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 RADEON_LLVM_MAX_INPUTS (VARYING_SLOT_VAR31 + 1)
47 #define RADEON_LLVM_MAX_OUTPUTS (VARYING_SLOT_VAR31 + 1)
49 struct nir_to_llvm_context
;
51 struct ac_nir_context
{
52 struct ac_llvm_context ac
;
53 struct ac_shader_abi
*abi
;
55 gl_shader_stage stage
;
57 struct hash_table
*defs
;
58 struct hash_table
*phis
;
59 struct hash_table
*vars
;
61 LLVMValueRef main_function
;
62 LLVMBasicBlockRef continue_block
;
63 LLVMBasicBlockRef break_block
;
65 LLVMValueRef outputs
[RADEON_LLVM_MAX_OUTPUTS
* 4];
70 struct nir_to_llvm_context
*nctx
; /* TODO get rid of this */
73 struct nir_to_llvm_context
{
74 struct ac_llvm_context ac
;
75 const struct ac_nir_compiler_options
*options
;
76 struct ac_shader_variant_info
*shader_info
;
77 struct ac_shader_abi abi
;
78 struct ac_nir_context
*nir
;
80 unsigned max_workgroup_size
;
81 LLVMContextRef context
;
83 LLVMBuilderRef builder
;
84 LLVMValueRef main_function
;
86 struct hash_table
*defs
;
87 struct hash_table
*phis
;
89 LLVMValueRef descriptor_sets
[AC_UD_MAX_SETS
];
90 LLVMValueRef ring_offsets
;
91 LLVMValueRef push_constants
;
92 LLVMValueRef view_index
;
93 LLVMValueRef num_work_groups
;
94 LLVMValueRef workgroup_ids
[3];
95 LLVMValueRef local_invocation_ids
;
98 LLVMValueRef vertex_buffers
;
99 LLVMValueRef rel_auto_id
;
100 LLVMValueRef vs_prim_id
;
101 LLVMValueRef ls_out_layout
;
102 LLVMValueRef es2gs_offset
;
104 LLVMValueRef tcs_offchip_layout
;
105 LLVMValueRef tcs_out_offsets
;
106 LLVMValueRef tcs_out_layout
;
107 LLVMValueRef tcs_in_layout
;
109 LLVMValueRef merged_wave_info
;
110 LLVMValueRef tess_factor_offset
;
111 LLVMValueRef tes_rel_patch_id
;
115 LLVMValueRef gsvs_ring_stride
;
116 LLVMValueRef gsvs_num_entries
;
117 LLVMValueRef gs2vs_offset
;
118 LLVMValueRef gs_wave_id
;
119 LLVMValueRef gs_vtx_offset
[6];
121 LLVMValueRef esgs_ring
;
122 LLVMValueRef gsvs_ring
;
123 LLVMValueRef hs_ring_tess_offchip
;
124 LLVMValueRef hs_ring_tess_factor
;
126 LLVMValueRef sample_pos_offset
;
127 LLVMValueRef persp_sample
, persp_center
, persp_centroid
;
128 LLVMValueRef linear_sample
, linear_center
, linear_centroid
;
130 gl_shader_stage stage
;
132 LLVMValueRef inputs
[RADEON_LLVM_MAX_INPUTS
* 4];
135 uint64_t output_mask
;
136 uint8_t num_output_clips
;
137 uint8_t num_output_culls
;
139 bool is_gs_copy_shader
;
140 LLVMValueRef gs_next_vertex
;
141 unsigned gs_max_out_vertices
;
143 unsigned tes_primitive_mode
;
144 uint64_t tess_outputs_written
;
145 uint64_t tess_patch_outputs_written
;
147 uint32_t tcs_patch_outputs_read
;
148 uint64_t tcs_outputs_read
;
151 static inline struct nir_to_llvm_context
*
152 nir_to_llvm_context_from_abi(struct ac_shader_abi
*abi
)
154 struct nir_to_llvm_context
*ctx
= NULL
;
155 return container_of(abi
, ctx
, abi
);
158 static LLVMValueRef
get_sampler_desc(struct ac_nir_context
*ctx
,
159 const nir_deref_var
*deref
,
160 enum ac_descriptor_type desc_type
,
161 const nir_tex_instr
*instr
,
162 bool image
, bool write
);
164 static unsigned radeon_llvm_reg_index_soa(unsigned index
, unsigned chan
)
166 return (index
* 4) + chan
;
169 static unsigned shader_io_get_unique_index(gl_varying_slot slot
)
171 /* handle patch indices separate */
172 if (slot
== VARYING_SLOT_TESS_LEVEL_OUTER
)
174 if (slot
== VARYING_SLOT_TESS_LEVEL_INNER
)
176 if (slot
>= VARYING_SLOT_PATCH0
&& slot
<= VARYING_SLOT_TESS_MAX
)
177 return 2 + (slot
- VARYING_SLOT_PATCH0
);
179 if (slot
== VARYING_SLOT_POS
)
181 if (slot
== VARYING_SLOT_PSIZ
)
183 if (slot
== VARYING_SLOT_CLIP_DIST0
)
185 /* 3 is reserved for clip dist as well */
186 if (slot
>= VARYING_SLOT_VAR0
&& slot
<= VARYING_SLOT_VAR31
)
187 return 4 + (slot
- VARYING_SLOT_VAR0
);
188 unreachable("illegal slot in get unique index\n");
191 static void set_llvm_calling_convention(LLVMValueRef func
,
192 gl_shader_stage stage
)
194 enum radeon_llvm_calling_convention calling_conv
;
197 case MESA_SHADER_VERTEX
:
198 case MESA_SHADER_TESS_EVAL
:
199 calling_conv
= RADEON_LLVM_AMDGPU_VS
;
201 case MESA_SHADER_GEOMETRY
:
202 calling_conv
= RADEON_LLVM_AMDGPU_GS
;
204 case MESA_SHADER_TESS_CTRL
:
205 calling_conv
= HAVE_LLVM
>= 0x0500 ? RADEON_LLVM_AMDGPU_HS
: RADEON_LLVM_AMDGPU_VS
;
207 case MESA_SHADER_FRAGMENT
:
208 calling_conv
= RADEON_LLVM_AMDGPU_PS
;
210 case MESA_SHADER_COMPUTE
:
211 calling_conv
= RADEON_LLVM_AMDGPU_CS
;
214 unreachable("Unhandle shader type");
217 LLVMSetFunctionCallConv(func
, calling_conv
);
222 LLVMTypeRef types
[MAX_ARGS
];
223 LLVMValueRef
*assign
[MAX_ARGS
];
224 unsigned array_params_mask
;
227 uint8_t num_sgprs_used
;
228 uint8_t num_vgprs_used
;
231 enum ac_arg_regfile
{
237 add_arg(struct arg_info
*info
, enum ac_arg_regfile regfile
, LLVMTypeRef type
,
238 LLVMValueRef
*param_ptr
)
240 assert(info
->count
< MAX_ARGS
);
242 info
->assign
[info
->count
] = param_ptr
;
243 info
->types
[info
->count
] = type
;
246 if (regfile
== ARG_SGPR
) {
247 info
->num_sgprs_used
+= ac_get_type_size(type
) / 4;
250 assert(regfile
== ARG_VGPR
);
251 info
->num_vgprs_used
+= ac_get_type_size(type
) / 4;
256 add_array_arg(struct arg_info
*info
, LLVMTypeRef type
, LLVMValueRef
*param_ptr
)
258 info
->array_params_mask
|= (1 << info
->count
);
259 add_arg(info
, ARG_SGPR
, type
, param_ptr
);
262 static void assign_arguments(LLVMValueRef main_function
,
263 struct arg_info
*info
)
266 for (i
= 0; i
< info
->count
; i
++) {
268 *info
->assign
[i
] = LLVMGetParam(main_function
, i
);
273 create_llvm_function(LLVMContextRef ctx
, LLVMModuleRef module
,
274 LLVMBuilderRef builder
, LLVMTypeRef
*return_types
,
275 unsigned num_return_elems
,
276 struct arg_info
*args
,
277 unsigned max_workgroup_size
,
280 LLVMTypeRef main_function_type
, ret_type
;
281 LLVMBasicBlockRef main_function_body
;
283 if (num_return_elems
)
284 ret_type
= LLVMStructTypeInContext(ctx
, return_types
,
285 num_return_elems
, true);
287 ret_type
= LLVMVoidTypeInContext(ctx
);
289 /* Setup the function */
291 LLVMFunctionType(ret_type
, args
->types
, args
->count
, 0);
292 LLVMValueRef main_function
=
293 LLVMAddFunction(module
, "main", main_function_type
);
295 LLVMAppendBasicBlockInContext(ctx
, main_function
, "main_body");
296 LLVMPositionBuilderAtEnd(builder
, main_function_body
);
298 LLVMSetFunctionCallConv(main_function
, RADEON_LLVM_AMDGPU_CS
);
299 for (unsigned i
= 0; i
< args
->sgpr_count
; ++i
) {
300 ac_add_function_attr(ctx
, main_function
, i
+ 1, AC_FUNC_ATTR_INREG
);
302 if (args
->array_params_mask
& (1 << i
)) {
303 LLVMValueRef P
= LLVMGetParam(main_function
, i
);
304 ac_add_function_attr(ctx
, main_function
, i
+ 1, AC_FUNC_ATTR_NOALIAS
);
305 ac_add_attr_dereferenceable(P
, UINT64_MAX
);
309 if (max_workgroup_size
) {
310 ac_llvm_add_target_dep_function_attr(main_function
,
311 "amdgpu-max-work-group-size",
315 /* These were copied from some LLVM test. */
316 LLVMAddTargetDependentFunctionAttr(main_function
,
317 "less-precise-fpmad",
319 LLVMAddTargetDependentFunctionAttr(main_function
,
322 LLVMAddTargetDependentFunctionAttr(main_function
,
325 LLVMAddTargetDependentFunctionAttr(main_function
,
328 LLVMAddTargetDependentFunctionAttr(main_function
,
329 "no-signed-zeros-fp-math",
332 return main_function
;
335 static int get_elem_bits(struct ac_llvm_context
*ctx
, LLVMTypeRef type
)
337 if (LLVMGetTypeKind(type
) == LLVMVectorTypeKind
)
338 type
= LLVMGetElementType(type
);
340 if (LLVMGetTypeKind(type
) == LLVMIntegerTypeKind
)
341 return LLVMGetIntTypeWidth(type
);
343 if (type
== ctx
->f16
)
345 if (type
== ctx
->f32
)
347 if (type
== ctx
->f64
)
350 unreachable("Unhandled type kind in get_elem_bits");
353 static LLVMValueRef
unpack_param(struct ac_llvm_context
*ctx
,
354 LLVMValueRef param
, unsigned rshift
,
357 LLVMValueRef value
= param
;
359 value
= LLVMBuildLShr(ctx
->builder
, value
,
360 LLVMConstInt(ctx
->i32
, rshift
, false), "");
362 if (rshift
+ bitwidth
< 32) {
363 unsigned mask
= (1 << bitwidth
) - 1;
364 value
= LLVMBuildAnd(ctx
->builder
, value
,
365 LLVMConstInt(ctx
->i32
, mask
, false), "");
370 static LLVMValueRef
get_rel_patch_id(struct nir_to_llvm_context
*ctx
)
372 switch (ctx
->stage
) {
373 case MESA_SHADER_TESS_CTRL
:
374 return unpack_param(&ctx
->ac
, ctx
->abi
.tcs_rel_ids
, 0, 8);
375 case MESA_SHADER_TESS_EVAL
:
376 return ctx
->tes_rel_patch_id
;
379 unreachable("Illegal stage");
383 /* Tessellation shaders pass outputs to the next shader using LDS.
385 * LS outputs = TCS inputs
386 * TCS outputs = TES inputs
389 * - TCS inputs for patch 0
390 * - TCS inputs for patch 1
391 * - TCS inputs for patch 2 = get_tcs_in_current_patch_offset (if RelPatchID==2)
393 * - TCS outputs for patch 0 = get_tcs_out_patch0_offset
394 * - Per-patch TCS outputs for patch 0 = get_tcs_out_patch0_patch_data_offset
395 * - TCS outputs for patch 1
396 * - Per-patch TCS outputs for patch 1
397 * - TCS outputs for patch 2 = get_tcs_out_current_patch_offset (if RelPatchID==2)
398 * - Per-patch TCS outputs for patch 2 = get_tcs_out_current_patch_data_offset (if RelPatchID==2)
401 * All three shaders VS(LS), TCS, TES share the same LDS space.
404 get_tcs_in_patch_stride(struct nir_to_llvm_context
*ctx
)
406 if (ctx
->stage
== MESA_SHADER_VERTEX
)
407 return unpack_param(&ctx
->ac
, ctx
->ls_out_layout
, 0, 13);
408 else if (ctx
->stage
== MESA_SHADER_TESS_CTRL
)
409 return unpack_param(&ctx
->ac
, ctx
->tcs_in_layout
, 0, 13);
417 get_tcs_out_patch_stride(struct nir_to_llvm_context
*ctx
)
419 return unpack_param(&ctx
->ac
, ctx
->tcs_out_layout
, 0, 13);
423 get_tcs_out_patch0_offset(struct nir_to_llvm_context
*ctx
)
425 return LLVMBuildMul(ctx
->builder
,
426 unpack_param(&ctx
->ac
, ctx
->tcs_out_offsets
, 0, 16),
427 LLVMConstInt(ctx
->ac
.i32
, 4, false), "");
431 get_tcs_out_patch0_patch_data_offset(struct nir_to_llvm_context
*ctx
)
433 return LLVMBuildMul(ctx
->builder
,
434 unpack_param(&ctx
->ac
, ctx
->tcs_out_offsets
, 16, 16),
435 LLVMConstInt(ctx
->ac
.i32
, 4, false), "");
439 get_tcs_in_current_patch_offset(struct nir_to_llvm_context
*ctx
)
441 LLVMValueRef patch_stride
= get_tcs_in_patch_stride(ctx
);
442 LLVMValueRef rel_patch_id
= get_rel_patch_id(ctx
);
444 return LLVMBuildMul(ctx
->builder
, patch_stride
, rel_patch_id
, "");
448 get_tcs_out_current_patch_offset(struct nir_to_llvm_context
*ctx
)
450 LLVMValueRef patch0_offset
= get_tcs_out_patch0_offset(ctx
);
451 LLVMValueRef patch_stride
= get_tcs_out_patch_stride(ctx
);
452 LLVMValueRef rel_patch_id
= get_rel_patch_id(ctx
);
454 return LLVMBuildAdd(ctx
->builder
, patch0_offset
,
455 LLVMBuildMul(ctx
->builder
, patch_stride
,
461 get_tcs_out_current_patch_data_offset(struct nir_to_llvm_context
*ctx
)
463 LLVMValueRef patch0_patch_data_offset
=
464 get_tcs_out_patch0_patch_data_offset(ctx
);
465 LLVMValueRef patch_stride
= get_tcs_out_patch_stride(ctx
);
466 LLVMValueRef rel_patch_id
= get_rel_patch_id(ctx
);
468 return LLVMBuildAdd(ctx
->builder
, patch0_patch_data_offset
,
469 LLVMBuildMul(ctx
->builder
, patch_stride
,
475 set_loc(struct ac_userdata_info
*ud_info
, uint8_t *sgpr_idx
, uint8_t num_sgprs
,
476 uint32_t indirect_offset
)
478 ud_info
->sgpr_idx
= *sgpr_idx
;
479 ud_info
->num_sgprs
= num_sgprs
;
480 ud_info
->indirect
= indirect_offset
> 0;
481 ud_info
->indirect_offset
= indirect_offset
;
482 *sgpr_idx
+= num_sgprs
;
486 set_loc_shader(struct nir_to_llvm_context
*ctx
, int idx
, uint8_t *sgpr_idx
,
489 struct ac_userdata_info
*ud_info
=
490 &ctx
->shader_info
->user_sgprs_locs
.shader_data
[idx
];
493 set_loc(ud_info
, sgpr_idx
, num_sgprs
, 0);
497 set_loc_desc(struct nir_to_llvm_context
*ctx
, int idx
, uint8_t *sgpr_idx
,
498 uint32_t indirect_offset
)
500 struct ac_userdata_info
*ud_info
=
501 &ctx
->shader_info
->user_sgprs_locs
.descriptor_sets
[idx
];
504 set_loc(ud_info
, sgpr_idx
, 2, indirect_offset
);
507 struct user_sgpr_info
{
508 bool need_ring_offsets
;
510 bool indirect_all_descriptor_sets
;
513 static bool needs_view_index_sgpr(struct nir_to_llvm_context
*ctx
,
514 gl_shader_stage stage
)
517 case MESA_SHADER_VERTEX
:
518 if (ctx
->shader_info
->info
.needs_multiview_view_index
||
519 (!ctx
->options
->key
.vs
.as_es
&& !ctx
->options
->key
.vs
.as_ls
&& ctx
->options
->key
.has_multiview_view_index
))
522 case MESA_SHADER_TESS_EVAL
:
523 if (ctx
->shader_info
->info
.needs_multiview_view_index
|| (!ctx
->options
->key
.tes
.as_es
&& ctx
->options
->key
.has_multiview_view_index
))
526 case MESA_SHADER_GEOMETRY
:
527 case MESA_SHADER_TESS_CTRL
:
528 if (ctx
->shader_info
->info
.needs_multiview_view_index
)
537 static void allocate_user_sgprs(struct nir_to_llvm_context
*ctx
,
538 gl_shader_stage stage
,
539 bool needs_view_index
,
540 struct user_sgpr_info
*user_sgpr_info
)
542 memset(user_sgpr_info
, 0, sizeof(struct user_sgpr_info
));
544 /* until we sort out scratch/global buffers always assign ring offsets for gs/vs/es */
545 if (stage
== MESA_SHADER_GEOMETRY
||
546 stage
== MESA_SHADER_VERTEX
||
547 stage
== MESA_SHADER_TESS_CTRL
||
548 stage
== MESA_SHADER_TESS_EVAL
||
549 ctx
->is_gs_copy_shader
)
550 user_sgpr_info
->need_ring_offsets
= true;
552 if (stage
== MESA_SHADER_FRAGMENT
&&
553 ctx
->shader_info
->info
.ps
.needs_sample_positions
)
554 user_sgpr_info
->need_ring_offsets
= true;
556 /* 2 user sgprs will nearly always be allocated for scratch/rings */
557 if (ctx
->options
->supports_spill
|| user_sgpr_info
->need_ring_offsets
) {
558 user_sgpr_info
->sgpr_count
+= 2;
561 /* FIXME: fix the number of user sgprs for merged shaders on GFX9 */
563 case MESA_SHADER_COMPUTE
:
564 if (ctx
->shader_info
->info
.cs
.uses_grid_size
)
565 user_sgpr_info
->sgpr_count
+= 3;
567 case MESA_SHADER_FRAGMENT
:
568 user_sgpr_info
->sgpr_count
+= ctx
->shader_info
->info
.ps
.needs_sample_positions
;
570 case MESA_SHADER_VERTEX
:
571 if (!ctx
->is_gs_copy_shader
) {
572 user_sgpr_info
->sgpr_count
+= ctx
->shader_info
->info
.vs
.has_vertex_buffers
? 2 : 0;
573 if (ctx
->shader_info
->info
.vs
.needs_draw_id
) {
574 user_sgpr_info
->sgpr_count
+= 3;
576 user_sgpr_info
->sgpr_count
+= 2;
579 if (ctx
->options
->key
.vs
.as_ls
)
580 user_sgpr_info
->sgpr_count
++;
582 case MESA_SHADER_TESS_CTRL
:
583 user_sgpr_info
->sgpr_count
+= 4;
585 case MESA_SHADER_TESS_EVAL
:
586 user_sgpr_info
->sgpr_count
+= 1;
588 case MESA_SHADER_GEOMETRY
:
589 user_sgpr_info
->sgpr_count
+= 2;
595 if (needs_view_index
)
596 user_sgpr_info
->sgpr_count
++;
598 if (ctx
->shader_info
->info
.loads_push_constants
)
599 user_sgpr_info
->sgpr_count
+= 2;
601 uint32_t available_sgprs
= ctx
->options
->chip_class
>= GFX9
? 32 : 16;
602 uint32_t remaining_sgprs
= available_sgprs
- user_sgpr_info
->sgpr_count
;
604 if (remaining_sgprs
/ 2 < util_bitcount(ctx
->shader_info
->info
.desc_set_used_mask
)) {
605 user_sgpr_info
->sgpr_count
+= 2;
606 user_sgpr_info
->indirect_all_descriptor_sets
= true;
608 user_sgpr_info
->sgpr_count
+= util_bitcount(ctx
->shader_info
->info
.desc_set_used_mask
) * 2;
613 declare_global_input_sgprs(struct nir_to_llvm_context
*ctx
,
614 gl_shader_stage stage
,
615 bool has_previous_stage
,
616 gl_shader_stage previous_stage
,
617 const struct user_sgpr_info
*user_sgpr_info
,
618 struct arg_info
*args
,
619 LLVMValueRef
*desc_sets
)
621 LLVMTypeRef type
= ac_array_in_const_addr_space(ctx
->ac
.i8
);
622 unsigned num_sets
= ctx
->options
->layout
?
623 ctx
->options
->layout
->num_sets
: 0;
624 unsigned stage_mask
= 1 << stage
;
626 if (has_previous_stage
)
627 stage_mask
|= 1 << previous_stage
;
629 /* 1 for each descriptor set */
630 if (!user_sgpr_info
->indirect_all_descriptor_sets
) {
631 for (unsigned i
= 0; i
< num_sets
; ++i
) {
632 if (ctx
->options
->layout
->set
[i
].layout
->shader_stages
& stage_mask
) {
633 add_array_arg(args
, type
,
634 &ctx
->descriptor_sets
[i
]);
638 add_array_arg(args
, ac_array_in_const_addr_space(type
), desc_sets
);
641 if (ctx
->shader_info
->info
.loads_push_constants
) {
642 /* 1 for push constants and dynamic descriptors */
643 add_array_arg(args
, type
, &ctx
->push_constants
);
648 declare_vs_specific_input_sgprs(struct nir_to_llvm_context
*ctx
,
649 gl_shader_stage stage
,
650 bool has_previous_stage
,
651 gl_shader_stage previous_stage
,
652 struct arg_info
*args
)
654 if (!ctx
->is_gs_copy_shader
&&
655 (stage
== MESA_SHADER_VERTEX
||
656 (has_previous_stage
&& previous_stage
== MESA_SHADER_VERTEX
))) {
657 if (ctx
->shader_info
->info
.vs
.has_vertex_buffers
) {
658 add_arg(args
, ARG_SGPR
, ac_array_in_const_addr_space(ctx
->ac
.v4i32
),
659 &ctx
->vertex_buffers
);
661 add_arg(args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->abi
.base_vertex
);
662 add_arg(args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->abi
.start_instance
);
663 if (ctx
->shader_info
->info
.vs
.needs_draw_id
) {
664 add_arg(args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->abi
.draw_id
);
670 declare_vs_input_vgprs(struct nir_to_llvm_context
*ctx
, struct arg_info
*args
)
672 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->abi
.vertex_id
);
673 if (!ctx
->is_gs_copy_shader
) {
674 if (ctx
->options
->key
.vs
.as_ls
) {
675 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->rel_auto_id
);
676 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->abi
.instance_id
);
678 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->abi
.instance_id
);
679 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->vs_prim_id
);
681 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, NULL
); /* unused */
686 declare_tes_input_vgprs(struct nir_to_llvm_context
*ctx
, struct arg_info
*args
)
688 add_arg(args
, ARG_VGPR
, ctx
->ac
.f32
, &ctx
->tes_u
);
689 add_arg(args
, ARG_VGPR
, ctx
->ac
.f32
, &ctx
->tes_v
);
690 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->tes_rel_patch_id
);
691 add_arg(args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->abi
.tes_patch_id
);
695 set_global_input_locs(struct nir_to_llvm_context
*ctx
, gl_shader_stage stage
,
696 bool has_previous_stage
, gl_shader_stage previous_stage
,
697 const struct user_sgpr_info
*user_sgpr_info
,
698 LLVMValueRef desc_sets
, uint8_t *user_sgpr_idx
)
700 unsigned num_sets
= ctx
->options
->layout
?
701 ctx
->options
->layout
->num_sets
: 0;
702 unsigned stage_mask
= 1 << stage
;
704 if (has_previous_stage
)
705 stage_mask
|= 1 << previous_stage
;
707 if (!user_sgpr_info
->indirect_all_descriptor_sets
) {
708 for (unsigned i
= 0; i
< num_sets
; ++i
) {
709 if (ctx
->options
->layout
->set
[i
].layout
->shader_stages
& stage_mask
) {
710 set_loc_desc(ctx
, i
, user_sgpr_idx
, 0);
712 ctx
->descriptor_sets
[i
] = NULL
;
715 set_loc_shader(ctx
, AC_UD_INDIRECT_DESCRIPTOR_SETS
,
718 for (unsigned i
= 0; i
< num_sets
; ++i
) {
719 if (ctx
->options
->layout
->set
[i
].layout
->shader_stages
& stage_mask
) {
720 set_loc_desc(ctx
, i
, user_sgpr_idx
, i
* 8);
721 ctx
->descriptor_sets
[i
] =
722 ac_build_load_to_sgpr(&ctx
->ac
,
724 LLVMConstInt(ctx
->ac
.i32
, i
, false));
727 ctx
->descriptor_sets
[i
] = NULL
;
729 ctx
->shader_info
->need_indirect_descriptor_sets
= true;
732 if (ctx
->shader_info
->info
.loads_push_constants
) {
733 set_loc_shader(ctx
, AC_UD_PUSH_CONSTANTS
, user_sgpr_idx
, 2);
738 set_vs_specific_input_locs(struct nir_to_llvm_context
*ctx
,
739 gl_shader_stage stage
, bool has_previous_stage
,
740 gl_shader_stage previous_stage
,
741 uint8_t *user_sgpr_idx
)
743 if (!ctx
->is_gs_copy_shader
&&
744 (stage
== MESA_SHADER_VERTEX
||
745 (has_previous_stage
&& previous_stage
== MESA_SHADER_VERTEX
))) {
746 if (ctx
->shader_info
->info
.vs
.has_vertex_buffers
) {
747 set_loc_shader(ctx
, AC_UD_VS_VERTEX_BUFFERS
,
752 if (ctx
->shader_info
->info
.vs
.needs_draw_id
)
755 set_loc_shader(ctx
, AC_UD_VS_BASE_VERTEX_START_INSTANCE
,
756 user_sgpr_idx
, vs_num
);
760 static void create_function(struct nir_to_llvm_context
*ctx
,
761 gl_shader_stage stage
,
762 bool has_previous_stage
,
763 gl_shader_stage previous_stage
)
765 uint8_t user_sgpr_idx
;
766 struct user_sgpr_info user_sgpr_info
;
767 struct arg_info args
= {};
768 LLVMValueRef desc_sets
;
769 bool needs_view_index
= needs_view_index_sgpr(ctx
, stage
);
770 allocate_user_sgprs(ctx
, stage
, needs_view_index
, &user_sgpr_info
);
772 if (user_sgpr_info
.need_ring_offsets
&& !ctx
->options
->supports_spill
) {
773 add_arg(&args
, ARG_SGPR
, ac_array_in_const_addr_space(ctx
->ac
.v4i32
),
778 case MESA_SHADER_COMPUTE
:
779 declare_global_input_sgprs(ctx
, stage
, has_previous_stage
,
780 previous_stage
, &user_sgpr_info
,
783 if (ctx
->shader_info
->info
.cs
.uses_grid_size
) {
784 add_arg(&args
, ARG_SGPR
, ctx
->ac
.v3i32
,
785 &ctx
->num_work_groups
);
788 for (int i
= 0; i
< 3; i
++) {
789 ctx
->workgroup_ids
[i
] = NULL
;
790 if (ctx
->shader_info
->info
.cs
.uses_block_id
[i
]) {
791 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
792 &ctx
->workgroup_ids
[i
]);
796 if (ctx
->shader_info
->info
.cs
.uses_local_invocation_idx
)
797 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->tg_size
);
798 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v3i32
,
799 &ctx
->local_invocation_ids
);
801 case MESA_SHADER_VERTEX
:
802 declare_global_input_sgprs(ctx
, stage
, has_previous_stage
,
803 previous_stage
, &user_sgpr_info
,
805 declare_vs_specific_input_sgprs(ctx
, stage
, has_previous_stage
,
806 previous_stage
, &args
);
808 if (needs_view_index
)
809 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->view_index
);
810 if (ctx
->options
->key
.vs
.as_es
)
811 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
813 else if (ctx
->options
->key
.vs
.as_ls
)
814 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
815 &ctx
->ls_out_layout
);
817 declare_vs_input_vgprs(ctx
, &args
);
819 case MESA_SHADER_TESS_CTRL
:
820 if (has_previous_stage
) {
821 // First 6 system regs
822 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->oc_lds
);
823 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
824 &ctx
->merged_wave_info
);
825 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
826 &ctx
->tess_factor_offset
);
828 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
); // scratch offset
829 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
); // unknown
830 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
); // unknown
832 declare_global_input_sgprs(ctx
, stage
,
835 &user_sgpr_info
, &args
,
837 declare_vs_specific_input_sgprs(ctx
, stage
,
839 previous_stage
, &args
);
841 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
842 &ctx
->ls_out_layout
);
844 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
845 &ctx
->tcs_offchip_layout
);
846 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
847 &ctx
->tcs_out_offsets
);
848 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
849 &ctx
->tcs_out_layout
);
850 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
851 &ctx
->tcs_in_layout
);
852 if (needs_view_index
)
853 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
856 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
857 &ctx
->abi
.tcs_patch_id
);
858 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
859 &ctx
->abi
.tcs_rel_ids
);
861 declare_vs_input_vgprs(ctx
, &args
);
863 declare_global_input_sgprs(ctx
, stage
,
866 &user_sgpr_info
, &args
,
869 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
870 &ctx
->tcs_offchip_layout
);
871 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
872 &ctx
->tcs_out_offsets
);
873 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
874 &ctx
->tcs_out_layout
);
875 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
876 &ctx
->tcs_in_layout
);
877 if (needs_view_index
)
878 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
881 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->oc_lds
);
882 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
883 &ctx
->tess_factor_offset
);
884 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
885 &ctx
->abi
.tcs_patch_id
);
886 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
887 &ctx
->abi
.tcs_rel_ids
);
890 case MESA_SHADER_TESS_EVAL
:
891 declare_global_input_sgprs(ctx
, stage
, has_previous_stage
,
892 previous_stage
, &user_sgpr_info
,
895 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->tcs_offchip_layout
);
896 if (needs_view_index
)
897 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->view_index
);
899 if (ctx
->options
->key
.tes
.as_es
) {
900 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->oc_lds
);
901 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
);
902 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
905 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
);
906 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->oc_lds
);
908 declare_tes_input_vgprs(ctx
, &args
);
910 case MESA_SHADER_GEOMETRY
:
911 if (has_previous_stage
) {
912 // First 6 system regs
913 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
915 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
916 &ctx
->merged_wave_info
);
917 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->oc_lds
);
919 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
); // scratch offset
920 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
); // unknown
921 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, NULL
); // unknown
923 declare_global_input_sgprs(ctx
, stage
,
926 &user_sgpr_info
, &args
,
929 if (previous_stage
== MESA_SHADER_TESS_EVAL
) {
930 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
931 &ctx
->tcs_offchip_layout
);
933 declare_vs_specific_input_sgprs(ctx
, stage
,
939 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
940 &ctx
->gsvs_ring_stride
);
941 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
942 &ctx
->gsvs_num_entries
);
943 if (needs_view_index
)
944 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
947 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
948 &ctx
->gs_vtx_offset
[0]);
949 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
950 &ctx
->gs_vtx_offset
[2]);
951 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
952 &ctx
->abi
.gs_prim_id
);
953 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
954 &ctx
->abi
.gs_invocation_id
);
955 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
956 &ctx
->gs_vtx_offset
[4]);
958 if (previous_stage
== MESA_SHADER_VERTEX
) {
959 declare_vs_input_vgprs(ctx
, &args
);
961 declare_tes_input_vgprs(ctx
, &args
);
964 declare_global_input_sgprs(ctx
, stage
,
967 &user_sgpr_info
, &args
,
970 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
971 &ctx
->gsvs_ring_stride
);
972 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
973 &ctx
->gsvs_num_entries
);
974 if (needs_view_index
)
975 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
978 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->gs2vs_offset
);
979 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->gs_wave_id
);
980 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
981 &ctx
->gs_vtx_offset
[0]);
982 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
983 &ctx
->gs_vtx_offset
[1]);
984 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
985 &ctx
->abi
.gs_prim_id
);
986 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
987 &ctx
->gs_vtx_offset
[2]);
988 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
989 &ctx
->gs_vtx_offset
[3]);
990 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
991 &ctx
->gs_vtx_offset
[4]);
992 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
993 &ctx
->gs_vtx_offset
[5]);
994 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
,
995 &ctx
->abi
.gs_invocation_id
);
998 case MESA_SHADER_FRAGMENT
:
999 declare_global_input_sgprs(ctx
, stage
, has_previous_stage
,
1000 previous_stage
, &user_sgpr_info
,
1003 if (ctx
->shader_info
->info
.ps
.needs_sample_positions
)
1004 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
,
1005 &ctx
->sample_pos_offset
);
1007 add_arg(&args
, ARG_SGPR
, ctx
->ac
.i32
, &ctx
->abi
.prim_mask
);
1008 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v2i32
, &ctx
->persp_sample
);
1009 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v2i32
, &ctx
->persp_center
);
1010 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v2i32
, &ctx
->persp_centroid
);
1011 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v3i32
, NULL
); /* persp pull model */
1012 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v2i32
, &ctx
->linear_sample
);
1013 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v2i32
, &ctx
->linear_center
);
1014 add_arg(&args
, ARG_VGPR
, ctx
->ac
.v2i32
, &ctx
->linear_centroid
);
1015 add_arg(&args
, ARG_VGPR
, ctx
->ac
.f32
, NULL
); /* line stipple tex */
1016 add_arg(&args
, ARG_VGPR
, ctx
->ac
.f32
, &ctx
->abi
.frag_pos
[0]);
1017 add_arg(&args
, ARG_VGPR
, ctx
->ac
.f32
, &ctx
->abi
.frag_pos
[1]);
1018 add_arg(&args
, ARG_VGPR
, ctx
->ac
.f32
, &ctx
->abi
.frag_pos
[2]);
1019 add_arg(&args
, ARG_VGPR
, ctx
->ac
.f32
, &ctx
->abi
.frag_pos
[3]);
1020 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->abi
.front_face
);
1021 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->abi
.ancillary
);
1022 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
, &ctx
->abi
.sample_coverage
);
1023 add_arg(&args
, ARG_VGPR
, ctx
->ac
.i32
, NULL
); /* fixed pt */
1026 unreachable("Shader stage not implemented");
1029 ctx
->main_function
= create_llvm_function(
1030 ctx
->context
, ctx
->module
, ctx
->builder
, NULL
, 0, &args
,
1031 ctx
->max_workgroup_size
,
1032 ctx
->options
->unsafe_math
);
1033 set_llvm_calling_convention(ctx
->main_function
, stage
);
1036 ctx
->shader_info
->num_input_vgprs
= 0;
1037 ctx
->shader_info
->num_input_sgprs
= ctx
->options
->supports_spill
? 2 : 0;
1039 ctx
->shader_info
->num_input_sgprs
+= args
.num_sgprs_used
;
1041 if (ctx
->stage
!= MESA_SHADER_FRAGMENT
)
1042 ctx
->shader_info
->num_input_vgprs
= args
.num_vgprs_used
;
1044 assign_arguments(ctx
->main_function
, &args
);
1048 if (ctx
->options
->supports_spill
|| user_sgpr_info
.need_ring_offsets
) {
1049 set_loc_shader(ctx
, AC_UD_SCRATCH_RING_OFFSETS
,
1051 if (ctx
->options
->supports_spill
) {
1052 ctx
->ring_offsets
= ac_build_intrinsic(&ctx
->ac
, "llvm.amdgcn.implicit.buffer.ptr",
1053 LLVMPointerType(ctx
->ac
.i8
, AC_CONST_ADDR_SPACE
),
1054 NULL
, 0, AC_FUNC_ATTR_READNONE
);
1055 ctx
->ring_offsets
= LLVMBuildBitCast(ctx
->builder
, ctx
->ring_offsets
,
1056 ac_array_in_const_addr_space(ctx
->ac
.v4i32
), "");
1060 /* For merged shaders the user SGPRs start at 8, with 8 system SGPRs in front (including
1061 * the rw_buffers at s0/s1. With user SGPR0 = s8, lets restart the count from 0 */
1062 if (has_previous_stage
)
1065 set_global_input_locs(ctx
, stage
, has_previous_stage
, previous_stage
,
1066 &user_sgpr_info
, desc_sets
, &user_sgpr_idx
