Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Advanced Micro Devices, Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the |
| 6 | * "Software"), to deal in the Software without restriction, including |
| 7 | * without limitation the rights to use, copy, modify, merge, publish, |
| 8 | * distribute, sub license, and/or sell copies of the Software, and to |
| 9 | * permit persons to whom the Software is furnished to do so, subject to |
| 10 | * the following conditions: |
| 11 | * |
| 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 13 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| 15 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| 16 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| 17 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| 18 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 19 | * |
| 20 | * The above copyright notice and this permission notice (including the |
| 21 | * next paragraph) shall be included in all copies or substantial portions |
| 22 | * of the Software. |
| 23 | * |
| 24 | */ |
| 25 | /* based on pieces from si_pipe.c and radeon_llvm_emit.c */ |
| 26 | #include "ac_llvm_build.h" |
| 27 | |
| 28 | #include <llvm-c/Core.h> |
Eric Engestrom | 19d9e57 | 2019-08-28 00:06:03 +0100 | [diff] [blame] | 29 | #include <llvm/Config/llvm-config.h> |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 30 | |
| 31 | #include "c11/threads.h" |
| 32 | |
| 33 | #include <assert.h> |
| 34 | #include <stdio.h> |
| 35 | |
| 36 | #include "ac_llvm_util.h" |
Timur Kristóf | d8b46f8 | 2019-09-25 14:05:19 +0200 | [diff] [blame] | 37 | #include "ac_shader_util.h" |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 38 | #include "ac_exp_param.h" |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 39 | #include "util/bitscan.h" |
| 40 | #include "util/macros.h" |
Connor Abbott | ac27fa7 | 2017-06-05 14:16:43 -0700 | [diff] [blame] | 41 | #include "util/u_atomic.h" |
Nicolai Hähnle | 625dcbb | 2018-03-23 11:20:24 +0100 | [diff] [blame] | 42 | #include "util/u_math.h" |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 43 | #include "sid.h" |
| 44 | |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 45 | #include "shader_enums.h" |
| 46 | |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 47 | #define AC_LLVM_INITIAL_CF_DEPTH 4 |
| 48 | |
| 49 | /* Data for if/else/endif and bgnloop/endloop control flow structures. |
| 50 | */ |
| 51 | struct ac_llvm_flow { |
| 52 | /* Loop exit or next part of if/else/endif. */ |
| 53 | LLVMBasicBlockRef next_block; |
| 54 | LLVMBasicBlockRef loop_entry_block; |
| 55 | }; |
| 56 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 57 | /* Initialize module-independent parts of the context. |
| 58 | * |
| 59 | * The caller is responsible for initializing ctx::module and ctx::builder. |
| 60 | */ |
| 61 | void |
Marek Olšák | 4695984 | 2018-07-04 01:37:30 -0400 | [diff] [blame] | 62 | ac_llvm_context_init(struct ac_llvm_context *ctx, |
Marek Olšák | eb54b8c | 2019-07-12 17:32:18 -0400 | [diff] [blame] | 63 | struct ac_llvm_compiler *compiler, |
Marek Olšák | 9e467d1 | 2019-07-12 17:12:17 -0400 | [diff] [blame] | 64 | enum chip_class chip_class, enum radeon_family family, |
Marek Olšák | 223b317 | 2019-08-12 20:37:11 -0400 | [diff] [blame] | 65 | enum ac_float_mode float_mode, unsigned wave_size, |
| 66 | unsigned ballot_mask_bits) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 67 | { |
| 68 | LLVMValueRef args[1]; |
| 69 | |
Marek Olšák | 4695984 | 2018-07-04 01:37:30 -0400 | [diff] [blame] | 70 | ctx->context = LLVMContextCreate(); |
| 71 | |
Nicolai Hähnle | 3db86d8 | 2017-09-13 14:36:23 +0200 | [diff] [blame] | 72 | ctx->chip_class = chip_class; |
Samuel Pitoiset | 03ef264 | 2017-12-21 17:53:14 +0100 | [diff] [blame] | 73 | ctx->family = family; |
Marek Olšák | 9e467d1 | 2019-07-12 17:12:17 -0400 | [diff] [blame] | 74 | ctx->wave_size = wave_size; |
Marek Olšák | 223b317 | 2019-08-12 20:37:11 -0400 | [diff] [blame] | 75 | ctx->ballot_mask_bits = ballot_mask_bits; |
Samuel Pitoiset | 7dfb15f | 2019-10-14 15:36:37 +0200 | [diff] [blame] | 76 | ctx->float_mode = float_mode; |
Marek Olšák | eb54b8c | 2019-07-12 17:32:18 -0400 | [diff] [blame] | 77 | ctx->module = ac_create_module(wave_size == 32 ? compiler->tm_wave32 |
| 78 | : compiler->tm, |
| 79 | ctx->context); |
Marek Olšák | 81091a5 | 2019-07-12 17:35:39 -0400 | [diff] [blame] | 80 | ctx->builder = ac_create_builder(ctx->context, float_mode); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 81 | |
| 82 | ctx->voidt = LLVMVoidTypeInContext(ctx->context); |
| 83 | ctx->i1 = LLVMInt1TypeInContext(ctx->context); |
| 84 | ctx->i8 = LLVMInt8TypeInContext(ctx->context); |
