribute_slots(variable
->type
, false);
5428 uint64_t mask_attribs
;
5430 variable
->data
.driver_location
= idx
* 4;
5432 /* tess ctrl has it's own load/store paths for outputs */
5433 if (stage
== MESA_SHADER_TESS_CTRL
)
5436 mask_attribs
= ((1ull << attrib_count
) - 1) << idx
;
5437 if (stage
== MESA_SHADER_VERTEX
||
5438 stage
== MESA_SHADER_TESS_EVAL
||
5439 stage
== MESA_SHADER_GEOMETRY
) {
5440 if (idx
== VARYING_SLOT_CLIP_DIST0
) {
5441 int length
= shader
->info
.clip_distance_array_size
+
5442 shader
->info
.cull_distance_array_size
;
5443 if (stage
== MESA_SHADER_VERTEX
) {
5444 ctx
->shader_info
->vs
.outinfo
.clip_dist_mask
= (1 << shader
->info
.clip_distance_array_size
) - 1;
5445 ctx
->shader_info
->vs
.outinfo
.cull_dist_mask
= (1 << shader
->info
.cull_distance_array_size
) - 1;
5447 if (stage
== MESA_SHADER_TESS_EVAL
) {
5448 ctx
->shader_info
->tes
.outinfo
.clip_dist_mask
= (1 << shader
->info
.clip_distance_array_size
) - 1;
5449 ctx
->shader_info
->tes
.outinfo
.cull_dist_mask
= (1 << shader
->info
.cull_distance_array_size
) - 1;
5456 mask_attribs
= 1ull << idx
;
5460 ctx
->output_mask
|= mask_attribs
;
5464 handle_shader_output_decl(struct ac_nir_context
*ctx
,
5465 struct nir_shader
*nir
,
5466 struct nir_variable
*variable
)
5468 unsigned output_loc
= variable
->data
.driver_location
/ 4;
5469 unsigned attrib_count
= glsl_count_attribute_slots(variable
->type
, false);
5471 /* tess ctrl has it's own load/store paths for outputs */
5472 if (ctx
->stage
== MESA_SHADER_TESS_CTRL
)
5475 if (ctx
->stage
== MESA_SHADER_VERTEX
||
5476 ctx
->stage
== MESA_SHADER_TESS_EVAL
||
5477 ctx
->stage
== MESA_SHADER_GEOMETRY
) {
5478 int idx
= variable
->data
.location
+ variable
->data
.index
;
5479 if (idx
== VARYING_SLOT_CLIP_DIST0
) {
5480 int length
= nir
->info
.clip_distance_array_size
+
5481 nir
->info
.cull_distance_array_size
;
5490 for (unsigned i
= 0; i
< attrib_count
; ++i
) {
5491 for (unsigned chan
= 0; chan
< 4; chan
++) {
5492 ctx
->outputs
[radeon_llvm_reg_index_soa(output_loc
+ i
, chan
)] =
5493 si_build_alloca_undef(&ctx
->ac
, ctx
->ac
.f32
, "");
5499 glsl_base_to_llvm_type(struct nir_to_llvm_context
*ctx
,
5500 enum glsl_base_type type
)
5504 case GLSL_TYPE_UINT
:
5505 case GLSL_TYPE_BOOL
:
5506 case GLSL_TYPE_SUBROUTINE
:
5508 case GLSL_TYPE_FLOAT
: /* TODO handle mediump */
5510 case GLSL_TYPE_INT64
:
5511 case GLSL_TYPE_UINT64
:
5513 case GLSL_TYPE_DOUBLE
:
5516 unreachable("unknown GLSL type");
5521 glsl_to_llvm_type(struct nir_to_llvm_context
*ctx
,
5522 const struct glsl_type
*type
)
5524 if (glsl_type_is_scalar(type
)) {
5525 return glsl_base_to_llvm_type(ctx
, glsl_get_base_type(type
));
5528 if (glsl_type_is_vector(type
)) {
5529 return LLVMVectorType(
5530 glsl_base_to_llvm_type(ctx
, glsl_get_base_type(type
)),
5531 glsl_get_vector_elements(type
));
5534 if (glsl_type_is_matrix(type
)) {
5535 return LLVMArrayType(
5536 glsl_to_llvm_type(ctx
, glsl_get_column_type(type
)),
5537 glsl_get_matrix_columns(type
));
5540 if (glsl_type_is_array(type
)) {
5541 return LLVMArrayType(
5542 glsl_to_llvm_type(ctx
, glsl_get_array_element(type
)),
5543 glsl_get_length(type
));
5546 assert(glsl_type_is_struct(type
));
5548 LLVMTypeRef member_types
[glsl_get_length(type
)];
5550 for (unsigned i
= 0; i
< glsl_get_length(type
); i
++) {
5552 glsl_to_llvm_type(ctx
,
5553 glsl_get_struct_field(type
, i
));
5556 return LLVMStructTypeInContext(ctx
->context
, member_types
,
5557 glsl_get_length(type
), false);
5561 setup_locals(struct ac_nir_context
*ctx
,
5562 struct nir_function
*func
)
5565 ctx
->num_locals
= 0;
5566 nir_foreach_variable(variable
, &func
->impl
->locals
) {
5567 unsigned attrib_count
= glsl_count_attribute_slots(variable
->type
, false);
5568 variable
->data
.driver_location
= ctx
->num_locals
* 4;
5569 ctx
->num_locals
+= attrib_count
;
5571 ctx
->locals
= malloc(4 * ctx
->num_locals
* sizeof(LLVMValueRef
));
5575 for (i
= 0; i
< ctx
->num_locals
; i
++) {
5576 for (j
= 0; j
< 4; j
++) {
5577 ctx
->locals
[i
* 4 + j
] =
5578 si_build_alloca_undef(&ctx
->ac
, ctx
->ac
.f32
, "temp");
5584 setup_shared(struct ac_nir_context
*ctx
,
5585 struct nir_shader
*nir
)
5587 nir_foreach_variable(variable
, &nir
->shared
) {
5588 LLVMValueRef shared
=
5589 LLVMAddGlobalInAddressSpace(
5590 ctx
->ac
.module
, glsl_to_llvm_type(ctx
->nctx
, variable
->type
),
5591 variable
->name
? variable
->name
: "",
5593 _mesa_hash_table_insert(ctx
->vars
, variable
, shared
);
5598 emit_float_saturate(struct ac_llvm_context
*ctx
, LLVMValueRef v
, float lo
, float hi
)
5600 v
= ac_to_float(ctx
, v
);
5601 v
= emit_intrin_2f_param(ctx
, "llvm.maxnum", ctx
->f32
, v
, LLVMConstReal(ctx
->f32
, lo
));
5602 return emit_intrin_2f_param(ctx
, "llvm.minnum", ctx
->f32
, v
, LLVMConstReal(ctx
->f32
, hi
));
5606 static LLVMValueRef
emit_pack_int16(struct nir_to_llvm_context
*ctx
,
5607 LLVMValueRef src0
, LLVMValueRef src1
)
5609 LLVMValueRef const16
= LLVMConstInt(ctx
->ac
.i32
, 16, false);
5610 LLVMValueRef comp
[2];
5612 comp
[0] = LLVMBuildAnd(ctx
->builder
, src0
, LLVMConstInt(ctx
->ac
.i32
, 65535, 0), "");
5613 comp
[1] = LLVMBuildAnd(ctx
->builder
, src1
, LLVMConstInt(ctx
->ac
.i32
, 65535, 0), "");
5614 comp
[1] = LLVMBuildShl(ctx
->builder
, comp
[1], const16
, "");
5615 return LLVMBuildOr(ctx
->builder
, comp
[0], comp
[1], "");
5618 /* Initialize arguments for the shader export intrinsic */
5620 si_llvm_init_export_args(struct nir_to_llvm_context
*ctx
,
5621 LLVMValueRef
*values
,
5623 struct ac_export_args
*args
)
5625 /* Default is 0xf. Adjusted below depending on the format. */
5626 args
->enabled_channels
= 0xf;
5628 /* Specify whether the EXEC mask represents the valid mask */
5629 args
->valid_mask
= 0;
5631 /* Specify whether this is the last export */
5634 /* Specify the target we are exporting */
5635 args
->target
= target
;
5637 args
->compr
= false;
5638 args
->out
[0] = LLVMGetUndef(ctx
->ac
.f32
);
5639 args
->out
[1] = LLVMGetUndef(ctx
->ac
.f32
);
5640 args
->out
[2] = LLVMGetUndef(ctx
->ac
.f32
);
5641 args
->out
[3] = LLVMGetUndef(ctx
->ac
.f32
);
5646 if (ctx
->stage
== MESA_SHADER_FRAGMENT
&& target
>= V_008DFC_SQ_EXP_MRT
) {
5647 LLVMValueRef val
[4];
5648 unsigned index
= target
- V_008DFC_SQ_EXP_MRT
;
5649 unsigned col_format
= (ctx
->options
->key
.fs
.col_format
>> (4 * index
)) & 0xf;
5650 bool is_int8
= (ctx
->options
->key
.fs
.is_int8
>> index
) & 1;
5651 bool is_int10
= (ctx
->options
->key
.fs
.is_int10
>> index
) & 1;
5653 switch(col_format
) {
5654 case V_028714_SPI_SHADER_ZERO
:
5655 args
->enabled_channels
= 0; /* writemask */
5656 args
->target
= V_008DFC_SQ_EXP_NULL
;
5659 case V_028714_SPI_SHADER_32_R
:
5660 args
->enabled_channels
= 1;
5661 args
->out
[0] = values
[0];
5664 case V_028714_SPI_SHADER_32_GR
:
5665 args
->enabled_channels
= 0x3;
5666 args
->out
[0] = values
[0];
5667 args
->out
[1] = values
[1];
5670 case V_028714_SPI_SHADER_32_AR
:
5671 args
->enabled_channels
= 0x9;
5672 args
->out
[0] = values
[0];
5673 args
->out
[3] = values
[3];
5676 case V_028714_SPI_SHADER_FP16_ABGR
:
5679 for (unsigned chan
= 0; chan
< 2; chan
++) {
5680 LLVMValueRef pack_args
[2] = {
5682 values
[2 * chan
+ 1]
5684 LLVMValueRef packed
;
5686 packed