);
1069 case MESA_SHADER_COMPUTE
:
1070 if (ctx
->shader_info
->info
.cs
.uses_grid_size
) {
1071 set_loc_shader(ctx
, AC_UD_CS_GRID_SIZE
,
1075 case MESA_SHADER_VERTEX
:
1076 set_vs_specific_input_locs(ctx
, stage
, has_previous_stage
,
1077 previous_stage
, &user_sgpr_idx
);
1078 if (ctx
->view_index
)
1079 set_loc_shader(ctx
, AC_UD_VIEW_INDEX
, &user_sgpr_idx
, 1);
1080 if (ctx
->options
->key
.vs
.as_ls
) {
1081 set_loc_shader(ctx
, AC_UD_VS_LS_TCS_IN_LAYOUT
,
1084 if (ctx
->options
->key
.vs
.as_ls
)
1085 ac_declare_lds_as_pointer(&ctx
->ac
);
1087 case MESA_SHADER_TESS_CTRL
:
1088 set_vs_specific_input_locs(ctx
, stage
, has_previous_stage
,
1089 previous_stage
, &user_sgpr_idx
);
1090 if (has_previous_stage
)
1091 set_loc_shader(ctx
, AC_UD_VS_LS_TCS_IN_LAYOUT
,
1093 set_loc_shader(ctx
, AC_UD_TCS_OFFCHIP_LAYOUT
, &user_sgpr_idx
, 4);
1094 if (ctx
->view_index
)
1095 set_loc_shader(ctx
, AC_UD_VIEW_INDEX
, &user_sgpr_idx
, 1);
1096 ac_declare_lds_as_pointer(&ctx
->ac
);
1098 case MESA_SHADER_TESS_EVAL
:
1099 set_loc_shader(ctx
, AC_UD_TES_OFFCHIP_LAYOUT
, &user_sgpr_idx
, 1);
1100 if (ctx
->view_index
)
1101 set_loc_shader(ctx
, AC_UD_VIEW_INDEX
, &user_sgpr_idx
, 1);
1103 case MESA_SHADER_GEOMETRY
:
1104 if (has_previous_stage
) {
1105 if (previous_stage
== MESA_SHADER_VERTEX
)
1106 set_vs_specific_input_locs(ctx
, stage
,
1111 set_loc_shader(ctx
, AC_UD_TES_OFFCHIP_LAYOUT
,
1114 set_loc_shader(ctx
, AC_UD_GS_VS_RING_STRIDE_ENTRIES
,
1116 if (ctx
->view_index
)
1117 set_loc_shader(ctx
, AC_UD_VIEW_INDEX
, &user_sgpr_idx
, 1);
1118 if (has_previous_stage
)
1119 ac_declare_lds_as_pointer(&ctx
->ac
);
1121 case MESA_SHADER_FRAGMENT
:
1122 if (ctx
->shader_info
->info
.ps
.needs_sample_positions
) {
1123 set_loc_shader(ctx
, AC_UD_PS_SAMPLE_POS_OFFSET
,
1128 unreachable("Shader stage not implemented");
1131 ctx
->shader_info
->num_user_sgprs
= user_sgpr_idx
;
1134 static LLVMValueRef
trim_vector(struct ac_llvm_context
*ctx
,
1135 LLVMValueRef value
, unsigned count
)
1137 unsigned num_components
= ac_get_llvm_num_components(value
);
1138 if (count
== num_components
)
1141 LLVMValueRef masks
[] = {
1142 LLVMConstInt(ctx
->i32
, 0, false), LLVMConstInt(ctx
->i32
, 1, false),
1143 LLVMConstInt(ctx
->i32
, 2, false), LLVMConstInt(ctx
->i32
, 3, false)};
1146 return LLVMBuildExtractElement(ctx
->builder
, value
, masks
[0],
1149 LLVMValueRef swizzle
= LLVMConstVector(masks
, count
);
1150 return LLVMBuildShuffleVector(ctx
->builder
, value
, value
, swizzle
, "");
1154 build_store_values_extended(struct ac_llvm_context
*ac
,
1155 LLVMValueRef
*values
,
1156 unsigned value_count
,
1157 unsigned value_stride
,
1160 LLVMBuilderRef builder
= ac
->builder
;
1163 for (i
= 0; i
< value_count
; i
++) {
1164 LLVMValueRef ptr
= values
[i
* value_stride
];
1165 LLVMValueRef index
= LLVMConstInt(ac
->i32
, i
, false);
1166 LLVMValueRef value
= LLVMBuildExtractElement(builder
, vec
, index
, "");
1167 LLVMBuildStore(builder
, value
, ptr
);
1171 static LLVMTypeRef
get_def_type(struct ac_nir_context
*ctx
,
1172 const nir_ssa_def
*def
)
1174 LLVMTypeRef type
= LLVMIntTypeInContext(ctx
->ac
.context
, def
->bit_size
);
1175 if (def
->num_components
> 1) {
1176 type
= LLVMVectorType(type
, def
->num_components
);
1181 static LLVMValueRef
get_src(struct ac_nir_context
*nir
, nir_src src
)
1184 struct hash_entry
*entry
= _mesa_hash_table_search(nir
->defs
, src
.ssa
);
1185 return (LLVMValueRef
)entry
->data
;
1189 static LLVMBasicBlockRef
get_block(struct ac_nir_context
*nir
,
1190 const struct nir_block
*b
)
1192 struct hash_entry
*entry
= _mesa_hash_table_search(nir
->defs
, b
);
1193 return (LLVMBasicBlockRef
)entry
->data
;
1196 static LLVMValueRef
get_alu_src(struct ac_nir_context
*ctx
,
1198 unsigned num_components
)
1200 LLVMValueRef value
= get_src(ctx
, src
.src
);
1201 bool need_swizzle
= false;
1204 LLVMTypeRef type
= LLVMTypeOf(value
);
1205 unsigned src_components
= LLVMGetTypeKind(type
) == LLVMVectorTypeKind
1206 ? LLVMGetVectorSize(type
)
1209 for (unsigned i
= 0; i
< num_components
; ++i
) {
1210 assert(src
.swizzle
[i
] < src_components
);
1211 if (src
.swizzle
[i
] != i
)
1212 need_swizzle
= true;
1215 if (need_swizzle
|| num_components
!= src_components
) {
1216 LLVMValueRef masks
[] = {
1217 LLVMConstInt(ctx
->ac
.i32
, src
.swizzle
[0], false),
1218 LLVMConstInt(ctx
->ac
.i32
, src
.swizzle
[1], false),
1219 LLVMConstInt(ctx
->ac
.i32
, src
.swizzle
[2], false),
1220 LLVMConstInt(ctx
->ac
.i32
, src
.swizzle
[3], false)};
1222 if (src_components
> 1 && num_components
== 1) {
1223 value
= LLVMBuildExtractElement(ctx
->ac
.builder
, value
,
1225 } else if (src_components
== 1 && num_components
> 1) {
1226 LLVMValueRef values
[] = {value
, value
, value
, value
};
1227 value
= ac_build_gather_values(&ctx
->ac
, values
, num_components
);
1229 LLVMValueRef swizzle
= LLVMConstVector(masks
, num_components
);
1230 value
= LLVMBuildShuffleVector(ctx
->ac
.builder
, value
, value
,
1234 assert(!src
.negate
);
1239 static LLVMValueRef
emit_int_cmp(struct ac_llvm_context
*ctx
,
1240 LLVMIntPredicate pred
, LLVMValueRef src0
,
1243 LLVMValueRef result
= LLVMBuildICmp(ctx
->builder
, pred
, src0
, src1
, "");
1244 return LLVMBuildSelect(ctx
->builder
, result
,
1245 LLVMConstInt(ctx
->i32
, 0xFFFFFFFF, false),
1249 static LLVMValueRef
emit_float_cmp(struct ac_llvm_context
*ctx
,
1250 LLVMRealPredicate pred
, LLVMValueRef src0
,
1253 LLVMValueRef result
;
1254 src0
= ac_to_float(ctx
, src0
);
1255 src1
= ac_to_float(ctx
, src1
);
1256 result
= LLVMBuildFCmp(ctx
->builder
, pred
, src0
, src1
, "");
1257 return LLVMBuildSelect(ctx
->builder
, result
,
1258 LLVMConstInt(ctx
->i32
, 0xFFFFFFFF, false),
1262 static LLVMValueRef
emit_intrin_1f_param(struct ac_llvm_context
*ctx
,
1264 LLVMTypeRef result_type
,
1268 LLVMValueRef params
[] = {
1269 ac_to_float(ctx
, src0
),
1272 MAYBE_UNUSED
const int length
= snprintf(name
, sizeof(name
), "%s.f%d", intrin
,
1273 get_elem_bits(ctx
, result_type
));
1274 assert(length
< sizeof(name
));
1275 return ac_build_intrinsic(ctx
, name
, result_type
, params
, 1, AC_FUNC_ATTR_READNONE
);
1278 static LLVMValueRef
emit_intrin_2f_param(struct ac_llvm_context
*ctx
,
1280 LLVMTypeRef result_type
,
1281 LLVMValueRef src0
, LLVMValueRef src1
)
1284 LLVMValueRef params
[] = {
1285 ac_to_float(ctx
, src0
),
1286 ac_to_float(ctx
, src1
),
1289 MAYBE_UNUSED
const int length
= snprintf(name
, sizeof(name
), "%s.f%d", intrin
,
1290 get_elem_bits(ctx
, result_type
));
1291 assert(length
< sizeof(name
));
1292 return ac_build_intrinsic(ctx
, name
, result_type
, params
, 2, AC_FUNC_ATTR_READNONE
);
1295 static LLVMValueRef
emit_intrin_3f_param(struct ac_llvm_context
*ctx
,
1297 LLVMTypeRef result_type
,
1298 LLVMValueRef src0
, LLVMValueRef src1
, LLVMValueRef src2
)
1301 LLVMValueRef params
[] = {
1302 ac_to_float(ctx
, src0
),
1303 ac_to_float(ctx
, src1
),
1304 ac_to_float(ctx
, src2
),
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
, 3, AC_FUNC_ATTR_READNONE
);
1313 static LLVMValueRef
emit_bcsel(struct ac_llvm_context
*ctx
,
1314 LLVMValueRef src0
, LLVMValueRef src1
, LLVMValueRef src2
)
1316 LLVMValueRef v
= LLVMBuildICmp(ctx
->builder
, LLVMIntNE
, src0
,
1318 return LLVMBuildSelect(ctx
->builder
, v
, src1
, src2
, "");
1321 static LLVMValueRef
emit_minmax_int(struct ac_llvm_context
*ctx
,
1322 LLVMIntPredicate pred
,
1323 LLVMValueRef src0
, LLVMValueRef src1
)
1325 return LLVMBuildSelect(ctx
->builder
,
1326 LLVMBuildICmp(ctx
->builder
, pred
, src0
, src1
, ""),
1331 static LLVMValueRef
emit_iabs(struct ac_llvm_context
*ctx
,
1334 return emit_minmax_int(ctx
, LLVMIntSGT
, src0
,
1335 LLVMBuildNeg(ctx
->builder
, src0
, ""));
1338 static LLVMValueRef
emit_fsign(struct ac_llvm_context
*ctx
,
1342 LLVMValueRef cmp
, val
, zero
, one
;
1345 if (bitsize
== 32) {
1355 cmp
= LLVMBuildFCmp(ctx
->builder
, LLVMRealOGT
, src0
, zero
, "");
1356 val
= LLVMBuildSelect(ctx
->builder
, cmp
, one
, src0
, "");
1357 cmp
= LLVMBuildFCmp(ctx
->builder
, LLVMRealOGE
, val
, zero
, "");
1358 val
= LLVMBuildSelect(ctx
->builder
, cmp
, val
, LLVMConstReal(type
, -1.0), "");
1362 static LLVMValueRef
emit_isign(struct ac_llvm_context
*ctx
,
1363 LLVMValueRef src0
, unsigned bitsize
)
1365 LLVMValueRef cmp
, val
, zero
, one
;
1368 if (bitsize
== 32) {
1378 cmp
= LLVMBuildICmp(ctx
->builder
, LLVMIntSGT
, src0
, zero
, "");
1379 val
= LLVMBuildSelect(ctx
->builder
, cmp
, one
, src0
, "");
1380 cmp
= LLVMBuildICmp(ctx
->builder
, LLVMIntSGE
, val
, zero
, "");
1381 val
= LLVMBuildSelect(ctx
->builder
, cmp
, val
, LLVMConstInt(type
, -1, true), "");
1385 static LLVMValueRef
emit_ffract(struct ac_llvm_context
*ctx
,
1386 LLVMValueRef src0
, unsigned bitsize
)
1391 if (bitsize
== 32) {
1392 intr
= "llvm.floor.f32";
1395 intr
= "llvm.floor.f64";
1399 LLVMValueRef fsrc0
= ac_to_float(ctx
, src0
);
1400 LLVMValueRef params
[] = {
1403 LLVMValueRef floor
= ac_build_intrinsic(ctx
, intr
, type
, params
, 1,
1404 AC_FUNC_ATTR_READNONE
);
1405 return LLVMBuildFSub(ctx
->builder
, fsrc0
, floor
, "");
1408 static LLVMValueRef
emit_uint_carry(struct ac_llvm_context
*ctx
,
1410 LLVMValueRef src0
, LLVMValueRef src1
)
1412 LLVMTypeRef ret_type
;
1413 LLVMTypeRef types
[] = { ctx
->i32
, ctx
->i1
};
1415 LLVMValueRef params
[] = { src0
, src1
};
1416 ret_type
= LLVMStructTypeInContext(ctx
->context
, types
,
1419 res
= ac_build_intrinsic(ctx
, intrin
, ret_type
,
1420 params
, 2, AC_FUNC_ATTR_READNONE
);
1422 res
= LLVMBuildExtractValue(ctx
->builder
, res
, 1, "");
1423 res
= LLVMBuildZExt(ctx
->builder
, res
, ctx
->i32
, "");
1427 static LLVMValueRef
emit_b2f(struct ac_llvm_context
*ctx
,
1430 return LLVMBuildAnd(ctx
->builder
, src0
, LLVMBuildBitCast(ctx
->builder
, LLVMConstReal(ctx
->f32
, 1.0), ctx
->i32
, ""), "");
1433 static LLVMValueRef
emit_f2b(struct ac_llvm_context
*ctx
,
1436 src0
= ac_to_float(ctx
, src0
);
1437 return LLVMBuildSExt(ctx
->builder
,
1438 LLVMBuildFCmp(ctx
->builder
, LLVMRealUNE
, src0
, ctx
->f32_0
, ""),
1442 static LLVMValueRef
emit_b2i(struct ac_llvm_context
*ctx
,
1446 LLVMValueRef result
= LLVMBuildAnd(ctx
->builder
, src0
, ctx
->i32_1
, "");
1451 return LLVMBuildZExt(ctx
->builder
, result
, ctx
->i64
, "");
1454 static LLVMValueRef
emit_i2b(struct ac_llvm_context
*ctx
,
1457 return LLVMBuildSExt(ctx
->builder
,
1458 LLVMBuildICmp(ctx
->builder
, LLVMIntNE
, src0
, ctx
->i32_0
, ""),
1462 static LLVMValueRef
emit_f2f16(struct nir_to_llvm_context
*ctx
,
1465 LLVMValueRef result
;
1466 LLVMValueRef cond
= NULL
;
1468 src0
= ac_to_float(&ctx
->ac
, src0
);
1469 result
= LLVMBuildFPTrunc(ctx
->builder
, src0
, ctx
->ac
.f16
, "");
1471 if (ctx
->options
->chip_class
>= VI
) {
1472 LLVMValueRef args
[2];
1473 /* Check if the result is a denormal - and flush to 0 if so. */
1475 args
[1] = LLVMConstInt(ctx
->ac
.i32
, N_SUBNORMAL
| P_SUBNORMAL
, false);
1476 cond
= ac_build_intrinsic(&ctx
->ac
, "llvm.amdgcn.class.f16", ctx
->ac
.i1
, args
, 2, AC_FUNC_ATTR_READNONE
);
1479 /* need to convert back up to f32 */
1480 result
= LLVMBuildFPExt(ctx
->builder
, result
, ctx
->ac
.f32
, "");
1482 if (ctx
->options
->chip_class
>= VI
)
1483 result
= LLVMBuildSelect(ctx
->builder
, cond
, ctx
->ac
.f32_0
, result
, "");
1486 /* 0x38800000 is smallest half float value (2^-14) in 32-bit float,
1487 * so compare the result and flush to 0 if it's smaller.
1489 LLVMValueRef temp
, cond2
;
1490 temp
= emit_intrin_1f_param(&ctx
->ac
, "llvm.fabs",
1491 ctx
->ac
.f32
, result
);
1492 cond
= LLVMBuildFCmp(ctx
->builder
, LLVMRealUGT
,
1493 LLVMBuildBitCast(ctx
->builder
, LLVMConstInt(ctx
->ac
.i32
, 0x38800000, false), ctx
->ac
.f32
, ""),
1495 cond2
= LLVMBuildFCmp(ctx
->builder
, LLVMRealUNE
,
1496 temp
, ctx
->ac
.f32_0
, "");
1497 cond
= LLVMBuildAnd(ctx
->builder
, cond
, cond2
, "");
1498 result
= LLVMBuildSelect(ctx
->builder
, cond
, ctx
->ac
.f32_0
, result
, "");
1503 static LLVMValueRef
emit_umul_high(struct ac_llvm_context
*ctx
,
1504 LLVMValueRef src0
, LLVMValueRef src1
)
1506 LLVMValueRef dst64
, result
;
1507 src0
= LLVMBuildZExt(ctx
->builder
, src0
, ctx
->i64
, "");
1508 src1
= LLVMBuildZExt(ctx
->builder
, src1
, ctx
->i64
, "");
1510 dst64
= LLVMBuildMul(ctx
->builder
, src0
, src1
, "");
1511 dst64
= LLVMBuildLShr(ctx
->builder
, dst64
, LLVMConstInt(ctx
->i64
, 32, false), "");
1512 result
= LLVMBuildTrunc(ctx
->builder
, dst64
, ctx
->i32
, "");
1516 static LLVMValueRef
emit_imul_high(struct ac_llvm_context
*ctx
,
1517 LLVMValueRef src0
, LLVMValueRef src1
)
1519 LLVMValueRef dst64
, result
;
1520 src0
= LLVMBuildSExt(ctx
->builder
, src0
, ctx
->i64
, "");
1521 src1
= LLVMBuildSExt(ctx
->builder
, src1
, ctx
->i64
, "");
1523 dst64
= LLVMBuildMul(ctx
->builder
, src0
, src1
, "");
1524 dst64
= LLVMBuildAShr(ctx
->builder
, dst64
, LLVMConstInt(ctx
->i64
, 32, false), "");
1525 result
= LLVMBuildTrunc(ctx
->builder
, dst64
, ctx
->i32
, "");
1529 static LLVMValueRef
emit_bitfield_extract(struct ac_llvm_context
*ctx
,
1531 const LLVMValueRef srcs
[3])
1533 LLVMValueRef result
;
1534 LLVMValueRef icond
= LLVMBuildICmp(ctx
->builder
, LLVMIntEQ
, srcs
[2], LLVMConstInt(ctx
->i32
, 32, false), "");
1536 result
= ac_build_bfe(ctx
, srcs
[0], srcs
[1], srcs
[2], is_signed
);
1537 result
= LLVMBuildSelect(ctx
->builder
, icond
, srcs
[0], result
, "");
1541 static LLVMValueRef
emit_bitfield_insert(struct ac_llvm_context
*ctx
,
1542 LLVMValueRef src0
, LLVMValueRef src1
,
1543 LLVMValueRef src2
, LLVMValueRef src3
)
1545 LLVMValueRef bfi_args
[3], result
;
1547 bfi_args
[0] = LLVMBuildShl(ctx
->builder
,
1548 LLVMBuildSub(ctx
->builder
,
1549 LLVMBuildShl(ctx
->builder
,
1554 bfi_args
[1] = LLVMBuildShl(ctx
->builder
, src1
, src2
, "");
1557 LLVMValueRef icond
= LLVMBuildICmp(ctx
->builder
, LLVMIntEQ
, src3
, LLVMConstInt(ctx
->i32
, 32, false), "");
1560 * (arg0 & arg1) | (~arg0 & arg2) = arg2 ^ (arg0 & (arg1 ^ arg2)
1561 * Use the right-hand side, which the LLVM backend can convert to V_BFI.
1563 result
= LLVMBuildXor(ctx
->builder
, bfi_args
[2],
1564 LLVMBuildAnd(ctx
->builder
, bfi_args
[0],
1565 LLVMBuildXor(ctx
->builder
, bfi_args
[1], bfi_args
[2], ""), ""), "");
1567 result
= LLVMBuildSelect(ctx
->builder
, icond
, src1
, result
, "");
1571 static LLVMValueRef
emit_pack_half_2x16(struct ac_llvm_context
*ctx
,
1574 LLVMValueRef comp
[2];
1576 src0
= ac_to_float(ctx
, src0
);
1577 comp
[0] = LLVMBuildExtractElement(ctx
->builder
, src0
, ctx
->i32_0
, "");
1578 comp
[1] = LLVMBuildExtractElement(ctx
->builder
, src0
, ctx
->i32_1
, "");
1580 return ac_build_cvt_pkrtz_f16(ctx
, comp
);
1583 static LLVMValueRef
emit_unpack_half_2x16(struct ac_llvm_context
*ctx
,
1586 LLVMValueRef const16
= LLVMConstInt(ctx
->i32
, 16, false);
1587 LLVMValueRef temps
[2], result
, val
;
1590 for (i
= 0; i
< 2; i
++) {
1591 val
= i
== 1 ? LLVMBuildLShr(ctx
->builder
, src0
, const16
, "") : src0
;
1592 val
= LLVMBuildTrunc(ctx
->builder
, val
, ctx
->i16
, "");
1593 val
= LLVMBuildBitCast(ctx
->builder
, val
, ctx
->f16
, "");
1594 temps
[i
] = LLVMBuildFPExt(ctx
->builder
, val
, ctx
->f32
, "");
1597 result
= LLVMBuildInsertElement(ctx
->builder
, LLVMGetUndef(ctx
->v2f32
), temps
[0],
1599 result
= LLVMBuildInsertElement(ctx
->builder
, result
, temps
[1],
1604 static LLVMValueRef
emit_ddxy(struct ac_nir_context
*ctx
,
1610 LLVMValueRef result
;
1612 if (op
== nir_op_fddx_fine
|| op
== nir_op_fddx
)
1613 mask
= AC_TID_MASK_LEFT
;
1614 else if (op
== nir_op_fddy_fine
|| op
== nir_op_fddy
)
1615 mask
= AC_TID_MASK_TOP
;
1617 mask
= AC_TID_MASK_TOP_LEFT
;
1619 /* for DDX we want to next X pixel, DDY next Y pixel. */
1620 if (op
== nir_op_fddx_fine
||
1621 op
== nir_op_fddx_coarse
||
1627 result
= ac_build_ddxy(&ctx
->ac
, mask
, idx
, src0
);
1632 * this takes an I,J coordinate pair,
1633 * and works out the X and Y derivatives.
1634 * it returns DDX(I), DDX(J), DDY(I), DDY(J).
1636 static LLVMValueRef
emit_ddxy_interp(
1637 struct ac_nir_context
*ctx
,
1638 LLVMValueRef interp_ij
)
1640 LLVMValueRef result
[4], a
;
1643 for (i
= 0; i
< 2; i
++) {
1644 a
= LLVMBuildExtractElement(ctx
->ac
.builder
, interp_ij
,
1645 LLVMConstInt(ctx
->ac
.i32
, i
, false), "");
1646 result
[i
] = emit_ddxy(ctx
, nir_op_fddx
, a
);
1647 result
[2+i
] = emit_ddxy(ctx
, nir_op_fddy
, a
);
1649 return ac_build_gather_values(&ctx
->ac
, result
, 4);
1652 static void visit_alu(struct ac_nir_context
*ctx
, const nir_alu_instr
*instr
)
1654 LLVMValueRef src
[4], result
= NULL
;
1655 unsigned num_components
= instr
->dest
.dest
.ssa
.num_components
;
1656 unsigned src_components
;
1657 LLVMTypeRef def_type
= get_def_type(ctx
, &instr
->dest
.dest
.ssa
);
1659 assert(nir_op_infos
[instr
->op
].num_inputs
<= ARRAY_SIZE(src
));
1660 switch (instr
->op
) {
1666 case nir_op_pack_half_2x16
:
1669 case nir_op_unpack_half_2x16
:
1673 src_components
= num_components
;
1676 for (unsigned i
= 0; i
< nir_op_infos
[instr
->op
].num_inputs
; i
++)
1677 src
[i
] = get_alu_src(ctx
, instr
->src
[i
], src_components
);
1679 switch (instr
->op
) {
1685 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1686 result
= LLVMBuildFNeg(ctx
->ac
.builder
, src
[0], "");
1689 result
= LLVMBuildNeg(ctx
->ac
.builder
, src
[0], "");
1692 result
= LLVMBuildNot(ctx
->ac
.builder
, src
[0], "");
1695 result
= LLVMBuildAdd(ctx
->ac
.builder
, src
[0], src
[1], "");
1698 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1699 src
[1] = ac_to_float(&ctx
->ac
, src
[1]);
1700 result
= LLVMBuildFAdd(ctx
->ac
.builder
, src
[0], src
[1], "");
1703 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1704 src
[1] = ac_to_float(&ctx
->ac
, src
[1]);
1705 result
= LLVMBuildFSub(ctx
->ac
.builder
, src
[0], src
[1], "");
1708 result
= LLVMBuildSub(ctx
->ac
.builder
, src
[0], src
[1], "");
1711 result
= LLVMBuildMul(ctx
->ac
.builder
, src
[0], src
[1], "");
1714 result
= LLVMBuildSRem(ctx
->ac
.builder
, src
[0], src
[1], "");
1717 result
= LLVMBuildURem(ctx
->ac
.builder
, src
[0], src
[1], "");
1720 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1721 src
[1] = ac_to_float(&ctx
->ac
, src
[1]);
1722 result
= ac_build_fdiv(&ctx
->ac
, src
[0], src
[1]);
1723 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.floor",
1724 ac_to_float_type(&ctx
->ac
, def_type
), result
);
1725 result
= LLVMBuildFMul(ctx
->ac
.builder
, src
[1] , result
, "");
1726 result
= LLVMBuildFSub(ctx
->ac
.builder
, src
[0], result
, "");
1729 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1730 src
[1] = ac_to_float(&ctx
->ac
, src
[1]);
1731 result
= LLVMBuildFRem(ctx
->ac
.builder
, src
[0], src
[1], "");
1734 result
= LLVMBuildSRem(ctx
->ac
.builder
, src
[0], src
[1], "");
1737 result
= LLVMBuildSDiv(ctx
->ac
.builder
, src
[0], src
[1], "");
1740 result
= LLVMBuildUDiv(ctx
->ac
.builder
, src
[0], src
[1], "");
1743 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1744 src
[1] = ac_to_float(&ctx
->ac
, src
[1]);
1745 result
= LLVMBuildFMul(ctx
->ac
.builder
, src
[0], src
[1], "");
1748 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1749 src
[1] = ac_to_float(&ctx
->ac
, src
[1]);
1750 result
= ac_build_fdiv(&ctx
->ac
, src
[0], src
[1]);
1753 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1754 result
= ac_build_fdiv(&ctx
->ac
, instr
->dest
.dest
.ssa
.bit_size
== 32 ? ctx
->ac
.f32_1
: ctx
->ac
.f64_1
,
1758 result
= LLVMBuildAnd(ctx
->ac
.builder
, src
[0], src
[1], "");
1761 result
= LLVMBuildOr(ctx
->ac
.builder
, src
[0], src
[1], "");
1764 result
= LLVMBuildXor(ctx
->ac
.builder
, src
[0], src
[1], "");
1767 result
= LLVMBuildShl(ctx
->ac
.builder
, src
[0],
1768 LLVMBuildZExt(ctx
->ac
.builder
, src
[1],
1769 LLVMTypeOf(src
[0]), ""),
1773 result
= LLVMBuildAShr(ctx
->ac
.builder
, src
[0],
1774 LLVMBuildZExt(ctx
->ac
.builder
, src
[1],
1775 LLVMTypeOf(src
[0]), ""),
1779 result
= LLVMBuildLShr(ctx
->ac
.builder
, src
[0],
1780 LLVMBuildZExt(ctx
->ac
.builder
, src
[1],
1781 LLVMTypeOf(src
[0]), ""),
1785 result
= emit_int_cmp(&ctx
->ac
, LLVMIntSLT
, src
[0], src
[1]);
1788 result
= emit_int_cmp(&ctx
->ac
, LLVMIntNE
, src
[0], src
[1]);
1791 result
= emit_int_cmp(&ctx
->ac
, LLVMIntEQ
, src
[0], src
[1]);
1794 result
= emit_int_cmp(&ctx
->ac
, LLVMIntSGE
, src
[0], src
[1]);
1797 result
= emit_int_cmp(&ctx
->ac
, LLVMIntULT
, src
[0], src
[1]);
1800 result
= emit_int_cmp(&ctx
->ac
, LLVMIntUGE
, src
[0], src
[1]);
1803 result
= emit_float_cmp(&ctx
->ac
, LLVMRealUEQ
, src
[0], src
[1]);
1806 result
= emit_float_cmp(&ctx
->ac
, LLVMRealUNE
, src
[0], src
[1]);
1809 result
= emit_float_cmp(&ctx
->ac
, LLVMRealULT
, src
[0], src
[1]);
1812 result
= emit_float_cmp(&ctx
->ac
, LLVMRealUGE
, src
[0], src
[1]);
1815 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.fabs",
1816 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1819 result
= emit_iabs(&ctx
->ac
, src
[0]);
1822 result
= emit_minmax_int(&ctx
->ac
, LLVMIntSGT
, src
[0], src
[1]);
1825 result
= emit_minmax_int(&ctx
->ac
, LLVMIntSLT
, src
[0], src
[1]);
1828 result
= emit_minmax_int(&ctx
->ac
, LLVMIntUGT
, src
[0], src
[1]);
1831 result
= emit_minmax_int(&ctx
->ac
, LLVMIntULT
, src
[0], src
[1]);
1834 result
= emit_isign(&ctx
->ac
, src
[0], instr
->dest
.dest
.ssa
.bit_size
);
1837 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1838 result
= emit_fsign(&ctx
->ac
, src
[0], instr
->dest
.dest
.ssa
.bit_size
);
1841 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.floor",
1842 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1845 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.trunc",
1846 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1849 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.ceil",
1850 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1852 case nir_op_fround_even
:
1853 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.rint",
1854 ac_to_float_type(&ctx
->ac
, def_type
),src
[0]);
1857 result
= emit_ffract(&ctx
->ac
, src
[0], instr
->dest
.dest
.ssa
.bit_size
);
1860 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.sin",
1861 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1864 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.cos",
1865 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1868 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.sqrt",
1869 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1872 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.exp2",
1873 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1876 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.log2",
1877 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1880 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.sqrt",
1881 ac_to_float_type(&ctx
->ac
, def_type
), src
[0]);
1882 result
= ac_build_fdiv(&ctx
->ac
, instr
->dest
.dest
.ssa
.bit_size
== 32 ? ctx
->ac
.f32_1
: ctx
->ac
.f64_1
,
1886 result
= emit_intrin_2f_param(&ctx
->ac
, "llvm.pow",
1887 ac_to_float_type(&ctx
->ac
, def_type
), src
[0], src
[1]);
1890 result
= emit_intrin_2f_param(&ctx
->ac
, "llvm.maxnum",
1891 ac_to_float_type(&ctx
->ac
, def_type
), src
[0], src
[1]);
1892 if (ctx
->ac
.chip_class
< GFX9
&&
1893 instr
->dest
.dest
.ssa
.bit_size
== 32) {
1894 /* Only pre-GFX9 chips do not flush denorms. */
1895 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.canonicalize",
1896 ac_to_float_type(&ctx
->ac
, def_type
),
1901 result
= emit_intrin_2f_param(&ctx
->ac
, "llvm.minnum",
1902 ac_to_float_type(&ctx
->ac
, def_type
), src
[0], src
[1]);
1903 if (ctx
->ac
.chip_class
< GFX9
&&
1904 instr
->dest
.dest
.ssa
.bit_size
== 32) {
1905 /* Only pre-GFX9 chips do not flush denorms. */
1906 result
= emit_intrin_1f_param(&ctx
->ac
, "llvm.canonicalize",
1907 ac_to_float_type(&ctx
->ac
, def_type
),
1912 result
= emit_intrin_3f_param(&ctx
->ac
, "llvm.fmuladd",
1913 ac_to_float_type(&ctx
->ac
, def_type
), src
[0], src
[1], src
[2]);
1915 case nir_op_ibitfield_extract
:
1916 result
= emit_bitfield_extract(&ctx
->ac
, true, src
);
1918 case nir_op_ubitfield_extract
:
1919 result
= emit_bitfield_extract(&ctx
->ac
, false, src
);
1921 case nir_op_bitfield_insert
:
1922 result
= emit_bitfield_insert(&ctx
->ac
, src
[0], src
[1], src
[2], src
[3]);
1924 case nir_op_bitfield_reverse
:
1925 result
= ac_build_intrinsic(&ctx
->ac
, "llvm.bitreverse.i32", ctx
->ac
.i32
, src
, 1, AC_FUNC_ATTR_READNONE
);
1927 case nir_op_bit_count
:
1928 result
= ac_build_intrinsic(&ctx
->ac
, "llvm.ctpop.i32", ctx
->ac
.i32
, src
, 1, AC_FUNC_ATTR_READNONE
);
1933 for (unsigned i
= 0; i
< nir_op_infos
[instr
->op
].num_inputs
; i
++)
1934 src
[i
] = ac_to_integer(&ctx
->ac
, src
[i
]);
1935 result
= ac_build_gather_values(&ctx
->ac
, src
, num_components
);
1939 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1940 result
= LLVMBuildFPToSI(ctx
->ac
.builder
, src
[0], def_type
, "");
1944 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1945 result
= LLVMBuildFPToUI(ctx
->ac
.builder
, src
[0], def_type
, "");
1949 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1950 result
= LLVMBuildSIToFP(ctx
->ac
.builder
, src
[0], ac_to_float_type(&ctx
->ac
, def_type
), "");
1954 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1955 result
= LLVMBuildUIToFP(ctx
->ac
.builder
, src
[0], ac_to_float_type(&ctx
->ac
, def_type
), "");
1958 src
[0] = ac_to_float(&ctx
->ac
, src
[0]);
1959 result
= LLVMBuildFPExt(ctx
->ac
.builder
, src
[0], ac_to_float_type(&ctx
->ac
, def_type
), "");
1962 result
= LLVMBuildFPTrunc(ctx
->ac
.builder
, src
[0], ac_to_float_type(&ctx
->ac
, def_type
), "");
1966 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1967 if (get_elem_bits(&ctx
->ac
, LLVMTypeOf(src
[0])) < get_elem_bits(&ctx
->ac
, def_type
))
1968 result
= LLVMBuildZExt(ctx
->ac
.builder
, src
[0], def_type
, "");
1970 result
= LLVMBuildTrunc(ctx
->ac
.builder
, src
[0], def_type
, "");
1974 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1975 if (get_elem_bits(&ctx
->ac
, LLVMTypeOf(src
[0])) < get_elem_bits(&ctx
->ac
, def_type
))
1976 result
= LLVMBuildSExt(ctx
->ac
.builder
, src
[0], def_type
, "");
1978 result
= LLVMBuildTrunc(ctx
->ac
.builder
, src
[0], def_type
, "");
1981 result
= emit_bcsel(&ctx
->ac
, src
[0], src
[1], src
[2]);
1983 case nir_op_find_lsb
:
1984 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1985 result
= ac_find_lsb(&ctx
->ac
, ctx
->ac
.i32
, src
[0]);
1987 case nir_op_ufind_msb
:
1988 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1989 result
= ac_build_umsb(&ctx
->ac
, src
[0], ctx
->ac
.i32
);
1991 case nir_op_ifind_msb
:
1992 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1993 result
= ac_build_imsb(&ctx
->ac
, src
[0], ctx
->ac
.i32
);
1995 case nir_op_uadd_carry
:
1996 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
1997 src
[1] = ac_to_integer(&ctx
->ac
, src
[1]);
1998 result
= emit_uint_carry(&ctx
->ac
, "llvm.uadd.with.overflow.i32", src
[0], src
[1]);
2000 case nir_op_usub_borrow
:
2001 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
2002 src
[1] = ac_to_integer(&ctx
->ac
, src
[1]);
2003 result
= emit_uint_carry(&ctx
->ac
, "llvm.usub.with.overflow.i32", src
[0], src
[1]);
2006 result
= emit_b2f(&ctx
->ac
, src
[0]);
2009 result
= emit_f2b(&ctx
->ac
, src
[0]);
2012 result
= emit_b2i(&ctx
->ac
, src
[0], instr
->dest
.dest
.ssa
.bit_size
);
2015 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
2016 result
= emit_i2b(&ctx
->ac
, src
[0]);
2018 case nir_op_fquantize2f16
:
2019 result
= emit_f2f16(ctx
->nctx
, src
[0]);
2021 case nir_op_umul_high
:
2022 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
2023 src
[1] = ac_to_integer(&ctx
->ac
, src
[1]);
2024 result
= emit_umul_high(&ctx
->ac
, src
[0], src
[1]);
2026 case nir_op_imul_high
:
2027 src
[0] = ac_to_integer(&ctx
->ac
, src
[0]);
2028 src
[1] = ac_to_integer(&ctx
->ac
, src
[1]);
2029 result
= emit_imul_high(&ctx
->ac
, src
[0], src
[1]);
2031 case nir_op_pack_half_2x16
:
2032 result
= emit_pack_half_2x16(&ctx
->ac
, src
[0]);
2034 case nir_op_unpack_half_2x16
:
2035 result
= emit_unpack_half_2x16(&ctx
->ac
, src
[0]);
2039 case nir_op_fddx_fine
:
2040 case nir_op_fddy_fine
:
2041 case nir_op_fddx_coarse
:
2042 case nir_op_fddy_coarse
:
2043 result
= emit_ddxy(ctx
, instr
->op
, src
[0]);
2046 case nir_op_unpack_64_2x32_split_x
: {
2047 assert(instr
->src
[0].src
.ssa
->num_components
== 1);
2048 LLVMValueRef tmp
= LLVMBuildBitCast(ctx
->ac
.builder
, src
[0],
2051 result
= LLVMBuildExtractElement(ctx
->ac
.builder
, tmp
,
2056 case nir_op_unpack_64_2x32_split_y
: {
2057 assert(instr
->src
[0].src
.ssa
->num_components
== 1);
2058 LLVMValueRef tmp
= LLVMBuildBitCast(ctx
->ac
.builder
, src
[0],
2061 result
= LLVMBuildExtractElement(ctx
->ac
.builder
, tmp
,
2066 case nir_op_pack_64_2x32_split
: {
2067 LLVMValueRef tmp
= LLVMGetUndef(ctx
->ac
.v2i32
);
2068 tmp
= LLVMBuildInsertElement(ctx
->ac
.builder
, tmp
,
2069 src
[0], ctx
->ac
.i32_0
, "");
2070 tmp
= LLVMBuildInsertElement(ctx
->ac
.builder
, tmp
,
2071 src
[1], ctx
->ac
.i32_1
, "");
2072 result
= LLVMBuildBitCast(ctx
->ac
.builder
, tmp
, ctx
->ac
.i64
, "");
2077 fprintf(stderr
, "Unknown NIR alu instr: ");
2078 nir_print_instr(&instr
->instr
, stderr
);
2079 fprintf(stderr
, "\n");
2084 assert(instr
->dest
.dest
.is_ssa
);
2085 result
= ac_to_integer(&ctx
->ac
, result
);
2086 _mesa_hash_table_insert(ctx
->defs
, &instr
->dest
.dest
.ssa
,
2091 static void visit_load_const(struct ac_nir_context
*ctx
,
2092 const nir_load_const_instr
*instr
)
2094 LLVMValueRef values
[4], value
= NULL
;
2095 LLVMTypeRef element_type
=
2096 LLVMIntTypeInContext(ctx
->ac
.context
, instr
->def
.bit_size
);
2098 for (unsigned i
= 0; i
< instr
->def
.num_components
; ++i
) {
2099 switch (instr
->def
.bit_size
) {
2101 values
[i
] = LLVMConstInt(element_type
,
2102 instr
->value
.u32
[i
], false);
2105 values
[i
] = LLVMConstInt(element_type
,
2106 instr
->value
.u64
[i
], false);
2110 "unsupported nir load_const bit_size: %d\n",
2111 instr
->def
.bit_size
);
2115 if (instr
->def
.num_components
> 1) {
2116 value
= LLVMConstVector(values
, instr
->def
.num_components
);
2120 _mesa_hash_table_insert(ctx
->defs
, &instr
->def
, value
);
2123 static LLVMValueRef
cast_ptr(struct nir_to_llvm_context
*ctx
, LLVMValueRef ptr
,
2126 int addr_space
= LLVMGetPointerAddressSpace(LLVMTypeOf(ptr
));
2127 return LLVMBuildBitCast(ctx
->builder
, ptr
,
2128 LLVMPointerType(type
, addr_space
), "");
2132 get_buffer_size(struct ac_nir_context
*ctx
, LLVMValueRef descriptor
, bool in_elements
)
2135 LLVMBuildExtractElement(ctx
->ac
.builder
, descriptor
,
2136 LLVMConstInt(ctx
->ac
.i32
, 2, false), "");
2139 if (ctx
->ac
.chip_class
== VI
&& in_elements
) {
2140 /* On VI, the descriptor contains the size in bytes,
2141 * but TXQ must return the size in elements.