Nicolai Hähnle | 7bf8c94 | 2017-03-30 14:10:26 +0200 | [diff] [blame] | 85 | ctx->i16 = LLVMIntTypeInContext(ctx->context, 16); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 86 | ctx->i32 = LLVMIntTypeInContext(ctx->context, 32); |
Nicolai Hähnle | 7bf8c94 | 2017-03-30 14:10:26 +0200 | [diff] [blame] | 87 | ctx->i64 = LLVMIntTypeInContext(ctx->context, 64); |
Samuel Pitoiset | 3fbdcd9 | 2018-11-02 09:50:32 +0100 | [diff] [blame] | 88 | ctx->intptr = ctx->i32; |
Nicolai Hähnle | 7bf8c94 | 2017-03-30 14:10:26 +0200 | [diff] [blame] | 89 | ctx->f16 = LLVMHalfTypeInContext(ctx->context); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 90 | ctx->f32 = LLVMFloatTypeInContext(ctx->context); |
Nicolai Hähnle | 7bf8c94 | 2017-03-30 14:10:26 +0200 | [diff] [blame] | 91 | ctx->f64 = LLVMDoubleTypeInContext(ctx->context); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 92 | ctx->v2i16 = LLVMVectorType(ctx->i16, 2); |
Timothy Arceri | 309a514 | 2017-11-02 12:59:00 +1100 | [diff] [blame] | 93 | ctx->v2i32 = LLVMVectorType(ctx->i32, 2); |
Timothy Arceri | ee376ac | 2017-11-02 13:02:54 +1100 | [diff] [blame] | 94 | ctx->v3i32 = LLVMVectorType(ctx->i32, 3); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 95 | ctx->v4i32 = LLVMVectorType(ctx->i32, 4); |
Timothy Arceri | 7f49667 | 2017-11-02 13:24:27 +1100 | [diff] [blame] | 96 | ctx->v2f32 = LLVMVectorType(ctx->f32, 2); |
Samuel Pitoiset | 6970a9a | 2019-05-02 16:15:03 +0200 | [diff] [blame] | 97 | ctx->v3f32 = LLVMVectorType(ctx->f32, 3); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 98 | ctx->v4f32 = LLVMVectorType(ctx->f32, 4); |
Nicolai Hähnle | edfd3be | 2017-06-08 20:04:28 +0200 | [diff] [blame] | 99 | ctx->v8i32 = LLVMVectorType(ctx->i32, 8); |
Marek Olšák | 54e6900 | 2019-07-16 00:55:46 -0400 | [diff] [blame] | 100 | ctx->iN_wavemask = LLVMIntTypeInContext(ctx->context, ctx->wave_size); |
Marek Olšák | 223b317 | 2019-08-12 20:37:11 -0400 | [diff] [blame] | 101 | ctx->iN_ballotmask = LLVMIntTypeInContext(ctx->context, ballot_mask_bits); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 102 | |
Samuel Pitoiset | 6e632eb | 2019-03-13 15:53:51 +0100 | [diff] [blame] | 103 | ctx->i8_0 = LLVMConstInt(ctx->i8, 0, false); |
| 104 | ctx->i8_1 = LLVMConstInt(ctx->i8, 1, false); |
Samuel Pitoiset | cfd6314 | 2018-09-14 12:52:34 +0200 | [diff] [blame] | 105 | ctx->i16_0 = LLVMConstInt(ctx->i16, 0, false); |
| 106 | ctx->i16_1 = LLVMConstInt(ctx->i16, 1, false); |
Nicolai Hähnle | 331a574 | 2017-05-18 22:02:48 +0200 | [diff] [blame] | 107 | ctx->i32_0 = LLVMConstInt(ctx->i32, 0, false); |
| 108 | ctx->i32_1 = LLVMConstInt(ctx->i32, 1, false); |
Timothy Arceri | 38876c8 | 2018-01-14 10:06:36 +1100 | [diff] [blame] | 109 | ctx->i64_0 = LLVMConstInt(ctx->i64, 0, false); |
| 110 | ctx->i64_1 = LLVMConstInt(ctx->i64, 1, false); |
Samuel Pitoiset | ff11c9d | 2019-03-21 10:14:29 +0100 | [diff] [blame] | 111 | ctx->f16_0 = LLVMConstReal(ctx->f16, 0.0); |
| 112 | ctx->f16_1 = LLVMConstReal(ctx->f16, 1.0); |
Nicolai Hähnle | 331a574 | 2017-05-18 22:02:48 +0200 | [diff] [blame] | 113 | ctx->f32_0 = LLVMConstReal(ctx->f32, 0.0); |
| 114 | ctx->f32_1 = LLVMConstReal(ctx->f32, 1.0); |
Timothy Arceri | d7b6b8b | 2018-01-11 22:09:35 +1100 | [diff] [blame] | 115 | ctx->f64_0 = LLVMConstReal(ctx->f64, 0.0); |
Timothy Arceri | c0eb304 | 2018-01-11 17:03:36 +1100 | [diff] [blame] | 116 | ctx->f64_1 = LLVMConstReal(ctx->f64, 1.0); |
Nicolai Hähnle | 331a574 | 2017-05-18 22:02:48 +0200 | [diff] [blame] | 117 | |
Dave Airlie | a76b6c2 | 2017-10-26 15:20:15 +1000 | [diff] [blame] | 118 | ctx->i1false = LLVMConstInt(ctx->i1, 0, false); |
| 119 | ctx->i1true = LLVMConstInt(ctx->i1, 1, false); |
| 120 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 121 | ctx->range_md_kind = LLVMGetMDKindIDInContext(ctx->context, |
| 122 | "range", 5); |
| 123 | |
| 124 | ctx->invariant_load_md_kind = LLVMGetMDKindIDInContext(ctx->context, |
| 125 | "invariant.load", 14); |
| 126 | |
| 127 | ctx->fpmath_md_kind = LLVMGetMDKindIDInContext(ctx->context, "fpmath", 6); |
| 128 | |
| 129 | args[0] = LLVMConstReal(ctx->f32, 2.5); |
| 130 | ctx->fpmath_md_2p5_ulp = LLVMMDNodeInContext(ctx->context, args, 1); |
| 131 | |
| 132 | ctx->uniform_md_kind = LLVMGetMDKindIDInContext(ctx->context, |
| 133 | "amdgpu.uniform", 14); |
| 134 | |
| 135 | ctx->empty_md = LLVMMDNodeInContext(ctx->context, NULL, 0); |
Marek Olšák | f6eca14 | 2019-07-24 17:19:38 -0400 | [diff] [blame] | 136 | ctx->flow = calloc(1, sizeof(*ctx->flow)); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 137 | } |
| 138 | |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 139 | void |
| 140 | ac_llvm_context_dispose(struct ac_llvm_context *ctx) |
| 141 | { |