= ac_build_cvt_pkrtz_f16(&ctx
->ac
, pack_args
);
5687 args
->out
[chan
] = packed
;
5691 case V_028714_SPI_SHADER_UNORM16_ABGR
:
5692 for (unsigned chan
= 0; chan
< 4; chan
++) {
5693 val
[chan
] = ac_build_clamp(&ctx
->ac
, values
[chan
]);
5694 val
[chan
] = LLVMBuildFMul(ctx
->builder
, val
[chan
],
5695 LLVMConstReal(ctx
->ac
.f32
, 65535), "");
5696 val
[chan
] = LLVMBuildFAdd(ctx
->builder
, val
[chan
],
5697 LLVMConstReal(ctx
->ac
.f32
, 0.5), "");
5698 val
[chan
] = LLVMBuildFPToUI(ctx
->builder
, val
[chan
],
5703 args
->out
[0] = emit_pack_int16(ctx
, val
[0], val
[1]);
5704 args
->out
[1] = emit_pack_int16(ctx
, val
[2], val
[3]);
5707 case V_028714_SPI_SHADER_SNORM16_ABGR
:
5708 for (unsigned chan
= 0; chan
< 4; chan
++) {
5709 val
[chan
] = emit_float_saturate(&ctx
->ac
, values
[chan
], -1, 1);
5710 val
[chan
] = LLVMBuildFMul(ctx
->builder
, val
[chan
],
5711 LLVMConstReal(ctx
->ac
.f32
, 32767), "");
5713 /* If positive, add 0.5, else add -0.5. */
5714 val
[chan
] = LLVMBuildFAdd(ctx
->builder
, val
[chan
],
5715 LLVMBuildSelect(ctx
->builder
,
5716 LLVMBuildFCmp(ctx
->builder
, LLVMRealOGE
,
5717 val
[chan
], ctx
->ac
.f32_0
, ""),
5718 LLVMConstReal(ctx
->ac
.f32
, 0.5),
5719 LLVMConstReal(ctx
->ac
.f32
, -0.5), ""), "");
5720 val
[chan
] = LLVMBuildFPToSI(ctx
->builder
, val
[chan
], ctx
->ac
.i32
, "");
5724 args
->out
[0] = emit_pack_int16(ctx
, val
[0], val
[1]);
5725 args
->out
[1] = emit_pack_int16(ctx
, val
[2], val
[3]);
5728 case V_028714_SPI_SHADER_UINT16_ABGR
: {
5729 LLVMValueRef max_rgb
= LLVMConstInt(ctx
->ac
.i32
,
5730 is_int8
? 255 : is_int10
? 1023 : 65535, 0);
5731 LLVMValueRef max_alpha
= !is_int10
? max_rgb
: LLVMConstInt(ctx
->ac
.i32
, 3, 0);
5733 for (unsigned chan
= 0; chan
< 4; chan
++) {
5734 val
[chan
] = ac_to_integer(&ctx
->ac
, values
[chan
]);
5735 val
[chan
] = emit_minmax_int(&ctx
->ac
, LLVMIntULT
, val
[chan
], chan
== 3 ? max_alpha
: max_rgb
);
5739 args
->out
[0] = emit_pack_int16(ctx
, val
[0], val
[1]);
5740 args
->out
[1] = emit_pack_int16(ctx
, val
[2], val
[3]);
5744 case V_028714_SPI_SHADER_SINT16_ABGR
: {
5745 LLVMValueRef max_rgb
= LLVMConstInt(ctx
->ac
.i32
,
5746 is_int8
? 127 : is_int10
? 511 : 32767, 0);
5747 LLVMValueRef min_rgb
= LLVMConstInt(ctx
->ac
.i32
,
5748 is_int8
? -128 : is_int10
? -512 : -32768, 0);
5749 LLVMValueRef max_alpha
= !is_int10
? max_rgb
: ctx
->ac
.i32_1
;
5750 LLVMValueRef min_alpha
= !is_int10
? min_rgb
: LLVMConstInt(ctx
->ac
.i32
, -2, 0);
5753 for (unsigned chan
= 0; chan
< 4; chan
++) {
5754 val
[chan
] = ac_to_integer(&ctx
->ac
, values
[chan
]);
5755 val
[chan
] = emit_minmax_int(&ctx
->ac
, LLVMIntSLT
, val
[chan
], chan
== 3 ? max_alpha
: max_rgb
);
5756 val
[chan
] = emit_minmax_int(&ctx
->ac
, LLVMIntSGT
, val
[chan
], chan
== 3 ? min_alpha
: min_rgb
);
5760 args
->out
[0] = emit_pack_int16(ctx
, val
[0], val
[1]);
5761 args
->out
[1] = emit_pack_int16(ctx
, val
[2], val
[3]);
5766 case V_028714_SPI_SHADER_32_ABGR
:
5767 memcpy(&args
->out
[0], values
, sizeof(values
[0]) * 4);
5771 memcpy(&args
->out
[0], values
, sizeof(values
[0]) * 4);
5773 for (unsigned i
= 0; i
< 4; ++i
)
5774 args
->out
[i
] = ac_to_float(&ctx
->ac
, args
->out
[i
]);
5778 handle_vs_outputs_post(struct nir_to_llvm_context
*ctx
,
5779 bool export_prim_id
,
5780 struct ac_vs_output_info
*outinfo
)
5782 uint32_t param_count
= 0;
5784 unsigned pos_idx
, num_pos_exports
= 0;
5785 struct ac_export_args args
, pos_args
[4] = {};
5786 LLVMValueRef psize_value
= NULL
, layer_value
= NULL
, viewport_index_value
= NULL
;
5789 if (ctx
->options
->key
.has_multiview_view_index
) {
5790 LLVMValueRef
* tmp_out
= &ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_LAYER
, 0)];
5792 for(unsigned i
= 0; i
< 4; ++i
)
5793 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_LAYER
, i
)] =
5794 si_build_alloca_undef(&ctx
->ac
, ctx
->ac
.f32
, "");
5797 LLVMBuildStore(ctx
->builder
, ac_to_float(&ctx
->ac
, ctx
->view_index
), *tmp_out
);
5798 ctx
->output_mask
|= 1ull << VARYING_SLOT_LAYER
;
5801 memset(outinfo
->vs_output_param_offset
, AC_EXP_PARAM_UNDEFINED
,
5802 sizeof(outinfo
->vs_output_param_offset
));
5804 if (ctx
->output_mask
& (1ull << VARYING_SLOT_CLIP_DIST0
)) {
5805 LLVMValueRef slots
[8];
5808 if (outinfo
->cull_dist_mask
)
5809 outinfo
->cull_dist_mask
<<= ctx
->num_output_clips
;
5811 i
= VARYING_SLOT_CLIP_DIST0
;
5812 for (j
= 0; j
< ctx
->num_output_clips
+ ctx
->num_output_culls
; j
++)
5813 slots
[j
] = ac_to_float(&ctx
->ac
, LLVMBuildLoad(ctx
->builder
,
5814 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, j
)], ""));
5816 for (i
= ctx
->num_output_clips
+ ctx
->num_output_culls
; i
< 8; i
++)
5817 slots
[i
] = LLVMGetUndef(ctx
->ac
.f32
);
5819 if (ctx
->num_output_clips
+ ctx
->num_output_culls
> 4) {
5820 target
= V_008DFC_SQ_EXP_POS
+ 3;
5821 si_llvm_init_export_args(ctx
, &slots
[4], target
, &args
);
5822 memcpy(&pos_args
[target
- V_008DFC_SQ_EXP_POS
],
5823 &args
, sizeof(args
));
5826 target
= V_008DFC_SQ_EXP_POS
+ 2;
5827 si_llvm_init_export_args(ctx
, &slots
[0], target
, &args
);
5828 memcpy(&pos_args
[target
- V_008DFC_SQ_EXP_POS
],
5829 &args
, sizeof(args
));
5833 LLVMValueRef pos_values
[4] = {ctx
->ac
.f32_0
, ctx
->ac
.f32_0
, ctx
->ac
.f32_0
, ctx
->ac
.f32_1
};
5834 if (ctx
->output_mask
& (1ull << VARYING_SLOT_POS
)) {
5835 for (unsigned j
= 0; j
< 4; j
++)
5836 pos_values
[j
] = LLVMBuildLoad(ctx
->builder
,
5837 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_POS
, j
)], "");
5839 si_llvm_init_export_args(ctx
, pos_values
, V_008DFC_SQ_EXP_POS
, &pos_args
[0]);
5841 if (ctx
->output_mask
& (1ull << VARYING_SLOT_PSIZ
)) {
5842 outinfo
->writes_pointsize
= true;
5843 psize_value
= LLVMBuildLoad(ctx
->builder
,
5844 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_PSIZ
, 0)], "");
5847 if (ctx
->output_mask
& (1ull << VARYING_SLOT_LAYER
)) {
5848 outinfo
->writes_layer
= true;
5849 layer_value
= LLVMBuildLoad(ctx
->builder
,
5850 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_LAYER
, 0)], "");
5853 if (ctx
->output_mask
& (1ull << VARYING_SLOT_VIEWPORT
)) {
5854 outinfo
->writes_viewport_index
= true;
5855 viewport_index_value
= LLVMBuildLoad(ctx
->builder
,
5856 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_VIEWPORT
, 0)], "");
5859 if (outinfo
->writes_pointsize
||
5860 outinfo
->writes_layer
||
5861 outinfo
->writes_viewport_index
) {
5862 pos_args
[1].enabled_channels
= ((outinfo
->writes_pointsize
== true ? 1 : 0) |
5863 (outinfo
->writes_layer
== true ? 4 : 0));
5864 pos_args
[1].valid_mask
= 0;
5865 pos_args
[1].done
= 0;
5866 pos_args
[1].target
= V_008DFC_SQ_EXP_POS
+ 1;
5867 pos_args
[1].compr
= 0;
5868 pos_args
[1].out
[0] = ctx
->ac
.f32_0
; /* X */
5869 pos_args
[1].out
[1] = ctx
->ac
.f32_0
; /* Y */
5870 pos_args
[1].out
[2] = ctx
->ac
.f32_0
; /* Z */
5871 pos_args
[1].out
[3] = ctx
->ac
.f32_0
; /* W */
5873 if (outinfo
->writes_pointsize
== true)
5874 pos_args
[1].out
[0] = psize_value
;
5875 if (outinfo
->writes_layer
== true)
5876 pos_args
[1].out
[2] = layer_value
;
5877 if (outinfo
->writes_viewport_index
== true) {
5878 if (ctx
->options
->chip_class
>= GFX9
) {
5879 /* GFX9 has the layer in out.z[10:0] and the viewport
5880 * index in out.z[19:16].