2142 * The stride is always non-zero for resources using TXQ.
2144 LLVMValueRef stride
=
2145 LLVMBuildExtractElement(ctx
->ac
.builder
, descriptor
,
2147 stride
= LLVMBuildLShr(ctx
->ac
.builder
, stride
,
2148 LLVMConstInt(ctx
->ac
.i32
, 16, false), "");
2149 stride
= LLVMBuildAnd(ctx
->ac
.builder
, stride
,
2150 LLVMConstInt(ctx
->ac
.i32
, 0x3fff, false), "");
2152 size
= LLVMBuildUDiv(ctx
->ac
.builder
, size
, stride
, "");
2158 * Given the i32 or vNi32 \p type, generate the textual name (e.g. for use with
2161 static void build_int_type_name(
2163 char *buf
, unsigned bufsize
)
2165 assert(bufsize
>= 6);
2167 if (LLVMGetTypeKind(type
) == LLVMVectorTypeKind
)
2168 snprintf(buf
, bufsize
, "v%ui32",
2169 LLVMGetVectorSize(type
));
2174 static LLVMValueRef
radv_lower_gather4_integer(struct ac_llvm_context
*ctx
,
2175 struct ac_image_args
*args
,
2176 const nir_tex_instr
*instr
)
2178 enum glsl_base_type stype
= glsl_get_sampler_result_type(instr
->texture
->var
->type
);
2179 LLVMValueRef coord
= args
->addr
;
2180 LLVMValueRef half_texel
[2];
2181 LLVMValueRef compare_cube_wa
= NULL
;
2182 LLVMValueRef result
;
2184 unsigned coord_vgpr_index
= (unsigned)args
->offset
+ (unsigned)args
->compare
;
2188 struct ac_image_args txq_args
= { 0 };
2190 txq_args
.da
= instr
->is_array
|| instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
;
2191 txq_args
.opcode
= ac_image_get_resinfo
;
2192 txq_args
.dmask
= 0xf;
2193 txq_args
.addr
= ctx
->i32_0
;
2194 txq_args
.resource
= args
->resource
;
2195 LLVMValueRef size
= ac_build_image_opcode(ctx
, &txq_args
);
2197 for (c
= 0; c
< 2; c
++) {
2198 half_texel
[c
] = LLVMBuildExtractElement(ctx
->builder
, size
,
2199 LLVMConstInt(ctx
->i32
, c
, false), "");
2200 half_texel
[c
] = LLVMBuildUIToFP(ctx
->builder
, half_texel
[c
], ctx
->f32
, "");
2201 half_texel
[c
] = ac_build_fdiv(ctx
, ctx
->f32_1
, half_texel
[c
]);
2202 half_texel
[c
] = LLVMBuildFMul(ctx
->builder
, half_texel
[c
],
2203 LLVMConstReal(ctx
->f32
, -0.5), "");
2207 LLVMValueRef orig_coords
= args
->addr
;
2209 for (c
= 0; c
< 2; c
++) {
2211 LLVMValueRef index
= LLVMConstInt(ctx
->i32
, coord_vgpr_index
+ c
, 0);
2212 tmp
= LLVMBuildExtractElement(ctx
->builder
, coord
, index
, "");
2213 tmp
= LLVMBuildBitCast(ctx
->builder
, tmp
, ctx
->f32
, "");
2214 tmp
= LLVMBuildFAdd(ctx
->builder
, tmp
, half_texel
[c
], "");
2215 tmp
= LLVMBuildBitCast(ctx
->builder
, tmp
, ctx
->i32
, "");
2216 coord
= LLVMBuildInsertElement(ctx
->builder
, coord
, tmp
, index
, "");
2221 * Apparantly cube has issue with integer types that the workaround doesn't solve,
2222 * so this tests if the format is 8_8_8_8 and an integer type do an alternate
2223 * workaround by sampling using a scaled type and converting.
2224 * This is taken from amdgpu-pro shaders.
2226 /* NOTE this produces some ugly code compared to amdgpu-pro,
2227 * LLVM ends up dumping SGPRs into VGPRs to deal with the compare/select,
2228 * and then reads them back. -pro generates two selects,
2229 * one s_cmp for the descriptor rewriting
2230 * one v_cmp for the coordinate and result changes.
2232 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
) {
2233 LLVMValueRef tmp
, tmp2
;
2235 /* workaround 8/8/8/8 uint/sint cube gather bug */
2236 /* first detect it then change to a scaled read and f2i */
2237 tmp
= LLVMBuildExtractElement(ctx
->builder
, args
->resource
, ctx
->i32_1
, "");
2240 /* extract the DATA_FORMAT */
2241 tmp
= ac_build_bfe(ctx
, tmp
, LLVMConstInt(ctx
->i32
, 20, false),
2242 LLVMConstInt(ctx
->i32
, 6, false), false);
2244 /* is the DATA_FORMAT == 8_8_8_8 */
2245 compare_cube_wa
= LLVMBuildICmp(ctx
->builder
, LLVMIntEQ
, tmp
, LLVMConstInt(ctx
->i32
, V_008F14_IMG_DATA_FORMAT_8_8_8_8
, false), "");
2247 if (stype
== GLSL_TYPE_UINT
)
2248 /* Create a NUM FORMAT - 0x2 or 0x4 - USCALED or UINT */
2249 tmp
= LLVMBuildSelect(ctx
->builder
, compare_cube_wa
, LLVMConstInt(ctx
->i32
, 0x8000000, false),
2250 LLVMConstInt(ctx
->i32
, 0x10000000, false), "");
2252 /* Create a NUM FORMAT - 0x3 or 0x5 - SSCALED or SINT */
2253 tmp
= LLVMBuildSelect(ctx
->builder
, compare_cube_wa
, LLVMConstInt(ctx
->i32
, 0xc000000, false),
2254 LLVMConstInt(ctx
->i32
, 0x14000000, false), "");
2256 /* replace the NUM FORMAT in the descriptor */
2257 tmp2
= LLVMBuildAnd(ctx
->builder
, tmp2
, LLVMConstInt(ctx
->i32
, C_008F14_NUM_FORMAT_GFX6
, false), "");
2258 tmp2
= LLVMBuildOr(ctx
->builder
, tmp2
, tmp
, "");
2260 args
->resource
= LLVMBuildInsertElement(ctx
->builder
, args
->resource
, tmp2
, ctx
->i32_1
, "");
2262 /* don't modify the coordinates for this case */
2263 coord
= LLVMBuildSelect(ctx
->builder
, compare_cube_wa
, orig_coords
, coord
, "");
2266 result
= ac_build_image_opcode(ctx
, args
);
2268 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
) {
2269 LLVMValueRef tmp
, tmp2
;
2271 /* if the cube workaround is in place, f2i the result. */
2272 for (c
= 0; c
< 4; c
++) {
2273 tmp
= LLVMBuildExtractElement(ctx
->builder
, result
, LLVMConstInt(ctx
->i32
, c
, false), "");
2274 if (stype
== GLSL_TYPE_UINT
)
2275 tmp2
= LLVMBuildFPToUI(ctx
->builder
, tmp
, ctx
->i32
, "");
2277 tmp2
= LLVMBuildFPToSI(ctx
->builder
, tmp
, ctx
->i32
, "");
2278 tmp
= LLVMBuildBitCast(ctx
->builder
, tmp
, ctx
->i32
, "");
2279 tmp2
= LLVMBuildBitCast(ctx
->builder
, tmp2
, ctx
->i32
, "");
2280 tmp
= LLVMBuildSelect(ctx
->builder
, compare_cube_wa
, tmp2
, tmp
, "");
2281 tmp
= LLVMBuildBitCast(ctx
->builder
, tmp
, ctx
->f32
, "");
2282 result
= LLVMBuildInsertElement(ctx
->builder
, result
, tmp
, LLVMConstInt(ctx
->i32
, c
, false), "");
2288 static LLVMValueRef
build_tex_intrinsic(struct ac_nir_context
*ctx
,
2289 const nir_tex_instr
*instr
,
2291 struct ac_image_args
*args
)
2293 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_BUF
) {
2294 unsigned mask
= nir_ssa_def_components_read(&instr
->dest
.ssa
);
2296 return ac_build_buffer_load_format(&ctx
->ac
,
2300 util_last_bit(mask
),
2304 args
->opcode
= ac_image_sample
;
2305 args
->compare
= instr
->is_shadow
;
2307 switch (instr
->op
) {
2309 case nir_texop_txf_ms
:
2310 case nir_texop_samples_identical
:
2311 args
->opcode
= lod_is_zero
||
2312 instr
->sampler_dim
== GLSL_SAMPLER_DIM_MS
?
2313 ac_image_load
: ac_image_load_mip
;
2314 args
->compare
= false;
2315 args
->offset
= false;
2322 args
->level_zero
= true;
2327 case nir_texop_query_levels
:
2328 args
->opcode
= ac_image_get_resinfo
;
2331 if (ctx
->stage
!= MESA_SHADER_FRAGMENT
)
2332 args
->level_zero
= true;
2338 args
->opcode
= ac_image_gather4
;
2339 args
->level_zero
= true;
2342 args
->opcode
= ac_image_get_lod
;
2343 args
->compare
= false;
2344 args
->offset
= false;
2350 if (instr
->op
== nir_texop_tg4
&& ctx
->ac
.chip_class
<= VI
) {
2351 enum glsl_base_type stype
= glsl_get_sampler_result_type(instr
->texture
->var
->type
);
2352 if (stype
== GLSL_TYPE_UINT
|| stype
== GLSL_TYPE_INT
) {
2353 return radv_lower_gather4_integer(&ctx
->ac
, args
, instr
);
2356 return ac_build_image_opcode(&ctx
->ac
, args
);
2359 static LLVMValueRef
visit_vulkan_resource_index(struct nir_to_llvm_context
*ctx
,
2360 nir_intrinsic_instr
*instr
)
2362 LLVMValueRef index
= get_src(ctx
->nir
, instr
->src
[0]);
2363 unsigned desc_set
= nir_intrinsic_desc_set(instr
);
2364 unsigned binding
= nir_intrinsic_binding(instr
);
2365 LLVMValueRef desc_ptr
= ctx
->descriptor_sets
[desc_set
];
2366 struct radv_pipeline_layout
*pipeline_layout
= ctx
->options
->layout
;
2367 struct radv_descriptor_set_layout
*layout
= pipeline_layout
->set
[desc_set
].layout
;
2368 unsigned base_offset
= layout
->binding
[binding
].offset
;
2369 LLVMValueRef offset
, stride
;
2371 if (layout
->binding
[binding
].type
== VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC
||
2372 layout
->binding
[binding
].type
== VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC
) {
2373 unsigned idx
= pipeline_layout
->set
[desc_set
].dynamic_offset_start
+
2374 layout
->binding
[binding
].dynamic_offset_offset
;
2375 desc_ptr
= ctx
->push_constants
;
2376 base_offset
= pipeline_layout
->push_constant_size
+ 16 * idx
;
2377 stride
= LLVMConstInt(ctx
->ac
.i32
, 16, false);
2379 stride
= LLVMConstInt(ctx
->ac
.i32
, layout
->binding
[binding
].size
, false);
2381 offset
= LLVMConstInt(ctx
->ac
.i32
, base_offset
, false);
2382 index
= LLVMBuildMul(ctx
->builder
, index
, stride
, "");
2383 offset
= LLVMBuildAdd(ctx
->builder
, offset
, index
, "");
2385 desc_ptr
= ac_build_gep0(&ctx
->ac
, desc_ptr
, offset
);
2386 desc_ptr
= cast_ptr(ctx
, desc_ptr
, ctx
->ac
.v4i32
);
2387 LLVMSetMetadata(desc_ptr
, ctx
->ac
.uniform_md_kind
, ctx
->ac
.empty_md
);
2392 static LLVMValueRef
visit_vulkan_resource_reindex(struct nir_to_llvm_context
*ctx
,
2393 nir_intrinsic_instr
*instr
)
2395 LLVMValueRef ptr
= get_src(ctx
->nir
, instr
->src
[0]);
2396 LLVMValueRef index
= get_src(ctx
->nir
, instr
->src
[1]);
2398 LLVMValueRef result
= LLVMBuildGEP(ctx
->builder
, ptr
, &index
, 1, "");
2399 LLVMSetMetadata(result
, ctx
->ac
.uniform_md_kind
, ctx
->ac
.empty_md
);
2403 static LLVMValueRef
visit_load_push_constant(struct nir_to_llvm_context
*ctx
,
2404 nir_intrinsic_instr
*instr
)
2406 LLVMValueRef ptr
, addr
;
2408 addr
= LLVMConstInt(ctx
->ac
.i32
, nir_intrinsic_base(instr
), 0);
2409 addr
= LLVMBuildAdd(ctx
->builder
, addr
, get_src(ctx
->nir
, instr
->src
[0]), "");
2411 ptr
= ac_build_gep0(&ctx
->ac
, ctx
->push_constants
, addr
);
2412 ptr
= cast_ptr(ctx
, ptr
, get_def_type(ctx
->nir
, &instr
->dest
.ssa
));
2414 return LLVMBuildLoad(ctx
->builder
, ptr
, "");
2417 static LLVMValueRef
visit_get_buffer_size(struct ac_nir_context
*ctx
,
2418 const nir_intrinsic_instr
*instr
)
2420 LLVMValueRef index
= get_src(ctx
, instr
->src
[0]);
2422 return get_buffer_size(ctx
, ctx
->abi
->load_ssbo(ctx
->abi
, index
, false), false);
2425 static uint32_t widen_mask(uint32_t mask
, unsigned multiplier
)
2427 uint32_t new_mask
= 0;
2428 for(unsigned i
= 0; i
< 32 && (1u << i
) <= mask
; ++i
)
2429 if (mask
& (1u << i
))
2430 new_mask
|= ((1u << multiplier
) - 1u) << (i
* multiplier
);
2434 static LLVMValueRef
extract_vector_range(struct ac_llvm_context
*ctx
, LLVMValueRef src
,
2435 unsigned start
, unsigned count
)
2437 LLVMTypeRef type
= LLVMTypeOf(src
);
2439 if (LLVMGetTypeKind(type
) != LLVMVectorTypeKind
) {
2445 unsigned src_elements
= LLVMGetVectorSize(type
);
2446 assert(start
< src_elements
);
2447 assert(start
+ count
<= src_elements
);
2449 if (start
== 0 && count
== src_elements
)
2453 return LLVMBuildExtractElement(ctx
->builder
, src
, LLVMConstInt(ctx
->i32
, start
, false), "");
2456 LLVMValueRef indices
[8];
2457 for (unsigned i
= 0; i
< count
; ++i
)
2458 indices
[i
] = LLVMConstInt(ctx
->i32
, start
+ i
, false);
2460 LLVMValueRef swizzle
= LLVMConstVector(indices
, count
);
2461 return LLVMBuildShuffleVector(ctx
->builder
, src
, src
, swizzle
, "");
2464 static void visit_store_ssbo(struct ac_nir_context
*ctx
,
2465 nir_intrinsic_instr
*instr
)
2467 const char *store_name
;
2468 LLVMValueRef src_data
= get_src(ctx
, instr
->src
[0]);
2469 LLVMTypeRef data_type
= ctx
->ac
.f32
;
2470 int elem_size_mult
= get_elem_bits(&ctx
->ac
, LLVMTypeOf(src_data
)) / 32;
2471 int components_32bit
= elem_size_mult
* instr
->num_components
;
2472 unsigned writemask
= nir_intrinsic_write_mask(instr
);
2473 LLVMValueRef base_data
, base_offset
;
2474 LLVMValueRef params
[6];
2476 params
[1] = ctx
->abi
->load_ssbo(ctx
->abi
,
2477 get_src(ctx
, instr
->src
[1]), true);
2478 params
[2] = ctx
->ac
.i32_0
; /* vindex */
2479 params
[4] = ctx
->ac
.i1false
; /* glc */
2480 params
[5] = ctx
->ac
.i1false
; /* slc */
2482 if (components_32bit
> 1)
2483 data_type
= LLVMVectorType(ctx
->ac
.f32
, components_32bit
);
2485 writemask
= widen_mask(writemask
, elem_size_mult
);
2487 base_data
= ac_to_float(&ctx
->ac
, src_data
);
2488 base_data
= trim_vector(&ctx
->ac
, base_data
, instr
->num_components
);
2489 base_data
= LLVMBuildBitCast(ctx
->ac
.builder
, base_data
,
2491 base_offset
= get_src(ctx
, instr
->src
[2]); /* voffset */
2495 LLVMValueRef offset
;
2497 u_bit_scan_consecutive_range(&writemask
, &start
, &count
);
2499 /* Due to an LLVM limitation, split 3-element writes
2500 * into a 2-element and a 1-element write. */
2502 writemask
|= 1 << (start
+ 2);
2507 writemask
|= ((1u << (count
- 4)) - 1u) << (start
+ 4);
2512 store_name
= "llvm.amdgcn.buffer.store.v4f32";
2513 } else if (count
== 2) {
2514 store_name
= "llvm.amdgcn.buffer.store.v2f32";
2518 store_name
= "llvm.amdgcn.buffer.store.f32";
2520 data
= extract_vector_range(&ctx
->ac
, base_data
, start
, count
);
2522 offset
= base_offset
;
2524 offset
= LLVMBuildAdd(ctx
->ac
.builder
, offset
, LLVMConstInt(ctx
->ac
.i32
, start
* 4, false), "");
2528 ac_build_intrinsic(&ctx
->ac
, store_name
,
2529 ctx
->ac
.voidt
, params
, 6, 0);
2533 static LLVMValueRef
visit_atomic_ssbo(struct ac_nir_context
*ctx
,
2534 const nir_intrinsic_instr
*instr
)
2537 LLVMValueRef params
[6];
2540 if (instr
->intrinsic
== nir_intrinsic_ssbo_atomic_comp_swap
) {
2541 params
[arg_count
++] = ac_llvm_extract_elem(&ctx
->ac
, get_src(ctx
, instr
->src
[3]), 0);
2543 params
[arg_count
++] = ac_llvm_extract_elem(&ctx
->ac
, get_src(ctx
, instr
->src
[2]), 0);
2544 params
[arg_count
++] = ctx
->abi
->load_ssbo(ctx
->abi
,
2545 get_src(ctx
, instr
->src
[0]),
2547 params
[arg_count
++] = ctx
->ac
.i32_0
; /* vindex */
2548 params
[arg_count
++] = get_src(ctx
, instr
->src
[1]); /* voffset */
2549 params
[arg_count
++] = LLVMConstInt(ctx
->ac
.i1
, 0, false); /* slc */
2551 switch (instr
->intrinsic
) {
2552 case nir_intrinsic_ssbo_atomic_add
:
2553 name
= "llvm.amdgcn.buffer.atomic.add";
2555 case nir_intrinsic_ssbo_atomic_imin
:
2556 name
= "llvm.amdgcn.buffer.atomic.smin";
2558 case nir_intrinsic_ssbo_atomic_umin
:
2559 name
= "llvm.amdgcn.buffer.atomic.umin";
2561 case nir_intrinsic_ssbo_atomic_imax
:
2562 name
= "llvm.amdgcn.buffer.atomic.smax";
2564 case nir_intrinsic_ssbo_atomic_umax
:
2565 name
= "llvm.amdgcn.buffer.atomic.umax";
2567 case nir_intrinsic_ssbo_atomic_and
:
2568 name
= "llvm.amdgcn.buffer.atomic.and";
2570 case nir_intrinsic_ssbo_atomic_or
:
2571 name
= "llvm.amdgcn.buffer.atomic.or";
2573 case nir_intrinsic_ssbo_atomic_xor
:
2574 name
= "llvm.amdgcn.buffer.atomic.xor";
2576 case nir_intrinsic_ssbo_atomic_exchange
:
2577 name
= "llvm.amdgcn.buffer.atomic.swap";
2579 case nir_intrinsic_ssbo_atomic_comp_swap
:
2580 name
= "llvm.amdgcn.buffer.atomic.cmpswap";
2586 return ac_build_intrinsic(&ctx
->ac
, name
, ctx
->ac
.i32
, params
, arg_count
, 0);
2589 static LLVMValueRef
visit_load_buffer(struct ac_nir_context
*ctx
,
2590 const nir_intrinsic_instr
*instr
)
2592 LLVMValueRef results
[2];
2593 int load_components
;
2594 int num_components
= instr
->num_components
;
2595 if (instr
->dest
.ssa
.bit_size
== 64)
2596 num_components
*= 2;
2598 for (int i
= 0; i
< num_components
; i
+= load_components
) {
2599 load_components
= MIN2(num_components
- i
, 4);
2600 const char *load_name
;
2601 LLVMTypeRef data_type
= ctx
->ac
.f32
;
2602 LLVMValueRef offset
= LLVMConstInt(ctx
->ac
.i32
, i
* 4, false);
2603 offset
= LLVMBuildAdd(ctx
->ac
.builder
, get_src(ctx
, instr
->src
[1]), offset
, "");
2605 if (load_components
== 3)
2606 data_type
= LLVMVectorType(ctx
->ac
.f32
, 4);
2607 else if (load_components
> 1)
2608 data_type
= LLVMVectorType(ctx
->ac
.f32
, load_components
);
2610 if (load_components
>= 3)
2611 load_name
= "llvm.amdgcn.buffer.load.v4f32";
2612 else if (load_components
== 2)
2613 load_name
= "llvm.amdgcn.buffer.load.v2f32";
2614 else if (load_components
== 1)
2615 load_name
= "llvm.amdgcn.buffer.load.f32";
2617 unreachable("unhandled number of components");
2619 LLVMValueRef params
[] = {
2620 ctx
->abi
->load_ssbo(ctx
->abi
,
2621 get_src(ctx
, instr
->src
[0]),
2629 results
[i
> 0 ? 1 : 0] = ac_build_intrinsic(&ctx
->ac
, load_name
, data_type
, params
, 5, 0);
2633 LLVMValueRef ret
= results
[0];
2634 if (num_components
> 4 || num_components
== 3) {
2635 LLVMValueRef masks
[] = {
2636 LLVMConstInt(ctx
->ac
.i32
, 0, false), LLVMConstInt(ctx
->ac
.i32
, 1, false),
2637 LLVMConstInt(ctx
->ac
.i32
, 2, false), LLVMConstInt(ctx
->ac
.i32
, 3, false),
2638 LLVMConstInt(ctx
->ac
.i32
, 4, false), LLVMConstInt(ctx
->ac
.i32
, 5, false),
2639 LLVMConstInt(ctx
->ac
.i32
, 6, false), LLVMConstInt(ctx
->ac
.i32
, 7, false)
2642 LLVMValueRef swizzle
= LLVMConstVector(masks
, num_components
);
2643 ret
= LLVMBuildShuffleVector(ctx
->ac
.builder
, results
[0],
2644 results
[num_components
> 4 ? 1 : 0], swizzle
, "");
2647 return LLVMBuildBitCast(ctx
->ac
.builder
, ret
,
2648 get_def_type(ctx
, &instr
->dest
.ssa
), "");
2651 static LLVMValueRef
visit_load_ubo_buffer(struct ac_nir_context
*ctx
,
2652 const nir_intrinsic_instr
*instr
)
2655 LLVMValueRef rsrc
= get_src(ctx
, instr
->src
[0]);
2656 LLVMValueRef offset
= get_src(ctx
, instr
->src
[1]);
2657 int num_components
= instr
->num_components
;
2659 if (ctx
->abi
->load_ubo
)
2660 rsrc
= ctx
->abi
->load_ubo(ctx
->abi
, rsrc
);
2662 if (instr
->dest
.ssa
.bit_size
== 64)
2663 num_components
*= 2;
2665 ret
= ac_build_buffer_load(&ctx
->ac
, rsrc
, num_components
, NULL
, offset
,
2666 NULL
, 0, false, false, true, true);
2667 ret
= trim_vector(&ctx
->ac
, ret
, num_components
);
2668 return LLVMBuildBitCast(ctx
->ac
.builder
, ret
,
2669 get_def_type(ctx
, &instr
->dest
.ssa
), "");
2673 get_deref_offset(struct ac_nir_context
*ctx
, nir_deref_var
*deref
,
2674 bool vs_in
, unsigned *vertex_index_out
,
2675 LLVMValueRef
*vertex_index_ref
,
2676 unsigned *const_out
, LLVMValueRef
*indir_out
)
2678 unsigned const_offset
= 0;
2679 nir_deref
*tail
= &deref
->deref
;
2680 LLVMValueRef offset
= NULL
;
2682 if (vertex_index_out
!= NULL
|| vertex_index_ref
!= NULL
) {
2684 nir_deref_array
*deref_array
= nir_deref_as_array(tail
);
2685 if (vertex_index_out
)
2686 *vertex_index_out
= deref_array
->base_offset
;
2688 if (vertex_index_ref
) {
2689 LLVMValueRef vtx
= LLVMConstInt(ctx
->ac
.i32
, deref_array
->base_offset
, false);
2690 if (deref_array
->deref_array_type
== nir_deref_array_type_indirect
) {
2691 vtx
= LLVMBuildAdd(ctx
->ac
.builder
, vtx
, get_src(ctx
, deref_array
->indirect
), "");
2693 *vertex_index_ref
= vtx
;
2697 if (deref
->var
->data
.compact
) {
2698 assert(tail
->child
->deref_type
== nir_deref_type_array
);
2699 assert(glsl_type_is_scalar(glsl_without_array(deref
->var
->type
)));
2700 nir_deref_array
*deref_array
= nir_deref_as_array(tail
->child
);
2701 /* We always lower indirect dereferences for "compact" array vars. */
2702 assert(deref_array
->deref_array_type
== nir_deref_array_type_direct
);
2704 const_offset
= deref_array
->base_offset
;
2708 while (tail
->child
!= NULL
) {
2709 const struct glsl_type
*parent_type
= tail
->type
;
2712 if (tail
->deref_type
== nir_deref_type_array
) {
2713 nir_deref_array
*deref_array
= nir_deref_as_array(tail
);
2714 LLVMValueRef index
, stride
, local_offset
;
2715 unsigned size
= glsl_count_attribute_slots(tail
->type
, vs_in
);
2717 const_offset
+= size
* deref_array
->base_offset
;
2718 if (deref_array
->deref_array_type
== nir_deref_array_type_direct
)
2721 assert(deref_array
->deref_array_type
== nir_deref_array_type_indirect
);
2722 index
= get_src(ctx
, deref_array
->indirect
);
2723 stride
= LLVMConstInt(ctx
->ac
.i32
, size
, 0);
2724 local_offset
= LLVMBuildMul(ctx
->ac
.builder
, stride
, index
, "");
2727 offset
= LLVMBuildAdd(ctx
->ac
.builder
, offset
, local_offset
, "");
2729 offset
= local_offset
;
2730 } else if (tail
->deref_type
== nir_deref_type_struct
) {
2731 nir_deref_struct
*deref_struct
= nir_deref_as_struct(tail
);
2733 for (unsigned i
= 0; i
< deref_struct
->index
; i
++) {
2734 const struct glsl_type
*ft
= glsl_get_struct_field(parent_type
, i
);
2735 const_offset
+= glsl_count_attribute_slots(ft
, vs_in
);
2738 unreachable("unsupported deref type");
2742 if (const_offset
&& offset
)
2743 offset
= LLVMBuildAdd(ctx
->ac
.builder
, offset
,
2744 LLVMConstInt(ctx
->ac
.i32
, const_offset
, 0),
2747 *const_out
= const_offset
;
2748 *indir_out
= offset
;
2752 /* The offchip buffer layout for TCS->TES is
2754 * - attribute 0 of patch 0 vertex 0
2755 * - attribute 0 of patch 0 vertex 1
2756 * - attribute 0 of patch 0 vertex 2
2758 * - attribute 0 of patch 1 vertex 0
2759 * - attribute 0 of patch 1 vertex 1
2761 * - attribute 1 of patch 0 vertex 0
2762 * - attribute 1 of patch 0 vertex 1
2764 * - per patch attribute 0 of patch 0
2765 * - per patch attribute 0 of patch 1
2768 * Note that every attribute has 4 components.