Marek Olšák | f6eca14 | 2019-07-24 17:19:38 -0400 | [diff] [blame] | 142 | free(ctx->flow->stack); |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 143 | free(ctx->flow); |
| 144 | ctx->flow = NULL; |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 145 | } |
| 146 | |
Timothy Arceri | b99ebaa | 2017-12-11 12:54:47 +1100 | [diff] [blame] | 147 | int |
| 148 | ac_get_llvm_num_components(LLVMValueRef value) |
| 149 | { |
| 150 | LLVMTypeRef type = LLVMTypeOf(value); |
| 151 | unsigned num_components = LLVMGetTypeKind(type) == LLVMVectorTypeKind |
| 152 | ? LLVMGetVectorSize(type) |
| 153 | : 1; |
| 154 | return num_components; |
| 155 | } |
| 156 | |
| 157 | LLVMValueRef |
| 158 | ac_llvm_extract_elem(struct ac_llvm_context *ac, |
| 159 | LLVMValueRef value, |
| 160 | int index) |
| 161 | { |
Timothy Arceri | 4a0c24f2 | 2017-12-13 18:46:56 +1100 | [diff] [blame] | 162 | if (LLVMGetTypeKind(LLVMTypeOf(value)) != LLVMVectorTypeKind) { |
| 163 | assert(index == 0); |
Timothy Arceri | b99ebaa | 2017-12-11 12:54:47 +1100 | [diff] [blame] | 164 | return value; |
Timothy Arceri | 4a0c24f2 | 2017-12-13 18:46:56 +1100 | [diff] [blame] | 165 | } |
Timothy Arceri | b99ebaa | 2017-12-11 12:54:47 +1100 | [diff] [blame] | 166 | |
| 167 | return LLVMBuildExtractElement(ac->builder, value, |
| 168 | LLVMConstInt(ac->i32, index, false), ""); |
| 169 | } |
| 170 | |
Timothy Arceri | a9f6b39 | 2018-02-06 14:38:19 +1100 | [diff] [blame] | 171 | int |
| 172 | ac_get_elem_bits(struct ac_llvm_context *ctx, LLVMTypeRef type) |
| 173 | { |
| 174 | if (LLVMGetTypeKind(type) == LLVMVectorTypeKind) |
| 175 | type = LLVMGetElementType(type); |
| 176 | |
| 177 | if (LLVMGetTypeKind(type) == LLVMIntegerTypeKind) |
| 178 | return LLVMGetIntTypeWidth(type); |
| 179 | |
Samuel Pitoiset | bef7b2f | 2019-11-11 11:34:05 +0100 | [diff] [blame] | 180 | if (LLVMGetTypeKind(type) == LLVMPointerTypeKind) { |
| 181 | if (LLVMGetPointerAddressSpace(type) == AC_ADDR_SPACE_LDS) |
| 182 | return 32; |
| 183 | } |
| 184 | |
Timothy Arceri | a9f6b39 | 2018-02-06 14:38:19 +1100 | [diff] [blame] | 185 | if (type == ctx->f16) |
| 186 | return 16; |
| 187 | if (type == ctx->f32) |
| 188 | return 32; |
| 189 | if (type == ctx->f64) |
| 190 | return 64; |
| 191 | |
| 192 | unreachable("Unhandled type kind in get_elem_bits"); |
| 193 | } |
| 194 | |
Connor Abbott | c181d4f | 2017-06-05 14:37:01 -0700 | [diff] [blame] | 195 | unsigned |
| 196 | ac_get_type_size(LLVMTypeRef type) |
| 197 | { |
| 198 | LLVMTypeKind kind = LLVMGetTypeKind(type); |
| 199 | |
| 200 | switch (kind) { |
| 201 | case LLVMIntegerTypeKind: |
| 202 | return LLVMGetIntTypeWidth(type) / 8; |
Daniel Schürmann | f582367 | 2018-02-03 14:37:26 +0100 | [diff] [blame] | 203 | case LLVMHalfTypeKind: |
| 204 | return 2; |
Connor Abbott | c181d4f | 2017-06-05 14:37:01 -0700 | [diff] [blame] | 205 | case LLVMFloatTypeKind: |
| 206 | return 4; |
Connor Abbott | fafa299 | 2017-07-18 20:44:47 -0700 | [diff] [blame] | 207 | case LLVMDoubleTypeKind: |
Marek Olšák | 931ec80 | 2018-01-01 21:04:22 +0100 | [diff] [blame] | 208 | return 8; |
Connor Abbott | c181d4f | 2017-06-05 14:37:01 -0700 | [diff] [blame] | 209 | case LLVMPointerTypeKind: |
Marek Olšák | a668c8d | 2018-09-07 18:44:54 -0400 | [diff] [blame] | 210 | if (LLVMGetPointerAddressSpace(type) == AC_ADDR_SPACE_CONST_32BIT) |
Marek Olšák | 931ec80 | 2018-01-01 21:04:22 +0100 | [diff] [blame] | 211 | return 4; |
Connor Abbott | c181d4f | 2017-06-05 14:37:01 -0700 | [diff] [blame] | 212 | return 8; |
| 213 | case LLVMVectorTypeKind: |
| 214 | return LLVMGetVectorSize(type) * |
| 215 | ac_get_type_size(LLVMGetElementType(type)); |
| 216 | case LLVMArrayTypeKind: |
| 217 | return LLVMGetArrayLength(type) * |
| 218 | ac_get_type_size(LLVMGetElementType(type)); |
| 219 | default: |
| 220 | assert(0); |
| 221 | return 0; |
| 222 | } |
| 223 | } |
| 224 | |
Connor Abbott | 50967cd | 2017-07-18 17:32:10 -0700 | [diff] [blame] | 225 | static LLVMTypeRef to_integer_type_scalar(struct ac_llvm_context *ctx, LLVMTypeRef t) |
| 226 | { |
Samuel Pitoiset | 6e632eb | 2019-03-13 15:53:51 +0100 | [diff] [blame] | 227 | if (t == ctx->i8) |
| 228 | return ctx->i8; |
| 229 | else if (t == ctx->f16 || t == ctx->i16) |
Connor Abbott | 50967cd | 2017-07-18 17:32:10 -0700 | [diff] [blame] | 230 | return ctx->i16; |
| 231 | else if (t == ctx->f32 || t == ctx->i32) |
| 232 | return ctx->i32; |
| 233 | else if (t == ctx->f64 || t == ctx->i64) |
| 234 | return ctx->i64; |
| 235 | else |
| 236 | unreachable("Unhandled integer size"); |
| 237 | } |
| 238 | |
| 239 | LLVMTypeRef |
| 240 | ac_to_integer_type(struct ac_llvm_context *ctx, LLVMTypeRef t) |
| 241 | { |
| 242 | if (LLVMGetTypeKind(t) == LLVMVectorTypeKind) { |