5882 LLVMValueRef v
= viewport_index_value
;
5883 v
= ac_to_integer(&ctx
->ac
, v
);
5884 v
= LLVMBuildShl(ctx
->builder
, v
,
5885 LLVMConstInt(ctx
->ac
.i32
, 16, false),
5887 v
= LLVMBuildOr(ctx
->builder
, v
,
5888 ac_to_integer(&ctx
->ac
, pos_args
[1].out
[2]), "");
5890 pos_args
[1].out
[2] = ac_to_float(&ctx
->ac
, v
);
5891 pos_args
[1].enabled_channels
|= 1 << 2;
5893 pos_args
[1].out
[3] = viewport_index_value
;
5894 pos_args
[1].enabled_channels
|= 1 << 3;
5898 for (i
= 0; i
< 4; i
++) {
5899 if (pos_args
[i
].out
[0])
5904 for (i
= 0; i
< 4; i
++) {
5905 if (!pos_args
[i
].out
[0])
5908 /* Specify the target we are exporting */
5909 pos_args
[i
].target
= V_008DFC_SQ_EXP_POS
+ pos_idx
++;
5910 if (pos_idx
== num_pos_exports
)
5911 pos_args
[i
].done
= 1;
5912 ac_build_export(&ctx
->ac
, &pos_args
[i
]);
5915 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
5916 LLVMValueRef values
[4];
5917 if (!(ctx
->output_mask
& (1ull << i
)))
5920 for (unsigned j
= 0; j
< 4; j
++)
5921 values
[j
] = ac_to_float(&ctx
->ac
, LLVMBuildLoad(ctx
->builder
,
5922 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, j
)], ""));
5924 if (i
== VARYING_SLOT_LAYER
) {
5925 target
= V_008DFC_SQ_EXP_PARAM
+ param_count
;
5926 outinfo
->vs_output_param_offset
[VARYING_SLOT_LAYER
] = param_count
;
5928 } else if (i
== VARYING_SLOT_PRIMITIVE_ID
) {
5929 target
= V_008DFC_SQ_EXP_PARAM
+ param_count
;
5930 outinfo
->vs_output_param_offset
[VARYING_SLOT_PRIMITIVE_ID
] = param_count
;
5932 } else if (i
>= VARYING_SLOT_VAR0
) {
5933 outinfo
->export_mask
|= 1u << (i
- VARYING_SLOT_VAR0
);
5934 target
= V_008DFC_SQ_EXP_PARAM
+ param_count
;
5935 outinfo
->vs_output_param_offset
[i
] = param_count
;
5940 si_llvm_init_export_args(ctx
, values
, target
, &args
);
5942 if (target
>= V_008DFC_SQ_EXP_POS
&&
5943 target
<= (V_008DFC_SQ_EXP_POS
+ 3)) {
5944 memcpy(&pos_args
[target
- V_008DFC_SQ_EXP_POS
],
5945 &args
, sizeof(args
));
5947 ac_build_export(&ctx
->ac
, &args
);
5951 if (export_prim_id
) {
5952 LLVMValueRef values
[4];
5953 target
= V_008DFC_SQ_EXP_PARAM
+ param_count
;
5954 outinfo
->vs_output_param_offset
[VARYING_SLOT_PRIMITIVE_ID
] = param_count
;
5957 values
[0] = ctx
->vs_prim_id
;
5958 ctx
->shader_info
->vs
.vgpr_comp_cnt
= MAX2(2,
5959 ctx
->shader_info
->vs
.vgpr_comp_cnt
);
5960 for (unsigned j
= 1; j
< 4; j
++)
5961 values
[j
] = ctx
->ac
.f32_0
;
5962 si_llvm_init_export_args(ctx
, values
, target
, &args
);
5963 ac_build_export(&ctx
->ac
, &args
);
5964 outinfo
->export_prim_id
= true;
5967 outinfo
->pos_exports
= num_pos_exports
;
5968 outinfo
->param_exports
= param_count
;
5972 handle_es_outputs_post(struct nir_to_llvm_context
*ctx
,
5973 struct ac_es_output_info
*outinfo
)
5976 uint64_t max_output_written
= 0;
5977 LLVMValueRef lds_base
= NULL
;
5979 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
5983 if (!(ctx
->output_mask
& (1ull << i
)))
5986 if (i
== VARYING_SLOT_CLIP_DIST0
)
5987 length
= ctx
->num_output_clips
+ ctx
->num_output_culls
;
5989 param_index
= shader_io_get_unique_index(i
);
5991 max_output_written
= MAX2(param_index
+ (length
> 4), max_output_written
);
5994 outinfo
->esgs_itemsize
= (max_output_written
+ 1) * 16;
5996 if (ctx
->ac
.chip_class
>= GFX9
) {
5997 unsigned itemsize_dw
= outinfo
->esgs_itemsize
/ 4;
5998 LLVMValueRef vertex_idx
= ac_get_thread_id(&ctx
->ac
);
5999 LLVMValueRef wave_idx
= ac_build_bfe(&ctx
->ac
, ctx
->merged_wave_info
,
6000 LLVMConstInt(ctx
->ac
.i32
, 24, false),
6001 LLVMConstInt(ctx
->ac
.i32
, 4, false), false);
6002 vertex_idx
= LLVMBuildOr(ctx
->ac
.builder
, vertex_idx
,
6003 LLVMBuildMul(ctx
->ac
.builder
, wave_idx
,
6004 LLVMConstInt(ctx
->ac
.i32
, 64, false), ""), "");
6005 lds_base
= LLVMBuildMul(ctx
->ac
.builder
, vertex_idx
,
6006 LLVMConstInt(ctx
->ac
.i32
, itemsize_dw
, 0), "");
6009 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
6010 LLVMValueRef dw_addr
;
6011 LLVMValueRef
*out_ptr
= &ctx
->nir
->outputs
[i
* 4];
6015 if (!(ctx
->output_mask
& (1ull << i
)))
6018 if (i
== VARYING_SLOT_CLIP_DIST0
)
6019 length
= ctx
->num_output_clips
+ ctx
->num_output_culls
;
6021 param_index
= shader_io_get_unique_index(i
);
6024 dw_addr
= LLVMBuildAdd(ctx
->builder
, lds_base
,
6025 LLVMConstInt(ctx
->ac
.i32
, param_index
* 4, false),
6028 for (j
= 0; j
< length
; j
++) {
6029 LLVMValueRef out_val
= LLVMBuildLoad(ctx
->builder
, out_ptr
[j
], "");
6030 out_val
= LLVMBuildBitCast(ctx
->builder
, out_val
, ctx
->ac
.i32
, "");
6032 if (ctx
->ac
.chip_class
>= GFX9
) {
6033 ac_lds_store(&ctx
->ac
, dw_addr
,
6034 LLVMBuildLoad(ctx
->builder
, out_ptr
[j
], ""));
6035 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
, ctx
->ac
.i32_1
, "");
6037 ac_build_buffer_store_dword(&ctx
->ac
,
6040 NULL
, ctx
->es2gs_offset
,
6041 (4 * param_index
+ j
) * 4,
6049 handle_ls_outputs_post(struct nir_to_llvm_context
*ctx
)
6051 LLVMValueRef vertex_id
= ctx
->rel_auto_id
;
6052 LLVMValueRef vertex_dw_stride
= unpack_param(&ctx
->ac
, ctx
->ls_out_layout
, 13, 8);
6053 LLVMValueRef base_dw_addr
= LLVMBuildMul(ctx
->builder
, vertex_id
,
6054 vertex_dw_stride
, "");
6056 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
6057 LLVMValueRef
*out_ptr
= &ctx
->nir
->outputs
[i
* 4];
6060 if (!(ctx
->output_mask
& (1ull << i
)))
6063 if (i
== VARYING_SLOT_CLIP_DIST0
)
6064 length
= ctx
->num_output_clips
+ ctx
->num_output_culls
;
6065 int param
= shader_io_get_unique_index(i
);
6066 mark_tess_output(ctx
, false, param
);
6068 mark_tess_output(ctx
, false, param
+ 1);
6069 LLVMValueRef dw_addr
= LLVMBuildAdd(ctx
->builder
, base_dw_addr
,
6070 LLVMConstInt(ctx
->ac
.i32
, param
* 4, false),
6072 for (unsigned j
= 0; j
< length
; j
++) {
6073 ac_lds_store(&ctx
->ac
, dw_addr
,
6074 LLVMBuildLoad(ctx
->builder
, out_ptr
[j
], ""));
6075 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
, ctx
->ac
.i32_1
, "");
6080 struct ac_build_if_state
6082 struct nir_to_llvm_context
*ctx
;
6083 LLVMValueRef condition
;
6084 LLVMBasicBlockRef entry_block
;
6085 LLVMBasicBlockRef true_block
;
6086 LLVMBasicBlockRef false_block
;
6087 LLVMBasicBlockRef merge_block
;
6090 static LLVMBasicBlockRef
6091 ac_build_insert_new_block(struct nir_to_llvm_context
*ctx
, const char *name
)
6093 LLVMBasicBlockRef current_block
;
6094 LLVMBasicBlockRef next_block
;
6095 LLVMBasicBlockRef new_block
;
6097 /* get current basic block */
6098 current_block
= LLVMGetInsertBlock(ctx
->builder