2770 static LLVMValueRef
get_tcs_tes_buffer_address(struct nir_to_llvm_context
*ctx
,
2771 LLVMValueRef vertex_index
,
2772 LLVMValueRef param_index
)
2774 LLVMValueRef base_addr
, vertices_per_patch
, num_patches
, total_vertices
;
2775 LLVMValueRef param_stride
, constant16
;
2776 LLVMValueRef rel_patch_id
= get_rel_patch_id(ctx
);
2778 vertices_per_patch
= unpack_param(&ctx
->ac
, ctx
->tcs_offchip_layout
, 9, 6);
2779 num_patches
= unpack_param(&ctx
->ac
, ctx
->tcs_offchip_layout
, 0, 9);
2780 total_vertices
= LLVMBuildMul(ctx
->builder
, vertices_per_patch
,
2783 constant16
= LLVMConstInt(ctx
->ac
.i32
, 16, false);
2785 base_addr
= LLVMBuildMul(ctx
->builder
, rel_patch_id
,
2786 vertices_per_patch
, "");
2788 base_addr
= LLVMBuildAdd(ctx
->builder
, base_addr
,
2791 param_stride
= total_vertices
;
2793 base_addr
= rel_patch_id
;
2794 param_stride
= num_patches
;
2797 base_addr
= LLVMBuildAdd(ctx
->builder
, base_addr
,
2798 LLVMBuildMul(ctx
->builder
, param_index
,
2799 param_stride
, ""), "");
2801 base_addr
= LLVMBuildMul(ctx
->builder
, base_addr
, constant16
, "");
2803 if (!vertex_index
) {
2804 LLVMValueRef patch_data_offset
=
2805 unpack_param(&ctx
->ac
, ctx
->tcs_offchip_layout
, 16, 16);
2807 base_addr
= LLVMBuildAdd(ctx
->builder
, base_addr
,
2808 patch_data_offset
, "");
2813 static LLVMValueRef
get_tcs_tes_buffer_address_params(struct nir_to_llvm_context
*ctx
,
2815 unsigned const_index
,
2817 LLVMValueRef vertex_index
,
2818 LLVMValueRef indir_index
)
2820 LLVMValueRef param_index
;
2823 param_index
= LLVMBuildAdd(ctx
->builder
, LLVMConstInt(ctx
->ac
.i32
, param
, false),
2826 if (const_index
&& !is_compact
)
2827 param
+= const_index
;
2828 param_index
= LLVMConstInt(ctx
->ac
.i32
, param
, false);
2830 return get_tcs_tes_buffer_address(ctx
, vertex_index
, param_index
);
2834 mark_tess_output(struct nir_to_llvm_context
*ctx
,
2835 bool is_patch
, uint32_t param
)
2839 ctx
->tess_patch_outputs_written
|= (1ull << param
);
2841 ctx
->tess_outputs_written
|= (1ull << param
);
2845 get_dw_address(struct nir_to_llvm_context
*ctx
,
2846 LLVMValueRef dw_addr
,
2848 unsigned const_index
,
2849 bool compact_const_index
,
2850 LLVMValueRef vertex_index
,
2851 LLVMValueRef stride
,
2852 LLVMValueRef indir_index
)
2857 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2858 LLVMBuildMul(ctx
->builder
,
2864 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2865 LLVMBuildMul(ctx
->builder
, indir_index
,
2866 LLVMConstInt(ctx
->ac
.i32
, 4, false), ""), "");
2867 else if (const_index
&& !compact_const_index
)
2868 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2869 LLVMConstInt(ctx
->ac
.i32
, const_index
, false), "");
2871 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2872 LLVMConstInt(ctx
->ac
.i32
, param
* 4, false), "");
2874 if (const_index
&& compact_const_index
)
2875 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2876 LLVMConstInt(ctx
->ac
.i32
, const_index
, false), "");
2881 load_tcs_varyings(struct ac_shader_abi
*abi
,
2882 LLVMValueRef vertex_index
,
2883 LLVMValueRef indir_index
,
2884 unsigned const_index
,
2886 unsigned driver_location
,
2888 unsigned num_components
,
2893 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
2894 LLVMValueRef dw_addr
, stride
;
2895 LLVMValueRef value
[4], result
;
2896 unsigned param
= shader_io_get_unique_index(location
);
2899 stride
= unpack_param(&ctx
->ac
, ctx
->tcs_in_layout
, 13, 8);
2900 dw_addr
= get_tcs_in_current_patch_offset(ctx
);
2903 stride
= unpack_param(&ctx
->ac
, ctx
->tcs_out_layout
, 13, 8);
2904 dw_addr
= get_tcs_out_current_patch_offset(ctx
);
2906 dw_addr
= get_tcs_out_current_patch_data_offset(ctx
);
2911 dw_addr
= get_dw_address(ctx
, dw_addr
, param
, const_index
, is_compact
, vertex_index
, stride
,
2914 for (unsigned i
= 0; i
< num_components
+ component
; i
++) {
2915 value
[i
] = ac_lds_load(&ctx
->ac
, dw_addr
);
2916 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
,
2919 result
= ac_build_varying_gather_values(&ctx
->ac
, value
, num_components
, component
);
2924 store_tcs_output(struct ac_shader_abi
*abi
,
2925 LLVMValueRef vertex_index
,
2926 LLVMValueRef param_index
,
2927 unsigned const_index
,
2929 unsigned driver_location
,
2936 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
2937 LLVMValueRef dw_addr
;
2938 LLVMValueRef stride
= NULL
;
2939 LLVMValueRef buf_addr
= NULL
;
2941 bool store_lds
= true;
2944 if (!(ctx
->tcs_patch_outputs_read
& (1U << (location
- VARYING_SLOT_PATCH0
))))
2947 if (!(ctx
->tcs_outputs_read
& (1ULL << location
)))
2951 param
= shader_io_get_unique_index(location
);
2952 if (location
== VARYING_SLOT_CLIP_DIST0
&&
2953 is_compact
&& const_index
> 3) {
2959 stride
= unpack_param(&ctx
->ac
, ctx
->tcs_out_layout
, 13, 8);
2960 dw_addr
= get_tcs_out_current_patch_offset(ctx
);
2962 dw_addr
= get_tcs_out_current_patch_data_offset(ctx
);
2965 mark_tess_output(ctx
, is_patch
, param
);
2967 dw_addr
= get_dw_address(ctx
, dw_addr
, param
, const_index
, is_compact
, vertex_index
, stride
,
2969 buf_addr
= get_tcs_tes_buffer_address_params(ctx
, param
, const_index
, is_compact
,
2970 vertex_index
, param_index
);
2972 bool is_tess_factor
= false;
2973 if (location
== VARYING_SLOT_TESS_LEVEL_INNER
||
2974 location
== VARYING_SLOT_TESS_LEVEL_OUTER
)
2975 is_tess_factor
= true;
2977 unsigned base
= is_compact
? const_index
: 0;
2978 for (unsigned chan
= 0; chan
< 8; chan
++) {
2979 if (!(writemask
& (1 << chan
)))
2981 LLVMValueRef value
= ac_llvm_extract_elem(&ctx
->ac
, src
, chan
- component
);
2983 if (store_lds
|| is_tess_factor
) {
2984 LLVMValueRef dw_addr_chan
=
2985 LLVMBuildAdd(ctx
->builder
, dw_addr
,
2986 LLVMConstInt(ctx
->ac
.i32
, chan
, false), "");
2987 ac_lds_store(&ctx
->ac
, dw_addr_chan
, value
);
2990 if (!is_tess_factor
&& writemask
!= 0xF)
2991 ac_build_buffer_store_dword(&ctx
->ac
, ctx
->hs_ring_tess_offchip
, value
, 1,
2992 buf_addr
, ctx
->oc_lds
,
2993 4 * (base
+ chan
), 1, 0, true, false);
2996 if (writemask
== 0xF) {
2997 ac_build_buffer_store_dword(&ctx
->ac
, ctx
->hs_ring_tess_offchip
, src
, 4,
2998 buf_addr
, ctx
->oc_lds
,
2999 (base
* 4), 1, 0, true, false);
3004 load_tes_input(struct ac_shader_abi
*abi
,
3005 LLVMValueRef vertex_index
,
3006 LLVMValueRef param_index
,
3007 unsigned const_index
,
3009 unsigned driver_location
,
3011 unsigned num_components
,
3016 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
3017 LLVMValueRef buf_addr
;
3018 LLVMValueRef result
;
3019 unsigned param
= shader_io_get_unique_index(location
);
3021 if (location
== VARYING_SLOT_CLIP_DIST0
&& is_compact
&& const_index
> 3) {
3026 buf_addr
= get_tcs_tes_buffer_address_params(ctx
, param
, const_index
,
3027 is_compact
, vertex_index
, param_index
);
3029 LLVMValueRef comp_offset
= LLVMConstInt(ctx
->ac
.i32
, component
* 4, false);
3030 buf_addr
= LLVMBuildAdd(ctx
->builder
, buf_addr
, comp_offset
, "");
3032 result
= ac_build_buffer_load(&ctx
->ac
, ctx
->hs_ring_tess_offchip
, num_components
, NULL
,
3033 buf_addr
, ctx
->oc_lds
, is_compact
? (4 * const_index
) : 0, 1, 0, true, false);
3034 result
= trim_vector(&ctx
->ac
, result
, num_components
);
3039 load_gs_input(struct ac_shader_abi
*abi
,
3041 unsigned driver_location
,
3043 unsigned num_components
,
3044 unsigned vertex_index
,
3045 unsigned const_index
,
3048 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
3049 LLVMValueRef vtx_offset
;
3050 unsigned param
, vtx_offset_param
;
3051 LLVMValueRef value
[4], result
;
3053 vtx_offset_param
= vertex_index
;
3054 assert(vtx_offset_param
< 6);
3055 vtx_offset
= LLVMBuildMul(ctx
->builder
, ctx
->gs_vtx_offset
[vtx_offset_param
],
3056 LLVMConstInt(ctx
->ac
.i32
, 4, false), "");
3058 param
= shader_io_get_unique_index(location
);
3060 for (unsigned i
= component
; i
< num_components
+ component
; i
++) {
3061 if (ctx
->ac
.chip_class
>= GFX9
) {
3062 LLVMValueRef dw_addr
= ctx
->gs_vtx_offset
[vtx_offset_param
];
3063 dw_addr
= LLVMBuildAdd(ctx
->ac
.builder
, dw_addr
,
3064 LLVMConstInt(ctx
->ac
.i32
, param
* 4 + i
+ const_index
, 0), "");
3065 value
[i
] = ac_lds_load(&ctx
->ac
, dw_addr
);
3067 LLVMValueRef soffset
=
3068 LLVMConstInt(ctx
->ac
.i32
,
3069 (param
* 4 + i
+ const_index
) * 256,
3072 value
[i
] = ac_build_buffer_load(&ctx
->ac
,
3075 vtx_offset
, soffset
,
3076 0, 1, 0, true, false);
3078 value
[i
] = LLVMBuildBitCast(ctx
->builder
, value
[i
],
3082 result
= ac_build_varying_gather_values(&ctx
->ac
, value
, num_components
, component
);
3088 build_gep_for_deref(struct ac_nir_context
*ctx
,
3089 nir_deref_var
*deref
)
3091 struct hash_entry
*entry
= _mesa_hash_table_search(ctx
->vars
, deref
->var
);
3092 assert(entry
->data
);
3093 LLVMValueRef val
= entry
->data
;
3094 nir_deref
*tail
= deref
->deref
.child
;
3095 while (tail
!= NULL
) {
3096 LLVMValueRef offset
;
3097 switch (tail
->deref_type
) {
3098 case nir_deref_type_array
: {
3099 nir_deref_array
*array
= nir_deref_as_array(tail
);
3100 offset
= LLVMConstInt(ctx
->ac
.i32
, array
->base_offset
, 0);
3101 if (array
->deref_array_type
==
3102 nir_deref_array_type_indirect
) {
3103 offset
= LLVMBuildAdd(ctx
->ac
.builder
, offset
,
3110 case nir_deref_type_struct
: {
3111 nir_deref_struct
*deref_struct
=
3112 nir_deref_as_struct(tail
);
3113 offset
= LLVMConstInt(ctx
->ac
.i32
,
3114 deref_struct
->index
, 0);
3118 unreachable("bad deref type");
3120 val
= ac_build_gep0(&ctx
->ac
, val
, offset
);
3126 static LLVMValueRef
load_tess_varyings(struct ac_nir_context
*ctx
,
3127 nir_intrinsic_instr
*instr
,
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_varyings(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
, load_inputs
);
3148 return LLVMBuildBitCast(ctx
->ac
.builder
, result
, get_def_type(ctx
, &instr
->dest
.ssa
), "");
3151 static LLVMValueRef
visit_load_var(struct ac_nir_context
*ctx
,
3152 nir_intrinsic_instr
*instr
)
3154 LLVMValueRef values
[8];
3155 int idx
= instr
->variables
[0]->var
->data
.driver_location
;
3156 int ve
= instr
->dest
.ssa
.num_components
;
3157 unsigned comp
= instr
->variables
[0]->var
->data
.location_frac
;
3158 LLVMValueRef indir_index
;
3160 unsigned const_index
;
3161 unsigned stride
= instr
->variables
[0]->var
->data
.compact
? 1 : 4;
3162 bool vs_in
= ctx
->stage
== MESA_SHADER_VERTEX
&&
3163 instr
->variables
[0]->var
->data
.mode
== nir_var_shader_in
;
3164 get_deref_offset(ctx
, instr
->variables
[0], vs_in
, NULL
, NULL
,
3165 &const_index
, &indir_index
);
3167 if (instr
->dest
.ssa
.bit_size
== 64)
3170 switch (instr
->variables
[0]->var
->data
.mode
) {
3171 case nir_var_shader_in
:
3172 if (ctx
->stage
== MESA_SHADER_TESS_CTRL
||
3173 ctx
->stage
== MESA_SHADER_TESS_EVAL
) {
3174 return load_tess_varyings(ctx
, instr
, true);
3177 if (ctx
->stage
== MESA_SHADER_GEOMETRY
) {
3178 LLVMTypeRef type
= LLVMIntTypeInContext(ctx
->ac
.context
, instr
->dest
.ssa
.bit_size
);
3179 LLVMValueRef indir_index
;
3180 unsigned const_index
, vertex_index
;
3181 get_deref_offset(ctx
, instr
->variables
[0],
3182 false, &vertex_index
, NULL
,
3183 &const_index
, &indir_index
);
3185 return ctx
->abi
->load_inputs(ctx
->abi
, instr
->variables
[0]->var
->data
.location
,
3186 instr
->variables
[0]->var
->data
.driver_location
,
3187 instr
->variables
[0]->var
->data
.location_frac
, ve
,
3188 vertex_index
, const_index
, type
);
3191 for (unsigned chan
= comp
; chan
< ve
+ comp
; chan
++) {
3193 unsigned count
= glsl_count_attribute_slots(
3194 instr
->variables
[0]->var
->type
,
3195 ctx
->stage
== MESA_SHADER_VERTEX
);
3197 LLVMValueRef tmp_vec
= ac_build_gather_values_extended(
3198 &ctx
->ac
, ctx
->abi
->inputs
+ idx
+ chan
, count
,
3199 stride
, false, true);
3201 values
[chan
] = LLVMBuildExtractElement(ctx
->ac
.builder
,
3205 values
[chan
] = ctx
->abi
->inputs
[idx
+ chan
+ const_index
* stride
];
3209 for (unsigned chan
= 0; chan
< ve
; chan
++) {
3211 unsigned count
= glsl_count_attribute_slots(
3212 instr
->variables
[0]->var
->type
, false);
3214 LLVMValueRef tmp_vec
= ac_build_gather_values_extended(
3215 &ctx
->ac
, ctx
->locals
+ idx
+ chan
, count
,
3216 stride
, true, true);
3218 values
[chan
] = LLVMBuildExtractElement(ctx
->ac
.builder
,
3222 values
[chan
] = LLVMBuildLoad(ctx
->ac
.builder
, ctx
->locals
[idx
+ chan
+ const_index
* stride
], "");
3226 case nir_var_shared
: {
3227 LLVMValueRef address
= build_gep_for_deref(ctx
,
3228 instr
->variables
[0]);
3229 LLVMValueRef val
= LLVMBuildLoad(ctx
->ac
.builder
, address
, "");
3230 return LLVMBuildBitCast(ctx
->ac
.builder
, val
,
3231 get_def_type(ctx
, &instr
->dest
.ssa
),
3234 case nir_var_shader_out
:
3235 if (ctx
->stage
== MESA_SHADER_TESS_CTRL
) {
3236 return load_tess_varyings(ctx
, instr
, false);
3239 for (unsigned chan
= comp
; chan
< ve
+ comp
; chan
++) {
3241 unsigned count
= glsl_count_attribute_slots(
3242 instr
->variables
[0]->var
->type
, false);
3244 LLVMValueRef tmp_vec
= ac_build_gather_values_extended(
3245 &ctx
->ac
, ctx
->outputs
+ idx
+ chan
, count
,
3246 stride
, true, true);
3248 values
[chan
] = LLVMBuildExtractElement(ctx
->ac
.builder
,
3252 values
[chan
] = LLVMBuildLoad(ctx
->ac
.builder
,
3253 ctx
->outputs
[idx
+ chan
+ const_index
* stride
],
3259 unreachable("unhandle variable mode");
3261 ret
= ac_build_varying_gather_values(&ctx
->ac
, values
, ve
, comp
);
3262 return LLVMBuildBitCast(ctx
->ac
.builder
, ret
, get_def_type(ctx
, &instr
->dest
.ssa
), "");
3266 visit_store_var(struct ac_nir_context
*ctx
,
3267 nir_intrinsic_instr
*instr
)
3269 LLVMValueRef temp_ptr
, value
;
3270 int idx
= instr
->variables
[0]->var
->data
.driver_location
;
3271 unsigned comp
= instr
->variables
[0]->var
->data
.location_frac
;
3272 LLVMValueRef src
= ac_to_float(&ctx
->ac
, get_src(ctx
, instr
->src
[0]));
3273 int writemask
= instr
->const_index
[0] << comp
;
3274 LLVMValueRef indir_index
;
3275 unsigned const_index
;
3276 get_deref_offset(ctx
, instr
->variables
[0], false,
3277 NULL
, NULL
, &const_index
, &indir_index
);
3279 if (get_elem_bits(&ctx
->ac
, LLVMTypeOf(src
)) == 64) {
3281 src
= LLVMBuildBitCast(ctx
->ac
.builder
, src
,
3282 LLVMVectorType(ctx
->ac
.f32
, ac_get_llvm_num_components(src
) * 2),
3285 writemask
= widen_mask(writemask
, 2);
3288 switch (instr
->variables
[0]->var
->data
.mode
) {
3289 case nir_var_shader_out
:
3291 if (ctx
->stage
== MESA_SHADER_TESS_CTRL
) {
3292 LLVMValueRef vertex_index
= NULL
;
3293 LLVMValueRef indir_index
= NULL
;
3294 unsigned const_index
= 0;
3295 const unsigned location
= instr
->variables
[0]->var
->data
.location
;
3296 const unsigned driver_location
= instr
->variables
[0]->var
->data
.driver_location
;
3297 const unsigned comp
= instr
->variables
[0]->var
->data
.location_frac
;
3298 const bool is_patch
= instr
->variables
[0]->var
->data
.patch
;
3299 const bool is_compact
= instr
->variables
[0]->var
->data
.compact
;
3301 get_deref_offset(ctx
, instr
->variables
[0],
3302 false, NULL
, is_patch
? NULL
: &vertex_index
,
3303 &const_index
, &indir_index
);
3305 ctx
->abi
->store_tcs_outputs(ctx
->abi
, vertex_index
, indir_index
,
3306 const_index
, location
, driver_location
,
3307 src
, comp
, is_patch
, is_compact
, writemask
);
3311 for (unsigned chan
= 0; chan
< 8; chan
++) {
3313 if (!(writemask
& (1 << chan
)))
3316 value
= ac_llvm_extract_elem(&ctx
->ac
, src
, chan
- comp
);
3318 if (instr
->variables
[0]->var
->data
.compact
)
3321 unsigned count
= glsl_count_attribute_slots(
3322 instr
->variables
[0]->var
->type
, false);
3324 LLVMValueRef tmp_vec
= ac_build_gather_values_extended(
3325 &ctx
->ac
, ctx
->outputs
+ idx
+ chan
, count
,
3326 stride
, true, true);
3328 tmp_vec
= LLVMBuildInsertElement(ctx
->ac
.builder
, tmp_vec
,
3329 value
, indir_index
, "");
3330 build_store_values_extended(&ctx
->ac
, ctx
->outputs
+ idx
+ chan
,
3331 count
, stride
, tmp_vec
);
3334 temp_ptr
= ctx
->outputs
[idx
+ chan
+ const_index
* stride
];
3336 LLVMBuildStore(ctx
->ac
.builder
, value
, temp_ptr
);
3341 for (unsigned chan
= 0; chan
< 8; chan
++) {
3342 if (!(writemask
& (1 << chan
)))
3345 value
= ac_llvm_extract_elem(&ctx
->ac
, src
, chan
);
3347 unsigned count
= glsl_count_attribute_slots(
3348 instr
->variables
[0]->var
->type
, false);
3350 LLVMValueRef tmp_vec
= ac_build_gather_values_extended(
3351 &ctx
->ac
, ctx
->locals
+ idx
+ chan
, count
,
3354 tmp_vec
= LLVMBuildInsertElement(ctx
->ac
.builder
, tmp_vec
,
3355 value
, indir_index
, "");
3356 build_store_values_extended(&ctx
->ac
, ctx
->locals
+ idx
+ chan
,
3359 temp_ptr
= ctx
->locals
[idx
+ chan
+ const_index
* 4];
3361 LLVMBuildStore(ctx
->ac
.builder
, value
, temp_ptr
);
3365 case nir_var_shared
: {
3366 int writemask
= instr
->const_index
[0];
3367 LLVMValueRef address
= build_gep_for_deref(ctx
,
3368 instr
->variables
[0]);
3369 LLVMValueRef val
= get_src(ctx
, instr
->src
[0]);
3370 unsigned components
=
3371 glsl_get_vector_elements(
3372 nir_deref_tail(&instr
->variables
[0]->deref
)->type
);
3373 if (writemask
== (1 << components
) - 1) {
3374 val
= LLVMBuildBitCast(
3375 ctx
->ac
.builder
, val
,
3376 LLVMGetElementType(LLVMTypeOf(address
)), "");
3377 LLVMBuildStore(ctx
->ac
.builder
, val
, address
);
3379 for (unsigned chan
= 0; chan
< 4; chan
++) {
3380 if (!(writemask
& (1 << chan
)))
3383 LLVMBuildStructGEP(ctx
->ac
.builder
,
3385 LLVMValueRef src
= ac_llvm_extract_elem(&ctx
->ac
, val
,
3387 src
= LLVMBuildBitCast(
3388 ctx
->ac
.builder
, src
,
3389 LLVMGetElementType(LLVMTypeOf(ptr
)), "");
3390 LLVMBuildStore(ctx
->ac
.builder
, src
, ptr
);
3400 static int image_type_to_components_count(enum glsl_sampler_dim dim
, bool array
)
3403 case GLSL_SAMPLER_DIM_BUF
:
3405 case GLSL_SAMPLER_DIM_1D
:
3406 return array
? 2 : 1;
3407 case GLSL_SAMPLER_DIM_2D
:
3408 return array
? 3 : 2;
3409 case GLSL_SAMPLER_DIM_MS
:
3410 return array
? 4 : 3;
3411 case GLSL_SAMPLER_DIM_3D
:
3412 case GLSL_SAMPLER_DIM_CUBE
:
3414 case GLSL_SAMPLER_DIM_RECT
:
3415 case GLSL_SAMPLER_DIM_SUBPASS
:
3417 case GLSL_SAMPLER_DIM_SUBPASS_MS
:
3427 /* Adjust the sample index according to FMASK.
3429 * For uncompressed MSAA surfaces, FMASK should return 0x76543210,
3430 * which is the identity mapping. Each nibble says which physical sample
3431 * should be fetched to get that sample.
3433 * For example, 0x11111100 means there are only 2 samples stored and
3434 * the second sample covers 3/4 of the pixel. When reading samples 0
3435 * and 1, return physical sample 0 (determined by the first two 0s
3436 * in FMASK), otherwise return physical sample 1.
3438 * The sample index should be adjusted as follows:
3439 * sample_index = (fmask >> (sample_index * 4)) & 0xF;
3441 static LLVMValueRef
adjust_sample_index_using_fmask(struct ac_llvm_context
*ctx
,
3442 LLVMValueRef coord_x
, LLVMValueRef coord_y
,
3443 LLVMValueRef coord_z
,
3444 LLVMValueRef sample_index
,
3445 LLVMValueRef fmask_desc_ptr
)
3447 LLVMValueRef fmask_load_address
[4];
3450 fmask_load_address
[0] = coord_x
;
3451 fmask_load_address
[1] = coord_y
;
3453 fmask_load_address
[2] = coord_z
;
3454 fmask_load_address
[3] = LLVMGetUndef(ctx
->i32
);
3457 struct ac_image_args args
= {0};
3459 args
.opcode
= ac_image_load
;
3460 args
.da
= coord_z
? true : false;
3461 args
.resource
= fmask_desc_ptr
;
3463 args
.addr
= ac_build_gather_values(ctx
, fmask_load_address
, coord_z
? 4 : 2);
3465 res
= ac_build_image_opcode(ctx
, &args
);
3467 res
= ac_to_integer(ctx
, res
);
3468 LLVMValueRef four
= LLVMConstInt(ctx
->i32
, 4, false);
3469 LLVMValueRef F
= LLVMConstInt(ctx
->i32
, 0xf, false);
3471 LLVMValueRef fmask
= LLVMBuildExtractElement(ctx
->builder
,
3475 LLVMValueRef sample_index4
=
3476 LLVMBuildMul(ctx
->builder
, sample_index
, four
, "");
3477 LLVMValueRef shifted_fmask
=
3478 LLVMBuildLShr(ctx
->builder
, fmask
, sample_index4
, "");
3479 LLVMValueRef final_sample
=
3480 LLVMBuildAnd(ctx
->builder
, shifted_fmask
, F
, "");
3482 /* Don't rewrite the sample index if WORD1.DATA_FORMAT of the FMASK
3483 * resource descriptor is 0 (invalid),
3485 LLVMValueRef fmask_desc
=
3486 LLVMBuildBitCast(ctx
->builder
, fmask_desc_ptr
,
3489 LLVMValueRef fmask_word1
=
3490 LLVMBuildExtractElement(ctx
->builder
, fmask_desc
,
3493 LLVMValueRef word1_is_nonzero
=
3494 LLVMBuildICmp(ctx
->builder
, LLVMIntNE
,
3495 fmask_word1
, ctx
->i32_0
, "");
3497 /* Replace the MSAA sample index. */
3499 LLVMBuildSelect(ctx
->builder
, word1_is_nonzero
,
3500 final_sample
, sample_index
, "");
3501 return sample_index
;
3504 static LLVMValueRef
get_image_coords(struct ac_nir_context
*ctx
,
3505 const nir_intrinsic_instr
*instr
)
3507 const struct glsl_type
*type
= glsl_without_array(instr
->variables
[0]->var
->type
);
3509 LLVMValueRef src0
= get_src(ctx
, instr
->src
[0]);
3510 LLVMValueRef coords
[4];
3511 LLVMValueRef masks
[] = {
3512 LLVMConstInt(ctx
->ac
.i32
, 0, false), LLVMConstInt(ctx
->ac
.i32
, 1, false),
3513 LLVMConstInt(ctx
->ac
.i32
, 2, false), LLVMConstInt(ctx
->ac
.i32
, 3, false),
3516 LLVMValueRef sample_index
= ac_llvm_extract_elem(&ctx
->ac
, get_src(ctx
, instr
->src
[1]), 0);
3519 enum glsl_sampler_dim dim
= glsl_get_sampler_dim(type
);
3520 bool is_array
= glsl_sampler_type_is_array(type
);
3521 bool add_frag_pos
= (dim
== GLSL_SAMPLER_DIM_SUBPASS
||
3522 dim
== GLSL_SAMPLER_DIM_SUBPASS_MS
);
3523 bool is_ms
= (dim
== GLSL_SAMPLER_DIM_MS
||
3524 dim
== GLSL_SAMPLER_DIM_SUBPASS_MS
);
3525 bool gfx9_1d
= ctx
->ac
.chip_class
>= GFX9
&& dim
== GLSL_SAMPLER_DIM_1D
;
3526 count
= image_type_to_components_count(dim
, is_array
);
3529 LLVMValueRef fmask_load_address
[3];
3532 fmask_load_address
[0] = LLVMBuildExtractElement(ctx
->ac
.builder
, src0
, masks
[0], "");
3533 fmask_load_address
[1] = LLVMBuildExtractElement(ctx
->ac
.builder
, src0
, masks
[1], "");
3535 fmask_load_address
[2] = LLVMBuildExtractElement(ctx
->ac
.builder
, src0
, masks
[2], "");
3537 fmask_load_address
[2] = NULL
;
3539 for (chan
= 0; chan
< 2; ++chan
)
3540 fmask_load_address
[chan
] =
3541 LLVMBuildAdd(ctx
->ac
.builder
, fmask_load_address
[chan
],
3542 LLVMBuildFPToUI(ctx
->ac
.builder
, ctx
->abi
->frag_pos
[chan
],
3543 ctx
->ac
.i32
, ""), "");
3544 fmask_load_address
[2] = ac_to_integer(&ctx
->ac
, ctx
->abi
->inputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_LAYER
, 0)]);
3546 sample_index
= adjust_sample_index_using_fmask(&ctx
->ac
,
3547 fmask_load_address
[0],
3548 fmask_load_address
[1],
3549 fmask_load_address
[2],
3551 get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_FMASK
, NULL
, true, false));
3553 if (count
== 1 && !gfx9_1d
) {
3554 if (instr
->src
[0].ssa
->num_components
)
3555 res
= LLVMBuildExtractElement(ctx
->ac
.builder
, src0
, masks
[0], "");
3562 for (chan
= 0; chan
< count
; ++chan
) {
3563 coords
[chan
] = ac_llvm_extract_elem(&ctx
->ac
, src0
, chan
);
3566 for (chan
= 0; chan
< 2; ++chan
)
3567 coords
[chan
] = LLVMBuildAdd(ctx
->ac
.builder
, coords
[chan
], LLVMBuildFPToUI(ctx
->ac
.builder
, ctx
->abi
->frag_pos
[chan
],
3568 ctx
->ac
.i32
, ""), "");
3569 coords
[2] = ac_to_integer(&ctx
->ac
, ctx
->abi
->inputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_LAYER
, 0)]);
3575 coords
[2] = coords
[1];
3576 coords
[1] = ctx
->ac
.i32_0
;
3578 coords
[1] = ctx
->ac
.i32_0
;
3583 coords
[count
] = sample_index
;
3588 coords
[3] = LLVMGetUndef(ctx
->ac
.i32
);
3591 res
= ac_build_gather_values(&ctx
->ac
, coords
, count
);
3596 static LLVMValueRef
visit_image_load(struct ac_nir_context
*ctx
,
3597 const nir_intrinsic_instr
*instr
)
3599 LLVMValueRef params
[7];
3601 char intrinsic_name
[64];
3602 const nir_variable
*var
= instr
->variables
[0]->var
;
3603 const struct glsl_type
*type
= var
->type
;
3605 if(instr
->variables
[0]->deref
.child
)
3606 type
= instr
->variables
[0]->deref
.child
->type
;
3608 type
= glsl_without_array(type
);
3610 const enum glsl_sampler_dim dim
= glsl_get_sampler_dim(type
);
3611 if (dim
== GLSL_SAMPLER_DIM_BUF
) {
3612 unsigned mask
= nir_ssa_def_components_read(&instr
->dest
.ssa
);
3613 unsigned num_channels
= util_last_bit(mask
);
3614 LLVMValueRef rsrc
, vindex
;
3616 rsrc
= get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_BUFFER
, NULL
, true, false);
3617 vindex
= LLVMBuildExtractElement(ctx
->ac
.builder
, get_src(ctx
, instr
->src
[0]),
3620 /* TODO: set "glc" and "can_speculate" when OpenGL needs it. */
3621 res
= ac_build_buffer_load_format(&ctx
->ac
, rsrc
, vindex
,
3622 ctx
->ac
.i32_0
, num_channels
,
3624 res
= ac_build_expand_to_vec4(&ctx
->ac
, res
, num_channels
);
3626 res
= trim_vector(&ctx
->ac
, res
, instr
->dest
.ssa
.num_components
);
3627 res
= ac_to_integer(&ctx
->ac
, res
);
3629 bool is_da
= glsl_sampler_type_is_array(type
) ||
3630 dim
== GLSL_SAMPLER_DIM_CUBE
||
3631 dim
== GLSL_SAMPLER_DIM_3D
||
3632 dim
== GLSL_SAMPLER_DIM_SUBPASS
||
3633 dim
== GLSL_SAMPLER_DIM_SUBPASS_MS
;
3634 LLVMValueRef da
= is_da
? ctx
->ac
.i1true
: ctx
->ac
.i1false
;
3635 LLVMValueRef glc
= ctx
->ac
.i1false
;
3636 LLVMValueRef slc
= ctx
->ac
.i1false
;
3638 params
[0] = get_image_coords(ctx
, instr
);
3639 params
[1] = get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_IMAGE
, NULL
, true, false);
3640 params
[2] = LLVMConstInt(ctx
->ac
.i32
, 15, false); /* dmask */
3643 params
[5] = ctx
->ac
.i1false
;
3646 ac_get_image_intr_name("llvm.amdgcn.image.load",
3647 ctx
->ac
.v4f32
, /* vdata */
3648 LLVMTypeOf(params
[0]), /* coords */
3649 LLVMTypeOf(params
[1]), /* rsrc */
3650 intrinsic_name
, sizeof(intrinsic_name
));
3652 res
= ac_build_intrinsic(&ctx
->ac
, intrinsic_name
, ctx
->ac
.v4f32
,
3653 params
, 7, AC_FUNC_ATTR_READONLY
);
3655 return ac_to_integer(&ctx
->ac
, res
);
3658 static void visit_image_store(struct ac_nir_context
*ctx
,
3659 nir_intrinsic_instr
*instr
)
3661 LLVMValueRef params
[8];
3662 char intrinsic_name
[64];
3663 const nir_variable
*var
= instr
->variables
[0]->var
;
3664 const struct glsl_type
*type
= glsl_without_array(var
->type
);
3665 const enum glsl_sampler_dim dim
= glsl_get_sampler_dim(type
);
3666 LLVMValueRef glc
= ctx
->ac
.i1false
;
3667 bool force_glc
= ctx
->ac
.chip_class
== SI
;
3669 glc
= ctx
->ac
.i1true
;
3671 if (dim
== GLSL_SAMPLER_DIM_BUF
) {
3672 params
[0] = ac_to_float(&ctx
->ac
, get_src(ctx
, instr
->src
[2])); /* data */
3673 params
[1] = get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_BUFFER
, NULL
, true, true);
3674 params
[2] = LLVMBuildExtractElement(ctx
->ac
.builder
, get_src(ctx
, instr
->src
[0]),
3675 ctx
->ac
.i32_0
, ""); /* vindex */
3676 params
[3] = ctx
->ac
.i32_0
; /* voffset */
3677 params
[4] = glc
; /* glc */
3678 params
[5] = ctx
->ac
.i1false
; /* slc */
3679 ac_build_intrinsic(&ctx
->ac
, "llvm.amdgcn.buffer.store.format.v4f32", ctx
->ac
.voidt
,
3682 bool is_da
= glsl_sampler_type_is_array(type
) ||
3683 dim
== GLSL_SAMPLER_DIM_CUBE
||
3684 dim
== GLSL_SAMPLER_DIM_3D
;
3685 LLVMValueRef da
= is_da
? ctx
->ac
.i1true
: ctx
->ac
.i1false
;
3686 LLVMValueRef slc
= ctx
->ac
.i1false
;
3688 params
[0] = ac_to_float(&ctx
->ac
, get_src(ctx
, instr
->src
[2]));
3689 params
[1] = get_image_coords(ctx
, instr
); /* coords */
3690 params
[2] = get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_IMAGE
, NULL
, true, true);
3691 params
[3] = LLVMConstInt(ctx
->ac
.i32
, 15, false); /* dmask */
3694 params
[6] = ctx
->ac
.i1false
;
3697 ac_get_image_intr_name("llvm.amdgcn.image.store",
3698 LLVMTypeOf(params
[0]), /* vdata */
3699 LLVMTypeOf(params
[1]), /* coords */
3700 LLVMTypeOf(params
[2]), /* rsrc */
3701 intrinsic_name
, sizeof(intrinsic_name
));
3703 ac_build_intrinsic(&ctx
->ac
, intrinsic_name
, ctx
->ac
.voidt
,
3709 static LLVMValueRef
visit_image_atomic(struct ac_nir_context
*ctx
,
3710 const nir_intrinsic_instr
*instr
)
3712 LLVMValueRef params
[7];
3713 int param_count
= 0;
3714 const nir_variable
*var
= instr
->variables
[0]->var
;
3716 const char *atomic_name
;
3717 char intrinsic_name
[41];
3718 const struct glsl_type
*type
= glsl_without_array(var
->type
);
3719 MAYBE_UNUSED
int length
;
3721 bool is_unsigned
= glsl_get_sampler_result_type(type
) == GLSL_TYPE_UINT
;
3723 switch (instr
->intrinsic
) {
3724 case nir_intrinsic_image_atomic_add
:
3725 atomic_name
= "add";
3727 case nir_intrinsic_image_atomic_min
:
3728 atomic_name
= is_unsigned
? "umin" : "smin";
3730 case nir_intrinsic_image_atomic_max
:
3731 atomic_name
= is_unsigned
? "umax" : "smax";
3733 case nir_intrinsic_image_atomic_and
:
3734 atomic_name
= "and";
3736 case nir_intrinsic_image_atomic_or
:
3739 case nir_intrinsic_image_atomic_xor
:
3740 atomic_name
= "xor";
3742 case nir_intrinsic_image_atomic_exchange
:
3743 atomic_name
= "swap";
3745 case nir_intrinsic_image_atomic_comp_swap
:
3746 atomic_name
= "cmpswap";
3752 if (instr
->intrinsic
== nir_intrinsic_image_atomic_comp_swap
)
3753 params
[param_count
++] = get_src(ctx
, instr
->src
[3]);
3754 params
[param_count
++] = get_src(ctx
, instr
->src
[2]);
3756 if (glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_BUF
) {
3757 params
[param_count
++] = get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_BUFFER
,
3759 params
[param_count
++] = LLVMBuildExtractElement(ctx
->ac
.builder
, get_src(ctx
, instr
->src
[0]),
3760 ctx
->ac
.i32_0
, ""); /* vindex */
3761 params
[param_count
++] = ctx
->ac
.i32_0
; /* voffset */
3762 params
[param_count
++] = ctx
->ac
.i1false
; /* slc */
3764 length
= snprintf(intrinsic_name
, sizeof(intrinsic_name
),
3765 "llvm.amdgcn.buffer.atomic.%s", atomic_name
);
3767 char coords_type
[8];
3769 bool da
= glsl_sampler_type_is_array(type
) ||
3770 glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_CUBE
;
3772 LLVMValueRef coords
= params
[param_count
++] = get_image_coords(ctx
, instr
);
3773 params
[param_count
++] = get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_IMAGE
,
3775 params
[param_count
++] = ctx
->ac
.i1false
; /* r128 */
3776 params
[param_count
++] = da
? ctx
->ac
.i1true
: ctx
->ac
.i1false
; /* da */
3777 params
[param_count
++] = ctx
->ac
.i1false
; /* slc */
3779 build_int_type_name(LLVMTypeOf(coords
),
3780 coords_type
, sizeof(coords_type
));
3782 length
= snprintf(intrinsic_name
, sizeof(intrinsic_name
),
3783 "llvm.amdgcn.image.atomic.%s.%s", atomic_name
, coords_type
);
3786 assert(length
< sizeof(intrinsic_name
));
3787 return ac_build_intrinsic(&ctx
->ac
, intrinsic_name
, ctx
->ac
.i32
, params
, param_count
, 0);
3790 static LLVMValueRef
visit_image_size(struct ac_nir_context
*ctx
,
3791 const nir_intrinsic_instr
*instr
)
3794 const nir_variable
*var
= instr
->variables
[0]->var
;
3795 const struct glsl_type
*type
= instr
->variables
[0]->var
->type
;
3796 bool da
= glsl_sampler_type_is_array(var
->type
) ||
3797 glsl_get_sampler_dim(var
->type
) == GLSL_SAMPLER_DIM_CUBE
||
3798 glsl_get_sampler_dim(var
->type
) == GLSL_SAMPLER_DIM_3D
;
3799 if(instr
->variables
[0]->deref
.child
)
3800 type
= instr
->variables
[0]->deref
.child
->type
;
3802 if (glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_BUF
)
3803 return get_buffer_size(ctx
,
3804 get_sampler_desc(ctx
, instr
->variables
[0],
3805 AC_DESC_BUFFER
, NULL
, true, false), true);
3807 struct ac_image_args args
= { 0 };
3811 args
.resource
= get_sampler_desc(ctx
, instr
->variables
[0], AC_DESC_IMAGE
, NULL
, true, false);
3812 args
.opcode
= ac_image_get_resinfo
;
3813 args
.addr
= ctx
->ac
.i32_0
;
3815 res
= ac_build_image_opcode(&ctx
->ac
, &args
);
3817 LLVMValueRef two
= LLVMConstInt(ctx
->ac
.i32
, 2, false);
3819 if (glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_CUBE
&&
3820 glsl_sampler_type_is_array(type
)) {
3821 LLVMValueRef six
= LLVMConstInt(ctx
->ac
.i32
, 6, false);
3822 LLVMValueRef z
= LLVMBuildExtractElement(ctx
->ac
.builder
, res
, two
, "");
3823 z
= LLVMBuildSDiv(ctx
->ac
.builder
, z
, six
, "");
3824 res
= LLVMBuildInsertElement(ctx
->ac
.builder
, res
, z
, two
, "");
3826 if (ctx
->ac
.chip_class
>= GFX9
&&
3827 glsl_get_sampler_dim(type
) == GLSL_SAMPLER_DIM_1D
&&
3828 glsl_sampler_type_is_array(type
)) {
3829 LLVMValueRef layers
= LLVMBuildExtractElement(ctx
->ac
.builder
, res
, two
, "");
3830 res
= LLVMBuildInsertElement(ctx
->ac
.builder
, res
, layers
,
3837 #define NOOP_WAITCNT 0xf7f
3838 #define LGKM_CNT 0x07f
3839 #define VM_CNT 0xf70
3841 static void emit_membar(struct nir_to_llvm_context
*ctx
,
3842 const nir_intrinsic_instr
*instr
)
3844 unsigned waitcnt
= NOOP_WAITCNT
;
3846 switch (instr
->intrinsic
) {
3847 case nir_intrinsic_memory_barrier
:
3848 case nir_intrinsic_group_memory_barrier
:
3849 waitcnt
&= VM_CNT
& LGKM_CNT
;
3851 case nir_intrinsic_memory_barrier_atomic_counter
:
3852 case nir_intrinsic_memory_barrier_buffer
:
3853 case nir_intrinsic_memory_barrier_image
:
3856 case nir_intrinsic_memory_barrier_shared
:
3857 waitcnt
&= LGKM_CNT
;
3862 if (waitcnt
!= NOOP_WAITCNT
)
3863 ac_build_waitcnt(&ctx
->ac
, waitcnt
);
3866 static void emit_barrier(struct ac_llvm_context
*ac
, gl_shader_stage stage
)
3868 /* SI only (thanks to a hw bug workaround):
3869 * The real barrier instruction isn’t needed, because an entire patch
3870 * always fits into a single wave.