| 243 | LLVMTypeRef elem_type = LLVMGetElementType(t); |
| 244 | return LLVMVectorType(to_integer_type_scalar(ctx, elem_type), |
| 245 | LLVMGetVectorSize(t)); |
| 246 | } |
Bas Nieuwenhuizen | 58c8dad | 2019-01-23 01:54:39 +0100 | [diff] [blame] | 247 | if (LLVMGetTypeKind(t) == LLVMPointerTypeKind) { |
| 248 | switch (LLVMGetPointerAddressSpace(t)) { |
| 249 | case AC_ADDR_SPACE_GLOBAL: |
| 250 | return ctx->i64; |
Samuel Pitoiset | 3976079 | 2019-10-21 14:11:47 +0200 | [diff] [blame] | 251 | case AC_ADDR_SPACE_CONST_32BIT: |
Bas Nieuwenhuizen | 58c8dad | 2019-01-23 01:54:39 +0100 | [diff] [blame] | 252 | case AC_ADDR_SPACE_LDS: |
| 253 | return ctx->i32; |
| 254 | default: |
| 255 | unreachable("unhandled address space"); |
| 256 | } |
| 257 | } |
Connor Abbott | 50967cd | 2017-07-18 17:32:10 -0700 | [diff] [blame] | 258 | return to_integer_type_scalar(ctx, t); |
| 259 | } |
| 260 | |
| 261 | LLVMValueRef |
| 262 | ac_to_integer(struct ac_llvm_context *ctx, LLVMValueRef v) |
| 263 | { |
| 264 | LLVMTypeRef type = LLVMTypeOf(v); |
Bas Nieuwenhuizen | 58c8dad | 2019-01-23 01:54:39 +0100 | [diff] [blame] | 265 | if (LLVMGetTypeKind(type) == LLVMPointerTypeKind) { |
| 266 | return LLVMBuildPtrToInt(ctx->builder, v, ac_to_integer_type(ctx, type), ""); |
| 267 | } |
Connor Abbott | 50967cd | 2017-07-18 17:32:10 -0700 | [diff] [blame] | 268 | return LLVMBuildBitCast(ctx->builder, v, ac_to_integer_type(ctx, type), ""); |
| 269 | } |
| 270 | |
Dave Airlie | ec9fe8a | 2018-11-19 13:00:36 +1000 | [diff] [blame] | 271 | LLVMValueRef |
| 272 | ac_to_integer_or_pointer(struct ac_llvm_context *ctx, LLVMValueRef v) |
| 273 | { |
| 274 | LLVMTypeRef type = LLVMTypeOf(v); |
| 275 | if (LLVMGetTypeKind(type) == LLVMPointerTypeKind) |
| 276 | return v; |
| 277 | return ac_to_integer(ctx, v); |
| 278 | } |
| 279 | |
Connor Abbott | 50967cd | 2017-07-18 17:32:10 -0700 | [diff] [blame] | 280 | static LLVMTypeRef to_float_type_scalar(struct ac_llvm_context *ctx, LLVMTypeRef t) |
| 281 | { |
Samuel Pitoiset | 6e632eb | 2019-03-13 15:53:51 +0100 | [diff] [blame] | 282 | if (t == ctx->i8) |
| 283 | return ctx->i8; |
| 284 | else if (t == ctx->i16 || t == ctx->f16) |
Connor Abbott | 50967cd | 2017-07-18 17:32:10 -0700 | [diff] [blame] | 285 | return ctx->f16; |
| 286 | else if (t == ctx->i32 || t == ctx->f32) |
| 287 | return ctx->f32; |
| 288 | else if (t == ctx->i64 || t == ctx->f64) |
| 289 | return ctx->f64; |
| 290 | else |
| 291 | unreachable("Unhandled float size"); |
| 292 | } |
| 293 | |
| 294 | LLVMTypeRef |
| 295 | ac_to_float_type(struct ac_llvm_context *ctx, LLVMTypeRef t) |
| 296 | { |
| 297 | if (LLVMGetTypeKind(t) == LLVMVectorTypeKind) { |
| 298 | LLVMTypeRef elem_type = LLVMGetElementType(t); |
| 299 | return LLVMVectorType(to_float_type_scalar(ctx, elem_type), |
| 300 | LLVMGetVectorSize(t)); |
| 301 | } |
| 302 | return to_float_type_scalar(ctx, t); |
| 303 | } |
| 304 | |
| 305 | LLVMValueRef |
| 306 | ac_to_float(struct ac_llvm_context *ctx, LLVMValueRef v) |
| 307 | { |
| 308 | LLVMTypeRef type = LLVMTypeOf(v); |
| 309 | return LLVMBuildBitCast(ctx->builder, v, ac_to_float_type(ctx, type), ""); |
| 310 | } |
| 311 | |
| 312 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 313 | LLVMValueRef |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 314 | ac_build_intrinsic(struct ac_llvm_context *ctx, const char *name, |
| 315 | LLVMTypeRef return_type, LLVMValueRef *params, |
| 316 | unsigned param_count, unsigned attrib_mask) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 317 | { |
Marek Olšák | 940da36 | 2017-02-22 02:29:12 +0100 | [diff] [blame] | 318 | LLVMValueRef function, call; |
Marek Olšák | 3bf1e03 | 2018-02-02 19:26:49 +0100 | [diff] [blame] | 319 | bool set_callsite_attrs = !(attrib_mask & AC_FUNC_ATTR_LEGACY); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 320 | |
| 321 | function = LLVMGetNamedFunction(ctx->module, name); |
| 322 | if (!function) { |
| 323 | LLVMTypeRef param_types[32], function_type; |
| 324 | unsigned i; |
| 325 | |
| 326 | assert(param_count <= 32); |
| 327 | |
| 328 | for (i = 0; i < param_count; ++i) { |
| 329 | assert(params[i]); |
| 330 | param_types[i] = LLVMTypeOf(params[i]); |
| 331 | } |
| 332 | function_type = |
| 333 | LLVMFunctionType(return_type, param_types, param_count, 0); |
| 334 | function = LLVMAddFunction(ctx->module, name, function_type); |
| 335 | |
| 336 | LLVMSetFunctionCallConv(function, LLVMCCallConv); |
| 337 | LLVMSetLinkage(function, LLVMExternalLinkage); |
| 338 | |
Marek Olšák | 940da36 | 2017-02-22 02:29:12 +0100 | [diff] [blame] | 339 | if (!set_callsite_attrs) |
| 340 | ac_add_func_attributes(ctx->context, function, attrib_mask); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 341 | } |