);
6100 /* chqeck if there's another block after this one */
6101 next_block
= LLVMGetNextBasicBlock(current_block
);
6103 /* insert the new block before the next block */
6104 new_block
= LLVMInsertBasicBlockInContext(ctx
->context
, next_block
, name
);
6107 /* append new block after current block */
6108 LLVMValueRef function
= LLVMGetBasicBlockParent(current_block
);
6109 new_block
= LLVMAppendBasicBlockInContext(ctx
->context
, function
, name
);
6115 ac_nir_build_if(struct ac_build_if_state
*ifthen
,
6116 struct nir_to_llvm_context
*ctx
,
6117 LLVMValueRef condition
)
6119 LLVMBasicBlockRef block
= LLVMGetInsertBlock(ctx
->builder
);
6121 memset(ifthen
, 0, sizeof *ifthen
);
6123 ifthen
->condition
= condition
;
6124 ifthen
->entry_block
= block
;
6126 /* create endif/merge basic block for the phi functions */
6127 ifthen
->merge_block
= ac_build_insert_new_block(ctx
, "endif-block");
6129 /* create/insert true_block before merge_block */
6130 ifthen
->true_block
=
6131 LLVMInsertBasicBlockInContext(ctx
->context
,
6132 ifthen
->merge_block
,
6135 /* successive code goes into the true block */
6136 LLVMPositionBuilderAtEnd(ctx
->builder
, ifthen
->true_block
);
6140 * End a conditional.
6143 ac_nir_build_endif(struct ac_build_if_state
*ifthen
)
6145 LLVMBuilderRef builder
= ifthen
->ctx
->builder
;
6147 /* Insert branch to the merge block from current block */
6148 LLVMBuildBr(builder
, ifthen
->merge_block
);
6151 * Now patch in the various branch instructions.
6154 /* Insert the conditional branch instruction at the end of entry_block */
6155 LLVMPositionBuilderAtEnd(builder
, ifthen
->entry_block
);
6156 if (ifthen
->false_block
) {
6157 /* we have an else clause */
6158 LLVMBuildCondBr(builder
, ifthen
->condition
,
6159 ifthen
->true_block
, ifthen
->false_block
);
6162 /* no else clause */
6163 LLVMBuildCondBr(builder
, ifthen
->condition
,
6164 ifthen
->true_block
, ifthen
->merge_block
);
6167 /* Resume building code at end of the ifthen->merge_block */
6168 LLVMPositionBuilderAtEnd(builder
, ifthen
->merge_block
);
6172 write_tess_factors(struct nir_to_llvm_context
*ctx
)
6174 unsigned stride
, outer_comps
, inner_comps
;
6175 struct ac_build_if_state if_ctx
, inner_if_ctx
;
6176 LLVMValueRef invocation_id
= unpack_param(&ctx
->ac
, ctx
->tcs_rel_ids
, 8, 5);
6177 LLVMValueRef rel_patch_id
= unpack_param(&ctx
->ac
, ctx
->tcs_rel_ids
, 0, 8);
6178 unsigned tess_inner_index
, tess_outer_index
;
6179 LLVMValueRef lds_base
, lds_inner
, lds_outer
, byteoffset
, buffer
;
6180 LLVMValueRef out
[6], vec0
, vec1
, tf_base
, inner
[4], outer
[4];
6184 switch (ctx
->options
->key
.tcs
.primitive_mode
) {
6204 ac_nir_build_if(&if_ctx
, ctx
,
6205 LLVMBuildICmp(ctx
->builder
, LLVMIntEQ
,
6206 invocation_id
, ctx
->ac
.i32_0
, ""));
6208 tess_inner_index
= shader_io_get_unique_index(VARYING_SLOT_TESS_LEVEL_INNER
);
6209 tess_outer_index
= shader_io_get_unique_index(VARYING_SLOT_TESS_LEVEL_OUTER
);
6211 mark_tess_output(ctx
, true, tess_inner_index
);
6212 mark_tess_output(ctx
, true, tess_outer_index
);
6213 lds_base
= get_tcs_out_current_patch_data_offset(ctx
);
6214 lds_inner
= LLVMBuildAdd(ctx
->builder
, lds_base
,
6215 LLVMConstInt(ctx
->ac
.i32
, tess_inner_index
* 4, false), "");
6216 lds_outer
= LLVMBuildAdd(ctx
->builder
, lds_base
,
6217 LLVMConstInt(ctx
->ac
.i32
, tess_outer_index
* 4, false), "");
6219 for (i
= 0; i
< 4; i
++) {
6220 inner
[i
] = LLVMGetUndef(ctx
->ac
.i32
);
6221 outer
[i
] = LLVMGetUndef(ctx
->ac
.i32
);
6225 if (ctx
->options
->key
.tcs
.primitive_mode
== GL_ISOLINES
) {
6226 outer
[0] = out
[1] = ac_lds_load(&ctx
->ac
, lds_outer
);
6227 lds_outer
= LLVMBuildAdd(ctx
->builder
, lds_outer
,
6229 outer
[1] = out
[0] = ac_lds_load(&ctx
->ac
, lds_outer
);
6231 for (i
= 0; i
< outer_comps
; i
++) {
6233 ac_lds_load(&ctx
->ac
, lds_outer
);
6234 lds_outer
= LLVMBuildAdd(ctx
->builder
, lds_outer
,
6237 for (i
= 0; i
< inner_comps
; i
++) {
6238 inner
[i
] = out
[outer_comps
+i
] =
6239 ac_lds_load(&ctx
->ac
, lds_inner
);
6240 lds_inner
= LLVMBuildAdd(ctx
->builder
, lds_inner
,
6245 /* Convert the outputs to vectors for stores. */
6246 vec0
= ac_build_gather_values(&ctx
->ac
, out
, MIN2(stride
, 4));
6250 vec1
= ac_build_gather_values(&ctx
->ac
, out
+ 4, stride
- 4);
6253 buffer
= ctx
->hs_ring_tess_factor
;
6254 tf_base
= ctx
->tess_factor_offset
;
6255 byteoffset
= LLVMBuildMul(ctx
->builder
, rel_patch_id
,
6256 LLVMConstInt(ctx
->ac
.i32
, 4 * stride
, false), "");
6257 unsigned tf_offset
= 0;
6259 if (ctx
->options
->chip_class
<= VI
) {
6260 ac_nir_build_if(&inner_if_ctx
, ctx
,
6261 LLVMBuildICmp(ctx
->builder
, LLVMIntEQ
,
6262 rel_patch_id
, ctx
->ac
.i32_0
, ""));
6264 /* Store the dynamic HS control word. */
6265 ac_build_buffer_store_dword(&ctx
->ac
, buffer
,
6266 LLVMConstInt(ctx
->ac
.i32
, 0x80000000, false),
6267 1, ctx
->ac
.i32_0
, tf_base
,
6268 0, 1, 0, true, false);
6271 ac_nir_build_endif(&inner_if_ctx
);
6274 /* Store the tessellation factors. */
6275 ac_build_buffer_store_dword(&ctx
->ac
, buffer
, vec0
,
6276 MIN2(stride
, 4), byteoffset
, tf_base
,
6277 tf_offset
, 1, 0, true, false);
6279 ac_build_buffer_store_dword(&ctx
->ac
, buffer
, vec1
,
6280 stride
- 4, byteoffset
, tf_base
,
6281 16 + tf_offset
, 1, 0, true, false);
6283 //store to offchip for TES to read - only if TES reads them
6284 if (ctx
->options
->key
.tcs
.tes_reads_tess_factors
) {
6285 LLVMValueRef inner_vec
, outer_vec
, tf_outer_offset
;
6286 LLVMValueRef tf_inner_offset
;
6287 unsigned param_outer
, param_inner
;
6289 param_outer
= shader_io_get_unique_index(VARYING_SLOT_TESS_LEVEL_OUTER
);
6290 tf_outer_offset
= get_tcs_tes_buffer_address(ctx
, NULL
,
6291 LLVMConstInt(ctx
->ac
.i32
, param_outer
, 0));
6293 outer_vec
= ac_build_gather_values(&ctx
->ac
, outer
,
6294 util_next_power_of_two(outer_comps
));
6296 ac_build_buffer_store_dword(&ctx
->ac
, ctx
->hs_ring_tess_offchip
, outer_vec
,
6297 outer_comps
, tf_outer_offset
,
6298 ctx
->oc_lds
, 0, 1, 0, true, false);
6300 param_inner
= shader_io_get_unique_index(VARYING_SLOT_TESS_LEVEL_INNER
);
6301 tf_inner_offset
= get_tcs_tes_buffer_address(ctx
, NULL
,
6302 LLVMConstInt(ctx
->ac
.i32
, param_inner
, 0));
6304 inner_vec
= inner_comps
== 1 ? inner
[0] :
6305 ac_build_gather_values(&ctx
->ac
, inner
, inner_comps
);
6306 ac_build_buffer_store_dword(&ctx
->ac
, ctx
->hs_ring_tess_offchip
, inner_vec
,
6307 inner_comps
, tf_inner_offset