3872 if (ac
->chip_class
== SI
&& stage
== MESA_SHADER_TESS_CTRL
) {
3873 ac_build_waitcnt(ac
, LGKM_CNT
& VM_CNT
);
3876 ac_build_intrinsic(ac
, "llvm.amdgcn.s.barrier",
3877 ac
->voidt
, NULL
, 0, AC_FUNC_ATTR_CONVERGENT
);
3880 static void emit_discard(struct ac_nir_context
*ctx
,
3881 const nir_intrinsic_instr
*instr
)
3885 if (instr
->intrinsic
== nir_intrinsic_discard_if
) {
3886 cond
= LLVMBuildICmp(ctx
->ac
.builder
, LLVMIntEQ
,
3887 get_src(ctx
, instr
->src
[0]),
3890 assert(instr
->intrinsic
== nir_intrinsic_discard
);
3891 cond
= LLVMConstInt(ctx
->ac
.i1
, false, 0);
3894 ac_build_kill_if_false(&ctx
->ac
, cond
);
3898 visit_load_helper_invocation(struct ac_nir_context
*ctx
)
3900 LLVMValueRef result
= ac_build_intrinsic(&ctx
->ac
,
3901 "llvm.amdgcn.ps.live",
3902 ctx
->ac
.i1
, NULL
, 0,
3903 AC_FUNC_ATTR_READNONE
);
3904 result
= LLVMBuildNot(ctx
->ac
.builder
, result
, "");
3905 return LLVMBuildSExt(ctx
->ac
.builder
, result
, ctx
->ac
.i32
, "");
3909 visit_load_local_invocation_index(struct nir_to_llvm_context
*ctx
)
3911 LLVMValueRef result
;
3912 LLVMValueRef thread_id
= ac_get_thread_id(&ctx
->ac
);
3913 result
= LLVMBuildAnd(ctx
->builder
, ctx
->tg_size
,
3914 LLVMConstInt(ctx
->ac
.i32
, 0xfc0, false), "");
3916 return LLVMBuildAdd(ctx
->builder
, result
, thread_id
, "");
3919 static LLVMValueRef
visit_var_atomic(struct nir_to_llvm_context
*ctx
,
3920 const nir_intrinsic_instr
*instr
)
3922 LLVMValueRef ptr
, result
;
3923 LLVMValueRef src
= get_src(ctx
->nir
, instr
->src
[0]);
3924 ptr
= build_gep_for_deref(ctx
->nir
, instr
->variables
[0]);
3926 if (instr
->intrinsic
== nir_intrinsic_var_atomic_comp_swap
) {
3927 LLVMValueRef src1
= get_src(ctx
->nir
, instr
->src
[1]);
3928 result
= LLVMBuildAtomicCmpXchg(ctx
->builder
,
3930 LLVMAtomicOrderingSequentiallyConsistent
,
3931 LLVMAtomicOrderingSequentiallyConsistent
,
3934 LLVMAtomicRMWBinOp op
;
3935 switch (instr
->intrinsic
) {
3936 case nir_intrinsic_var_atomic_add
:
3937 op
= LLVMAtomicRMWBinOpAdd
;
3939 case nir_intrinsic_var_atomic_umin
:
3940 op
= LLVMAtomicRMWBinOpUMin
;
3942 case nir_intrinsic_var_atomic_umax
:
3943 op
= LLVMAtomicRMWBinOpUMax
;
3945 case nir_intrinsic_var_atomic_imin
:
3946 op
= LLVMAtomicRMWBinOpMin
;
3948 case nir_intrinsic_var_atomic_imax
:
3949 op
= LLVMAtomicRMWBinOpMax
;
3951 case nir_intrinsic_var_atomic_and
:
3952 op
= LLVMAtomicRMWBinOpAnd
;
3954 case nir_intrinsic_var_atomic_or
:
3955 op
= LLVMAtomicRMWBinOpOr
;
3957 case nir_intrinsic_var_atomic_xor
:
3958 op
= LLVMAtomicRMWBinOpXor
;
3960 case nir_intrinsic_var_atomic_exchange
:
3961 op
= LLVMAtomicRMWBinOpXchg
;
3967 result
= LLVMBuildAtomicRMW(ctx
->builder
, op
, ptr
, ac_to_integer(&ctx
->ac
, src
),
3968 LLVMAtomicOrderingSequentiallyConsistent
,
3974 static LLVMValueRef
lookup_interp_param(struct ac_shader_abi
*abi
,
3975 enum glsl_interp_mode interp
, unsigned location
)
3977 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
3980 case INTERP_MODE_FLAT
:
3983 case INTERP_MODE_SMOOTH
:
3984 case INTERP_MODE_NONE
:
3985 if (location
== INTERP_CENTER
)
3986 return ctx
->persp_center
;
3987 else if (location
== INTERP_CENTROID
)
3988 return ctx
->persp_centroid
;
3989 else if (location
== INTERP_SAMPLE
)
3990 return ctx
->persp_sample
;
3992 case INTERP_MODE_NOPERSPECTIVE
:
3993 if (location
== INTERP_CENTER
)
3994 return ctx
->linear_center
;
3995 else if (location
== INTERP_CENTROID
)
3996 return ctx
->linear_centroid
;
3997 else if (location
== INTERP_SAMPLE
)
3998 return ctx
->linear_sample
;
4004 static LLVMValueRef
load_sample_position(struct ac_shader_abi
*abi
,
4005 LLVMValueRef sample_id
)
4007 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
4009 LLVMValueRef result
;
4010 LLVMValueRef ptr
= ac_build_gep0(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_PS_SAMPLE_POSITIONS
, false));
4012 ptr
= LLVMBuildBitCast(ctx
->builder
, ptr
,
4013 ac_array_in_const_addr_space(ctx
->ac
.v2f32
), "");
4015 sample_id
= LLVMBuildAdd(ctx
->builder
, sample_id
, ctx
->sample_pos_offset
, "");
4016 result
= ac_build_load_invariant(&ctx
->ac
, ptr
, sample_id
);
4021 static LLVMValueRef
load_sample_pos(struct ac_nir_context
*ctx
)
4023 LLVMValueRef values
[2];
4025 values
[0] = emit_ffract(&ctx
->ac
, ctx
->abi
->frag_pos
[0], 32);
4026 values
[1] = emit_ffract(&ctx
->ac
, ctx
->abi
->frag_pos
[1], 32);
4027 return ac_build_gather_values(&ctx
->ac
, values
, 2);
4030 static LLVMValueRef
load_sample_mask_in(struct ac_nir_context
*ctx
)
4032 uint8_t log2_ps_iter_samples
= ctx
->nctx
->shader_info
->info
.ps
.force_persample
? ctx
->nctx
->options
->key
.fs
.log2_num_samples
: ctx
->nctx
->options
->key
.fs
.log2_ps_iter_samples
;
4034 /* The bit pattern matches that used by fixed function fragment
4036 static const uint16_t ps_iter_masks
[] = {
4037 0xffff, /* not used */
4043 assert(log2_ps_iter_samples
< ARRAY_SIZE(ps_iter_masks
));
4045 uint32_t ps_iter_mask
= ps_iter_masks
[log2_ps_iter_samples
];
4047 LLVMValueRef result
, sample_id
;
4048 sample_id
= unpack_param(&ctx
->ac
, ctx
->abi
->ancillary
, 8, 4);
4049 sample_id
= LLVMBuildShl(ctx
->ac
.builder
, LLVMConstInt(ctx
->ac
.i32
, ps_iter_mask
, false), sample_id
, "");
4050 result
= LLVMBuildAnd(ctx
->ac
.builder
, sample_id
, ctx
->abi
->sample_coverage
, "");
4054 static LLVMValueRef
visit_interp(struct ac_nir_context
*ctx
,
4055 const nir_intrinsic_instr
*instr
)
4057 LLVMValueRef result
[4];
4058 LLVMValueRef interp_param
, attr_number
;
4061 LLVMValueRef src_c0
= NULL
;
4062 LLVMValueRef src_c1
= NULL
;
4063 LLVMValueRef src0
= NULL
;
4064 int input_index
= instr
->variables
[0]->var
->data
.location
- VARYING_SLOT_VAR0
;
4065 switch (instr
->intrinsic
) {
4066 case nir_intrinsic_interp_var_at_centroid
:
4067 location
= INTERP_CENTROID
;
4069 case nir_intrinsic_interp_var_at_sample
:
4070 case nir_intrinsic_interp_var_at_offset
:
4071 location
= INTERP_CENTER
;
4072 src0
= get_src(ctx
, instr
->src
[0]);
4078 if (instr
->intrinsic
== nir_intrinsic_interp_var_at_offset
) {
4079 src_c0
= ac_to_float(&ctx
->ac
, LLVMBuildExtractElement(ctx
->ac
.builder
, src0
, ctx
->ac
.i32_0
, ""));
4080 src_c1
= ac_to_float(&ctx
->ac
, LLVMBuildExtractElement(ctx
->ac
.builder
, src0
, ctx
->ac
.i32_1
, ""));
4081 } else if (instr
->intrinsic
== nir_intrinsic_interp_var_at_sample
) {
4082 LLVMValueRef sample_position
;
4083 LLVMValueRef halfval
= LLVMConstReal(ctx
->ac
.f32
, 0.5f
);
4085 /* fetch sample ID */
4086 sample_position
= ctx
->abi
->load_sample_position(ctx
->abi
, src0
);
4088 src_c0
= LLVMBuildExtractElement(ctx
->ac
.builder
, sample_position
, ctx
->ac
.i32_0
, "");
4089 src_c0
= LLVMBuildFSub(ctx
->ac
.builder
, src_c0
, halfval
, "");
4090 src_c1
= LLVMBuildExtractElement(ctx
->ac
.builder
, sample_position
, ctx
->ac
.i32_1
, "");
4091 src_c1
= LLVMBuildFSub(ctx
->ac
.builder
, src_c1
, halfval
, "");
4093 interp_param
= ctx
->abi
->lookup_interp_param(ctx
->abi
, instr
->variables
[0]->var
->data
.interpolation
, location
);
4094 attr_number
= LLVMConstInt(ctx
->ac
.i32
, input_index
, false);
4096 if (location
== INTERP_CENTER
) {
4097 LLVMValueRef ij_out
[2];
4098 LLVMValueRef ddxy_out
= emit_ddxy_interp(ctx
, interp_param
);
4101 * take the I then J parameters, and the DDX/Y for it, and
4102 * calculate the IJ inputs for the interpolator.
4103 * temp1 = ddx * offset/sample.x + I;
4104 * interp_param.I = ddy * offset/sample.y + temp1;
4105 * temp1 = ddx * offset/sample.x + J;
4106 * interp_param.J = ddy * offset/sample.y + temp1;
4108 for (unsigned i
= 0; i
< 2; i
++) {
4109 LLVMValueRef ix_ll
= LLVMConstInt(ctx
->ac
.i32
, i
, false);
4110 LLVMValueRef iy_ll
= LLVMConstInt(ctx
->ac
.i32
, i
+ 2, false);
4111 LLVMValueRef ddx_el
= LLVMBuildExtractElement(ctx
->ac
.builder
,
4112 ddxy_out
, ix_ll
, "");
4113 LLVMValueRef ddy_el
= LLVMBuildExtractElement(ctx
->ac
.builder
,
4114 ddxy_out
, iy_ll
, "");
4115 LLVMValueRef interp_el
= LLVMBuildExtractElement(ctx
->ac
.builder
,
4116 interp_param
, ix_ll
, "");
4117 LLVMValueRef temp1
, temp2
;
4119 interp_el
= LLVMBuildBitCast(ctx
->ac
.builder
, interp_el
,
4122 temp1
= LLVMBuildFMul(ctx
->ac
.builder
, ddx_el
, src_c0
, "");
4123 temp1
= LLVMBuildFAdd(ctx
->ac
.builder
, temp1
, interp_el
, "");
4125 temp2
= LLVMBuildFMul(ctx
->ac
.builder
, ddy_el
, src_c1
, "");
4126 temp2
= LLVMBuildFAdd(ctx
->ac
.builder
, temp2
, temp1
, "");
4128 ij_out
[i
] = LLVMBuildBitCast(ctx
->ac
.builder
,
4129 temp2
, ctx
->ac
.i32
, "");
4131 interp_param
= ac_build_gather_values(&ctx
->ac
, ij_out
, 2);
4135 for (chan
= 0; chan
< 4; chan
++) {
4136 LLVMValueRef llvm_chan
= LLVMConstInt(ctx
->ac
.i32
, chan
, false);
4139 interp_param
= LLVMBuildBitCast(ctx
->ac
.builder
,
4140 interp_param
, ctx
->ac
.v2f32
, "");
4141 LLVMValueRef i
= LLVMBuildExtractElement(
4142 ctx
->ac
.builder
, interp_param
, ctx
->ac
.i32_0
, "");
4143 LLVMValueRef j
= LLVMBuildExtractElement(
4144 ctx
->ac
.builder
, interp_param
, ctx
->ac
.i32_1
, "");
4146 result
[chan
] = ac_build_fs_interp(&ctx
->ac
,
4147 llvm_chan
, attr_number
,
4148 ctx
->abi
->prim_mask
, i
, j
);
4150 result
[chan
] = ac_build_fs_interp_mov(&ctx
->ac
,
4151 LLVMConstInt(ctx
->ac
.i32
, 2, false),
4152 llvm_chan
, attr_number
,
4153 ctx
->abi
->prim_mask
);
4156 return ac_build_varying_gather_values(&ctx
->ac
, result
, instr
->num_components
,
4157 instr
->variables
[0]->var
->data
.location_frac
);
4161 visit_emit_vertex(struct ac_shader_abi
*abi
, unsigned stream
, LLVMValueRef
*addrs
)
4163 LLVMValueRef gs_next_vertex
;
4164 LLVMValueRef can_emit
;
4166 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
4168 assert(stream
== 0);
4170 /* Write vertex attribute values to GSVS ring */
4171 gs_next_vertex
= LLVMBuildLoad(ctx
->builder
,
4172 ctx
->gs_next_vertex
,
4175 /* If this thread has already emitted the declared maximum number of
4176 * vertices, kill it: excessive vertex emissions are not supposed to
4177 * have any effect, and GS threads have no externally observable
4178 * effects other than emitting vertices.
4180 can_emit
= LLVMBuildICmp(ctx
->builder
, LLVMIntULT
, gs_next_vertex
,
4181 LLVMConstInt(ctx
->ac
.i32
, ctx
->gs_max_out_vertices
, false), "");
4182 ac_build_kill_if_false(&ctx
->ac
, can_emit
);
4184 /* loop num outputs */
4186 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
4187 LLVMValueRef
*out_ptr
= &addrs
[i
* 4];
4192 if (!(ctx
->output_mask
& (1ull << i
)))
4195 if (i
== VARYING_SLOT_CLIP_DIST0
) {
4196 /* pack clip and cull into a single set of slots */
4197 length
= ctx
->num_output_clips
+ ctx
->num_output_culls
;
4201 for (unsigned j
= 0; j
< length
; j
++) {
4202 LLVMValueRef out_val
= LLVMBuildLoad(ctx
->builder
,
4204 LLVMValueRef voffset
= LLVMConstInt(ctx
->ac
.i32
, (slot
* 4 + j
) * ctx
->gs_max_out_vertices
, false);
4205 voffset
= LLVMBuildAdd(ctx
->builder
, voffset
, gs_next_vertex
, "");
4206 voffset
= LLVMBuildMul(ctx
->builder
, voffset
, LLVMConstInt(ctx
->ac
.i32
, 4, false), "");
4208 out_val
= LLVMBuildBitCast(ctx
->builder
, out_val
, ctx
->ac
.i32
, "");
4210 ac_build_buffer_store_dword(&ctx
->ac
, ctx
->gsvs_ring
,
4212 voffset
, ctx
->gs2vs_offset
, 0,
4218 gs_next_vertex
= LLVMBuildAdd(ctx
->builder
, gs_next_vertex
,
4220 LLVMBuildStore(ctx
->builder
, gs_next_vertex
, ctx
->gs_next_vertex
);
4222 ac_build_sendmsg(&ctx
->ac
, AC_SENDMSG_GS_OP_EMIT
| AC_SENDMSG_GS
| (0 << 8), ctx
->gs_wave_id
);
4226 visit_end_primitive(struct ac_shader_abi
*abi
, unsigned stream
)
4228 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
4229 ac_build_sendmsg(&ctx
->ac
, AC_SENDMSG_GS_OP_CUT
| AC_SENDMSG_GS
| (stream
<< 8), ctx
->gs_wave_id
);
4233 load_tess_coord(struct ac_shader_abi
*abi
, LLVMTypeRef type
,
4234 unsigned num_components
)
4236 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
4238 LLVMValueRef coord
[4] = {
4245 if (ctx
->tes_primitive_mode
== GL_TRIANGLES
)
4246 coord
[2] = LLVMBuildFSub(ctx
->builder
, ctx
->ac
.f32_1
,
4247 LLVMBuildFAdd(ctx
->builder
, coord
[0], coord
[1], ""), "");
4249 LLVMValueRef result
= ac_build_gather_values(&ctx
->ac
, coord
, num_components
);
4250 return LLVMBuildBitCast(ctx
->builder
, result
, type
, "");
4254 load_patch_vertices_in(struct ac_shader_abi
*abi
)
4256 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
4257 return LLVMConstInt(ctx
->ac
.i32
, ctx
->options
->key
.tcs
.input_vertices
, false);
4260 static void visit_intrinsic(struct ac_nir_context
*ctx
,
4261 nir_intrinsic_instr
*instr
)
4263 LLVMValueRef result
= NULL
;
4265 switch (instr
->intrinsic
) {
4266 case nir_intrinsic_ballot
:
4267 result
= ac_build_ballot(&ctx
->ac
, get_src(ctx
, instr
->src
[0]));
4269 case nir_intrinsic_read_invocation
:
4270 case nir_intrinsic_read_first_invocation
: {
4271 LLVMValueRef args
[2];
4274 args
[0] = get_src(ctx
, instr
->src
[0]);
4277 const char *intr_name
;
4278 if (instr
->intrinsic
== nir_intrinsic_read_invocation
) {
4280 intr_name
= "llvm.amdgcn.readlane";
4283 args
[1] = get_src(ctx
, instr
->src
[1]);
4286 intr_name
= "llvm.amdgcn.readfirstlane";
4289 /* We currently have no other way to prevent LLVM from lifting the icmp
4290 * calls to a dominating basic block.
4292 ac_build_optimization_barrier(&ctx
->ac
, &args
[0]);
4294 result
= ac_build_intrinsic(&ctx
->ac
, intr_name
,
4295 ctx
->ac
.i32
, args
, num_args
,
4296 AC_FUNC_ATTR_READNONE
|
4297 AC_FUNC_ATTR_CONVERGENT
);
4300 case nir_intrinsic_load_subgroup_invocation
:
4301 result
= ac_get_thread_id(&ctx
->ac
);
4303 case nir_intrinsic_load_work_group_id
: {
4304 LLVMValueRef values
[3];
4306 for (int i
= 0; i
< 3; i
++) {
4307 values
[i
] = ctx
->nctx
->workgroup_ids
[i
] ?
4308 ctx
->nctx
->workgroup_ids
[i
] : ctx
->ac
.i32_0
;
4311 result
= ac_build_gather_values(&ctx
->ac
, values
, 3);
4314 case nir_intrinsic_load_base_vertex
: {
4315 result
= ctx
->abi
->base_vertex
;
4318 case nir_intrinsic_load_vertex_id_zero_base
: {
4319 result
= ctx
->abi
->vertex_id
;
4322 case nir_intrinsic_load_local_invocation_id
: {
4323 result
= ctx
->nctx
->local_invocation_ids
;
4326 case nir_intrinsic_load_base_instance
:
4327 result
= ctx
->abi
->start_instance
;
4329 case nir_intrinsic_load_draw_id
:
4330 result
= ctx
->abi
->draw_id
;
4332 case nir_intrinsic_load_view_index
:
4333 result
= ctx
->nctx
->view_index
? ctx
->nctx
->view_index
: ctx
->ac
.i32_0
;
4335 case nir_intrinsic_load_invocation_id
:
4336 if (ctx
->stage
== MESA_SHADER_TESS_CTRL
)
4337 result
= unpack_param(&ctx
->ac
, ctx
->abi
->tcs_rel_ids
, 8, 5);
4339 result
= ctx
->abi
->gs_invocation_id
;
4341 case nir_intrinsic_load_primitive_id
:
4342 if (ctx
->stage
== MESA_SHADER_GEOMETRY
) {
4343 result
= ctx
->abi
->gs_prim_id
;
4344 } else if (ctx
->stage
== MESA_SHADER_TESS_CTRL
) {
4345 result
= ctx
->abi
->tcs_patch_id
;
4346 } else if (ctx
->stage
== MESA_SHADER_TESS_EVAL
) {
4347 result
= ctx
->abi
->tes_patch_id
;
4349 fprintf(stderr
, "Unknown primitive id intrinsic: %d", ctx
->stage
);
4351 case nir_intrinsic_load_sample_id
:
4352 result
= unpack_param(&ctx
->ac
, ctx
->abi
->ancillary
, 8, 4);
4354 case nir_intrinsic_load_sample_pos
:
4355 result
= load_sample_pos(ctx
);
4357 case nir_intrinsic_load_sample_mask_in
:
4359 result
= load_sample_mask_in(ctx
);
4361 result
= ctx
->abi
->sample_coverage
;
4363 case nir_intrinsic_load_frag_coord
: {
4364 LLVMValueRef values
[4] = {
4365 ctx
->abi
->frag_pos
[0],
4366 ctx
->abi
->frag_pos
[1],
4367 ctx
->abi
->frag_pos
[2],
4368 ac_build_fdiv(&ctx
->ac
, ctx
->ac
.f32_1
, ctx
->abi
->frag_pos
[3])
4370 result
= ac_build_gather_values(&ctx
->ac
, values
, 4);
4373 case nir_intrinsic_load_front_face
:
4374 result
= ctx
->abi
->front_face
;
4376 case nir_intrinsic_load_helper_invocation
:
4377 result
= visit_load_helper_invocation(ctx
);
4379 case nir_intrinsic_load_instance_id
:
4380 result
= ctx
->abi
->instance_id
;
4382 case nir_intrinsic_load_num_work_groups
:
4383 result
= ctx
->nctx
->num_work_groups
;
4385 case nir_intrinsic_load_local_invocation_index
:
4386 result
= visit_load_local_invocation_index(ctx
->nctx
);
4388 case nir_intrinsic_load_push_constant
:
4389 result
= visit_load_push_constant(ctx
->nctx
, instr
);
4391 case nir_intrinsic_vulkan_resource_index
:
4392 result
= visit_vulkan_resource_index(ctx
->nctx
, instr
);
4394 case nir_intrinsic_vulkan_resource_reindex
:
4395 result
= visit_vulkan_resource_reindex(ctx
->nctx
, instr
);
4397 case nir_intrinsic_store_ssbo
:
4398 visit_store_ssbo(ctx
, instr
);
4400 case nir_intrinsic_load_ssbo
:
4401 result
= visit_load_buffer(ctx
, instr
);
4403 case nir_intrinsic_ssbo_atomic_add
:
4404 case nir_intrinsic_ssbo_atomic_imin
:
4405 case nir_intrinsic_ssbo_atomic_umin
:
4406 case nir_intrinsic_ssbo_atomic_imax
:
4407 case nir_intrinsic_ssbo_atomic_umax
:
4408 case nir_intrinsic_ssbo_atomic_and
:
4409 case nir_intrinsic_ssbo_atomic_or
:
4410 case nir_intrinsic_ssbo_atomic_xor
:
4411 case nir_intrinsic_ssbo_atomic_exchange
:
4412 case nir_intrinsic_ssbo_atomic_comp_swap
:
4413 result
= visit_atomic_ssbo(ctx
, instr
);
4415 case nir_intrinsic_load_ubo
:
4416 result
= visit_load_ubo_buffer(ctx
, instr
);
4418 case nir_intrinsic_get_buffer_size
:
4419 result
= visit_get_buffer_size(ctx
, instr
);
4421 case nir_intrinsic_load_var
:
4422 result
= visit_load_var(ctx
, instr
);
4424 case nir_intrinsic_store_var
:
4425 visit_store_var(ctx
, instr
);
4427 case nir_intrinsic_image_load
:
4428 result
= visit_image_load(ctx
, instr
);
4430 case nir_intrinsic_image_store
:
4431 visit_image_store(ctx
, instr
);
4433 case nir_intrinsic_image_atomic_add
:
4434 case nir_intrinsic_image_atomic_min
:
4435 case nir_intrinsic_image_atomic_max
:
4436 case nir_intrinsic_image_atomic_and
:
4437 case nir_intrinsic_image_atomic_or
:
4438 case nir_intrinsic_image_atomic_xor
:
4439 case nir_intrinsic_image_atomic_exchange
:
4440 case nir_intrinsic_image_atomic_comp_swap
:
4441 result
= visit_image_atomic(ctx
, instr
);
4443 case nir_intrinsic_image_size
:
4444 result
= visit_image_size(ctx
, instr
);
4446 case nir_intrinsic_discard
:
4447 case nir_intrinsic_discard_if
:
4448 emit_discard(ctx
, instr
);
4450 case nir_intrinsic_memory_barrier
:
4451 case nir_intrinsic_group_memory_barrier
:
4452 case nir_intrinsic_memory_barrier_atomic_counter
:
4453 case nir_intrinsic_memory_barrier_buffer
:
4454 case nir_intrinsic_memory_barrier_image
:
4455 case nir_intrinsic_memory_barrier_shared
:
4456 emit_membar(ctx
->nctx
, instr
);
4458 case nir_intrinsic_barrier
:
4459 emit_barrier(&ctx
->ac
, ctx
->stage
);
4461 case nir_intrinsic_var_atomic_add
:
4462 case nir_intrinsic_var_atomic_imin
:
4463 case nir_intrinsic_var_atomic_umin
:
4464 case nir_intrinsic_var_atomic_imax
:
4465 case nir_intrinsic_var_atomic_umax
:
4466 case nir_intrinsic_var_atomic_and
:
4467 case nir_intrinsic_var_atomic_or
:
4468 case nir_intrinsic_var_atomic_xor
:
4469 case nir_intrinsic_var_atomic_exchange
:
4470 case nir_intrinsic_var_atomic_comp_swap
:
4471 result
= visit_var_atomic(ctx
->nctx
, instr
);
4473 case nir_intrinsic_interp_var_at_centroid
:
4474 case nir_intrinsic_interp_var_at_sample
:
4475 case nir_intrinsic_interp_var_at_offset
:
4476 result
= visit_interp(ctx
, instr
);
4478 case nir_intrinsic_emit_vertex
:
4479 ctx
->abi
->emit_vertex(ctx
->abi
, nir_intrinsic_stream_id(instr
), ctx
->outputs
);
4481 case nir_intrinsic_end_primitive
:
4482 ctx
->abi
->emit_primitive(ctx
->abi
, nir_intrinsic_stream_id(instr
));
4484 case nir_intrinsic_load_tess_coord
: {
4485 LLVMTypeRef type
= ctx
->nctx
?
4486 get_def_type(ctx
->nctx
->nir
, &instr
->dest
.ssa
) :
4488 result
= ctx
->abi
->load_tess_coord(ctx
->abi
, type
, instr
->num_components
);
4491 case nir_intrinsic_load_tess_level_outer
:
4492 result
= ctx
->abi
->load_tess_level(ctx
->abi
, VARYING_SLOT_TESS_LEVEL_OUTER
);
4494 case nir_intrinsic_load_tess_level_inner
:
4495 result
= ctx
->abi
->load_tess_level(ctx
->abi
, VARYING_SLOT_TESS_LEVEL_INNER
);
4497 case nir_intrinsic_load_patch_vertices_in
:
4498 result
= ctx
->abi
->load_patch_vertices_in(ctx
->abi
);
4500 case nir_intrinsic_vote_all
: {
4501 LLVMValueRef tmp
= ac_build_vote_all(&ctx
->ac
, get_src(ctx
, instr
->src
[0]));
4502 result
= LLVMBuildSExt(ctx
->ac
.builder
, tmp
, ctx
->ac
.i32
, "");
4505 case nir_intrinsic_vote_any
: {
4506 LLVMValueRef tmp
= ac_build_vote_any(&ctx
->ac
, get_src(ctx
, instr
->src
[0]));
4507 result
= LLVMBuildSExt(ctx
->ac
.builder
, tmp
, ctx
->ac
.i32
, "");
4510 case nir_intrinsic_vote_eq
: {
4511 LLVMValueRef tmp
= ac_build_vote_eq(&ctx
->ac
, get_src(ctx
, instr
->src
[0]));
4512 result
= LLVMBuildSExt(ctx
->ac
.builder
, tmp
, ctx
->ac
.i32
, "");
4516 fprintf(stderr
, "Unknown intrinsic: ");
4517 nir_print_instr(&instr
->instr
, stderr
);
4518 fprintf(stderr
, "\n");
4522 _mesa_hash_table_insert(ctx
->defs
, &instr
->dest
.ssa
, result
);
4526 static LLVMValueRef
radv_load_ssbo(struct ac_shader_abi
*abi
,
4527 LLVMValueRef buffer_ptr
, bool write
)
4529 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
4530 LLVMValueRef result
;
4532 LLVMSetMetadata(buffer_ptr
, ctx
->ac
.uniform_md_kind
, ctx
->ac
.empty_md
);
4534 result
= LLVMBuildLoad(ctx
->builder
, buffer_ptr
, "");
4535 LLVMSetMetadata(result
, ctx
->ac
.invariant_load_md_kind
, ctx
->ac
.empty_md
);
4540 static LLVMValueRef
radv_load_ubo(struct ac_shader_abi
*abi
, LLVMValueRef buffer_ptr
)
4542 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
4543 LLVMValueRef result
;
4545 LLVMSetMetadata(buffer_ptr
, ctx
->ac
.uniform_md_kind
, ctx
->ac
.empty_md
);
4547 result
= LLVMBuildLoad(ctx
->builder
, buffer_ptr
, "");
4548 LLVMSetMetadata(result
, ctx
->ac
.invariant_load_md_kind
, ctx
->ac
.empty_md
);
4553 static LLVMValueRef
radv_get_sampler_desc(struct ac_shader_abi
*abi
,
4554 unsigned descriptor_set
,
4555 unsigned base_index
,
4556 unsigned constant_index
,
4558 enum ac_descriptor_type desc_type
,
4559 bool image
, bool write
)
4561 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
4562 LLVMValueRef list
= ctx
->descriptor_sets
[descriptor_set
];
4563 struct radv_descriptor_set_layout
*layout
= ctx
->options
->layout
->set
[descriptor_set
].layout
;
4564 struct radv_descriptor_set_binding_layout
*binding
= layout
->binding
+ base_index
;
4565 unsigned offset
= binding
->offset
;
4566 unsigned stride
= binding
->size
;
4568 LLVMBuilderRef builder
= ctx
->builder
;
4571 assert(base_index
< layout
->binding_count
);
4573 switch (desc_type
) {
4575 type
= ctx
->ac
.v8i32
;
4579 type
= ctx
->ac
.v8i32
;
4583 case AC_DESC_SAMPLER
:
4584 type
= ctx
->ac
.v4i32
;
4585 if (binding
->type
== VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER
)
4590 case AC_DESC_BUFFER
:
4591 type
= ctx
->ac
.v4i32
;
4595 unreachable("invalid desc_type\n");
4598 offset
+= constant_index
* stride
;
4600 if (desc_type
== AC_DESC_SAMPLER
&& binding
->immutable_samplers_offset
&&
4601 (!index
|| binding
->immutable_samplers_equal
)) {
4602 if (binding
->immutable_samplers_equal
)
4605 const uint32_t *samplers
= radv_immutable_samplers(layout
, binding
);
4607 LLVMValueRef constants
[] = {
4608 LLVMConstInt(ctx
->ac
.i32
, samplers
[constant_index
* 4 + 0], 0),
4609 LLVMConstInt(ctx
->ac
.i32
, samplers
[constant_index
* 4 + 1], 0),
4610 LLVMConstInt(ctx
->ac
.i32
, samplers
[constant_index
* 4 + 2], 0),
4611 LLVMConstInt(ctx
->ac
.i32
, samplers
[constant_index
* 4 + 3], 0),
4613 return ac_build_gather_values(&ctx
->ac
, constants
, 4);
4616 assert(stride
% type_size
== 0);
4619 index
= ctx
->ac
.i32_0
;
4621 index
= LLVMBuildMul(builder
, index
, LLVMConstInt(ctx
->ac
.i32
, stride
/ type_size
, 0), "");
4623 list
= ac_build_gep0(&ctx
->ac
, list
, LLVMConstInt(ctx
->ac
.i32
, offset
, 0));
4624 list
= LLVMBuildPointerCast(builder
, list
, ac_array_in_const_addr_space(type
), "");
4626 return ac_build_load_to_sgpr(&ctx
->ac
, list
, index
);
4629 static LLVMValueRef
get_sampler_desc(struct ac_nir_context
*ctx
,
4630 const nir_deref_var
*deref
,
4631 enum ac_descriptor_type desc_type
,
4632 const nir_tex_instr
*tex_instr
,
4633 bool image
, bool write
)
4635 LLVMValueRef index
= NULL
;
4636 unsigned constant_index
= 0;
4637 unsigned descriptor_set
;
4638 unsigned base_index
;
4641 assert(tex_instr
&& !image
);
4643 base_index
= tex_instr
->sampler_index
;
4645 const nir_deref
*tail
= &deref
->deref
;
4646 while (tail
->child
) {
4647 const nir_deref_array
*child
= nir_deref_as_array(tail
->child
);
4648 unsigned array_size
= glsl_get_aoa_size(tail
->child
->type
);
4653 assert(child
->deref_array_type
!= nir_deref_array_type_wildcard
);
4655 if (child
->deref_array_type
== nir_deref_array_type_indirect
) {
4656 LLVMValueRef indirect
= get_src(ctx
, child
->indirect
);
4658 indirect
= LLVMBuildMul(ctx
->ac
.builder
, indirect
,
4659 LLVMConstInt(ctx
->ac
.i32
, array_size
, false), "");
4664 index
= LLVMBuildAdd(ctx
->ac
.builder
, index
, indirect
, "");
4667 constant_index
+= child
->base_offset
* array_size
;
4669 tail
= &child
->deref
;
4671 descriptor_set
= deref
->var
->data
.descriptor_set
;
4672 base_index
= deref
->var
->data
.binding
;
4675 return ctx
->abi
->load_sampler_desc(ctx
->abi
,
4678 constant_index
, index
,
4679 desc_type
, image
, write
);
4682 static void set_tex_fetch_args(struct ac_llvm_context
*ctx
,
4683 struct ac_image_args
*args
,
4684 const nir_tex_instr
*instr
,
4686 LLVMValueRef res_ptr
, LLVMValueRef samp_ptr
,
4687 LLVMValueRef
*param
, unsigned count
,
4690 unsigned is_rect
= 0;
4691 bool da
= instr
->is_array
|| instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
;
4693 if (op
== nir_texop_lod
)
4695 /* Pad to power of two vector */
4696 while (count
< util_next_power_of_two(count
))
4697 param
[count
++] = LLVMGetUndef(ctx
->i32
);
4700 args
->addr
= ac_build_gather_values(ctx
, param
, count
);
4702 args
->addr
= param
[0];
4704 args
->resource
= res_ptr
;
4705 args
->sampler
= samp_ptr
;
4707 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_BUF
&& op
== nir_texop_txf
) {
4708 args
->addr
= param
[0];
4712 args
->dmask
= dmask
;
4713 args
->unorm
= is_rect
;
4717 /* Disable anisotropic filtering if BASE_LEVEL == LAST_LEVEL.
4720 * If BASE_LEVEL == LAST_LEVEL, the shader must disable anisotropic
4721 * filtering manually. The driver sets img7 to a mask clearing
4722 * MAX_ANISO_RATIO if BASE_LEVEL == LAST_LEVEL. The shader must do:
4723 * s_and_b32 samp0, samp0, img7
4726 * The ANISO_OVERRIDE sampler field enables this fix in TA.