Marek Olšák | 940da36 | 2017-02-22 02:29:12 +0100 | [diff] [blame] | 342 | |
| 343 | call = LLVMBuildCall(ctx->builder, function, params, param_count, ""); |
| 344 | if (set_callsite_attrs) |
| 345 | ac_add_func_attributes(ctx->context, call, attrib_mask); |
| 346 | return call; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 347 | } |
| 348 | |
Marek Olšák | 9af0331 | 2017-02-23 22:58:49 +0100 | [diff] [blame] | 349 | /** |
| 350 | * Given the i32 or vNi32 \p type, generate the textual name (e.g. for use with |
| 351 | * intrinsic names). |
| 352 | */ |
| 353 | void ac_build_type_name_for_intr(LLVMTypeRef type, char *buf, unsigned bufsize) |
| 354 | { |
| 355 | LLVMTypeRef elem_type = type; |
| 356 | |
| 357 | assert(bufsize >= 8); |
| 358 | |
| 359 | if (LLVMGetTypeKind(type) == LLVMVectorTypeKind) { |
| 360 | int ret = snprintf(buf, bufsize, "v%u", |
| 361 | LLVMGetVectorSize(type)); |
| 362 | if (ret < 0) { |
| 363 | char *type_name = LLVMPrintTypeToString(type); |
| 364 | fprintf(stderr, "Error building type name for: %s\n", |
| 365 | type_name); |
Marek Olšák | efe2d8c | 2019-07-24 17:36:25 -0400 | [diff] [blame] | 366 | LLVMDisposeMessage(type_name); |
Marek Olšák | 9af0331 | 2017-02-23 22:58:49 +0100 | [diff] [blame] | 367 | return; |
| 368 | } |
| 369 | elem_type = LLVMGetElementType(type); |
| 370 | buf += ret; |
| 371 | bufsize -= ret; |
| 372 | } |
| 373 | switch (LLVMGetTypeKind(elem_type)) { |
| 374 | default: break; |
| 375 | case LLVMIntegerTypeKind: |
| 376 | snprintf(buf, bufsize, "i%d", LLVMGetIntTypeWidth(elem_type)); |
| 377 | break; |
Daniel Schürmann | f582367 | 2018-02-03 14:37:26 +0100 | [diff] [blame] | 378 | case LLVMHalfTypeKind: |
| 379 | snprintf(buf, bufsize, "f16"); |
| 380 | break; |
Marek Olšák | 9af0331 | 2017-02-23 22:58:49 +0100 | [diff] [blame] | 381 | case LLVMFloatTypeKind: |
| 382 | snprintf(buf, bufsize, "f32"); |
| 383 | break; |
| 384 | case LLVMDoubleTypeKind: |
| 385 | snprintf(buf, bufsize, "f64"); |
| 386 | break; |
| 387 | } |
| 388 | } |
| 389 | |
Nicolai Hähnle | 052b974 | 2017-09-29 11:17:03 +0200 | [diff] [blame] | 390 | /** |
| 391 | * Helper function that builds an LLVM IR PHI node and immediately adds |
| 392 | * incoming edges. |
| 393 | */ |
| 394 | LLVMValueRef |
| 395 | ac_build_phi(struct ac_llvm_context *ctx, LLVMTypeRef type, |
| 396 | unsigned count_incoming, LLVMValueRef *values, |
| 397 | LLVMBasicBlockRef *blocks) |
| 398 | { |
| 399 | LLVMValueRef phi = LLVMBuildPhi(ctx->builder, type, ""); |
| 400 | LLVMAddIncoming(phi, values, blocks, count_incoming); |
| 401 | return phi; |
| 402 | } |
| 403 | |
Marek Olšák | 2276f8f | 2018-08-13 23:59:28 -0400 | [diff] [blame] | 404 | void ac_build_s_barrier(struct ac_llvm_context *ctx) |
| 405 | { |
| 406 | ac_build_intrinsic(ctx, "llvm.amdgcn.s.barrier", ctx->voidt, NULL, |
| 407 | 0, AC_FUNC_ATTR_CONVERGENT); |
| 408 | } |
| 409 | |
Connor Abbott | ac27fa7 | 2017-06-05 14:16:43 -0700 | [diff] [blame] | 410 | /* Prevent optimizations (at least of memory accesses) across the current |
| 411 | * point in the program by emitting empty inline assembly that is marked as |
| 412 | * having side effects. |
| 413 | * |
| 414 | * Optionally, a value can be passed through the inline assembly to prevent |
| 415 | * LLVM from hoisting calls to ReadNone functions. |
| 416 | */ |
| 417 | void |
| 418 | ac_build_optimization_barrier(struct ac_llvm_context *ctx, |
| 419 | LLVMValueRef *pvgpr) |
| 420 | { |
| 421 | static int counter = 0; |
| 422 | |
| 423 | LLVMBuilderRef builder = ctx->builder; |
| 424 | char code[16]; |
| 425 | |
| 426 | snprintf(code, sizeof(code), "; %d", p_atomic_inc_return(&counter)); |
| 427 | |
| 428 | if (!pvgpr) { |
| 429 | LLVMTypeRef ftype = LLVMFunctionType(ctx->voidt, NULL, 0, false); |
| 430 | LLVMValueRef inlineasm = LLVMConstInlineAsm(ftype, code, "", true, false); |
| 431 | LLVMBuildCall(builder, inlineasm, NULL, 0, ""); |
| 432 | } else { |
| 433 | LLVMTypeRef ftype = LLVMFunctionType(ctx->i32, &ctx->i32, 1, false); |
| 434 | LLVMValueRef inlineasm = LLVMConstInlineAsm(ftype, code, "=v,0", true, false); |
Samuel Pitoiset | 670aa24 | 2019-11-08 17:12:39 +0100 | [diff] [blame] | 435 | LLVMTypeRef type = LLVMTypeOf(*pvgpr); |
| 436 | unsigned bitsize = ac_get_elem_bits(ctx, type); |
Connor Abbott | ac27fa7 | 2017-06-05 14:16:43 -0700 | [diff] [blame] | 437 | LLVMValueRef vgpr = *pvgpr; |
Samuel Pitoiset | 670aa24 | 2019-11-08 17:12:39 +0100 | [diff] [blame] | 438 | LLVMTypeRef vgpr_type; |
| 439 | unsigned vgpr_size; |
Connor Abbott | ac27fa7 | 2017-06-05 14:16:43 -0700 | [diff] [blame] | 440 | LLVMValueRef vgpr0; |
| 441 | |
Samuel Pitoiset | 670aa24 | 2019-11-08 17:12:39 +0100 | [diff] [blame] | 442 | if (bitsize < 32) |