,
6308 ctx
->oc_lds
, 0, 1, 0, true, false);
6311 ac_nir_build_endif(&if_ctx
);
6315 handle_tcs_outputs_post(struct nir_to_llvm_context
*ctx
)
6317 write_tess_factors(ctx
);
6321 si_export_mrt_color(struct nir_to_llvm_context
*ctx
,
6322 LLVMValueRef
*color
, unsigned param
, bool is_last
,
6323 struct ac_export_args
*args
)
6326 si_llvm_init_export_args(ctx
, color
, param
,
6330 args
->valid_mask
= 1; /* whether the EXEC mask is valid */
6331 args
->done
= 1; /* DONE bit */
6332 } else if (!args
->enabled_channels
)
6333 return false; /* unnecessary NULL export */
6339 radv_export_mrt_z(struct nir_to_llvm_context
*ctx
,
6340 LLVMValueRef depth
, LLVMValueRef stencil
,
6341 LLVMValueRef samplemask
)
6343 struct ac_export_args args
;
6345 ac_export_mrt_z(&ctx
->ac
, depth
, stencil
, samplemask
, &args
);
6347 ac_build_export(&ctx
->ac
, &args
);
6351 handle_fs_outputs_post(struct nir_to_llvm_context
*ctx
)
6354 LLVMValueRef depth
= NULL
, stencil
= NULL
, samplemask
= NULL
;
6355 struct ac_export_args color_args
[8];
6357 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
6358 LLVMValueRef values
[4];
6360 if (!(ctx
->output_mask
& (1ull << i
)))
6363 if (i
== FRAG_RESULT_DEPTH
) {
6364 ctx
->shader_info
->fs
.writes_z
= true;
6365 depth
= ac_to_float(&ctx
->ac
, LLVMBuildLoad(ctx
->builder
,
6366 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, 0)], ""));
6367 } else if (i
== FRAG_RESULT_STENCIL
) {
6368 ctx
->shader_info
->fs
.writes_stencil
= true;
6369 stencil
= ac_to_float(&ctx
->ac
, LLVMBuildLoad(ctx
->builder
,
6370 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, 0)], ""));
6371 } else if (i
== FRAG_RESULT_SAMPLE_MASK
) {
6372 ctx
->shader_info
->fs
.writes_sample_mask
= true;
6373 samplemask
= ac_to_float(&ctx
->ac
, LLVMBuildLoad(ctx
->builder
,
6374 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, 0)], ""));
6377 for (unsigned j
= 0; j
< 4; j
++)
6378 values
[j
] = ac_to_float(&ctx
->ac
, LLVMBuildLoad(ctx
->builder
,
6379 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, j
)], ""));
6381 if (!ctx
->shader_info
->fs
.writes_z
&& !ctx
->shader_info
->fs
.writes_stencil
&& !ctx
->shader_info
->fs
.writes_sample_mask
)
6382 last
= ctx
->output_mask
<= ((1ull << (i
+ 1)) - 1);
6384 bool ret
= si_export_mrt_color(ctx
, values
, V_008DFC_SQ_EXP_MRT
+ (i
- FRAG_RESULT_DATA0
), last
, &color_args
[index
]);
6390 for (unsigned i
= 0; i
< index
; i
++)
6391 ac_build_export(&ctx
->ac
, &color_args
[i
]);
6392 if (depth
|| stencil
|| samplemask
)
6393 radv_export_mrt_z(ctx
, depth
, stencil
, samplemask
);
6395 si_export_mrt_color(ctx
, NULL
, V_008DFC_SQ_EXP_NULL
, true, &color_args
[0]);
6396 ac_build_export(&ctx
->ac
, &color_args
[0]);
6399 ctx
->shader_info
->fs
.output_mask
= index
? ((1ull << index
) - 1) : 0;
6403 emit_gs_epilogue(struct nir_to_llvm_context
*ctx
)
6405 ac_build_sendmsg(&ctx
->ac
, AC_SENDMSG_GS_OP_NOP
| AC_SENDMSG_GS_DONE
, ctx
->gs_wave_id
);
6409 handle_shader_outputs_post(struct ac_shader_abi
*abi
, unsigned max_outputs
,
6410 LLVMValueRef
*addrs
)
6412 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
6414 switch (ctx
->stage
) {
6415 case MESA_SHADER_VERTEX
:
6416 if (ctx
->options
->key
.vs
.as_ls
)
6417 handle_ls_outputs_post(ctx
);
6418 else if (ctx
->options
->key
.vs
.as_es
)
6419 handle_es_outputs_post(ctx
, &ctx
->shader_info
->vs
.es_info
);
6421 handle_vs_outputs_post(ctx
, ctx
->options
->key
.vs
.export_prim_id
,
6422 &ctx
->shader_info
->vs
.outinfo
);
6424 case MESA_SHADER_FRAGMENT
:
6425 handle_fs_outputs_post(ctx
);
6427 case MESA_SHADER_GEOMETRY
:
6428 emit_gs_epilogue(ctx
);
6430 case MESA_SHADER_TESS_CTRL
:
6431 handle_tcs_outputs_post(ctx
);
6433 case MESA_SHADER_TESS_EVAL
:
6434 if (ctx
->options
->key
.tes
.as_es
)
6435 handle_es_outputs_post(ctx
, &ctx
->shader_info
->tes
.es_info
);
6437 handle_vs_outputs_post(ctx
, ctx
->options
->key
.tes
.export_prim_id
,
6438 &ctx
->shader_info
->tes
.outinfo
);
6445 static void ac_llvm_finalize_module(struct nir_to_llvm_context
* ctx
)
6447 LLVMPassManagerRef passmgr
;
6448 /* Create the pass manager */
6449 passmgr
= LLVMCreateFunctionPassManagerForModule(
6452 /* This pass should eliminate all the load and store instructions */
6453 LLVMAddPromoteMemoryToRegisterPass(passmgr
);
6455 /* Add some optimization passes */
6456 LLVMAddScalarReplAggregatesPass(passmgr
);
6457 LLVMAddLICMPass(passmgr
);
6458 LLVMAddAggressiveDCEPass(passmgr
);
6459 LLVMAddCFGSimplificationPass(passmgr
);
6460 LLVMAddInstructionCombiningPass(passmgr
);
6463 LLVMInitializeFunctionPassManager(passmgr
);
6464 LLVMRunFunctionPassManager(passmgr
, ctx
->main_function
);
6465 LLVMFinalizeFunctionPassManager(passmgr
);
6467 LLVMDisposeBuilder(ctx
->builder
);
6468 LLVMDisposePassManager(passmgr
);
6472 ac_nir_eliminate_const_vs_outputs(struct nir_to_llvm_context
*ctx
)
6474 struct ac_vs_output_info
*outinfo
;
6476 switch (ctx
->stage
) {
6477 case MESA_SHADER_FRAGMENT
:
6478 case MESA_SHADER_COMPUTE
:
6479 case MESA_SHADER_TESS_CTRL
:
6480 case MESA_SHADER_GEOMETRY
:
6482 case MESA_SHADER_VERTEX
:
6483 if (ctx
->options
->key
.vs
.as_ls
||
6484 ctx
->options
->key
.vs
.as_es
)
6486 outinfo
= &ctx
->shader_info
->vs
.outinfo
;
6488 case MESA_SHADER_TESS_EVAL
:
6489 if (ctx
->options
->key
.vs
.as_es
)
6491 outinfo
= &ctx
->shader_info
->tes
.outinfo
;
6494 unreachable("Unhandled shader type");
6497 ac_optimize_vs_outputs(&ctx
->ac
,
6499 outinfo
->vs_output_param_offset
,
6501 &outinfo
->param_exports
);
6505 ac_setup_rings(struct nir_to_llvm_context
*ctx
)
6507 if ((ctx
->stage
== MESA_SHADER_VERTEX
&& ctx
->options
->key
.vs
.as_es
) ||
6508 (ctx
->stage
== MESA_SHADER_TESS_EVAL
&& ctx
->options
->key
.tes
.as_es
)) {
6509 ctx
->esgs_ring
= ac_build_load_to_sgpr(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_ESGS_VS
, false));
6512 if (ctx
->is_gs_copy_shader
) {
6513 ctx
->gsvs_ring
= ac_build_load_to_sgpr(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_GSVS_VS
, false));
6515 if (ctx
->stage
== MESA_SHADER_GEOMETRY
) {
6517 ctx
->esgs_ring
= ac_build_load_to_sgpr(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_ESGS_GS
, false));
6518 ctx
->gsvs_ring
= ac_build_load_to_sgpr(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_GSVS_GS
, false));
6520 ctx
->gsvs_ring
= LLVMBuildBitCast(ctx
->builder
, ctx
->gsvs_ring
, ctx
->ac
.v4i32
, "");
6522 ctx
->gsvs_ring
= LLVMBuildInsertElement(ctx
->builder