4728 static LLVMValueRef
sici_fix_sampler_aniso(struct ac_nir_context
*ctx
,
4729 LLVMValueRef res
, LLVMValueRef samp
)
4731 LLVMBuilderRef builder
= ctx
->ac
.builder
;
4732 LLVMValueRef img7
, samp0
;
4734 if (ctx
->ac
.chip_class
>= VI
)
4737 img7
= LLVMBuildExtractElement(builder
, res
,
4738 LLVMConstInt(ctx
->ac
.i32
, 7, 0), "");
4739 samp0
= LLVMBuildExtractElement(builder
, samp
,
4740 LLVMConstInt(ctx
->ac
.i32
, 0, 0), "");
4741 samp0
= LLVMBuildAnd(builder
, samp0
, img7
, "");
4742 return LLVMBuildInsertElement(builder
, samp
, samp0
,
4743 LLVMConstInt(ctx
->ac
.i32
, 0, 0), "");
4746 static void tex_fetch_ptrs(struct ac_nir_context
*ctx
,
4747 nir_tex_instr
*instr
,
4748 LLVMValueRef
*res_ptr
, LLVMValueRef
*samp_ptr
,
4749 LLVMValueRef
*fmask_ptr
)
4751 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_BUF
)
4752 *res_ptr
= get_sampler_desc(ctx
, instr
->texture
, AC_DESC_BUFFER
, instr
, false, false);
4754 *res_ptr
= get_sampler_desc(ctx
, instr
->texture
, AC_DESC_IMAGE
, instr
, false, false);
4757 *samp_ptr
= get_sampler_desc(ctx
, instr
->sampler
, AC_DESC_SAMPLER
, instr
, false, false);
4759 *samp_ptr
= get_sampler_desc(ctx
, instr
->texture
, AC_DESC_SAMPLER
, instr
, false, false);
4760 if (instr
->sampler_dim
< GLSL_SAMPLER_DIM_RECT
)
4761 *samp_ptr
= sici_fix_sampler_aniso(ctx
, *res_ptr
, *samp_ptr
);
4763 if (fmask_ptr
&& !instr
->sampler
&& (instr
->op
== nir_texop_txf_ms
||
4764 instr
->op
== nir_texop_samples_identical
))
4765 *fmask_ptr
= get_sampler_desc(ctx
, instr
->texture
, AC_DESC_FMASK
, instr
, false, false);
4768 static LLVMValueRef
apply_round_slice(struct ac_llvm_context
*ctx
,
4771 coord
= ac_to_float(ctx
, coord
);
4772 coord
= ac_build_intrinsic(ctx
, "llvm.rint.f32", ctx
->f32
, &coord
, 1, 0);
4773 coord
= ac_to_integer(ctx
, coord
);
4777 static void visit_tex(struct ac_nir_context
*ctx
, nir_tex_instr
*instr
)
4779 LLVMValueRef result
= NULL
;
4780 struct ac_image_args args
= { 0 };
4781 unsigned dmask
= 0xf;
4782 LLVMValueRef address
[16];
4783 LLVMValueRef coords
[5];
4784 LLVMValueRef coord
= NULL
, lod
= NULL
, comparator
= NULL
;
4785 LLVMValueRef bias
= NULL
, offsets
= NULL
;
4786 LLVMValueRef res_ptr
, samp_ptr
, fmask_ptr
= NULL
, sample_index
= NULL
;
4787 LLVMValueRef ddx
= NULL
, ddy
= NULL
;
4788 LLVMValueRef derivs
[6];
4789 unsigned chan
, count
= 0;
4790 unsigned const_src
= 0, num_deriv_comp
= 0;
4791 bool lod_is_zero
= false;
4793 tex_fetch_ptrs(ctx
, instr
, &res_ptr
, &samp_ptr
, &fmask_ptr
);
4795 for (unsigned i
= 0; i
< instr
->num_srcs
; i
++) {
4796 switch (instr
->src
[i
].src_type
) {
4797 case nir_tex_src_coord
:
4798 coord
= get_src(ctx
, instr
->src
[i
].src
);
4800 case nir_tex_src_projector
:
4802 case nir_tex_src_comparator
:
4803 comparator
= get_src(ctx
, instr
->src
[i
].src
);
4805 case nir_tex_src_offset
:
4806 offsets
= get_src(ctx
, instr
->src
[i
].src
);
4809 case nir_tex_src_bias
:
4810 bias
= get_src(ctx
, instr
->src
[i
].src
);
4812 case nir_tex_src_lod
: {
4813 nir_const_value
*val
= nir_src_as_const_value(instr
->src
[i
].src
);
4815 if (val
&& val
->i32
[0] == 0)
4817 lod
= get_src(ctx
, instr
->src
[i
].src
);
4820 case nir_tex_src_ms_index
:
4821 sample_index
= get_src(ctx
, instr
->src
[i
].src
);
4823 case nir_tex_src_ms_mcs
:
4825 case nir_tex_src_ddx
:
4826 ddx
= get_src(ctx
, instr
->src
[i
].src
);
4827 num_deriv_comp
= instr
->src
[i
].src
.ssa
->num_components
;
4829 case nir_tex_src_ddy
:
4830 ddy
= get_src(ctx
, instr
->src
[i
].src
);
4832 case nir_tex_src_texture_offset
:
4833 case nir_tex_src_sampler_offset
:
4834 case nir_tex_src_plane
:
4840 if (instr
->op
== nir_texop_txs
&& instr
->sampler_dim
== GLSL_SAMPLER_DIM_BUF
) {
4841 result
= get_buffer_size(ctx
, res_ptr
, true);
4845 if (instr
->op
== nir_texop_texture_samples
) {
4846 LLVMValueRef res
, samples
, is_msaa
;
4847 res
= LLVMBuildBitCast(ctx
->ac
.builder
, res_ptr
, ctx
->ac
.v8i32
, "");
4848 samples
= LLVMBuildExtractElement(ctx
->ac
.builder
, res
,
4849 LLVMConstInt(ctx
->ac
.i32
, 3, false), "");
4850 is_msaa
= LLVMBuildLShr(ctx
->ac
.builder
, samples
,
4851 LLVMConstInt(ctx
->ac
.i32
, 28, false), "");
4852 is_msaa
= LLVMBuildAnd(ctx
->ac
.builder
, is_msaa
,
4853 LLVMConstInt(ctx
->ac
.i32
, 0xe, false), "");
4854 is_msaa
= LLVMBuildICmp(ctx
->ac
.builder
, LLVMIntEQ
, is_msaa
,
4855 LLVMConstInt(ctx
->ac
.i32
, 0xe, false), "");
4857 samples
= LLVMBuildLShr(ctx
->ac
.builder
, samples
,
4858 LLVMConstInt(ctx
->ac
.i32
, 16, false), "");
4859 samples
= LLVMBuildAnd(ctx
->ac
.builder
, samples
,
4860 LLVMConstInt(ctx
->ac
.i32
, 0xf, false), "");
4861 samples
= LLVMBuildShl(ctx
->ac
.builder
, ctx
->ac
.i32_1
,
4863 samples
= LLVMBuildSelect(ctx
->ac
.builder
, is_msaa
, samples
,
4870 for (chan
= 0; chan
< instr
->coord_components
; chan
++)
4871 coords
[chan
] = ac_llvm_extract_elem(&ctx
->ac
, coord
, chan
);
4873 if (offsets
&& instr
->op
!= nir_texop_txf
) {
4874 LLVMValueRef offset
[3], pack
;
4875 for (chan
= 0; chan
< 3; ++chan
)
4876 offset
[chan
] = ctx
->ac
.i32_0
;
4879 for (chan
= 0; chan
< ac_get_llvm_num_components(offsets
); chan
++) {
4880 offset
[chan
] = ac_llvm_extract_elem(&ctx
->ac
, offsets
, chan
);
4881 offset
[chan
] = LLVMBuildAnd(ctx
->ac
.builder
, offset
[chan
],
4882 LLVMConstInt(ctx
->ac
.i32
, 0x3f, false), "");
4884 offset
[chan
] = LLVMBuildShl(ctx
->ac
.builder
, offset
[chan
],
4885 LLVMConstInt(ctx
->ac
.i32
, chan
* 8, false), "");
4887 pack
= LLVMBuildOr(ctx
->ac
.builder
, offset
[0], offset
[1], "");
4888 pack
= LLVMBuildOr(ctx
->ac
.builder
, pack
, offset
[2], "");
4889 address
[count
++] = pack
;
4892 /* pack LOD bias value */
4893 if (instr
->op
== nir_texop_txb
&& bias
) {
4894 address
[count
++] = bias
;
4897 /* Pack depth comparison value */
4898 if (instr
->is_shadow
&& comparator
) {
4899 LLVMValueRef z
= ac_to_float(&ctx
->ac
,
4900 ac_llvm_extract_elem(&ctx
->ac
, comparator
, 0));
4902 /* TC-compatible HTILE on radeonsi promotes Z16 and Z24 to Z32_FLOAT,
4903 * so the depth comparison value isn't clamped for Z16 and
4904 * Z24 anymore. Do it manually here.
4906 * It's unnecessary if the original texture format was
4907 * Z32_FLOAT, but we don't know that here.
4909 if (ctx
->ac
.chip_class
== VI
&& ctx
->abi
->clamp_shadow_reference
)
4910 z
= ac_build_clamp(&ctx
->ac
, z
);
4912 address
[count
++] = z
;
4915 /* pack derivatives */
4917 int num_src_deriv_channels
, num_dest_deriv_channels
;
4918 switch (instr
->sampler_dim
) {
4919 case GLSL_SAMPLER_DIM_3D
:
4920 case GLSL_SAMPLER_DIM_CUBE
:
4922 num_src_deriv_channels
= 3;
4923 num_dest_deriv_channels
= 3;
4925 case GLSL_SAMPLER_DIM_2D
:
4927 num_src_deriv_channels
= 2;
4928 num_dest_deriv_channels
= 2;
4931 case GLSL_SAMPLER_DIM_1D
:
4932 num_src_deriv_channels
= 1;
4933 if (ctx
->ac
.chip_class
>= GFX9
) {
4934 num_dest_deriv_channels
= 2;
4937 num_dest_deriv_channels
= 1;
4943 for (unsigned i
= 0; i
< num_src_deriv_channels
; i
++) {
4944 derivs
[i
] = ac_to_float(&ctx
->ac
, ac_llvm_extract_elem(&ctx
->ac
, ddx
, i
));
4945 derivs
[num_dest_deriv_channels
+ i
] = ac_to_float(&ctx
->ac
, ac_llvm_extract_elem(&ctx
->ac
, ddy
, i
));
4947 for (unsigned i
= num_src_deriv_channels
; i
< num_dest_deriv_channels
; i
++) {
4948 derivs
[i
] = ctx
->ac
.f32_0
;
4949 derivs
[num_dest_deriv_channels
+ i
] = ctx
->ac
.f32_0
;
4953 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
&& coord
) {
4954 for (chan
= 0; chan
< instr
->coord_components
; chan
++)
4955 coords
[chan
] = ac_to_float(&ctx
->ac
, coords
[chan
]);
4956 if (instr
->coord_components
== 3)
4957 coords
[3] = LLVMGetUndef(ctx
->ac
.f32
);
4958 ac_prepare_cube_coords(&ctx
->ac
,
4959 instr
->op
== nir_texop_txd
, instr
->is_array
,
4960 instr
->op
== nir_texop_lod
, coords
, derivs
);
4966 for (unsigned i
= 0; i
< num_deriv_comp
* 2; i
++)
4967 address
[count
++] = derivs
[i
];
4970 /* Pack texture coordinates */
4972 address
[count
++] = coords
[0];
4973 if (instr
->coord_components
> 1) {
4974 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_1D
&& instr
->is_array
&& instr
->op
!= nir_texop_txf
) {
4975 coords
[1] = apply_round_slice(&ctx
->ac
, coords
[1]);
4977 address
[count
++] = coords
[1];
4979 if (instr
->coord_components
> 2) {
4980 /* This seems like a bit of a hack - but it passes Vulkan CTS with it */
4981 if (instr
->sampler_dim
!= GLSL_SAMPLER_DIM_3D
&&
4982 instr
->sampler_dim
!= GLSL_SAMPLER_DIM_CUBE
&&
4983 instr
->op
!= nir_texop_txf
) {
4984 coords
[2] = apply_round_slice(&ctx
->ac
, coords
[2]);
4986 address
[count
++] = coords
[2];
4989 if (ctx
->ac
.chip_class
>= GFX9
) {
4990 LLVMValueRef filler
;
4991 if (instr
->op
== nir_texop_txf
)
4992 filler
= ctx
->ac
.i32_0
;
4994 filler
= LLVMConstReal(ctx
->ac
.f32
, 0.5);
4996 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_1D
) {
4997 /* No nir_texop_lod, because it does not take a slice
4998 * even with array textures. */
4999 if (instr
->is_array
&& instr
->op
!= nir_texop_lod
) {
5000 address
[count
] = address
[count
- 1];
5001 address
[count
- 1] = filler
;
5004 address
[count
++] = filler
;
5010 if (lod
&& ((instr
->op
== nir_texop_txl
&& !lod_is_zero
) ||
5011 instr
->op
== nir_texop_txf
)) {
5012 address
[count
++] = lod
;
5013 } else if (instr
->op
== nir_texop_txf_ms
&& sample_index
) {
5014 address
[count
++] = sample_index
;
5015 } else if(instr
->op
== nir_texop_txs
) {
5018 address
[count
++] = lod
;
5020 address
[count
++] = ctx
->ac
.i32_0
;
5023 for (chan
= 0; chan
< count
; chan
++) {
5024 address
[chan
] = LLVMBuildBitCast(ctx
->ac
.builder
,
5025 address
[chan
], ctx
->ac
.i32
, "");
5028 if (instr
->op
== nir_texop_samples_identical
) {
5029 LLVMValueRef txf_address
[4];
5030 struct ac_image_args txf_args
= { 0 };
5031 unsigned txf_count
= count
;
5032 memcpy(txf_address
, address
, sizeof(txf_address
));
5034 if (!instr
->is_array
)
5035 txf_address
[2] = ctx
->ac
.i32_0
;
5036 txf_address
[3] = ctx
->ac
.i32_0
;
5038 set_tex_fetch_args(&ctx
->ac
, &txf_args
, instr
, nir_texop_txf
,
5040 txf_address
, txf_count
, 0xf);
5042 result
= build_tex_intrinsic(ctx
, instr
, false, &txf_args
);
5044 result
= LLVMBuildExtractElement(ctx
->ac
.builder
, result
, ctx
->ac
.i32_0
, "");
5045 result
= emit_int_cmp(&ctx
->ac
, LLVMIntEQ
, result
, ctx
->ac
.i32_0
);
5049 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_MS
&&
5050 instr
->op
!= nir_texop_txs
) {
5051 unsigned sample_chan
= instr
->is_array
? 3 : 2;
5052 address
[sample_chan
] = adjust_sample_index_using_fmask(&ctx
->ac
,
5055 instr
->is_array
? address
[2] : NULL
,
5056 address
[sample_chan
],
5060 if (offsets
&& instr
->op
== nir_texop_txf
) {
5061 nir_const_value
*const_offset
=
5062 nir_src_as_const_value(instr
->src
[const_src
].src
);
5063 int num_offsets
= instr
->src
[const_src
].src
.ssa
->num_components
;
5064 assert(const_offset
);
5065 num_offsets
= MIN2(num_offsets
, instr
->coord_components
);
5066 if (num_offsets
> 2)
5067 address
[2] = LLVMBuildAdd(ctx
->ac
.builder
,
5068 address
[2], LLVMConstInt(ctx
->ac
.i32
, const_offset
->i32
[2], false), "");
5069 if (num_offsets
> 1)
5070 address
[1] = LLVMBuildAdd(ctx
->ac
.builder
,
5071 address
[1], LLVMConstInt(ctx
->ac
.i32
, const_offset
->i32
[1], false), "");
5072 address
[0] = LLVMBuildAdd(ctx
->ac
.builder
,
5073 address
[0], LLVMConstInt(ctx
->ac
.i32
, const_offset
->i32
[0], false), "");
5077 /* TODO TG4 support */
5078 if (instr
->op
== nir_texop_tg4
) {
5079 if (instr
->is_shadow
)
5082 dmask
= 1 << instr
->component
;
5084 set_tex_fetch_args(&ctx
->ac
, &args
, instr
, instr
->op
,
5085 res_ptr
, samp_ptr
, address
, count
, dmask
);
5087 result
= build_tex_intrinsic(ctx
, instr
, lod_is_zero
, &args
);
5089 if (instr
->op
== nir_texop_query_levels
)
5090 result
= LLVMBuildExtractElement(ctx
->ac
.builder
, result
, LLVMConstInt(ctx
->ac
.i32
, 3, false), "");
5091 else if (instr
->is_shadow
&& instr
->is_new_style_shadow
&&
5092 instr
->op
!= nir_texop_txs
&& instr
->op
!= nir_texop_lod
&&
5093 instr
->op
!= nir_texop_tg4
)
5094 result
= LLVMBuildExtractElement(ctx
->ac
.builder
, result
, ctx
->ac
.i32_0
, "");
5095 else if (instr
->op
== nir_texop_txs
&&
5096 instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
&&
5098 LLVMValueRef two
= LLVMConstInt(ctx
->ac
.i32
, 2, false);
5099 LLVMValueRef six
= LLVMConstInt(ctx
->ac
.i32
, 6, false);
5100 LLVMValueRef z
= LLVMBuildExtractElement(ctx
->ac
.builder
, result
, two
, "");
5101 z
= LLVMBuildSDiv(ctx
->ac
.builder
, z
, six
, "");
5102 result
= LLVMBuildInsertElement(ctx
->ac
.builder
, result
, z
, two
, "");
5103 } else if (ctx
->ac
.chip_class
>= GFX9
&&
5104 instr
->op
== nir_texop_txs
&&
5105 instr
->sampler_dim
== GLSL_SAMPLER_DIM_1D
&&
5107 LLVMValueRef two
= LLVMConstInt(ctx
->ac
.i32
, 2, false);
5108 LLVMValueRef layers
= LLVMBuildExtractElement(ctx
->ac
.builder
, result
, two
, "");
5109 result
= LLVMBuildInsertElement(ctx
->ac
.builder
, result
, layers
,
5111 } else if (instr
->dest
.ssa
.num_components
!= 4)
5112 result
= trim_vector(&ctx
->ac
, result
, instr
->dest
.ssa
.num_components
);
5116 assert(instr
->dest
.is_ssa
);
5117 result
= ac_to_integer(&ctx
->ac
, result
);
5118 _mesa_hash_table_insert(ctx
->defs
, &instr
->dest
.ssa
, result
);
5123 static void visit_phi(struct ac_nir_context
*ctx
, nir_phi_instr
*instr
)
5125 LLVMTypeRef type
= get_def_type(ctx
, &instr
->dest
.ssa
);
5126 LLVMValueRef result
= LLVMBuildPhi(ctx
->ac
.builder
, type
, "");
5128 _mesa_hash_table_insert(ctx
->defs
, &instr
->dest
.ssa
, result
);
5129 _mesa_hash_table_insert(ctx
->phis
, instr
, result
);
5132 static void visit_post_phi(struct ac_nir_context
*ctx
,
5133 nir_phi_instr
*instr
,
5134 LLVMValueRef llvm_phi
)
5136 nir_foreach_phi_src(src
, instr
) {
5137 LLVMBasicBlockRef block
= get_block(ctx
, src
->pred
);
5138 LLVMValueRef llvm_src
= get_src(ctx
, src
->src
);
5140 LLVMAddIncoming(llvm_phi
, &llvm_src
, &block
, 1);
5144 static void phi_post_pass(struct ac_nir_context
*ctx
)
5146 struct hash_entry
*entry
;
5147 hash_table_foreach(ctx
->phis
, entry
) {
5148 visit_post_phi(ctx
, (nir_phi_instr
*)entry
->key
,
5149 (LLVMValueRef
)entry
->data
);
5154 static void visit_ssa_undef(struct ac_nir_context
*ctx
,
5155 const nir_ssa_undef_instr
*instr
)
5157 unsigned num_components
= instr
->def
.num_components
;
5158 LLVMTypeRef type
= LLVMIntTypeInContext(ctx
->ac
.context
, instr
->def
.bit_size
);
5161 if (num_components
== 1)
5162 undef
= LLVMGetUndef(type
);
5164 undef
= LLVMGetUndef(LLVMVectorType(type
, num_components
));
5166 _mesa_hash_table_insert(ctx
->defs
, &instr
->def
, undef
);
5169 static void visit_jump(struct ac_nir_context
*ctx
,
5170 const nir_jump_instr
*instr
)
5172 switch (instr
->type
) {
5173 case nir_jump_break
:
5174 LLVMBuildBr(ctx
->ac
.builder
, ctx
->break_block
);
5175 LLVMClearInsertionPosition(ctx
->ac
.builder
);
5177 case nir_jump_continue
:
5178 LLVMBuildBr(ctx
->ac
.builder
, ctx
->continue_block
);
5179 LLVMClearInsertionPosition(ctx
->ac
.builder
);
5182 fprintf(stderr
, "Unknown NIR jump instr: ");
5183 nir_print_instr(&instr
->instr
, stderr
);
5184 fprintf(stderr
, "\n");
5189 static void visit_cf_list(struct ac_nir_context
*ctx
,
5190 struct exec_list
*list
);
5192 static void visit_block(struct ac_nir_context
*ctx
, nir_block
*block
)
5194 LLVMBasicBlockRef llvm_block
= LLVMGetInsertBlock(ctx
->ac
.builder
);
5195 nir_foreach_instr(instr
, block
)
5197 switch (instr
->type
) {
5198 case nir_instr_type_alu
:
5199 visit_alu(ctx
, nir_instr_as_alu(instr
));
5201 case nir_instr_type_load_const
:
5202 visit_load_const(ctx
, nir_instr_as_load_const(instr
));
5204 case nir_instr_type_intrinsic
:
5205 visit_intrinsic(ctx
, nir_instr_as_intrinsic(instr
));
5207 case nir_instr_type_tex
:
5208 visit_tex(ctx
, nir_instr_as_tex(instr
));
5210 case nir_instr_type_phi
:
5211 visit_phi(ctx
, nir_instr_as_phi(instr
));
5213 case nir_instr_type_ssa_undef
:
5214 visit_ssa_undef(ctx
, nir_instr_as_ssa_undef(instr
));
5216 case nir_instr_type_jump
:
5217 visit_jump(ctx
, nir_instr_as_jump(instr
));
5220 fprintf(stderr
, "Unknown NIR instr type: ");
5221 nir_print_instr(instr
, stderr
);
5222 fprintf(stderr
, "\n");
5227 _mesa_hash_table_insert(ctx
->defs
, block
, llvm_block
);
5230 static void visit_if(struct ac_nir_context
*ctx
, nir_if
*if_stmt
)
5232 LLVMValueRef value
= get_src(ctx
, if_stmt
->condition
);
5234 LLVMValueRef fn
= LLVMGetBasicBlockParent(LLVMGetInsertBlock(ctx
->ac
.builder
));
5235 LLVMBasicBlockRef merge_block
=
5236 LLVMAppendBasicBlockInContext(ctx
->ac
.context
, fn
, "");
5237 LLVMBasicBlockRef if_block
=
5238 LLVMAppendBasicBlockInContext(ctx
->ac
.context
, fn
, "");
5239 LLVMBasicBlockRef else_block
= merge_block
;
5240 if (!exec_list_is_empty(&if_stmt
->else_list
))
5241 else_block
= LLVMAppendBasicBlockInContext(
5242 ctx
->ac
.context
, fn
, "");
5244 LLVMValueRef cond
= LLVMBuildICmp(ctx
->ac
.builder
, LLVMIntNE
, value
,
5246 LLVMBuildCondBr(ctx
->ac
.builder
, cond
, if_block
, else_block
);
5248 LLVMPositionBuilderAtEnd(ctx
->ac
.builder
, if_block
);
5249 visit_cf_list(ctx
, &if_stmt
->then_list
);
5250 if (LLVMGetInsertBlock(ctx
->ac
.builder
))
5251 LLVMBuildBr(ctx
->ac
.builder
, merge_block
);
5253 if (!exec_list_is_empty(&if_stmt
->else_list
)) {
5254 LLVMPositionBuilderAtEnd(ctx
->ac
.builder
, else_block
);
5255 visit_cf_list(ctx
, &if_stmt
->else_list
);
5256 if (LLVMGetInsertBlock(ctx
->ac
.builder
))
5257 LLVMBuildBr(ctx
->ac
.builder
, merge_block
);
5260 LLVMPositionBuilderAtEnd(ctx
->ac
.builder
, merge_block
);
5263 static void visit_loop(struct ac_nir_context
*ctx
, nir_loop
*loop
)
5265 LLVMValueRef fn
= LLVMGetBasicBlockParent(LLVMGetInsertBlock(ctx
->ac
.builder
));
5266 LLVMBasicBlockRef continue_parent
= ctx
->continue_block
;
5267 LLVMBasicBlockRef break_parent
= ctx
->break_block
;
5269 ctx
->continue_block
=
5270 LLVMAppendBasicBlockInContext(ctx
->ac
.context
, fn
, "");
5272 LLVMAppendBasicBlockInContext(ctx
->ac
.context
, fn
, "");
5274 LLVMBuildBr(ctx
->ac
.builder
, ctx
->continue_block
);
5275 LLVMPositionBuilderAtEnd(ctx
->ac
.builder
, ctx
->continue_block
);
5276 visit_cf_list(ctx
, &loop
->body
);
5278 if (LLVMGetInsertBlock(ctx
->ac
.builder
))
5279 LLVMBuildBr(ctx
->ac
.builder
, ctx
->continue_block
);
5280 LLVMPositionBuilderAtEnd(ctx
->ac
.builder
, ctx
->break_block
);
5282 ctx
->continue_block
= continue_parent
;
5283 ctx
->break_block
= break_parent
;
5286 static void visit_cf_list(struct ac_nir_context
*ctx
,
5287 struct exec_list
*list
)
5289 foreach_list_typed(nir_cf_node
, node
, node
, list
)
5291 switch (node
->type
) {
5292 case nir_cf_node_block
:
5293 visit_block(ctx
, nir_cf_node_as_block(node
));
5296 case nir_cf_node_if
:
5297 visit_if(ctx
, nir_cf_node_as_if(node
));
5300 case nir_cf_node_loop
:
5301 visit_loop(ctx
, nir_cf_node_as_loop(node
));
5311 handle_vs_input_decl(struct nir_to_llvm_context
*ctx
,
5312 struct nir_variable
*variable
)
5314 LLVMValueRef t_list_ptr
= ctx
->vertex_buffers
;
5315 LLVMValueRef t_offset
;
5316 LLVMValueRef t_list
;
5318 LLVMValueRef buffer_index
;
5319 int index
= variable
->data
.location
- VERT_ATTRIB_GENERIC0
;
5320 int idx
= variable
->data
.location
;
5321 unsigned attrib_count
= glsl_count_attribute_slots(variable
->type
, true);
5323 variable
->data
.driver_location
= idx
* 4;
5325 for (unsigned i
= 0; i
< attrib_count
; ++i
, ++idx
) {
5326 if (ctx
->options
->key
.vs
.instance_rate_inputs
& (1u << (index
+ i
))) {
5327 buffer_index
= LLVMBuildAdd(ctx
->builder
, ctx
->abi
.instance_id
,
5328 ctx
->abi
.start_instance
, "");
5329 if (ctx
->options
->key
.vs
.as_ls
) {
5330 ctx
->shader_info
->vs
.vgpr_comp_cnt
=
5331 MAX2(2, ctx
->shader_info
->vs
.vgpr_comp_cnt
);
5333 ctx
->shader_info
->vs
.vgpr_comp_cnt
=
5334 MAX2(1, ctx
->shader_info
->vs
.vgpr_comp_cnt
);
5337 buffer_index
= LLVMBuildAdd(ctx
->builder
, ctx
->abi
.vertex_id
,
5338 ctx
->abi
.base_vertex
, "");
5339 t_offset
= LLVMConstInt(ctx
->ac
.i32
, index
+ i
, false);
5341 t_list
= ac_build_load_to_sgpr(&ctx
->ac
, t_list_ptr
, t_offset
);
5343 input
= ac_build_buffer_load_format(&ctx
->ac
, t_list
,
5348 for (unsigned chan
= 0; chan
< 4; chan
++) {
5349 LLVMValueRef llvm_chan
= LLVMConstInt(ctx
->ac
.i32
, chan
, false);
5350 ctx
->inputs
[radeon_llvm_reg_index_soa(idx
, chan
)] =
5351 ac_to_integer(&ctx
->ac
, LLVMBuildExtractElement(ctx
->builder
,
5352 input
, llvm_chan
, ""));
5357 static void interp_fs_input(struct nir_to_llvm_context
*ctx
,
5359 LLVMValueRef interp_param
,
5360 LLVMValueRef prim_mask
,
5361 LLVMValueRef result
[4])
5363 LLVMValueRef attr_number
;
5366 bool interp
= interp_param
!= NULL
;
5368 attr_number
= LLVMConstInt(ctx
->ac
.i32
, attr
, false);
5370 /* fs.constant returns the param from the middle vertex, so it's not
5371 * really useful for flat shading. It's meant to be used for custom
5372 * interpolation (but the intrinsic can't fetch from the other two
5375 * Luckily, it doesn't matter, because we rely on the FLAT_SHADE state
5376 * to do the right thing. The only reason we use fs.constant is that
5377 * fs.interp cannot be used on integers, because they can be equal
5381 interp_param
= LLVMBuildBitCast(ctx
->builder
, interp_param
,
5384 i
= LLVMBuildExtractElement(ctx
->builder
, interp_param
,
5386 j
= LLVMBuildExtractElement(ctx
->builder
, interp_param
,
5390 for (chan
= 0; chan
< 4; chan
++) {
5391 LLVMValueRef llvm_chan
= LLVMConstInt(ctx
->ac
.i32
, chan
, false);
5394 result
[chan
] = ac_build_fs_interp(&ctx
->ac
,
5399 result
[chan
] = ac_build_fs_interp_mov(&ctx
->ac
,
5400 LLVMConstInt(ctx
->ac
.i32
, 2, false),
5409 handle_fs_input_decl(struct nir_to_llvm_context
*ctx
,
5410 struct nir_variable
*variable
)
5412 int idx
= variable
->data
.location
;
5413 unsigned attrib_count
= glsl_count_attribute_slots(variable
->type
, false);
5414 LLVMValueRef interp
;
5416 variable
->data
.driver_location
= idx
* 4;
5417 ctx
->input_mask
|= ((1ull << attrib_count
) - 1) << variable
->data
.location
;
5419 if (glsl_get_base_type(glsl_without_array(variable
->type
)) == GLSL_TYPE_FLOAT
) {
5420 unsigned interp_type
;
5421 if (variable
->data
.sample
) {
5422 interp_type
= INTERP_SAMPLE
;
5423 ctx
->shader_info
->info
.ps
.force_persample
= true;
5424 } else if (variable
->data
.centroid
)
5425 interp_type
= INTERP_CENTROID
;
5427 interp_type
= INTERP_CENTER
;
5429 interp
= lookup_interp_param(&ctx
->abi
, variable
->data
.interpolation
, interp_type
);
5433 for (unsigned i
= 0; i
< attrib_count
; ++i
)
5434 ctx
->inputs
[radeon_llvm_reg_index_soa(idx
+ i
, 0)] = interp
;
5439 handle_vs_inputs(struct nir_to_llvm_context
*ctx
,
5440 struct nir_shader
*nir
) {
5441 nir_foreach_variable(variable
, &nir
->inputs
)
5442 handle_vs_input_decl(ctx
, variable
);
5446 prepare_interp_optimize(struct nir_to_llvm_context
*ctx
,
5447 struct nir_shader
*nir
)
5449 if (!ctx
->options
->key
.fs
.multisample
)
5452 bool uses_center
= false;
5453 bool uses_centroid
= false;
5454 nir_foreach_variable(variable
, &nir
->inputs
) {
5455 if (glsl_get_base_type(glsl_without_array(variable
->type
)) != GLSL_TYPE_FLOAT
||
5456 variable
->data
.sample
)
5459 if (variable
->data
.centroid
)
5460 uses_centroid
= true;
5465 if (uses_center
&& uses_centroid
) {
5466 LLVMValueRef sel
= LLVMBuildICmp(ctx
->builder
, LLVMIntSLT
, ctx
->abi
.prim_mask
, ctx
->ac
.i32_0
, "");
5467 ctx
->persp_centroid
= LLVMBuildSelect(ctx
->builder
, sel
, ctx
->persp_center
, ctx
->persp_centroid
, "");
5468 ctx
->linear_centroid
= LLVMBuildSelect(ctx
->builder
, sel
, ctx
->linear_center
, ctx
->linear_centroid
, "");
5473 handle_fs_inputs(struct nir_to_llvm_context
*ctx
,
5474 struct nir_shader
*nir
)
5476 prepare_interp_optimize(ctx
, nir
);
5478 nir_foreach_variable(variable
, &nir
->inputs
)
5479 handle_fs_input_decl(ctx
, variable
);
5483 if (ctx
->shader_info
->info
.ps
.uses_input_attachments
||
5484 ctx
->shader_info
->info
.needs_multiview_view_index
)
5485 ctx
->input_mask
|= 1ull << VARYING_SLOT_LAYER
;
5487 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_INPUTS
; ++i
) {
5488 LLVMValueRef interp_param
;
5489 LLVMValueRef
*inputs
= ctx
->inputs
+radeon_llvm_reg_index_soa(i
, 0);
5491 if (!(ctx
->input_mask
& (1ull << i
)))
5494 if (i
>= VARYING_SLOT_VAR0
|| i
== VARYING_SLOT_PNTC
||
5495 i
== VARYING_SLOT_PRIMITIVE_ID
|| i
== VARYING_SLOT_LAYER
) {
5496 interp_param
= *inputs
;
5497 interp_fs_input(ctx
, index
, interp_param
, ctx
->abi
.prim_mask
,
5501 ctx
->shader_info
->fs
.flat_shaded_mask
|= 1u << index