| 443 | vgpr = LLVMBuildZExt(ctx->builder, vgpr, ctx->i32, ""); |
| 444 | |
| 445 | vgpr_type = LLVMTypeOf(vgpr); |
| 446 | vgpr_size = ac_get_type_size(vgpr_type); |
| 447 | |
Connor Abbott | ac27fa7 | 2017-06-05 14:16:43 -0700 | [diff] [blame] | 448 | assert(vgpr_size % 4 == 0); |
| 449 | |
| 450 | vgpr = LLVMBuildBitCast(builder, vgpr, LLVMVectorType(ctx->i32, vgpr_size / 4), ""); |
| 451 | vgpr0 = LLVMBuildExtractElement(builder, vgpr, ctx->i32_0, ""); |
| 452 | vgpr0 = LLVMBuildCall(builder, inlineasm, &vgpr0, 1, ""); |
| 453 | vgpr = LLVMBuildInsertElement(builder, vgpr, vgpr0, ctx->i32_0, ""); |
| 454 | vgpr = LLVMBuildBitCast(builder, vgpr, vgpr_type, ""); |
| 455 | |
Samuel Pitoiset | 670aa24 | 2019-11-08 17:12:39 +0100 | [diff] [blame] | 456 | if (bitsize < 32) |
| 457 | vgpr = LLVMBuildTrunc(builder, vgpr, type, ""); |
| 458 | |
Connor Abbott | ac27fa7 | 2017-06-05 14:16:43 -0700 | [diff] [blame] | 459 | *pvgpr = vgpr; |
| 460 | } |
| 461 | } |
| 462 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 463 | LLVMValueRef |
Timothy Arceri | b7b89bb | 2018-02-02 13:54:48 +1100 | [diff] [blame] | 464 | ac_build_shader_clock(struct ac_llvm_context *ctx) |
| 465 | { |
Eric Engestrom | 19d9e57 | 2019-08-28 00:06:03 +0100 | [diff] [blame] | 466 | const char *intr = LLVM_VERSION_MAJOR >= 9 && ctx->chip_class >= GFX8 ? |
Marek Olšák | 39d0c68 | 2019-07-15 23:42:35 -0400 | [diff] [blame] | 467 | "llvm.amdgcn.s.memrealtime" : "llvm.readcyclecounter"; |
| 468 | LLVMValueRef tmp = ac_build_intrinsic(ctx, intr, ctx->i64, NULL, 0, 0); |
Timothy Arceri | b7b89bb | 2018-02-02 13:54:48 +1100 | [diff] [blame] | 469 | return LLVMBuildBitCast(ctx->builder, tmp, ctx->v2i32, ""); |
| 470 | } |
| 471 | |
| 472 | LLVMValueRef |
Connor Abbott | bd73b89 | 2017-06-05 15:20:04 -0700 | [diff] [blame] | 473 | ac_build_ballot(struct ac_llvm_context *ctx, |
| 474 | LLVMValueRef value) |
| 475 | { |
Marek Olšák | 54e6900 | 2019-07-16 00:55:46 -0400 | [diff] [blame] | 476 | const char *name; |
| 477 | |
Eric Engestrom | 19d9e57 | 2019-08-28 00:06:03 +0100 | [diff] [blame] | 478 | if (LLVM_VERSION_MAJOR >= 9) { |
Marek Olšák | 54e6900 | 2019-07-16 00:55:46 -0400 | [diff] [blame] | 479 | if (ctx->wave_size == 64) |
| 480 | name = "llvm.amdgcn.icmp.i64.i32"; |
| 481 | else |
| 482 | name = "llvm.amdgcn.icmp.i32.i32"; |
| 483 | } else { |
| 484 | name = "llvm.amdgcn.icmp.i32"; |
| 485 | } |
Connor Abbott | bd73b89 | 2017-06-05 15:20:04 -0700 | [diff] [blame] | 486 | LLVMValueRef args[3] = { |
| 487 | value, |
| 488 | ctx->i32_0, |
| 489 | LLVMConstInt(ctx->i32, LLVMIntNE, 0) |
| 490 | }; |
| 491 | |
| 492 | /* We currently have no other way to prevent LLVM from lifting the icmp |
| 493 | * calls to a dominating basic block. |
| 494 | */ |
| 495 | ac_build_optimization_barrier(ctx, &args[0]); |
| 496 | |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 497 | args[0] = ac_to_integer(ctx, args[0]); |
Connor Abbott | bd73b89 | 2017-06-05 15:20:04 -0700 | [diff] [blame] | 498 | |
Marek Olšák | 54e6900 | 2019-07-16 00:55:46 -0400 | [diff] [blame] | 499 | return ac_build_intrinsic(ctx, name, ctx->iN_wavemask, args, 3, |
Connor Abbott | bd73b89 | 2017-06-05 15:20:04 -0700 | [diff] [blame] | 500 | AC_FUNC_ATTR_NOUNWIND | |
| 501 | AC_FUNC_ATTR_READNONE | |
| 502 | AC_FUNC_ATTR_CONVERGENT); |
| 503 | } |
| 504 | |
Marek Olšák | 35cd57d | 2019-02-12 15:00:53 -0500 | [diff] [blame] | 505 | LLVMValueRef ac_get_i1_sgpr_mask(struct ac_llvm_context *ctx, |
| 506 | LLVMValueRef value) |
| 507 | { |
Eric Engestrom | 19d9e57 | 2019-08-28 00:06:03 +0100 | [diff] [blame] | 508 | const char *name = LLVM_VERSION_MAJOR >= 9 ? "llvm.amdgcn.icmp.i64.i1" : "llvm.amdgcn.icmp.i1"; |
Marek Olšák | 35cd57d | 2019-02-12 15:00:53 -0500 | [diff] [blame] | 509 | LLVMValueRef args[3] = { |
| 510 | value, |
| 511 | ctx->i1false, |
| 512 | LLVMConstInt(ctx->i32, LLVMIntNE, 0), |
| 513 | }; |
| 514 | |
Samuel Pitoiset | b5012a0 | 2019-06-14 12:00:26 +0200 | [diff] [blame] | 515 | return ac_build_intrinsic(ctx, name, ctx->i64, args, 3, |
Marek Olšák | 35cd57d | 2019-02-12 15:00:53 -0500 | [diff] [blame] | 516 | AC_FUNC_ATTR_NOUNWIND | |
| 517 | AC_FUNC_ATTR_READNONE | |
| 518 | AC_FUNC_ATTR_CONVERGENT); |
| 519 | } |
| 520 | |
Connor Abbott | bd73b89 | 2017-06-05 15:20:04 -0700 | [diff] [blame] | 521 | LLVMValueRef |
Connor Abbott | b8a51c8 | 2017-06-06 16:40:26 -0700 | [diff] [blame] | 522 | ac_build_vote_all(struct ac_llvm_context *ctx, LLVMValueRef value) |
| 523 | { |
| 524 | LLVMValueRef active_set = ac_build_ballot(ctx, ctx->i32_1); |
| 525 | LLVMValueRef vote_set = ac_build_ballot(ctx, value); |
| 526 | return LLVMBuildICmp(ctx->builder, LLVMIntEQ, vote_set, active_set, ""); |