, ctx
->gsvs_ring
, ctx
->gsvs_num_entries
, LLVMConstInt(ctx
->ac
.i32
, 2, false), "");
6523 tmp
= LLVMBuildExtractElement(ctx
->builder
, ctx
->gsvs_ring
, ctx
->ac
.i32_1
, "");
6524 tmp
= LLVMBuildOr(ctx
->builder
, tmp
, ctx
->gsvs_ring_stride
, "");
6525 ctx
->gsvs_ring
= LLVMBuildInsertElement(ctx
->builder
, ctx
->gsvs_ring
, tmp
, ctx
->ac
.i32_1
, "");
6528 if (ctx
->stage
== MESA_SHADER_TESS_CTRL
||
6529 ctx
->stage
== MESA_SHADER_TESS_EVAL
) {
6530 ctx
->hs_ring_tess_offchip
= ac_build_load_to_sgpr(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_HS_TESS_OFFCHIP
, false));
6531 ctx
->hs_ring_tess_factor
= ac_build_load_to_sgpr(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_HS_TESS_FACTOR
, false));
6536 ac_nir_get_max_workgroup_size(enum chip_class chip_class
,
6537 const struct nir_shader
*nir
)
6539 switch (nir
->info
.stage
) {
6540 case MESA_SHADER_TESS_CTRL
:
6541 return chip_class
>= CIK
? 128 : 64;
6542 case MESA_SHADER_GEOMETRY
:
6543 return chip_class
>= GFX9
? 128 : 64;
6544 case MESA_SHADER_COMPUTE
:
6550 unsigned max_workgroup_size
= nir
->info
.cs
.local_size
[0] *
6551 nir
->info
.cs
.local_size
[1] *
6552 nir
->info
.cs
.local_size
[2];
6553 return max_workgroup_size
;
6556 /* Fixup the HW not emitting the TCS regs if there are no HS threads. */
6557 static void ac_nir_fixup_ls_hs_input_vgprs(struct nir_to_llvm_context
*ctx
)
6559 LLVMValueRef count
= ac_build_bfe(&ctx
->ac
, ctx
->merged_wave_info
,
6560 LLVMConstInt(ctx
->ac
.i32
, 8, false),
6561 LLVMConstInt(ctx
->ac
.i32
, 8, false), false);
6562 LLVMValueRef hs_empty
= LLVMBuildICmp(ctx
->ac
.builder
, LLVMIntEQ
, count
,
6564 ctx
->abi
.instance_id
= LLVMBuildSelect(ctx
->ac
.builder
, hs_empty
, ctx
->rel_auto_id
, ctx
->abi
.instance_id
, "");
6565 ctx
->vs_prim_id
= LLVMBuildSelect(ctx
->ac
.builder
, hs_empty
, ctx
->abi
.vertex_id
, ctx
->vs_prim_id
, "");
6566 ctx
->rel_auto_id
= LLVMBuildSelect(ctx
->ac
.builder
, hs_empty
, ctx
->tcs_rel_ids
, ctx
->rel_auto_id
, "");
6567 ctx
->abi
.vertex_id
= LLVMBuildSelect(ctx
->ac
.builder
, hs_empty
, ctx
->tcs_patch_id
, ctx
->abi
.vertex_id
, "");
6570 static void prepare_gs_input_vgprs(struct nir_to_llvm_context
*ctx
)
6572 for(int i
= 5; i
>= 0; --i
) {
6573 ctx
->gs_vtx_offset
[i
] = ac_build_bfe(&ctx
->ac
, ctx
->gs_vtx_offset
[i
& ~1],
6574 LLVMConstInt(ctx
->ac
.i32
, (i
& 1) * 16, false),
6575 LLVMConstInt(ctx
->ac
.i32
, 16, false), false);
6578 ctx
->gs_wave_id
= ac_build_bfe(&ctx
->ac
, ctx
->merged_wave_info
,
6579 LLVMConstInt(ctx
->ac
.i32
, 16, false),
6580 LLVMConstInt(ctx
->ac
.i32
, 8, false), false);
6583 void ac_nir_translate(struct ac_llvm_context
*ac
, struct ac_shader_abi
*abi
,
6584 struct nir_shader
*nir
, struct nir_to_llvm_context
*nctx
)
6586 struct ac_nir_context ctx
= {};
6587 struct nir_function
*func
;
6596 ctx
.stage
= nir
->info
.stage
;
6598 ctx
.main_function
= LLVMGetBasicBlockParent(LLVMGetInsertBlock(ctx
.ac
.builder
));
6600 nir_foreach_variable(variable
, &nir
->outputs
)
6601 handle_shader_output_decl(&ctx
, nir
, variable
);
6603 ctx
.defs
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
6604 _mesa_key_pointer_equal
);
6605 ctx
.phis
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
6606 _mesa_key_pointer_equal
);
6607 ctx
.vars
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
6608 _mesa_key_pointer_equal
);
6610 func
= (struct nir_function
*)exec_list_get_head(&nir
->functions
);
6612 setup_locals(&ctx
, func
);
6614 if (nir
->info
.stage
== MESA_SHADER_COMPUTE
)
6615 setup_shared(&ctx
, nir
);
6617 visit_cf_list(&ctx
, &func
->impl
->body
);
6618 phi_post_pass(&ctx
);
6620 ctx
.abi
->emit_outputs(ctx
.abi
, RADEON_LLVM_MAX_OUTPUTS
,
6624 ralloc_free(ctx
.defs
);
6625 ralloc_free(ctx
.phis
);
6626 ralloc_free(ctx
.vars
);
6633 LLVMModuleRef
ac_translate_nir_to_llvm(LLVMTargetMachineRef tm
,
6634 struct nir_shader
*const *shaders
,
6636 struct ac_shader_variant_info
*shader_info
,
6637 const struct ac_nir_compiler_options
*options
)
6639 struct nir_to_llvm_context ctx
= {0};
6641 ctx
.options
= options
;
6642 ctx
.shader_info
= shader_info
;
6643 ctx
.context
= LLVMContextCreate();
6644 ctx
.module
= LLVMModuleCreateWithNameInContext("shader", ctx
.context
);
6646 ac_llvm_context_init(&ctx
.ac
, ctx
.context
, options
->chip_class
,
6648 ctx
.ac
.module
= ctx
.module
;
6649 LLVMSetTarget(ctx
.module
, options
->supports_spill
? "amdgcn-mesa-mesa3d" : "amdgcn--");
6651 LLVMTargetDataRef data_layout
= LLVMCreateTargetDataLayout(tm
);
6652 char *data_layout_str
= LLVMCopyStringRepOfTargetData(data_layout
);
6653 LLVMSetDataLayout(ctx
.module
, data_layout_str
);
6654 LLVMDisposeTargetData(data_layout
);
6655 LLVMDisposeMessage(data_layout_str
);
6657 ctx
.builder
= LLVMCreateBuilderInContext(ctx
.context
);
6658 ctx
.ac
.builder
= ctx
.builder
;
6660 memset(shader_info
, 0, sizeof(*shader_info
));
6662 for(int i
= 0; i
< shader_count
; ++i
)
6663 ac_nir_shader_info_pass(shaders
[i
], options
, &shader_info
->info
);
6665 for (i
= 0; i
< AC_UD_MAX_SETS
; i
++)
6666 shader_info
->user_sgprs_locs
.descriptor_sets
[i
].sgpr_idx
= -1;
6667 for (i
= 0; i
< AC_UD_MAX_UD
; i
++)
6668 shader_info
->user_sgprs_locs
.shader_data
[i
].sgpr_idx
= -1;
6670 ctx
.max_workgroup_size
= 0;
6671 for (int i
= 0; i
< shader_count
; ++i
) {
6672 ctx
.max_workgroup_size
= MAX2(ctx
.max_workgroup_size
,
6673 ac_nir_get_max_workgroup_size(ctx
.options
->chip_class
,
6677 create_function(&ctx
, shaders
[shader_count
- 1]->info
.stage
, shader_count
>= 2,
6678 shader_count
>= 2 ? shaders
[shader_count
- 2]->info
.stage
: MESA_SHADER_VERTEX
);
6680 ctx
.abi
.inputs
= &ctx
.inputs
[0];
6681 ctx
.abi
.emit_outputs
= handle_shader_outputs_post
;
6682 ctx
.abi
.emit_vertex
= visit_emit_vertex
;
6683 ctx
.abi
.load_ubo
= radv_load_ubo
;
6684 ctx
.abi
.load_ssbo
= radv_load_ssbo
;
6685 ctx
.abi
.load_sampler_desc
= radv_get_sampler_desc
;
6686 ctx
.abi
.clamp_shadow_reference
= false;
6688 if (shader_count
>= 2)
6689 ac_init_exec_full_mask(&ctx
.ac
);
6691 if (ctx
.ac
.chip_class
== GFX9
&&
6692 shaders
[shader_count
- 1]->info
.stage
== MESA_SHADER_TESS_CTRL
)
6693 ac_nir_fixup_ls_hs_input_vgprs(&ctx
);
6695 for(int i
= 0; i
< shader_count
; ++i
) {
6696 ctx
.stage
= shaders
[i
]->info
.stage
;
6697 ctx
.output_mask
= 0;
6698 ctx
.tess_outputs_written
= 0;
6699 ctx
.num_output_clips
= shaders
[i
]->info
.clip_distance_array_size
;
6700 ctx
.num_output_culls