;
5503 } else if (i
== VARYING_SLOT_POS
) {
5504 for(int i
= 0; i
< 3; ++i
)
5505 inputs
[i
] = ctx
->abi
.frag_pos
[i
];
5507 inputs
[3] = ac_build_fdiv(&ctx
->ac
, ctx
->ac
.f32_1
,
5508 ctx
->abi
.frag_pos
[3]);
5511 ctx
->shader_info
->fs
.num_interp
= index
;
5512 if (ctx
->input_mask
& (1 << VARYING_SLOT_PNTC
))
5513 ctx
->shader_info
->fs
.has_pcoord
= true;
5514 if (ctx
->input_mask
& (1 << VARYING_SLOT_PRIMITIVE_ID
))
5515 ctx
->shader_info
->fs
.prim_id_input
= true;
5516 if (ctx
->input_mask
& (1 << VARYING_SLOT_LAYER
))
5517 ctx
->shader_info
->fs
.layer_input
= true;
5518 ctx
->shader_info
->fs
.input_mask
= ctx
->input_mask
>> VARYING_SLOT_VAR0
;
5520 if (ctx
->shader_info
->info
.needs_multiview_view_index
)
5521 ctx
->view_index
= ctx
->inputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_LAYER
, 0)];
5525 ac_build_alloca(struct ac_llvm_context
*ac
,
5529 LLVMBuilderRef builder
= ac
->builder
;
5530 LLVMBasicBlockRef current_block
= LLVMGetInsertBlock(builder
);
5531 LLVMValueRef function
= LLVMGetBasicBlockParent(current_block
);
5532 LLVMBasicBlockRef first_block
= LLVMGetEntryBasicBlock(function
);
5533 LLVMValueRef first_instr
= LLVMGetFirstInstruction(first_block
);
5534 LLVMBuilderRef first_builder
= LLVMCreateBuilderInContext(ac
->context
);
5538 LLVMPositionBuilderBefore(first_builder
, first_instr
);
5540 LLVMPositionBuilderAtEnd(first_builder
, first_block
);
5543 res
= LLVMBuildAlloca(first_builder
, type
, name
);
5544 LLVMBuildStore(builder
, LLVMConstNull(type
), res
);
5546 LLVMDisposeBuilder(first_builder
);
5551 static LLVMValueRef
si_build_alloca_undef(struct ac_llvm_context
*ac
,
5555 LLVMValueRef ptr
= ac_build_alloca(ac
, type
, name
);
5556 LLVMBuildStore(ac
->builder
, LLVMGetUndef(type
), ptr
);
5561 scan_shader_output_decl(struct nir_to_llvm_context
*ctx
,
5562 struct nir_variable
*variable
,
5563 struct nir_shader
*shader
,
5564 gl_shader_stage stage
)
5566 int idx
= variable
->data
.location
+ variable
->data
.index
;
5567 unsigned attrib_count
= glsl_count_attribute_slots(variable
->type
, false);
5568 uint64_t mask_attribs
;
5570 variable
->data
.driver_location
= idx
* 4;
5572 /* tess ctrl has it's own load/store paths for outputs */
5573 if (stage
== MESA_SHADER_TESS_CTRL
)
5576 mask_attribs
= ((1ull << attrib_count
) - 1) << idx
;
5577 if (stage
== MESA_SHADER_VERTEX
||
5578 stage
== MESA_SHADER_TESS_EVAL
||
5579 stage
== MESA_SHADER_GEOMETRY
) {
5580 if (idx
== VARYING_SLOT_CLIP_DIST0
) {
5581 int length
= shader
->info
.clip_distance_array_size
+
5582 shader
->info
.cull_distance_array_size
;
5583 if (stage
== MESA_SHADER_VERTEX
) {
5584 ctx
->shader_info
->vs
.outinfo
.clip_dist_mask
= (1 << shader
->info
.clip_distance_array_size
) - 1;
5585 ctx
->shader_info
->vs
.outinfo
.cull_dist_mask
= (1 << shader
->info
.cull_distance_array_size
) - 1;
5587 if (stage
== MESA_SHADER_TESS_EVAL
) {
5588 ctx
->shader_info
->tes
.outinfo
.clip_dist_mask
= (1 << shader
->info
.clip_distance_array_size
) - 1;
5589 ctx
->shader_info
->tes
.outinfo
.cull_dist_mask
= (1 << shader
->info
.cull_distance_array_size
) - 1;
5596 mask_attribs
= 1ull << idx
;
5600 ctx
->output_mask
|= mask_attribs
;
5604 handle_shader_output_decl(struct ac_nir_context
*ctx
,
5605 struct nir_shader
*nir
,
5606 struct nir_variable
*variable
)
5608 unsigned output_loc
= variable
->data
.driver_location
/ 4;
5609 unsigned attrib_count
= glsl_count_attribute_slots(variable
->type
, false);
5611 /* tess ctrl has it's own load/store paths for outputs */
5612 if (ctx
->stage
== MESA_SHADER_TESS_CTRL
)
5615 if (ctx
->stage
== MESA_SHADER_VERTEX
||
5616 ctx
->stage
== MESA_SHADER_TESS_EVAL
||
5617 ctx
->stage
== MESA_SHADER_GEOMETRY
) {
5618 int idx
= variable
->data
.location
+ variable
->data
.index
;
5619 if (idx
== VARYING_SLOT_CLIP_DIST0
) {
5620 int length
= nir
->info
.clip_distance_array_size
+
5621 nir
->info
.cull_distance_array_size
;
5630 for (unsigned i
= 0; i
< attrib_count
; ++i
) {
5631 for (unsigned chan
= 0; chan
< 4; chan
++) {
5632 ctx
->outputs
[radeon_llvm_reg_index_soa(output_loc
+ i
, chan
)] =
5633 si_build_alloca_undef(&ctx
->ac
, ctx
->ac
.f32
, "");
5639 glsl_base_to_llvm_type(struct nir_to_llvm_context
*ctx
,
5640 enum glsl_base_type type
)
5644 case GLSL_TYPE_UINT
:
5645 case GLSL_TYPE_BOOL
:
5646 case GLSL_TYPE_SUBROUTINE
:
5648 case GLSL_TYPE_FLOAT
: /* TODO handle mediump */
5650 case GLSL_TYPE_INT64
:
5651 case GLSL_TYPE_UINT64
:
5653 case GLSL_TYPE_DOUBLE
:
5656 unreachable("unknown GLSL type");
5661 glsl_to_llvm_type(struct nir_to_llvm_context
*ctx
,
5662 const struct glsl_type
*type
)
5664 if (glsl_type_is_scalar(type
)) {
5665 return glsl_base_to_llvm_type(ctx
, glsl_get_base_type(type
));
5668 if (glsl_type_is_vector(type
)) {
5669 return LLVMVectorType(
5670 glsl_base_to_llvm_type(ctx
, glsl_get_base_type(type
)),
5671 glsl_get_vector_elements(type
));
5674 if (glsl_type_is_matrix(type
)) {
5675 return LLVMArrayType(
5676 glsl_to_llvm_type(ctx
, glsl_get_column_type(type
)),
5677 glsl_get_matrix_columns(type
));
5680 if (glsl_type_is_array(type
)) {
5681 return LLVMArrayType(
5682 glsl_to_llvm_type(ctx
, glsl_get_array_element(type
)),
5683 glsl_get_length(type
));
5686 assert(glsl_type_is_struct(type
));
5688 LLVMTypeRef member_types
[glsl_get_length(type
)];
5690 for (unsigned i
= 0; i
< glsl_get_length(type
); i
++) {
5692 glsl_to_llvm_type(ctx
,
5693 glsl_get_struct_field(type
, i
));
5696 return LLVMStructTypeInContext(ctx
->context
, member_types
,
5697 glsl_get_length(type
), false);
5701 setup_locals(struct ac_nir_context
*ctx
,
5702 struct nir_function
*func
)
5705 ctx
->num_locals
= 0;
5706 nir_foreach_variable(variable
, &func
->impl
->locals
) {
5707 unsigned attrib_count
= glsl_count_attribute_slots(variable
->type
, false);
5708 variable
->data
.driver_location
= ctx
->num_locals
* 4;
5709 variable
->data
.location_frac
= 0;
5710 ctx
->num_locals
+= attrib_count
;
5712 ctx
->locals
= malloc(4 * ctx
->num_locals
* sizeof(LLVMValueRef
));
5716 for (i
= 0; i
< ctx
->num_locals
; i
++) {
5717 for (j
= 0; j
< 4; j
++) {
5718 ctx
->locals
[i
* 4 + j
] =
5719 si_build_alloca_undef(&ctx
->ac
, ctx
->ac
.f32
, "temp");
5725 setup_shared(struct ac_nir_context
*ctx
,
5726 struct nir_shader
*nir
)
5728 nir_foreach_variable(variable
, &nir
->shared
) {
5729 LLVMValueRef shared
=
5730 LLVMAddGlobalInAddressSpace(
5731 ctx
->ac
.module
, glsl_to_llvm_type(ctx
->nctx
, variable
->type
),
5732 variable
->name
? variable
->name
: "",
5733 AC_LOCAL_ADDR_SPACE
);
5734 _mesa_hash_table_insert(ctx
->vars
, variable
, shared
);
5739 emit_float_saturate(struct ac_llvm_context
*ctx
, LLVMValueRef v
, float lo
, float hi
)
5741 v
= ac_to_float(ctx
, v
);
5742 v
= emit_intrin_2f_param(ctx
, "llvm.maxnum", ctx
->f32
, v
, LLVMConstReal(ctx
->f32
, lo
));
5743 return emit_intrin_2f_param(ctx
, "llvm.minnum", ctx
->f32
, v
, LLVMConstReal(ctx
->f32
, hi
));
5747 static LLVMValueRef
emit_pack_int16(struct nir_to_llvm_context
*ctx
,
5748 LLVMValueRef src0
, LLVMValueRef src1
)
5750 LLVMValueRef const16
= LLVMConstInt(ctx
->ac
.i32
, 16, false);
5751 LLVMValueRef comp
[2];
5753 comp
[0] = LLVMBuildAnd(ctx
->builder
, src0
, LLVMConstInt(ctx
->ac
.i32
, 65535, 0), "");
5754 comp
[1] = LLVMBuildAnd(ctx
->builder
, src1
, LLVMConstInt(ctx
->ac
.i32
, 65535, 0), "");
5755 comp
[1] = LLVMBuildShl(ctx
->builder
, comp
[1], const16
, "");
5756 return LLVMBuildOr(ctx
->builder
, comp
[0], comp
[1], "");
5759 /* Initialize arguments for the shader export intrinsic */
5761 si_llvm_init_export_args(struct nir_to_llvm_context
*ctx
,
5762 LLVMValueRef
*values
,
5764 struct ac_export_args
*args
)
5766 /* Default is 0xf. Adjusted below depending on the format. */
5767 args
->enabled_channels
= 0xf;
5769 /* Specify whether the EXEC mask represents the valid mask */
5770 args
->valid_mask
= 0;
5772 /* Specify whether this is the last export */
5775 /* Specify the target we are exporting */
5776 args
->target
= target
;
5778 args
->compr
= false;
5779 args
->out
[0] = LLVMGetUndef(ctx
->ac
.f32
);
5780 args
->out
[1] = LLVMGetUndef(ctx
->ac
.f32
);
5781 args
->out
[2] = LLVMGetUndef(ctx
->ac
.f32
);
5782 args
->out
[3] = LLVMGetUndef(ctx
->ac
.f32
);
5787 if (ctx
->stage
== MESA_SHADER_FRAGMENT
&& target
>= V_008DFC_SQ_EXP_MRT
) {
5788 LLVMValueRef val
[4];
5789 unsigned index
= target
- V_008DFC_SQ_EXP_MRT
;
5790 unsigned col_format
= (ctx
->options
->key
.fs
.col_format
>> (4 * index
)) & 0xf;
5791 bool is_int8
= (ctx
->options
->key
.fs
.is_int8
>> index
) & 1;
5792 bool is_int10
= (ctx
->options
->key
.fs
.is_int10
>> index
) & 1;
5794 switch(col_format
) {
5795 case V_028714_SPI_SHADER_ZERO
:
5796 args
->enabled_channels
= 0; /* writemask */
5797 args
->target
= V_008DFC_SQ_EXP_NULL
;
5800 case V_028714_SPI_SHADER_32_R
:
5801 args
->enabled_channels
= 1;
5802 args
->out
[0] = values
[0];
5805 case V_028714_SPI_SHADER_32_GR
:
5806 args
->enabled_channels
= 0x3;
5807 args
->out
[0] = values
[0];
5808 args
->out
[1] = values
[1];
5811 case V_028714_SPI_SHADER_32_AR
:
5812 args
->enabled_channels
= 0x9;
5813 args
->out
[0] = values
[0];
5814 args
->out
[3] = values
[3];
5817 case V_028714_SPI_SHADER_FP16_ABGR
:
5820 for (unsigned chan
= 0; chan
< 2; chan
++) {
5821 LLVMValueRef pack_args
[2] = {
5823 values
[2 * chan
+ 1]
5825 LLVMValueRef packed
;
5827 packed
= ac_build_cvt_pkrtz_f16(&ctx
->ac
, pack_args
);
5828 args
->out
[chan
] = packed
;
5832 case V_028714_SPI_SHADER_UNORM16_ABGR
:
5833 for (unsigned chan
= 0; chan
< 4; chan
++) {
5834 val
[chan
] = ac_build_clamp(&ctx
->ac
, values
[chan
]);
5835 val
[chan
] = LLVMBuildFMul(ctx
->builder
, val
[chan
],
5836 LLVMConstReal(ctx
->ac
.f32
, 65535), "");
5837 val
[chan
] = LLVMBuildFAdd(ctx
->builder
, val
[chan
],
5838 LLVMConstReal(ctx
->ac
.f32
, 0.5), "");
5839 val
[chan
] = LLVMBuildFPToUI(ctx
->builder
, val
[chan
],
5844 args
->out
[0] = emit_pack_int16(ctx
, val
[0], val
[1]);
5845 args
->out
[1] = emit_pack_int16(ctx
, val
[2], val
[3]);
5848 case V_028714_SPI_SHADER_SNORM16_ABGR
:
5849 for (unsigned chan
= 0; chan
< 4; chan
++) {
5850 val
[chan
] = emit_float_saturate(&ctx
->ac
, values
[chan
], -1, 1);
5851 val
[chan
] = LLVMBuildFMul(ctx
->builder
, val
[chan
],
5852 LLVMConstReal(ctx
->ac
.f32
, 32767), "");
5854 /* If positive, add 0.5, else add -0.5. */
5855 val
[chan
] = LLVMBuildFAdd(ctx
->builder
, val
[chan
],
5856 LLVMBuildSelect(ctx
->builder
,
5857 LLVMBuildFCmp(ctx
->builder
, LLVMRealOGE
,
5858 val
[chan
], ctx
->ac
.f32_0
, ""),
5859 LLVMConstReal(ctx
->ac
.f32
, 0.5),
5860 LLVMConstReal(ctx
->ac
.f32
, -0.5), ""), "");
5861 val
[chan
] = LLVMBuildFPToSI(ctx
->builder
, val
[chan
], ctx
->ac
.i32
, "");
5865 args
->out
[0] = emit_pack_int16(ctx
, val
[0], val
[1]);
5866 args
->out
[1] = emit_pack_int16(ctx
, val
[2], val
[3]);
5869 case V_028714_SPI_SHADER_UINT16_ABGR
: {
5870 LLVMValueRef max_rgb
= LLVMConstInt(ctx
->ac
.i32
,
5871 is_int8
? 255 : is_int10
? 1023 : 65535, 0);
5872 LLVMValueRef max_alpha
= !is_int10
? max_rgb
: LLVMConstInt(ctx
->ac
.i32
, 3, 0);
5874 for (unsigned chan
= 0; chan
< 4; chan
++) {
5875 val
[chan
] = ac_to_integer(&ctx
->ac
, values
[chan
]);
5876 val
[chan
] = emit_minmax_int(&ctx
->ac
, LLVMIntULT
, val
[chan
], chan
== 3 ? max_alpha
: max_rgb
);
5880 args
->out
[0] = emit_pack_int16(ctx
, val
[0], val
[1]);
5881 args
->out
[1] = emit_pack_int16(ctx
, val
[2], val
[3]);
5885 case V_028714_SPI_SHADER_SINT16_ABGR
: {
5886 LLVMValueRef max_rgb
= LLVMConstInt(ctx
->ac
.i32
,
5887 is_int8
? 127 : is_int10
? 511 : 32767, 0);
5888 LLVMValueRef min_rgb
= LLVMConstInt(ctx
->ac
.i32
,
5889 is_int8
? -128 : is_int10
? -512 : -32768, 0);
5890 LLVMValueRef max_alpha
= !is_int10
? max_rgb
: ctx
->ac
.i32_1
;
5891 LLVMValueRef min_alpha
= !is_int10
? min_rgb
: LLVMConstInt(ctx
->ac
.i32
, -2, 0);
5894 for (unsigned chan
= 0; chan
< 4; chan
++) {
5895 val
[chan
] = ac_to_integer(&ctx
->ac
, values
[chan
]);
5896 val
[chan
] = emit_minmax_int(&ctx
->ac
, LLVMIntSLT
, val
[chan
], chan
== 3 ? max_alpha
: max_rgb
);
5897 val
[chan
] = emit_minmax_int(&ctx
->ac
, LLVMIntSGT
, val
[chan
], chan
== 3 ? min_alpha
: min_rgb
);
5901 args
->out
[0] = emit_pack_int16(ctx
, val
[0], val
[1]);
5902 args
->out
[1] = emit_pack_int16(ctx
, val
[2], val
[3]);
5907 case V_028714_SPI_SHADER_32_ABGR
:
5908 memcpy(&args
->out
[0], values
, sizeof(values
[0]) * 4);
5912 memcpy(&args
->out
[0], values
, sizeof(values
[0]) * 4);
5914 for (unsigned i
= 0; i
< 4; ++i
)
5915 args
->out
[i
] = ac_to_float(&ctx
->ac
, args
->out
[i
]);
5919 handle_vs_outputs_post(struct nir_to_llvm_context
*ctx
,
5920 bool export_prim_id
,
5921 struct ac_vs_output_info
*outinfo
)
5923 uint32_t param_count
= 0;
5925 unsigned pos_idx
, num_pos_exports
= 0;
5926 struct ac_export_args args
, pos_args
[4] = {};
5927 LLVMValueRef psize_value
= NULL
, layer_value
= NULL
, viewport_index_value
= NULL
;
5930 if (ctx
->options
->key
.has_multiview_view_index
) {
5931 LLVMValueRef
* tmp_out
= &ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_LAYER
, 0)];
5933 for(unsigned i
= 0; i
< 4; ++i
)
5934 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_LAYER
, i
)] =
5935 si_build_alloca_undef(&ctx
->ac
, ctx
->ac
.f32
, "");
5938 LLVMBuildStore(ctx
->builder
, ac_to_float(&ctx
->ac
, ctx
->view_index
), *tmp_out
);
5939 ctx
->output_mask
|= 1ull << VARYING_SLOT_LAYER
;
5942 memset(outinfo
->vs_output_param_offset
, AC_EXP_PARAM_UNDEFINED
,
5943 sizeof(outinfo
->vs_output_param_offset
));
5945 if (ctx
->output_mask
& (1ull << VARYING_SLOT_CLIP_DIST0
)) {
5946 LLVMValueRef slots
[8];
5949 if (outinfo
->cull_dist_mask
)
5950 outinfo
->cull_dist_mask
<<= ctx
->num_output_clips
;
5952 i
= VARYING_SLOT_CLIP_DIST0
;
5953 for (j
= 0; j
< ctx
->num_output_clips
+ ctx
->num_output_culls
; j
++)
5954 slots
[j
] = ac_to_float(&ctx
->ac
, LLVMBuildLoad(ctx
->builder
,
5955 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, j
)], ""));
5957 for (i
= ctx
->num_output_clips
+ ctx
->num_output_culls
; i
< 8; i
++)
5958 slots
[i
] = LLVMGetUndef(ctx
->ac
.f32
);
5960 if (ctx
->num_output_clips
+ ctx
->num_output_culls
> 4) {
5961 target
= V_008DFC_SQ_EXP_POS
+ 3;
5962 si_llvm_init_export_args(ctx
, &slots
[4], target
, &args
);
5963 memcpy(&pos_args
[target
- V_008DFC_SQ_EXP_POS
],
5964 &args
, sizeof(args
));
5967 target
= V_008DFC_SQ_EXP_POS
+ 2;
5968 si_llvm_init_export_args(ctx
, &slots
[0], target
, &args
);
5969 memcpy(&pos_args
[target
- V_008DFC_SQ_EXP_POS
],
5970 &args
, sizeof(args
));
5974 LLVMValueRef pos_values
[4] = {ctx
->ac
.f32_0
, ctx
->ac
.f32_0
, ctx
->ac
.f32_0
, ctx
->ac
.f32_1
};
5975 if (ctx
->output_mask
& (1ull << VARYING_SLOT_POS
)) {
5976 for (unsigned j
= 0; j
< 4; j
++)
5977 pos_values
[j
] = LLVMBuildLoad(ctx
->builder
,
5978 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_POS
, j
)], "");
5980 si_llvm_init_export_args(ctx
, pos_values
, V_008DFC_SQ_EXP_POS
, &pos_args
[0]);
5982 if (ctx
->output_mask
& (1ull << VARYING_SLOT_PSIZ
)) {
5983 outinfo
->writes_pointsize
= true;
5984 psize_value
= LLVMBuildLoad(ctx
->builder
,
5985 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_PSIZ
, 0)], "");
5988 if (ctx
->output_mask
& (1ull << VARYING_SLOT_LAYER
)) {
5989 outinfo
->writes_layer
= true;
5990 layer_value
= LLVMBuildLoad(ctx
->builder
,
5991 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_LAYER
, 0)], "");
5994 if (ctx
->output_mask
& (1ull << VARYING_SLOT_VIEWPORT
)) {
5995 outinfo
->writes_viewport_index
= true;
5996 viewport_index_value
= LLVMBuildLoad(ctx
->builder
,
5997 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(VARYING_SLOT_VIEWPORT
, 0)], "");
6000 if (outinfo
->writes_pointsize
||
6001 outinfo
->writes_layer
||
6002 outinfo
->writes_viewport_index
) {
6003 pos_args
[1].enabled_channels
= ((outinfo
->writes_pointsize
== true ? 1 : 0) |
6004 (outinfo
->writes_layer
== true ? 4 : 0));
6005 pos_args
[1].valid_mask
= 0;
6006 pos_args
[1].done
= 0;
6007 pos_args
[1].target
= V_008DFC_SQ_EXP_POS
+ 1;
6008 pos_args
[1].compr
= 0;
6009 pos_args
[1].out
[0] = ctx
->ac
.f32_0
; /* X */
6010 pos_args
[1].out
[1] = ctx
->ac
.f32_0
; /* Y */
6011 pos_args
[1].out
[2] = ctx
->ac
.f32_0
; /* Z */
6012 pos_args
[1].out
[3] = ctx
->ac
.f32_0
; /* W */
6014 if (outinfo
->writes_pointsize
== true)
6015 pos_args
[1].out
[0] = psize_value
;
6016 if (outinfo
->writes_layer
== true)
6017 pos_args
[1].out
[2] = layer_value
;
6018 if (outinfo
->writes_viewport_index
== true) {
6019 if (ctx
->options
->chip_class
>= GFX9
) {
6020 /* GFX9 has the layer in out.z[10:0] and the viewport
6021 * index in out.z[19:16].
6023 LLVMValueRef v
= viewport_index_value
;
6024 v
= ac_to_integer(&ctx
->ac
, v
);
6025 v
= LLVMBuildShl(ctx
->builder
, v
,
6026 LLVMConstInt(ctx
->ac
.i32
, 16, false),
6028 v
= LLVMBuildOr(ctx
->builder
, v
,
6029 ac_to_integer(&ctx
->ac
, pos_args
[1].out
[2]), "");
6031 pos_args
[1].out
[2] = ac_to_float(&ctx
->ac
, v
);
6032 pos_args
[1].enabled_channels
|= 1 << 2;
6034 pos_args
[1].out
[3] = viewport_index_value
;
6035 pos_args
[1].enabled_channels
|= 1 << 3;
6039 for (i
= 0; i
< 4; i
++) {
6040 if (pos_args
[i
].out
[0])
6045 for (i
= 0; i
< 4; i
++) {
6046 if (!pos_args
[i
].out
[0])
6049 /* Specify the target we are exporting */
6050 pos_args
[i
].target
= V_008DFC_SQ_EXP_POS
+ pos_idx
++;
6051 if (pos_idx
== num_pos_exports
)
6052 pos_args
[i
].done
= 1;
6053 ac_build_export(&ctx
->ac
, &pos_args
[i
]);
6056 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
6057 LLVMValueRef values
[4];
6058 if (!(ctx
->output_mask
& (1ull << i
)))
6061 for (unsigned j
= 0; j
< 4; j
++)
6062 values
[j
] = ac_to_float(&ctx
->ac
, LLVMBuildLoad(ctx
->builder
,
6063 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, j
)], ""));
6065 if (i
== VARYING_SLOT_LAYER
) {
6066 target
= V_008DFC_SQ_EXP_PARAM
+ param_count
;
6067 outinfo
->vs_output_param_offset
[VARYING_SLOT_LAYER
] = param_count
;
6069 } else if (i
== VARYING_SLOT_PRIMITIVE_ID
) {
6070 target
= V_008DFC_SQ_EXP_PARAM
+ param_count
;
6071 outinfo
->vs_output_param_offset
[VARYING_SLOT_PRIMITIVE_ID
] = param_count
;
6073 } else if (i
>= VARYING_SLOT_VAR0
) {
6074 outinfo
->export_mask
|= 1u << (i
- VARYING_SLOT_VAR0
);
6075 target
= V_008DFC_SQ_EXP_PARAM
+ param_count
;
6076 outinfo
->vs_output_param_offset
[i
] = param_count
;
6081 si_llvm_init_export_args(ctx
, values
, target
, &args
);
6083 if (target
>= V_008DFC_SQ_EXP_POS
&&
6084 target
<= (V_008DFC_SQ_EXP_POS
+ 3)) {
6085 memcpy(&pos_args
[target
- V_008DFC_SQ_EXP_POS
],
6086 &args
, sizeof(args
));
6088 ac_build_export(&ctx
->ac
, &args
);
6092 if (export_prim_id
) {
6093 LLVMValueRef values
[4];
6094 target
= V_008DFC_SQ_EXP_PARAM
+ param_count
;
6095 outinfo
->vs_output_param_offset
[VARYING_SLOT_PRIMITIVE_ID
] = param_count
;
6098 values
[0] = ctx
->vs_prim_id
;
6099 ctx
->shader_info
->vs
.vgpr_comp_cnt
= MAX2(2,
6100 ctx
->shader_info
->vs
.vgpr_comp_cnt
);
6101 for (unsigned j
= 1; j
< 4; j
++)
6102 values
[j
] = ctx
->ac
.f32_0
;
6103 si_llvm_init_export_args(ctx
, values
, target
, &args
);
6104 ac_build_export(&ctx
->ac
, &args
);
6105 outinfo
->export_prim_id
= true;
6108 outinfo
->pos_exports
= num_pos_exports
;
6109 outinfo
->param_exports
= param_count
;
6113 handle_es_outputs_post(struct nir_to_llvm_context
*ctx
,
6114 struct ac_es_output_info
*outinfo
)
6117 uint64_t max_output_written
= 0;
6118 LLVMValueRef lds_base
= NULL
;
6120 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
6124 if (!(ctx
->output_mask
& (1ull << i
)))
6127 if (i
== VARYING_SLOT_CLIP_DIST0
)
6128 length
= ctx
->num_output_clips
+ ctx
->num_output_culls
;
6130 param_index
= shader_io_get_unique_index(i
);
6132 max_output_written
= MAX2(param_index
+ (length
> 4), max_output_written
);
6135 outinfo
->esgs_itemsize
= (max_output_written
+ 1) * 16;
6137 if (ctx
->ac
.chip_class
>= GFX9
) {
6138 unsigned itemsize_dw
= outinfo
->esgs_itemsize
/ 4;
6139 LLVMValueRef vertex_idx
= ac_get_thread_id(&ctx
->ac
);
6140 LLVMValueRef wave_idx
= ac_build_bfe(&ctx
->ac
, ctx
->merged_wave_info
,
6141 LLVMConstInt(ctx
->ac
.i32
, 24, false),
6142 LLVMConstInt(ctx
->ac
.i32
, 4, false), false);
6143 vertex_idx
= LLVMBuildOr(ctx
->ac
.builder
, vertex_idx
,
6144 LLVMBuildMul(ctx
->ac
.builder
, wave_idx
,
6145 LLVMConstInt(ctx
->ac
.i32
, 64, false), ""), "");
6146 lds_base
= LLVMBuildMul(ctx
->ac
.builder
, vertex_idx
,
6147 LLVMConstInt(ctx
->ac
.i32
, itemsize_dw
, 0), "");
6150 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
6151 LLVMValueRef dw_addr
;
6152 LLVMValueRef
*out_ptr
= &ctx
->nir
->outputs
[i
* 4];
6156 if (!(ctx
->output_mask
& (1ull << i
)))
6159 if (i
== VARYING_SLOT_CLIP_DIST0
)
6160 length
= ctx
->num_output_clips
+ ctx
->num_output_culls
;
6162 param_index
= shader_io_get_unique_index(i
);
6165 dw_addr
= LLVMBuildAdd(ctx
->builder
, lds_base
,
6166 LLVMConstInt(ctx
->ac
.i32
, param_index
* 4, false),
6169 for (j
= 0; j
< length
; j
++) {
6170 LLVMValueRef out_val
= LLVMBuildLoad(ctx
->builder
, out_ptr
[j
], "");
6171 out_val
= LLVMBuildBitCast(ctx
->builder
, out_val
, ctx
->ac
.i32
, "");
6173 if (ctx
->ac
.chip_class
>= GFX9
) {
6174 ac_lds_store(&ctx
->ac
, dw_addr
,
6175 LLVMBuildLoad(ctx
->builder
, out_ptr
[j
], ""));
6176 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
, ctx
->ac
.i32_1
, "");
6178 ac_build_buffer_store_dword(&ctx
->ac
,
6181 NULL
, ctx
->es2gs_offset
,
6182 (4 * param_index
+ j
) * 4,
6190 handle_ls_outputs_post(struct nir_to_llvm_context
*ctx
)
6192 LLVMValueRef vertex_id
= ctx
->rel_auto_id
;
6193 LLVMValueRef vertex_dw_stride
= unpack_param(&ctx
->ac
, ctx
->ls_out_layout
, 13, 8);
6194 LLVMValueRef base_dw_addr
= LLVMBuildMul(ctx
->builder
, vertex_id
,
6195 vertex_dw_stride
, "");
6197 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
6198 LLVMValueRef
*out_ptr
= &ctx
->nir
->outputs
[i
* 4];
6201 if (!(ctx
->output_mask
& (1ull << i
)))
6204 if (i
== VARYING_SLOT_CLIP_DIST0
)
6205 length
= ctx
->num_output_clips
+ ctx
->num_output_culls
;
6206 int param
= shader_io_get_unique_index(i
);
6207 mark_tess_output(ctx
, false, param
);
6209 mark_tess_output(ctx
, false, param
+ 1);
6210 LLVMValueRef dw_addr
= LLVMBuildAdd(ctx
->builder
, base_dw_addr
,
6211 LLVMConstInt(ctx
->ac
.i32
, param
* 4, false),
6213 for (unsigned j
= 0; j
< length
; j
++) {
6214 ac_lds_store(&ctx
->ac
, dw_addr
,
6215 LLVMBuildLoad(ctx
->builder
, out_ptr
[j
], ""));
6216 dw_addr
= LLVMBuildAdd(ctx
->builder
, dw_addr
, ctx
->ac
.i32_1
, "");
6221 struct ac_build_if_state
6223 struct nir_to_llvm_context
*ctx
;
6224 LLVMValueRef condition
;
6225 LLVMBasicBlockRef entry_block
;
6226 LLVMBasicBlockRef true_block
;
6227 LLVMBasicBlockRef false_block
;
6228 LLVMBasicBlockRef merge_block
;
6231 static LLVMBasicBlockRef
6232 ac_build_insert_new_block(struct nir_to_llvm_context
*ctx
, const char *name
)
6234 LLVMBasicBlockRef current_block
;
6235 LLVMBasicBlockRef next_block
;
6236 LLVMBasicBlockRef new_block
;
6238 /* get current basic block */
6239 current_block
= LLVMGetInsertBlock(ctx
->builder
);
6241 /* chqeck if there's another block after this one */
6242 next_block
= LLVMGetNextBasicBlock(current_block
);
6244 /* insert the new block before the next block */
6245 new_block
= LLVMInsertBasicBlockInContext(ctx
->context
, next_block
, name
);
6248 /* append new block after current block */
6249 LLVMValueRef function
= LLVMGetBasicBlockParent(current_block
);
6250 new_block
= LLVMAppendBasicBlockInContext(ctx
->context
, function
, name
);
6256 ac_nir_build_if(struct ac_build_if_state
*ifthen
,
6257 struct nir_to_llvm_context
*ctx
,
6258 LLVMValueRef condition
)
6260 LLVMBasicBlockRef block
= LLVMGetInsertBlock(ctx
->builder
);
6262 memset(ifthen
, 0, sizeof *ifthen
);
6264 ifthen
->condition
= condition
;
6265 ifthen
->entry_block
= block
;
6267 /* create endif/merge basic block for the phi functions */
6268 ifthen
->merge_block
= ac_build_insert_new_block(ctx
, "endif-block");
6270 /* create/insert true_block before merge_block */
6271 ifthen
->true_block
=
6272 LLVMInsertBasicBlockInContext(ctx
->context
,
6273 ifthen
->merge_block
,
6276 /* successive code goes into the true block */
6277 LLVMPositionBuilderAtEnd(ctx
->builder
, ifthen
->true_block
);
6281 * End a conditional.
6284 ac_nir_build_endif(struct ac_build_if_state
*ifthen
)
6286 LLVMBuilderRef builder
= ifthen
->ctx
->builder
;
6288 /* Insert branch to the merge block from current block */
6289 LLVMBuildBr(builder
, ifthen
->merge_block
);
6292 * Now patch in the various branch instructions.