| 527 | } |
| 528 | |
| 529 | LLVMValueRef |
| 530 | ac_build_vote_any(struct ac_llvm_context *ctx, LLVMValueRef value) |
| 531 | { |
| 532 | LLVMValueRef vote_set = ac_build_ballot(ctx, value); |
| 533 | return LLVMBuildICmp(ctx->builder, LLVMIntNE, vote_set, |
Marek Olšák | 54e6900 | 2019-07-16 00:55:46 -0400 | [diff] [blame] | 534 | LLVMConstInt(ctx->iN_wavemask, 0, 0), ""); |
Connor Abbott | b8a51c8 | 2017-06-06 16:40:26 -0700 | [diff] [blame] | 535 | } |
| 536 | |
| 537 | LLVMValueRef |
| 538 | ac_build_vote_eq(struct ac_llvm_context *ctx, LLVMValueRef value) |
| 539 | { |
| 540 | LLVMValueRef active_set = ac_build_ballot(ctx, ctx->i32_1); |
| 541 | LLVMValueRef vote_set = ac_build_ballot(ctx, value); |
| 542 | |
| 543 | LLVMValueRef all = LLVMBuildICmp(ctx->builder, LLVMIntEQ, |
| 544 | vote_set, active_set, ""); |
| 545 | LLVMValueRef none = LLVMBuildICmp(ctx->builder, LLVMIntEQ, |
| 546 | vote_set, |
Marek Olšák | 54e6900 | 2019-07-16 00:55:46 -0400 | [diff] [blame] | 547 | LLVMConstInt(ctx->iN_wavemask, 0, 0), ""); |
Connor Abbott | b8a51c8 | 2017-06-06 16:40:26 -0700 | [diff] [blame] | 548 | return LLVMBuildOr(ctx->builder, all, none, ""); |
| 549 | } |
| 550 | |
| 551 | LLVMValueRef |
Timothy Arceri | caf15ce | 2017-11-10 13:55:48 +1100 | [diff] [blame] | 552 | ac_build_varying_gather_values(struct ac_llvm_context *ctx, LLVMValueRef *values, |
| 553 | unsigned value_count, unsigned component) |
| 554 | { |
| 555 | LLVMValueRef vec = NULL; |
| 556 | |
| 557 | if (value_count == 1) { |
| 558 | return values[component]; |
| 559 | } else if (!value_count) |
| 560 | unreachable("value_count is 0"); |
| 561 | |
| 562 | for (unsigned i = component; i < value_count + component; i++) { |
| 563 | LLVMValueRef value = values[i]; |
| 564 | |
Timothy Arceri | 5b9362c | 2018-01-19 16:48:43 +1100 | [diff] [blame] | 565 | if (i == component) |
Timothy Arceri | caf15ce | 2017-11-10 13:55:48 +1100 | [diff] [blame] | 566 | vec = LLVMGetUndef( LLVMVectorType(LLVMTypeOf(value), value_count)); |
| 567 | LLVMValueRef index = LLVMConstInt(ctx->i32, i - component, false); |
| 568 | vec = LLVMBuildInsertElement(ctx->builder, vec, value, index, ""); |
| 569 | } |
| 570 | return vec; |
| 571 | } |
| 572 | |
| 573 | LLVMValueRef |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 574 | ac_build_gather_values_extended(struct ac_llvm_context *ctx, |
| 575 | LLVMValueRef *values, |
| 576 | unsigned value_count, |
| 577 | unsigned value_stride, |
Nicolai Hähnle | ac2ab5a | 2017-06-25 13:04:51 +0200 | [diff] [blame] | 578 | bool load, |
| 579 | bool always_vector) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 580 | { |
| 581 | LLVMBuilderRef builder = ctx->builder; |
Marek Olšák | c7878b0 | 2017-02-23 01:34:27 +0100 | [diff] [blame] | 582 | LLVMValueRef vec = NULL; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 583 | unsigned i; |
| 584 | |
Nicolai Hähnle | ac2ab5a | 2017-06-25 13:04:51 +0200 | [diff] [blame] | 585 | if (value_count == 1 && !always_vector) { |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 586 | if (load) |
| 587 | return LLVMBuildLoad(builder, values[0], ""); |
| 588 | return values[0]; |
| 589 | } else if (!value_count) |
| 590 | unreachable("value_count is 0"); |
| 591 | |
| 592 | for (i = 0; i < value_count; i++) { |
| 593 | LLVMValueRef value = values[i * value_stride]; |
| 594 | if (load) |
| 595 | value = LLVMBuildLoad(builder, value, ""); |
| 596 | |
| 597 | if (!i) |
| 598 | vec = LLVMGetUndef( LLVMVectorType(LLVMTypeOf(value), value_count)); |
| 599 | LLVMValueRef index = LLVMConstInt(ctx->i32, i, false); |
| 600 | vec = LLVMBuildInsertElement(builder, vec, value, index, ""); |
| 601 | } |
| 602 | return vec; |
| 603 | } |
| 604 | |
| 605 | LLVMValueRef |
| 606 | ac_build_gather_values(struct ac_llvm_context *ctx, |
| 607 | LLVMValueRef *values, |
| 608 | unsigned value_count) |
| 609 | { |
Nicolai Hähnle | ac2ab5a | 2017-06-25 13:04:51 +0200 | [diff] [blame] | 610 | return ac_build_gather_values_extended(ctx, values, value_count, 1, false, false); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 611 | } |
| 612 | |
Connor Abbott | 59535b0 | 2018-10-18 15:30:11 +0200 | [diff] [blame] | 613 | /* Expand a scalar or vector to <dst_channels x type> by filling the remaining |
| 614 | * channels with undef. Extract at most src_channels components from the input. |
| 615 | */ |
Samuel Pitoiset | 2154fac | 2019-02-12 15:09:29 +0100 | [diff] [blame] | 616 | static LLVMValueRef |
| 617 | ac_build_expand(struct ac_llvm_context *ctx, |
| 618 | LLVMValueRef value, |
| 619 | unsigned src_channels, |
| 620 | unsigned dst_channels) |
Connor Abbott | 59535b0 | 2018-10-18 15:30:11 +0200 | [diff] [blame] | 621 | { |