= shaders
[i
]->info
.cull_distance_array_size
;
6702 if (shaders
[i
]->info
.stage
== MESA_SHADER_GEOMETRY
) {
6703 ctx
.gs_next_vertex
= ac_build_alloca(&ctx
.ac
, ctx
.ac
.i32
, "gs_next_vertex");
6704 ctx
.gs_max_out_vertices
= shaders
[i
]->info
.gs
.vertices_out
;
6705 ctx
.abi
.load_inputs
= load_gs_input
;
6706 } else if (shaders
[i
]->info
.stage
== MESA_SHADER_TESS_CTRL
) {
6707 ctx
.tcs_outputs_read
= shaders
[i
]->info
.outputs_read
;
6708 ctx
.tcs_patch_outputs_read
= shaders
[i
]->info
.patch_outputs_read
;
6709 ctx
.abi
.load_tess_inputs
= load_tcs_input
;
6710 ctx
.abi
.store_tcs_outputs
= store_tcs_output
;
6711 } else if (shaders
[i
]->info
.stage
== MESA_SHADER_TESS_EVAL
) {
6712 ctx
.tes_primitive_mode
= shaders
[i
]->info
.tess
.primitive_mode
;
6713 ctx
.abi
.load_tess_inputs
= load_tes_input
;
6714 } else if (shaders
[i
]->info
.stage
== MESA_SHADER_VERTEX
) {
6715 if (shader_info
->info
.vs
.needs_instance_id
) {
6716 ctx
.shader_info
->vs
.vgpr_comp_cnt
=
6717 MAX2(3, ctx
.shader_info
->vs
.vgpr_comp_cnt
);
6719 } else if (shaders
[i
]->info
.stage
== MESA_SHADER_FRAGMENT
) {
6720 shader_info
->fs
.can_discard
= shaders
[i
]->info
.fs
.uses_discard
;
6726 ac_setup_rings(&ctx
);
6728 LLVMBasicBlockRef merge_block
;
6729 if (shader_count
>= 2) {
6730 LLVMValueRef fn
= LLVMGetBasicBlockParent(LLVMGetInsertBlock(ctx
.ac
.builder
));
6731 LLVMBasicBlockRef then_block
= LLVMAppendBasicBlockInContext(ctx
.ac
.context
, fn
, "");
6732 merge_block
= LLVMAppendBasicBlockInContext(ctx
.ac
.context
, fn
, "");
6734 LLVMValueRef count
= ac_build_bfe(&ctx
.ac
, ctx
.merged_wave_info
,
6735 LLVMConstInt(ctx
.ac
.i32
, 8 * i
, false),
6736 LLVMConstInt(ctx
.ac
.i32
, 8, false), false);
6737 LLVMValueRef thread_id
= ac_get_thread_id(&ctx
.ac
);
6738 LLVMValueRef cond
= LLVMBuildICmp(ctx
.ac
.builder
, LLVMIntULT
,
6739 thread_id
, count
, "");
6740 LLVMBuildCondBr(ctx
.ac
.builder
, cond
, then_block
, merge_block
);
6742 LLVMPositionBuilderAtEnd(ctx
.ac
.builder
, then_block
);
6745 if (shaders
[i
]->info
.stage
== MESA_SHADER_FRAGMENT
)
6746 handle_fs_inputs(&ctx
, shaders
[i
]);
6747 else if(shaders
[i
]->info
.stage
== MESA_SHADER_VERTEX
)
6748 handle_vs_inputs(&ctx
, shaders
[i
]);
6749 else if(shader_count
>= 2 && shaders
[i
]->info
.stage
== MESA_SHADER_GEOMETRY
)
6750 prepare_gs_input_vgprs(&ctx
);
6752 nir_foreach_variable(variable
, &shaders
[i
]->outputs
)
6753 scan_shader_output_decl(&ctx
, variable
, shaders
[i
], shaders
[i
]->info
.stage
);
6755 ac_nir_translate(&ctx
.ac
, &ctx
.abi
, shaders
[i
], &ctx
);
6757 if (shader_count
>= 2) {
6758 LLVMBuildBr(ctx
.ac
.builder
, merge_block
);
6759 LLVMPositionBuilderAtEnd(ctx
.ac
.builder
, merge_block
);
6762 if (shaders
[i
]->info
.stage
== MESA_SHADER_GEOMETRY
) {
6763 unsigned addclip
= shaders
[i
]->info
.clip_distance_array_size
+
6764 shaders
[i
]->info
.cull_distance_array_size
> 4;
6765 shader_info
->gs
.gsvs_vertex_size
= (util_bitcount64(ctx
.output_mask
) + addclip
) * 16;
6766 shader_info
->gs
.max_gsvs_emit_size
= shader_info
->gs
.gsvs_vertex_size
*
6767 shaders
[i
]->info
.gs
.vertices_out
;
6768 } else if (shaders
[i
]->info
.stage
== MESA_SHADER_TESS_CTRL
) {
6769 shader_info
->tcs
.outputs_written
= ctx
.tess_outputs_written
;
6770 shader_info
->tcs
.patch_outputs_written
= ctx
.tess_patch_outputs_written
;
6771 } else if (shaders
[i
]->info
.stage
== MESA_SHADER_VERTEX
&& ctx
.options
->key
.vs
.as_ls
) {
6772 shader_info
->vs
.outputs_written
= ctx
.tess_outputs_written
;
6776 LLVMBuildRetVoid(ctx
.builder
);
6778 ac_llvm_finalize_module(&ctx
);
6780 if (shader_count
== 1)
6781 ac_nir_eliminate_const_vs_outputs(&ctx
);
6786 static void ac_diagnostic_handler(LLVMDiagnosticInfoRef di
, void *context
)
6788 unsigned *retval
= (unsigned *)context
;
6789 LLVMDiagnosticSeverity severity
= LLVMGetDiagInfoSeverity(di
);
6790 char *description
= LLVMGetDiagInfoDescription(di
);
6792 if (severity
== LLVMDSError
) {
6794 fprintf(stderr
, "LLVM triggered Diagnostic Handler: %s\n",
6798 LLVMDisposeMessage(description
);
6801 static unsigned ac_llvm_compile(LLVMModuleRef M
,
6802 struct ac_shader_binary
*binary
,
6803 LLVMTargetMachineRef tm
)
6805 unsigned retval
= 0;
6807 LLVMContextRef llvm_ctx
;
6808 LLVMMemoryBufferRef out_buffer
;
6809 unsigned buffer_size
;
6810 const char *buffer_data
;
6813 /* Setup Diagnostic Handler*/
6814 llvm_ctx
= LLVMGetModuleContext(M
);
6816 LLVMContextSetDiagnosticHandler(llvm_ctx
, ac_diagnostic_handler
,
6820 mem_err
= LLVMTargetMachineEmitToMemoryBuffer(tm
, M
, LLVMObjectFile
,
6823 /* Process Errors/Warnings */
6825 fprintf(stderr
, "%s: %s", __FUNCTION__
, err
);
6831 /* Extract Shader Code*/
6832 buffer_size
= LLVMGetBufferSize(out_buffer
);
6833 buffer_data
= LLVMGetBufferStart(out_buffer
);
6835 ac_elf_read(buffer_data
, buffer_size
, binary
);
6838 LLVMDisposeMemoryBuffer(out_buffer
);
6844 static void ac_compile_llvm_module(LLVMTargetMachineRef tm
,
6845 LLVMModuleRef llvm_module
,
6846 struct ac_shader_binary
*binary
,
6847 struct ac_shader_config
*config
,
6848 struct ac_shader_variant_info
*shader_info
,
6849 gl_shader_stage stage
,
6850 bool dump_shader
, bool supports_spill
)
6853 ac_dump_module(llvm_module
);
6855 memset(binary
, 0, sizeof(*binary
));
6856 int v
= ac_llvm_compile(llvm_module
, binary
, tm
);
6858 fprintf(stderr
, "compile failed\n");
6862 fprintf(stderr
, "disasm:\n%s\n", binary
->disasm_string
);
6864 ac_shader_binary_read_config(binary
, config
, 0, supports_spill
);
6866 LLVMContextRef ctx
= LLVMGetModuleContext(llvm_module
);
6867 LLVMDisposeModule(llvm_module
);
6868 LLVMContextDispose(ctx
);
6870 if (stage
== MESA_SHADER_FRAGMENT
) {
6871 shader_info
->num_input_vgprs
= 0;
6872 if (G_0286CC_PERSP_SAMPLE_ENA(config
->spi_ps_input_addr
))
6873 shader_info
->num_input_vgprs
+= 2;
6874 if (G_0286CC_PERSP_CENTER_ENA(config
->spi_ps_input_addr
))
6875 shader_info
->num_input_vgprs
+= 2;
6876 if (G_0286CC_PERSP_CENTROID_ENA(config
->spi_ps_input_addr
))
6877 shader_info
->num_input_vgprs
+= 2;
6878 if (G_0286CC_PERSP_PULL_MODEL_ENA(config
->spi_ps_input_addr
))
6879 shader_info
->num_input_vgprs
+= 3;
6880 if (G_0286CC_LINEAR_SAMPLE_ENA(config
->spi_ps_input_addr
))
6881 shader_info
->num_input_vgprs
+= 2;
6882 if (G_0286CC_LINEAR_CENTER_ENA(config
->spi_ps_input_addr
))
6883 shader_info
->num_input_vgprs
+= 2;
6884 if (G_0286CC_LINEAR_CENTROID_ENA(config
->spi_ps_input_addr
))