6295 /* Insert the conditional branch instruction at the end of entry_block */
6296 LLVMPositionBuilderAtEnd(builder
, ifthen
->entry_block
);
6297 if (ifthen
->false_block
) {
6298 /* we have an else clause */
6299 LLVMBuildCondBr(builder
, ifthen
->condition
,
6300 ifthen
->true_block
, ifthen
->false_block
);
6303 /* no else clause */
6304 LLVMBuildCondBr(builder
, ifthen
->condition
,
6305 ifthen
->true_block
, ifthen
->merge_block
);
6308 /* Resume building code at end of the ifthen->merge_block */
6309 LLVMPositionBuilderAtEnd(builder
, ifthen
->merge_block
);
6313 write_tess_factors(struct nir_to_llvm_context
*ctx
)
6315 unsigned stride
, outer_comps
, inner_comps
;
6316 struct ac_build_if_state if_ctx
, inner_if_ctx
;
6317 LLVMValueRef invocation_id
= unpack_param(&ctx
->ac
, ctx
->abi
.tcs_rel_ids
, 8, 5);
6318 LLVMValueRef rel_patch_id
= unpack_param(&ctx
->ac
, ctx
->abi
.tcs_rel_ids
, 0, 8);
6319 unsigned tess_inner_index
, tess_outer_index
;
6320 LLVMValueRef lds_base
, lds_inner
, lds_outer
, byteoffset
, buffer
;
6321 LLVMValueRef out
[6], vec0
, vec1
, tf_base
, inner
[4], outer
[4];
6323 emit_barrier(&ctx
->ac
, ctx
->stage
);
6325 switch (ctx
->options
->key
.tcs
.primitive_mode
) {
6345 ac_nir_build_if(&if_ctx
, ctx
,
6346 LLVMBuildICmp(ctx
->builder
, LLVMIntEQ
,
6347 invocation_id
, ctx
->ac
.i32_0
, ""));
6349 tess_inner_index
= shader_io_get_unique_index(VARYING_SLOT_TESS_LEVEL_INNER
);
6350 tess_outer_index
= shader_io_get_unique_index(VARYING_SLOT_TESS_LEVEL_OUTER
);
6352 mark_tess_output(ctx
, true, tess_inner_index
);
6353 mark_tess_output(ctx
, true, tess_outer_index
);
6354 lds_base
= get_tcs_out_current_patch_data_offset(ctx
);
6355 lds_inner
= LLVMBuildAdd(ctx
->builder
, lds_base
,
6356 LLVMConstInt(ctx
->ac
.i32
, tess_inner_index
* 4, false), "");
6357 lds_outer
= LLVMBuildAdd(ctx
->builder
, lds_base
,
6358 LLVMConstInt(ctx
->ac
.i32
, tess_outer_index
* 4, false), "");
6360 for (i
= 0; i
< 4; i
++) {
6361 inner
[i
] = LLVMGetUndef(ctx
->ac
.i32
);
6362 outer
[i
] = LLVMGetUndef(ctx
->ac
.i32
);
6366 if (ctx
->options
->key
.tcs
.primitive_mode
== GL_ISOLINES
) {
6367 outer
[0] = out
[1] = ac_lds_load(&ctx
->ac
, lds_outer
);
6368 lds_outer
= LLVMBuildAdd(ctx
->builder
, lds_outer
,
6370 outer
[1] = out
[0] = ac_lds_load(&ctx
->ac
, lds_outer
);
6372 for (i
= 0; i
< outer_comps
; i
++) {
6374 ac_lds_load(&ctx
->ac
, lds_outer
);
6375 lds_outer
= LLVMBuildAdd(ctx
->builder
, lds_outer
,
6378 for (i
= 0; i
< inner_comps
; i
++) {
6379 inner
[i
] = out
[outer_comps
+i
] =
6380 ac_lds_load(&ctx
->ac
, lds_inner
);
6381 lds_inner
= LLVMBuildAdd(ctx
->builder
, lds_inner
,
6386 /* Convert the outputs to vectors for stores. */
6387 vec0
= ac_build_gather_values(&ctx
->ac
, out
, MIN2(stride
, 4));
6391 vec1
= ac_build_gather_values(&ctx
->ac
, out
+ 4, stride
- 4);
6394 buffer
= ctx
->hs_ring_tess_factor
;
6395 tf_base
= ctx
->tess_factor_offset
;
6396 byteoffset
= LLVMBuildMul(ctx
->builder
, rel_patch_id
,
6397 LLVMConstInt(ctx
->ac
.i32
, 4 * stride
, false), "");
6398 unsigned tf_offset
= 0;
6400 if (ctx
->options
->chip_class
<= VI
) {
6401 ac_nir_build_if(&inner_if_ctx
, ctx
,
6402 LLVMBuildICmp(ctx
->builder
, LLVMIntEQ
,
6403 rel_patch_id
, ctx
->ac
.i32_0
, ""));
6405 /* Store the dynamic HS control word. */
6406 ac_build_buffer_store_dword(&ctx
->ac
, buffer
,
6407 LLVMConstInt(ctx
->ac
.i32
, 0x80000000, false),
6408 1, ctx
->ac
.i32_0
, tf_base
,
6409 0, 1, 0, true, false);
6412 ac_nir_build_endif(&inner_if_ctx
);
6415 /* Store the tessellation factors. */
6416 ac_build_buffer_store_dword(&ctx
->ac
, buffer
, vec0
,
6417 MIN2(stride
, 4), byteoffset
, tf_base
,
6418 tf_offset
, 1, 0, true, false);
6420 ac_build_buffer_store_dword(&ctx
->ac
, buffer
, vec1
,
6421 stride
- 4, byteoffset
, tf_base
,
6422 16 + tf_offset
, 1, 0, true, false);
6424 //store to offchip for TES to read - only if TES reads them
6425 if (ctx
->options
->key
.tcs
.tes_reads_tess_factors
) {
6426 LLVMValueRef inner_vec
, outer_vec
, tf_outer_offset
;
6427 LLVMValueRef tf_inner_offset
;
6428 unsigned param_outer
, param_inner
;
6430 param_outer
= shader_io_get_unique_index(VARYING_SLOT_TESS_LEVEL_OUTER
);
6431 tf_outer_offset
= get_tcs_tes_buffer_address(ctx
, NULL
,
6432 LLVMConstInt(ctx
->ac
.i32
, param_outer
, 0));
6434 outer_vec
= ac_build_gather_values(&ctx
->ac
, outer
,
6435 util_next_power_of_two(outer_comps
));
6437 ac_build_buffer_store_dword(&ctx
->ac
, ctx
->hs_ring_tess_offchip
, outer_vec
,
6438 outer_comps
, tf_outer_offset
,
6439 ctx
->oc_lds
, 0, 1, 0, true, false);
6441 param_inner
= shader_io_get_unique_index(VARYING_SLOT_TESS_LEVEL_INNER
);
6442 tf_inner_offset
= get_tcs_tes_buffer_address(ctx
, NULL
,
6443 LLVMConstInt(ctx
->ac
.i32
, param_inner
, 0));
6445 inner_vec
= inner_comps
== 1 ? inner
[0] :
6446 ac_build_gather_values(&ctx
->ac
, inner
, inner_comps
);
6447 ac_build_buffer_store_dword(&ctx
->ac
, ctx
->hs_ring_tess_offchip
, inner_vec
,
6448 inner_comps
, tf_inner_offset
,
6449 ctx
->oc_lds
, 0, 1, 0, true, false);
6452 ac_nir_build_endif(&if_ctx
);
6456 handle_tcs_outputs_post(struct nir_to_llvm_context
*ctx
)
6458 write_tess_factors(ctx
);
6462 si_export_mrt_color(struct nir_to_llvm_context
*ctx
,
6463 LLVMValueRef
*color
, unsigned param
, bool is_last
,
6464 struct ac_export_args
*args
)
6467 si_llvm_init_export_args(ctx
, color
, param
,
6471 args
->valid_mask
= 1; /* whether the EXEC mask is valid */
6472 args
->done
= 1; /* DONE bit */
6473 } else if (!args
->enabled_channels
)
6474 return false; /* unnecessary NULL export */
6480 radv_export_mrt_z(struct nir_to_llvm_context
*ctx
,
6481 LLVMValueRef depth
, LLVMValueRef stencil
,
6482 LLVMValueRef samplemask
)
6484 struct ac_export_args args
;
6486 ac_export_mrt_z(&ctx
->ac
, depth
, stencil
, samplemask
, &args
);
6488 ac_build_export(&ctx
->ac
, &args
);
6492 handle_fs_outputs_post(struct nir_to_llvm_context
*ctx
)
6495 LLVMValueRef depth
= NULL
, stencil
= NULL
, samplemask
= NULL
;
6496 struct ac_export_args color_args
[8];
6498 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
6499 LLVMValueRef values
[4];
6501 if (!(ctx
->output_mask
& (1ull << i
)))
6504 if (i
== FRAG_RESULT_DEPTH
) {
6505 ctx
->shader_info
->fs
.writes_z
= true;
6506 depth
= ac_to_float(&ctx
->ac
, LLVMBuildLoad(ctx
->builder
,
6507 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, 0)], ""));
6508 } else if (i
== FRAG_RESULT_STENCIL
) {
6509 ctx
->shader_info
->fs
.writes_stencil
= true;
6510 stencil
= ac_to_float(&ctx
->ac
, LLVMBuildLoad(ctx
->builder
,
6511 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, 0)], ""));
6512 } else if (i
== FRAG_RESULT_SAMPLE_MASK
) {
6513 ctx
->shader_info
->fs
.writes_sample_mask
= true;
6514 samplemask
= ac_to_float(&ctx
->ac
, LLVMBuildLoad(ctx
->builder
,
6515 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, 0)], ""));
6518 for (unsigned j
= 0; j
< 4; j
++)
6519 values
[j
] = ac_to_float(&ctx
->ac
, LLVMBuildLoad(ctx
->builder
,
6520 ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, j
)], ""));
6522 if (!ctx
->shader_info
->fs
.writes_z
&& !ctx
->shader_info
->fs
.writes_stencil
&& !ctx
->shader_info
->fs
.writes_sample_mask
)
6523 last
= ctx
->output_mask
<= ((1ull << (i
+ 1)) - 1);
6525 bool ret
= si_export_mrt_color(ctx
, values
, V_008DFC_SQ_EXP_MRT
+ (i
- FRAG_RESULT_DATA0
), last
, &color_args
[index
]);
6531 for (unsigned i
= 0; i
< index
; i
++)
6532 ac_build_export(&ctx
->ac
, &color_args
[i
]);
6533 if (depth
|| stencil
|| samplemask
)
6534 radv_export_mrt_z(ctx
, depth
, stencil
, samplemask
);
6536 si_export_mrt_color(ctx
, NULL
, V_008DFC_SQ_EXP_NULL
, true, &color_args
[0]);
6537 ac_build_export(&ctx
->ac
, &color_args
[0]);
6542 emit_gs_epilogue(struct nir_to_llvm_context
*ctx
)
6544 ac_build_sendmsg(&ctx
->ac
, AC_SENDMSG_GS_OP_NOP
| AC_SENDMSG_GS_DONE
, ctx
->gs_wave_id
);
6548 handle_shader_outputs_post(struct ac_shader_abi
*abi
, unsigned max_outputs
,
6549 LLVMValueRef
*addrs
)
6551 struct nir_to_llvm_context
*ctx
= nir_to_llvm_context_from_abi(abi
);
6553 switch (ctx
->stage
) {
6554 case MESA_SHADER_VERTEX
:
6555 if (ctx
->options
->key
.vs
.as_ls
)
6556 handle_ls_outputs_post(ctx
);
6557 else if (ctx
->options
->key
.vs
.as_es
)
6558 handle_es_outputs_post(ctx
, &ctx
->shader_info
->vs
.es_info
);
6560 handle_vs_outputs_post(ctx
, ctx
->options
->key
.vs
.export_prim_id
,
6561 &ctx
->shader_info
->vs
.outinfo
);
6563 case MESA_SHADER_FRAGMENT
:
6564 handle_fs_outputs_post(ctx
);
6566 case MESA_SHADER_GEOMETRY
:
6567 emit_gs_epilogue(ctx
);
6569 case MESA_SHADER_TESS_CTRL
:
6570 handle_tcs_outputs_post(ctx
);
6572 case MESA_SHADER_TESS_EVAL
:
6573 if (ctx
->options
->key
.tes
.as_es
)
6574 handle_es_outputs_post(ctx
, &ctx
->shader_info
->tes
.es_info
);
6576 handle_vs_outputs_post(ctx
, ctx
->options
->key
.tes
.export_prim_id
,
6577 &ctx
->shader_info
->tes
.outinfo
);
6584 static void ac_llvm_finalize_module(struct nir_to_llvm_context
* ctx
)
6586 LLVMPassManagerRef passmgr
;
6587 /* Create the pass manager */
6588 passmgr
= LLVMCreateFunctionPassManagerForModule(
6591 /* This pass should eliminate all the load and store instructions */
6592 LLVMAddPromoteMemoryToRegisterPass(passmgr
);
6594 /* Add some optimization passes */
6595 LLVMAddScalarReplAggregatesPass(passmgr
);
6596 LLVMAddLICMPass(passmgr
);
6597 LLVMAddAggressiveDCEPass(passmgr
);
6598 LLVMAddCFGSimplificationPass(passmgr
);
6599 LLVMAddInstructionCombiningPass(passmgr
);
6602 LLVMInitializeFunctionPassManager(passmgr
);
6603 LLVMRunFunctionPassManager(passmgr
, ctx
->main_function
);
6604 LLVMFinalizeFunctionPassManager(passmgr
);
6606 LLVMDisposeBuilder(ctx
->builder
);
6607 LLVMDisposePassManager(passmgr
);
6611 ac_nir_eliminate_const_vs_outputs(struct nir_to_llvm_context
*ctx
)
6613 struct ac_vs_output_info
*outinfo
;
6615 switch (ctx
->stage
) {
6616 case MESA_SHADER_FRAGMENT
:
6617 case MESA_SHADER_COMPUTE
:
6618 case MESA_SHADER_TESS_CTRL
:
6619 case MESA_SHADER_GEOMETRY
:
6621 case MESA_SHADER_VERTEX
:
6622 if (ctx
->options
->key
.vs
.as_ls
||
6623 ctx
->options
->key
.vs
.as_es
)
6625 outinfo
= &ctx
->shader_info
->vs
.outinfo
;
6627 case MESA_SHADER_TESS_EVAL
:
6628 if (ctx
->options
->key
.vs
.as_es
)
6630 outinfo
= &ctx
->shader_info
->tes
.outinfo
;
6633 unreachable("Unhandled shader type");
6636 ac_optimize_vs_outputs(&ctx
->ac
,
6638 outinfo
->vs_output_param_offset
,
6640 &outinfo
->param_exports
);
6644 ac_setup_rings(struct nir_to_llvm_context
*ctx
)
6646 if ((ctx
->stage
== MESA_SHADER_VERTEX
&& ctx
->options
->key
.vs
.as_es
) ||
6647 (ctx
->stage
== MESA_SHADER_TESS_EVAL
&& ctx
->options
->key
.tes
.as_es
)) {
6648 ctx
->esgs_ring
= ac_build_load_to_sgpr(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_ESGS_VS
, false));
6651 if (ctx
->is_gs_copy_shader
) {
6652 ctx
->gsvs_ring
= ac_build_load_to_sgpr(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_GSVS_VS
, false));
6654 if (ctx
->stage
== MESA_SHADER_GEOMETRY
) {
6656 ctx
->esgs_ring
= ac_build_load_to_sgpr(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_ESGS_GS
, false));
6657 ctx
->gsvs_ring
= ac_build_load_to_sgpr(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_GSVS_GS
, false));
6659 ctx
->gsvs_ring
= LLVMBuildBitCast(ctx
->builder
, ctx
->gsvs_ring
, ctx
->ac
.v4i32
, "");
6661 ctx
->gsvs_ring
= LLVMBuildInsertElement(ctx
->builder
, ctx
->gsvs_ring
, ctx
->gsvs_num_entries
, LLVMConstInt(ctx
->ac
.i32
, 2, false), "");
6662 tmp
= LLVMBuildExtractElement(ctx
->builder
, ctx
->gsvs_ring
, ctx
->ac
.i32_1
, "");
6663 tmp
= LLVMBuildOr(ctx
->builder
, tmp
, ctx
->gsvs_ring_stride
, "");
6664 ctx
->gsvs_ring
= LLVMBuildInsertElement(ctx
->builder
, ctx
->gsvs_ring
, tmp
, ctx
->ac
.i32_1
, "");
6667 if (ctx
->stage
== MESA_SHADER_TESS_CTRL
||
6668 ctx
->stage
== MESA_SHADER_TESS_EVAL
) {
6669 ctx
->hs_ring_tess_offchip
= ac_build_load_to_sgpr(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_HS_TESS_OFFCHIP
, false));
6670 ctx
->hs_ring_tess_factor
= ac_build_load_to_sgpr(&ctx
->ac
, ctx
->ring_offsets
, LLVMConstInt(ctx
->ac
.i32
, RING_HS_TESS_FACTOR
, false));
6675 ac_nir_get_max_workgroup_size(enum chip_class chip_class
,
6676 const struct nir_shader
*nir
)
6678 switch (nir
->info
.stage
) {
6679 case MESA_SHADER_TESS_CTRL
:
6680 return chip_class
>= CIK
? 128 : 64;
6681 case MESA_SHADER_GEOMETRY
:
6682 return chip_class
>= GFX9
? 128 : 64;
6683 case MESA_SHADER_COMPUTE
:
6689 unsigned max_workgroup_size
= nir
->info
.cs
.local_size
[0] *
6690 nir
->info
.cs
.local_size
[1] *
6691 nir
->info
.cs
.local_size
[2];
6692 return max_workgroup_size
;
6695 /* Fixup the HW not emitting the TCS regs if there are no HS threads. */
6696 static void ac_nir_fixup_ls_hs_input_vgprs(struct nir_to_llvm_context
*ctx
)
6698 LLVMValueRef count
= ac_build_bfe(&ctx
->ac
, ctx
->merged_wave_info
,
6699 LLVMConstInt(ctx
->ac
.i32
, 8, false),
6700 LLVMConstInt(ctx
->ac
.i32
, 8, false), false);
6701 LLVMValueRef hs_empty
= LLVMBuildICmp(ctx
->ac
.builder
, LLVMIntEQ
, count
,
6703 ctx
->abi
.instance_id
= LLVMBuildSelect(ctx
->ac
.builder
, hs_empty
, ctx
->rel_auto_id
, ctx
->abi
.instance_id
, "");
6704 ctx
->vs_prim_id
= LLVMBuildSelect(ctx
->ac
.builder
, hs_empty
, ctx
->abi
.vertex_id
, ctx
->vs_prim_id
, "");
6705 ctx
->rel_auto_id
= LLVMBuildSelect(ctx
->ac
.builder
, hs_empty
, ctx
->abi
.tcs_rel_ids
, ctx
->rel_auto_id
, "");
6706 ctx
->abi
.vertex_id
= LLVMBuildSelect(ctx
->ac
.builder
, hs_empty
, ctx
->abi
.tcs_patch_id
, ctx
->abi
.vertex_id
, "");
6709 static void prepare_gs_input_vgprs(struct nir_to_llvm_context
*ctx
)
6711 for(int i
= 5; i
>= 0; --i
) {
6712 ctx
->gs_vtx_offset
[i
] = ac_build_bfe(&ctx
->ac
, ctx
->gs_vtx_offset
[i
& ~1],
6713 LLVMConstInt(ctx
->ac
.i32
, (i
& 1) * 16, false),
6714 LLVMConstInt(ctx
->ac
.i32
, 16, false), false);
6717 ctx
->gs_wave_id
= ac_build_bfe(&ctx
->ac
, ctx
->merged_wave_info
,
6718 LLVMConstInt(ctx
->ac
.i32
, 16, false),
6719 LLVMConstInt(ctx
->ac
.i32
, 8, false), false);
6722 void ac_nir_translate(struct ac_llvm_context
*ac
, struct ac_shader_abi
*abi
,
6723 struct nir_shader
*nir
, struct nir_to_llvm_context
*nctx
)
6725 struct ac_nir_context ctx
= {};
6726 struct nir_function
*func
;
6735 ctx
.stage
= nir
->info
.stage
;
6737 ctx
.main_function
= LLVMGetBasicBlockParent(LLVMGetInsertBlock(ctx
.ac
.builder
));
6739 nir_foreach_variable(variable
, &nir
->outputs
)
6740 handle_shader_output_decl(&ctx
, nir
, variable
);
6742 ctx
.defs
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
6743 _mesa_key_pointer_equal
);
6744 ctx
.phis
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
6745 _mesa_key_pointer_equal
);
6746 ctx
.vars
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
6747 _mesa_key_pointer_equal
);
6749 func
= (struct nir_function
*)exec_list_get_head(&nir
->functions
);
6751 setup_locals(&ctx
, func
);
6753 if (nir
->info
.stage
== MESA_SHADER_COMPUTE
)
6754 setup_shared(&ctx
, nir
);
6756 visit_cf_list(&ctx
, &func
->impl
->body
);
6757 phi_post_pass(&ctx
);
6759 ctx
.abi
->emit_outputs(ctx
.abi
, RADEON_LLVM_MAX_OUTPUTS
,
6763 ralloc_free(ctx
.defs
);
6764 ralloc_free(ctx
.phis
);
6765 ralloc_free(ctx
.vars
);
6772 LLVMModuleRef
ac_translate_nir_to_llvm(LLVMTargetMachineRef tm
,
6773 struct nir_shader
*const *shaders
,
6775 struct ac_shader_variant_info
*shader_info
,
6776 const struct ac_nir_compiler_options
*options
)
6778 struct nir_to_llvm_context ctx
= {0};
6780 ctx
.options
= options
;
6781 ctx
.shader_info
= shader_info
;
6782 ctx
.context
= LLVMContextCreate();
6783 ctx
.module
= LLVMModuleCreateWithNameInContext("shader", ctx
.context
);
6785 ac_llvm_context_init(&ctx
.ac
, ctx
.context
, options
->chip_class
,
6787 ctx
.ac
.module
= ctx
.module
;
6788 LLVMSetTarget(ctx
.module
, options
->supports_spill
? "amdgcn-mesa-mesa3d" : "amdgcn--");
6790 LLVMTargetDataRef data_layout
= LLVMCreateTargetDataLayout(tm
);
6791 char *data_layout_str
= LLVMCopyStringRepOfTargetData(data_layout
);
6792 LLVMSetDataLayout(ctx
.module
, data_layout_str
);
6793 LLVMDisposeTargetData(data_layout
);
6794 LLVMDisposeMessage(data_layout_str
);
6796 enum ac_float_mode float_mode
=
6797 options
->unsafe_math
? AC_FLOAT_MODE_UNSAFE_FP_MATH
:
6798 AC_FLOAT_MODE_DEFAULT
;
6800 ctx
.builder
= ac_create_builder(ctx
.context
, float_mode
);
6801 ctx
.ac
.builder
= ctx
.builder
;
6803 memset(shader_info
, 0, sizeof(*shader_info
));
6805 for(int i
= 0; i
< shader_count
; ++i
)
6806 ac_nir_shader_info_pass(shaders
[i
], options
, &shader_info
->info
);
6808 for (i
= 0; i
< AC_UD_MAX_SETS
; i
++)
6809 shader_info
->user_sgprs_locs
.descriptor_sets
[i
].sgpr_idx
= -1;
6810 for (i
= 0; i
< AC_UD_MAX_UD
; i
++)
6811 shader_info
->user_sgprs_locs
.shader_data
[i
].sgpr_idx
= -1;
6813 ctx
.max_workgroup_size
= 0;
6814 for (int i
= 0; i
< shader_count
; ++i
) {
6815 ctx
.max_workgroup_size
= MAX2(ctx
.max_workgroup_size
,
6816 ac_nir_get_max_workgroup_size(ctx
.options
->chip_class
,
6820 create_function(&ctx
, shaders
[shader_count
- 1]->info
.stage
, shader_count
>= 2,
6821 shader_count
>= 2 ? shaders
[shader_count
- 2]->info
.stage
: MESA_SHADER_VERTEX
);
6823 ctx
.abi
.inputs
= &ctx
.inputs
[0];
6824 ctx
.abi
.emit_outputs
= handle_shader_outputs_post
;
6825 ctx
.abi
.emit_vertex
= visit_emit_vertex
;
6826 ctx
.abi
.load_ubo
= radv_load_ubo
;
6827 ctx
.abi
.load_ssbo
= radv_load_ssbo
;
6828 ctx
.abi
.load_sampler_desc
= radv_get_sampler_desc
;
6829 ctx
.abi
.clamp_shadow_reference
= false;
6831 if (shader_count
>= 2)
6832 ac_init_exec_full_mask(&ctx
.ac
);
6834 if (ctx
.ac
.chip_class
== GFX9
&&
6835 shaders
[shader_count
- 1]->info
.stage
== MESA_SHADER_TESS_CTRL
)
6836 ac_nir_fixup_ls_hs_input_vgprs(&ctx
);
6838 for(int i
= 0; i
< shader_count
; ++i
) {
6839 ctx
.stage
= shaders
[i
]->info
.stage
;
6840 ctx
.output_mask
= 0;
6841 ctx
.tess_outputs_written
= 0;
6842 ctx
.num_output_clips
= shaders
[i
]->info
.clip_distance_array_size
;
6843 ctx
.num_output_culls
= shaders
[i
]->info
.cull_distance_array_size
;
6845 if (shaders
[i
]->info
.stage
== MESA_SHADER_GEOMETRY
) {
6846 ctx
.gs_next_vertex
= ac_build_alloca(&ctx
.ac
, ctx
.ac
.i32
, "gs_next_vertex");
6847 ctx
.gs_max_out_vertices
= shaders
[i
]->info
.gs
.vertices_out
;
6848 ctx
.abi
.load_inputs
= load_gs_input
;
6849 ctx
.abi
.emit_primitive
= visit_end_primitive
;
6850 } else if (shaders
[i
]->info
.stage
== MESA_SHADER_TESS_CTRL
) {
6851 ctx
.tcs_outputs_read
= shaders
[i
]->info
.outputs_read
;
6852 ctx
.tcs_patch_outputs_read
= shaders
[i
]->info
.patch_outputs_read
;
6853 ctx
.abi
.load_tess_varyings
= load_tcs_varyings
;
6854 ctx
.abi
.load_patch_vertices_in
= load_patch_vertices_in
;
6855 ctx
.abi
.store_tcs_outputs
= store_tcs_output
;
6856 } else if (shaders
[i
]->info
.stage
== MESA_SHADER_TESS_EVAL
) {
6857 ctx
.tes_primitive_mode
= shaders
[i
]->info
.tess
.primitive_mode
;
6858 ctx
.abi
.load_tess_varyings
= load_tes_input
;
6859 ctx
.abi
.load_tess_coord
= load_tess_coord
;
6860 ctx
.abi
.load_patch_vertices_in
= load_patch_vertices_in
;
6861 } else if (shaders
[i
]->info
.stage
== MESA_SHADER_VERTEX
) {
6862 if (shader_info
->info
.vs
.needs_instance_id
) {
6863 if (ctx
.options
->key
.vs
.as_ls
) {
6864 ctx
.shader_info
->vs
.vgpr_comp_cnt
=
6865 MAX2(2, ctx
.shader_info
->vs
.vgpr_comp_cnt
);
6867 ctx
.shader_info
->vs
.vgpr_comp_cnt
=
6868 MAX2(1, ctx
.shader_info
->vs
.vgpr_comp_cnt
);
6871 } else if (shaders
[i
]->info
.stage
== MESA_SHADER_FRAGMENT
) {
6872 shader_info
->fs
.can_discard
= shaders
[i
]->info
.fs
.uses_discard
;
6873 ctx
.abi
.lookup_interp_param
= lookup_interp_param
;
6874 ctx
.abi
.load_sample_position
= load_sample_position
;
6878 emit_barrier(&ctx
.ac
, ctx
.stage
);
6880 ac_setup_rings(&ctx
);
6882 LLVMBasicBlockRef merge_block
;
6883 if (shader_count
>= 2) {
6884 LLVMValueRef fn
= LLVMGetBasicBlockParent(LLVMGetInsertBlock(ctx
.ac
.builder
));
6885 LLVMBasicBlockRef then_block
= LLVMAppendBasicBlockInContext(ctx
.ac
.context
, fn
, "");
6886 merge_block
= LLVMAppendBasicBlockInContext(ctx
.ac
.context
, fn
, "");
6888 LLVMValueRef count
= ac_build_bfe(&ctx
.ac
, ctx
.merged_wave_info
,
6889 LLVMConstInt(ctx
.ac
.i32
, 8 * i
, false),
6890 LLVMConstInt(ctx
.ac
.i32
, 8, false), false);
6891 LLVMValueRef thread_id
= ac_get_thread_id(&ctx
.ac
);
6892 LLVMValueRef cond
= LLVMBuildICmp(ctx
.ac
.builder
, LLVMIntULT
,
6893 thread_id
, count
, "");
6894 LLVMBuildCondBr(ctx
.ac
.builder
, cond
, then_block
, merge_block
);
6896 LLVMPositionBuilderAtEnd(ctx
.ac
.builder
, then_block
);
6899 if (shaders
[i
]->info
.stage
== MESA_SHADER_FRAGMENT
)
6900 handle_fs_inputs(&ctx
, shaders
[i
]);
6901 else if(shaders
[i
]->info
.stage
== MESA_SHADER_VERTEX
)
6902 handle_vs_inputs(&ctx
, shaders
[i
]);
6903 else if(shader_count
>= 2 && shaders
[i
]->info
.stage
== MESA_SHADER_GEOMETRY
)
6904 prepare_gs_input_vgprs(&ctx
);
6906 nir_foreach_variable(variable
, &shaders
[i
]->outputs
)
6907 scan_shader_output_decl(&ctx
, variable
, shaders
[i
], shaders
[i
]->info
.stage
);
6909 ac_nir_translate(&ctx
.ac
, &ctx
.abi
, shaders
[i
], &ctx
);
6911 if (shader_count
>= 2) {
6912 LLVMBuildBr(ctx
.ac
.builder
, merge_block
);
6913 LLVMPositionBuilderAtEnd(ctx
.ac
.builder
, merge_block
);
6916 if (shaders
[i
]->info
.stage
== MESA_SHADER_GEOMETRY
) {
6917 unsigned addclip
= shaders
[i
]->info
.clip_distance_array_size
+
6918 shaders
[i
]->info
.cull_distance_array_size
> 4;
6919 shader_info
->gs
.gsvs_vertex_size
= (util_bitcount64(ctx
.output_mask
) + addclip
) * 16;
6920 shader_info
->gs
.max_gsvs_emit_size
= shader_info
->gs
.gsvs_vertex_size
*
6921 shaders
[i
]->info
.gs
.vertices_out
;
6922 } else if (shaders
[i
]->info
.stage
== MESA_SHADER_TESS_CTRL
) {
6923 shader_info
->tcs
.outputs_written
= ctx
.tess_outputs_written
;
6924 shader_info
->tcs
.patch_outputs_written
= ctx
.tess_patch_outputs_written
;
6925 } else if (shaders
[i
]->info
.stage
== MESA_SHADER_VERTEX
&& ctx
.options
->key
.vs
.as_ls
) {
6926 shader_info
->vs
.outputs_written
= ctx
.tess_outputs_written
;
6930 LLVMBuildRetVoid(ctx
.builder
);
6932 if (options
->dump_preoptir
)
6933 ac_dump_module(ctx
.module
);
6935 ac_llvm_finalize_module(&ctx
);
6937 if (shader_count
== 1)
6938 ac_nir_eliminate_const_vs_outputs(&ctx
);
6943 static void ac_diagnostic_handler(LLVMDiagnosticInfoRef di
, void *context
)
6945 unsigned *retval
= (unsigned *)context
;
6946 LLVMDiagnosticSeverity severity
= LLVMGetDiagInfoSeverity(di
);
6947 char *description
= LLVMGetDiagInfoDescription(di
);
6949 if (severity
== LLVMDSError
) {
6951 fprintf(stderr
, "LLVM triggered Diagnostic Handler: %s\n",
6955 LLVMDisposeMessage(description
);
6958 static unsigned ac_llvm_compile(LLVMModuleRef M
,
6959 struct ac_shader_binary
*binary
,
6960 LLVMTargetMachineRef tm
)
6962 unsigned retval
= 0;
6964 LLVMContextRef llvm_ctx
;
6965 LLVMMemoryBufferRef out_buffer
;
6966 unsigned buffer_size
;
6967 const char *buffer_data
;
6970 /* Setup Diagnostic Handler*/
6971 llvm_ctx
= LLVMGetModuleContext(M
);
6973 LLVMContextSetDiagnosticHandler(llvm_ctx
, ac_diagnostic_handler
,
6977 mem_err
= LLVMTargetMachineEmitToMemoryBuffer(tm
, M
, LLVMObjectFile
,
6980 /* Process Errors/Warnings */
6982 fprintf(stderr
, "%s: %s", __FUNCTION__
, err
);
6988 /* Extract Shader Code*/
6989 buffer_size
= LLVMGetBufferSize(out_buffer
);
6990 buffer_data
= LLVMGetBufferStart(out_buffer
);
6992 ac_elf_read(buffer_data
, buffer_size
, binary
);
6995 LLVMDisposeMemoryBuffer(out_buffer
);
7001 static void ac_compile_llvm_module(LLVMTargetMachineRef tm
,
7002 LLVMModuleRef llvm_module
,
7003 struct ac_shader_binary
*binary
,
7004 struct ac_shader_config
*config
,
7005 struct ac_shader_variant_info
*shader_info
,
7006 gl_shader_stage stage
,
7007 bool dump_shader
, bool supports_spill
)
7010 ac_dump_module(llvm_module
);
7012 memset(binary
, 0, sizeof(*binary
));
7013 int v
= ac_llvm_compile(llvm_module
, binary
, tm
);
7015 fprintf(stderr
, "compile failed\n");
7019 fprintf(stderr
, "disasm:\n%s\n", binary
->disasm_string
);
7021 ac_shader_binary_read_config(binary
, config
, 0, supports_spill
);
7023 LLVMContextRef ctx
= LLVMGetModuleContext(llvm_module
);
7024 LLVMDisposeModule(llvm_module
);
7025 LLVMContextDispose(ctx
);
7027 if (stage
== MESA_SHADER_FRAGMENT
) {
7028 shader_info
->num_input_vgprs
= 0;
7029 if (G_0286CC_PERSP_SAMPLE_ENA(config
->spi_ps_input_addr
))
7030 shader_info
->num_input_vgprs
+= 2;
7031 if (G_0286CC_PERSP_CENTER_ENA(config
->spi_ps_input_addr
))
7032 shader_info
->num_input_vgprs
+= 2;
7033 if (G_0286CC_PERSP_CENTROID_ENA(config
->spi_ps_input_addr
))
7034 shader_info
->num_input_vgprs
+= 2;
7035 if (G_0286CC_PERSP_PULL_MODEL_ENA(config
->spi_ps_input_addr
))
7036 shader_info
->num_input_vgprs
+= 3;
7037 if (G_0286CC_LINEAR_SAMPLE_ENA(config
->spi_ps_input_addr
))
7038 shader_info
->num_input_vgprs
+= 2;
7039 if (G_0286CC_LINEAR_CENTER_ENA(config
->spi_ps_input_addr
))
7040 shader_info
->num_input_vgprs
+= 2;
7041 if (G_0286CC_LINEAR_CENTROID_ENA(config
->spi_ps_input_addr
))
7042 shader_info
->num_input_vgprs
+= 2;
7043 if (G_0286CC_LINE_STIPPLE_TEX_ENA(config
->spi_ps_input_addr
))
7044 shader_info
->num_input_vgprs
+= 1;
7045 if (G_0286CC_POS_X_FLOAT_ENA(config
->spi_ps_input_addr
))
7046 shader_info
->num_input_vgprs
+= 1;
7047 if (G_0286CC_POS_Y_FLOAT_ENA(config
->spi_ps_input_addr
))
7048 shader_info
->num_input_vgprs
+= 1;
7049 if (G_0286CC_POS_Z_FLOAT_ENA(config
->spi_ps_input_addr
))
7050 shader_info
->num_input_vgprs
+= 1;
7051 if (G_0286CC_POS_W_FLOAT_ENA(config
->spi_ps_input_addr
))
7052 shader_info
->num_input_vgprs
+= 1;
7053 if (G_0286CC_FRONT_FACE_ENA(config
->spi_ps_input_addr
))
7054 shader_info
->num_input_vgprs
+= 1;
7055 if (G_0286CC_ANCILLARY_ENA(config
->spi_ps_input_addr
))
7056 shader_info
->num_input_vgprs
+= 1;
7057 if (G_0286CC_SAMPLE_COVERAGE_ENA(config
->spi_ps_input_addr
))
7058 shader_info
->num_input_vgprs
+= 1;
7059 if (G_0286CC_POS_FIXED_PT_ENA(config
->spi_ps_input_addr
))
7060 shader_info
->num_input_vgprs
+= 1;
7062 config
->num_vgprs
= MAX2(config
->num_vgprs
, shader_info
->num_input_vgprs
);
7064 /* +3 for scratch wave offset and VCC */
7065 config
->num_sgprs
= MAX2(config
->num_sgprs
,
7066 shader_info
->num_input_sgprs
+ 3);
7068 /* Enable 64-bit and 16-bit denormals, because there is no performance
7071 * If denormals are enabled, all floating-point output modifiers are
7074 * Don't enable denormals for 32-bit floats, because:
7075 * - Floating-point output modifiers would be ignored by the hw.
7076 * - Some opcodes don't support denormals, such as v_mad_f32. We would
7077 * have to stop using those.
7078 * - SI & CI would be very slow.
7080 config
->float_mode
|= V_00B028_FP_64_DENORMS
;
7084 ac_fill_shader_info(struct ac_shader_variant_info
*shader_info
, struct nir_shader
*nir
, const struct ac_nir_compiler_options
*options
)
7086 switch (nir
->info
.stage
) {
7087 case MESA_SHADER_COMPUTE
:
7088 for (int i
= 0; i
< 3; ++i
)
7089 shader_info
->cs
.block_size
[i
] = nir
->info
.cs
.local_size
[i
];
7091 case MESA_SHADER_FRAGMENT
:
7092 shader_info
->fs
.early_fragment_test
= nir
->info
.fs
.early_fragment_tests
;
7094 case MESA_SHADER_GEOMETRY
:
7095 shader_info
->gs
.vertices_in
= nir
->info
.gs
.vertices_in
;
7096 shader_info
->gs
.vertices_out
= nir
->info
.gs
.vertices_out
;
7097 shader_info
->gs
.output_prim
= nir
->info
.gs
.output_primitive
;
7098 shader_info
->gs
.invocations
= nir
->info
.gs
.invocations
;
7100 case MESA_SHADER_TESS_EVAL
:
7101 shader_info
->tes
.primitive_mode
= nir
->info
.tess
.primitive_mode
;
7102 shader_info
->tes
.spacing
= nir
->info
.tess
.spacing
;
7103 shader_info
->tes
.ccw
= nir
->info
.tess
.ccw
;
7104 shader_info
->tes
.point_mode
= nir
->info
.tess
.point_mode
;
7105 shader_info
->tes
.as_es
= options
->key
.tes
.as_es
;
7107 case MESA_SHADER_TESS_CTRL
:
7108 shader_info
->tcs
.tcs_vertices_out
= nir
->info
.tess
.tcs_vertices_out
;
7110 case MESA_SHADER_VERTEX
:
7111 shader_info
->vs
.as_es
= options
->key
.vs
.as_es
;
7112 shader_info
->vs
.as_ls
= options
->key
.vs
.as_ls
;
7113 /* in LS mode we need at least 1, invocation id needs 2, handled elsewhere */
7114 if (options
->key
.vs
.as_ls
)
7115 shader_info
->vs
.vgpr_comp_cnt
= MAX2(1, shader_info
->vs
.vgpr_comp_cnt
);
7122 void ac_compile_nir_shader(LLVMTargetMachineRef tm
,
7123 struct ac_shader_binary
*binary
,
7124 struct ac_shader_config
*config
,
7125 struct ac_shader_variant_info
*shader_info
,
7126 struct nir_shader
*const *nir
,
7128 const struct ac_nir_compiler_options
*options
,
7132 LLVMModuleRef llvm_module
= ac_translate_nir_to_llvm(tm
, nir
, nir_count
, shader_info
,
7135 ac_compile_llvm_module(tm
, llvm_module
, binary
, config
, shader_info
, nir
[0]->info
.stage
, dump_shader
, options
->supports_spill
);
7136 for (int i
= 0; i
< nir_count
; ++i
)
7137 ac_fill_shader_info(shader_info
, nir
[i
], options
);
7139 /* Determine the ES type (VS or TES) for the GS on GFX9. */
7140 if (options
->chip_class
== GFX9
) {
7141 if (nir_count
== 2 &&
7142 nir
[1]->info
.stage
== MESA_SHADER_GEOMETRY
) {
7143 shader_info
->gs
.es_type
= nir
[0]->info
.stage
;
7149 ac_gs_copy_shader_emit(struct nir_to_llvm_context
*ctx
)
7151 LLVMValueRef vtx_offset
=
7152 LLVMBuildMul(ctx
->builder
, ctx
->abi
.vertex_id
,
7153 LLVMConstInt(ctx
->ac
.i32
, 4, false), "");
7156 for (unsigned i
= 0; i
< RADEON_LLVM_MAX_OUTPUTS
; ++i
) {
7160 if (!(ctx
->output_mask
& (1ull << i
)))
7163 if (i
== VARYING_SLOT_CLIP_DIST0
) {
7164 /* unpack clip and cull from a single set of slots */
7165 length
= ctx
->num_output_clips
+ ctx
->num_output_culls
;
7170 for (unsigned j
= 0; j
< length
; j
++) {
7171 LLVMValueRef value
, soffset
;
7173 soffset
= LLVMConstInt(ctx
->ac
.i32
,
7175 ctx
->gs_max_out_vertices
* 16 * 4, false);
7177 value
= ac_build_buffer_load(&ctx
->ac
, ctx
->gsvs_ring
,
7179 vtx_offset
, soffset
,
7180 0, 1, 1, true, false);
7182 LLVMBuildStore(ctx
->builder
,
7183 ac_to_float(&ctx
->ac
, value
), ctx
->nir
->outputs
[radeon_llvm_reg_index_soa(i
, j
)]);
7187 handle_vs_outputs_post(ctx
, false, &ctx
->shader_info
->vs
.outinfo
);
7190 void ac_create_gs_copy_shader(LLVMTargetMachineRef tm
,
7191 struct nir_shader
*geom_shader
,
7192 struct ac_shader_binary
*binary
,
7193 struct ac_shader_config
*config
,
7194 struct ac_shader_variant_info
*shader_info
,
7195 const struct ac_nir_compiler_options
*options
,
7198 struct nir_to_llvm_context ctx
= {0};
7199 ctx
.context
= LLVMContextCreate();
7200 ctx
.module
= LLVMModuleCreateWithNameInContext("shader", ctx
.context
);
7201 ctx
.options
= options
;
7202 ctx
.shader_info
= shader_info
;
7204 ac_llvm_context_init(&ctx
.ac
, ctx
.context
, options
->chip_class
,
7206 ctx
.ac
.module
= ctx
.module
;
7208 ctx
.is_gs_copy_shader
= true;
7209 LLVMSetTarget(ctx
.module
, "amdgcn--");
7211 enum ac_float_mode float_mode
=
7212 options
->unsafe_math
? AC_FLOAT_MODE_UNSAFE_FP_MATH
:
7213 AC_FLOAT_MODE_DEFAULT
;
7215 ctx
.builder
= ac_create_builder(ctx
.context
, float_mode
);
7216 ctx
.ac
.builder
= ctx
.builder
;
7217 ctx
.stage
= MESA_SHADER_VERTEX
;
7219 create_function(&ctx
, MESA_SHADER_VERTEX
, false, MESA_SHADER_VERTEX
);
7221 ctx
.gs_max_out_vertices
= geom_shader
->info
.gs
.vertices_out
;
7222 ac_setup_rings(&ctx
);
7224 ctx
.num_output_clips
= geom_shader
->info
.clip_distance_array_size
;
7225 ctx
.num_output_culls
= geom_shader
->info
.cull_distance_array_size
;
7227 struct ac_nir_context nir_ctx
= {};
7228 nir_ctx
.ac
= ctx
.ac
;
7229 nir_ctx
.abi
= &ctx
.abi
;
7231 nir_ctx
.nctx
= &ctx
;
7234 nir_foreach_variable(variable
, &geom_shader
->outputs
) {
7235 scan_shader_output_decl(&ctx
, variable
, geom_shader
, MESA_SHADER_VERTEX
);
7236 handle_shader_output_decl(&nir_ctx
, geom_shader
, variable
);
7239 ac_gs_copy_shader_emit(&ctx
);
7243 LLVMBuildRetVoid(ctx
.builder
);
7245 ac_llvm_finalize_module(&ctx
);
7247 ac_compile_llvm_module(tm
, ctx
.module
, binary
, config
, shader_info
,
7249 dump_shader
, options
->supports_spill
);