6885 shader_info
->num_input_vgprs
+= 2;
6886 if (G_0286CC_LINE_STIPPLE_TEX_ENA(config
->spi_ps_input_addr
))
6887 shader_info
->num_input_vgprs
+= 1;
6888 if (G_0286CC_POS_X_FLOAT_ENA(config
->spi_ps_input_addr
))
6889 shader_info
->num_input_vgprs
+= 1;
6890 if (G_0286CC_POS_Y_FLOAT_ENA(config
->spi_ps_input_addr
))
6891 shader_info
->num_input_vgprs
+= 1;
6892 if (G_0286CC_POS_Z_FLOAT_ENA(config
->spi_ps_input_addr
))
6893 shader_info
->num_input_vgprs
+= 1;
6894 if (G_0286CC_POS_W_FLOAT_ENA(config
->spi_ps_input_addr
))
6895 shader_info
->num_input_vgprs
+= 1;
6896 if (G_0286CC_FRONT_FACE_ENA(config
->spi_ps_input_addr
))
6897 shader_info
->num_input_vgprs
+= 1;
6898 if (G_0286CC_ANCILLARY_ENA(config
->spi_ps_input_addr
))
6899 shader_info
->num_input_vgprs
+= 1;
6900 if (G_0286CC_SAMPLE_COVERAGE_ENA(config
->spi_ps_input_addr
))
6901 shader_info
->num_input_vgprs
+= 1;
6902 if (G_0286CC_POS_FIXED_PT_ENA(config
->spi_ps_input_addr
))
6903 shader_info
->num_input_vgprs
+= 1;
6905 config
->num_vgprs
= MAX2(config
->num_vgprs
, shader_info
->num_input_vgprs
);
6907 /* +3 for scratch wave offset and VCC */
6908 config
->num_sgprs
= MAX2(config
->num_sgprs
,
6909 shader_info
->num_input_sgprs
+ 3);
6913 ac_fill_shader_info(struct ac_shader_variant_info
*shader_info
, struct nir_shader
*nir
, const struct ac_nir_compiler_options
*options
)
6915 switch (nir
->info
.stage
) {
6916 case MESA_SHADER_COMPUTE
:
6917 for (int i
= 0; i
< 3; ++i
)
6918 shader_info
->cs
.block_size
[i
] = nir
->info
.cs
.local_size
[i
];
6920 case MESA_SHADER_FRAGMENT
:
6921 shader_info
->fs
.early_fragment_test
= nir
->info
.fs
.early_fragment_tests
;
6923 case MESA_SHADER_GEOMETRY
:
6924 shader_info
->gs
.vertices_in
= nir
->info
.gs
.vertices_in
;
6925 shader_info
->gs
.vertices_out
= nir
->info
.gs
.vertices_out
;
6926 shader_info
->gs
.output_prim
= nir
->info
.gs
.output_primitive
;
6927 shader_info
->gs
.invocations
= nir
->info
.gs
.invocations
;
6929 case MESA_SHADER_TESS_EVAL
:
6930 shader_info
->tes
.primitive_mode
= nir
->info
.tess
.primitive_mode
;
6931 shader_info
->tes
.spacing
= nir
->info
.tess
.spacing
;
6932 shader_info
->tes
.ccw
= nir
->info
.tess
.ccw
;
6933 shader_info
->tes
.point_mode
= nir
->info
.tess
.point_mode
;
6934 shader_info
->tes
.as_es
= options
->key
.tes
.as_es
;
6936 case MESA_SHADER_TESS_CTRL
:
6937 shader_info
->tcs
.tcs_vertices_out
= nir
->info
.tess
.tcs_vertices_out
;
6939 case MESA_SHADER_VERTEX
:
6940 shader_info
->vs
.as_es
= options
->key
.vs
.as_es
;
6941 shader_info
->vs
.as_ls
= options
->key
.vs
.as_ls
;
6942 /* in LS mode we need at least 1, invocation id needs 3, handled elsewhere */
6943 if (options
->key
.vs
.as_ls
)
6944 shader_info
->vs
.vgpr_comp_cnt
= MAX2(1, shader_info
->vs
.vgpr_comp_cnt
);
6951 void ac_compile_nir_shader(LLVMTargetMachineRef tm
,
6952 struct ac_shader_binary
*binary
,
6953 struct ac_shader_config
*config
,
6954 struct ac_shader_variant_info
*shader_info
,
6955 struct nir_shader
*const *nir
,
6957 const struct ac_nir_compiler_options
*options
,
6961 LLVMModuleRef llvm_module
= ac_translate_nir_to_llvm(tm
, nir
, nir_count
, shader_info
,
6964 ac_compile_llvm_module(tm
, llvm_module
, binary
, config
, shader_info
, nir
[0]->info
.stage
, dump_shader
, options
->supports_spill
);
6965 for (int i
= 0; i
< nir_count
; ++i
)
6966 ac_fill_shader_info(shader_info
, nir
[i
], options
);
6970 ac_gs_copy_shader_emit(struct nir_to_llvm_context
*ctx
)
6972 LLVMValueRef args
[9];
6973 args
[0] = ctx
->gsvs_ring
;
6974 args
[1] = LLVMBuildMul(ctx
->builder
, ctx
->abi
.vertex_id
, LLVMConstInt(ctx
->ac
.i32
, 4, false), "");
6975 args
[3] = ctx
->ac
.i32_0
;
6976 args
[4] = ctx
->ac
.i32_1
; /* OFFEN */
6977 args
[5] = ctx
->ac
.i32_0
; /* IDXEN */
6978 args
[6] = ctx
->ac
.i32_1
; /* GLC */
6979 args
[7] = ctx
->ac
.i32_1
; /* SLC */
6980 args
[8] = ctx
->ac
.i32_0
; /* TFE */
6984 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
6988 if (!(ctx
->output_mask
& (1ull << i
)))
6991 if (i
== VARYING_SLOT_CLIP_DIST0
) {
6992 /* unpack clip and cull from a single set of slots */
6993 length
= ctx
->num_output_clips
+ ctx
->num_output_culls
;
6998 for (unsigned j
= 0; j
< length
; j
++) {
7000 args
[2] = LLVMConstInt(ctx
->ac
.i32
,
7002 ctx
->gs_max_out_vertices
* 16 * 4, false);
7004 value
= ac_build_intrinsic(&ctx
->ac
,
7005 "llvm.SI.buffer.load.dword.i32.i32",
7006 ctx
->ac
.i32
, args
, 9,
7007 AC_FUNC_ATTR_READONLY
|
7008 AC_FUNC_ATTR_LEGACY
);
7010 LLVMBuildStore(ctx
->builder
,
7011 ac_to_float(&ctx
->ac
, value
), ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, j
)]);
7015 handle_vs_outputs_post(ctx
, false, &ctx
->shader_info
->vs
.outinfo
);
7018 void ac_create_gs_copy_shader(LLVMTargetMachineRef tm
,
7019 struct nir_shader
*geom_shader
,
7020 struct ac_shader_binary
*binary
,
7021 struct ac_shader_config
*config
,
7022 struct ac_shader_variant_info
*shader_info
,
7023 const struct ac_nir_compiler_options
*options
,
7026 struct nir_to_llvm_context ctx
= {0};
7027 ctx
.context
= LLVMContextCreate();
7028 ctx
.module
= LLVMModuleCreateWithNameInContext("shader", ctx
.context
);
7029 ctx
.options
= options
;
7030 ctx
.shader_info
= shader_info
;
7032 ac_llvm_context_init(&ctx
.ac
, ctx
.context
, options
->chip_class
,
7034 ctx
.ac
.module
= ctx
.module
;
7036 ctx
.is_gs_copy_shader
= true;
7037 LLVMSetTarget(ctx
.module
, "amdgcn--");
7039 ctx
.builder
= LLVMCreateBuilderInContext(ctx
.context
);
7040 ctx
.ac
.builder
= ctx
.builder
;
7041 ctx
.stage
= MESA_SHADER_VERTEX
;
7043 create_function(&ctx
, MESA_SHADER_VERTEX
, false, MESA_SHADER_VERTEX
);
7045 ctx
.gs_max_out_vertices
= geom_shader
->info
.gs
.vertices_out
;
7046 ac_setup_rings(&ctx
);
7048 ctx
.num_output_clips
= geom_shader
->info
.clip_distance_array_size
;
7049 ctx
.num_output_culls
= geom_shader
->info
.cull_distance_array_size
;
7051 struct ac_nir_context nir_ctx
= {};
7052 nir_ctx
.ac
= ctx
.ac
;
7053 nir_ctx
.abi
= &ctx
.abi
;
7055 nir_ctx
.nctx
= &ctx
;
7058 nir_foreach_variable(variable
, &geom_shader
->outputs
) {
7059 scan_shader_output_decl(&ctx
, variable
, geom_shader
, MESA_SHADER_VERTEX
);
7060 handle_shader_output_decl(&nir_ctx
, geom_shader
, variable
);
7063 ac_gs_copy_shader_emit(&ctx
);
7067 LLVMBuildRetVoid(ctx
.builder
);
7069 ac_llvm_finalize_module(&ctx
);
7071 ac_compile_llvm_module(tm
, ctx
.module
, binary
, config
, shader_info
,
7073 dump_shader
, options
->supports_spill
);