| 622 | LLVMTypeRef elemtype; |
| 623 | LLVMValueRef chan[dst_channels]; |
| 624 | |
| 625 | if (LLVMGetTypeKind(LLVMTypeOf(value)) == LLVMVectorTypeKind) { |
| 626 | unsigned vec_size = LLVMGetVectorSize(LLVMTypeOf(value)); |
| 627 | |
| 628 | if (src_channels == dst_channels && vec_size == dst_channels) |
| 629 | return value; |
| 630 | |
| 631 | src_channels = MIN2(src_channels, vec_size); |
| 632 | |
| 633 | for (unsigned i = 0; i < src_channels; i++) |
| 634 | chan[i] = ac_llvm_extract_elem(ctx, value, i); |
| 635 | |
| 636 | elemtype = LLVMGetElementType(LLVMTypeOf(value)); |
| 637 | } else { |
| 638 | if (src_channels) { |
| 639 | assert(src_channels == 1); |
| 640 | chan[0] = value; |
| 641 | } |
| 642 | elemtype = LLVMTypeOf(value); |
| 643 | } |
| 644 | |
| 645 | for (unsigned i = src_channels; i < dst_channels; i++) |
| 646 | chan[i] = LLVMGetUndef(elemtype); |
| 647 | |
| 648 | return ac_build_gather_values(ctx, chan, dst_channels); |
| 649 | } |
| 650 | |
Connor Abbott | c550d36 | 2019-08-16 12:46:27 +0200 | [diff] [blame] | 651 | /* Extract components [start, start + channels) from a vector. |
| 652 | */ |
| 653 | LLVMValueRef |
| 654 | ac_extract_components(struct ac_llvm_context *ctx, |
| 655 | LLVMValueRef value, |
| 656 | unsigned start, |
| 657 | unsigned channels) |
| 658 | { |
| 659 | LLVMValueRef chan[channels]; |
| 660 | |
| 661 | for (unsigned i = 0; i < channels; i++) |
| 662 | chan[i] = ac_llvm_extract_elem(ctx, value, i + start); |
| 663 | |
| 664 | return ac_build_gather_values(ctx, chan, channels); |
| 665 | } |
| 666 | |
Marek Olšák | be973ed | 2018-01-30 18:34:25 +0100 | [diff] [blame] | 667 | /* Expand a scalar or vector to <4 x type> by filling the remaining channels |
| 668 | * with undef. Extract at most num_channels components from the input. |
| 669 | */ |
| 670 | LLVMValueRef ac_build_expand_to_vec4(struct ac_llvm_context *ctx, |
| 671 | LLVMValueRef value, |
| 672 | unsigned num_channels) |
| 673 | { |
Connor Abbott | 59535b0 | 2018-10-18 15:30:11 +0200 | [diff] [blame] | 674 | return ac_build_expand(ctx, value, num_channels, 4); |
Marek Olšák | be973ed | 2018-01-30 18:34:25 +0100 | [diff] [blame] | 675 | } |
| 676 | |
Marek Olšák | 77903c8 | 2018-09-21 21:30:09 -0400 | [diff] [blame] | 677 | LLVMValueRef ac_build_round(struct ac_llvm_context *ctx, LLVMValueRef value) |
| 678 | { |
| 679 | unsigned type_size = ac_get_type_size(LLVMTypeOf(value)); |
| 680 | const char *name; |
| 681 | |
| 682 | if (type_size == 2) |
| 683 | name = "llvm.rint.f16"; |
| 684 | else if (type_size == 4) |
| 685 | name = "llvm.rint.f32"; |
| 686 | else |
| 687 | name = "llvm.rint.f64"; |
| 688 | |
| 689 | return ac_build_intrinsic(ctx, name, LLVMTypeOf(value), &value, 1, |
| 690 | AC_FUNC_ATTR_READNONE); |
| 691 | } |
| 692 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 693 | LLVMValueRef |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 694 | ac_build_fdiv(struct ac_llvm_context *ctx, |
| 695 | LLVMValueRef num, |
| 696 | LLVMValueRef den) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 697 | { |
Marek Olšák | a5f35aa | 2018-08-24 23:00:37 -0400 | [diff] [blame] | 698 | /* If we do (num / den), LLVM >= 7.0 does: |
| 699 | * return num * v_rcp_f32(den * (fabs(den) > 0x1.0p+96f ? 0x1.0p-32f : 1.0f)); |
| 700 | * |
| 701 | * If we do (num * (1 / den)), LLVM does: |
| 702 | * return num * v_rcp_f32(den); |
| 703 | */ |
Rhys Perry | 4261edc | 2018-12-06 14:22:17 +0000 | [diff] [blame] | 704 | LLVMValueRef one = LLVMConstReal(LLVMTypeOf(num), 1.0); |
Marek Olšák | 8676af1 | 2018-10-29 17:22:03 -0400 | [diff] [blame] | 705 | LLVMValueRef rcp = LLVMBuildFDiv(ctx->builder, one, den, ""); |
Marek Olšák | a5f35aa | 2018-08-24 23:00:37 -0400 | [diff] [blame] | 706 | LLVMValueRef ret = LLVMBuildFMul(ctx->builder, num, rcp, ""); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 707 | |
Samuel Pitoiset | d43e72f | 2017-12-12 18:10:20 +0100 | [diff] [blame] | 708 | /* Use v_rcp_f32 instead of precise division. */ |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 709 | if (!LLVMIsConstant(ret)) |
| 710 | LLVMSetMetadata(ret, ctx->fpmath_md_kind, ctx->fpmath_md_2p5_ulp); |
| 711 | return ret; |
| 712 | } |
| 713 | |
Marek Olšák | bfc7956 | 2018-09-22 21:17:52 -0400 | [diff] [blame] | 714 | /* See fast_idiv_by_const.h. */ |
| 715 | /* Set: increment = util_fast_udiv_info::increment ? multiplier : 0; */ |
| 716 | LLVMValueRef ac_build_fast_udiv(struct ac_llvm_context *ctx, |
| 717 | LLVMValueRef num, |
| 718 | LLVMValueRef multiplier, |
| 719 | LLVMValueRef pre_shift, |
| 720 | LLVMValueRef post_shift, |
| 721 | LLVMValueRef increment) |
| 722 | { |
| 723 | LLVMBuilderRef builder = ctx->builder; |
| 724 | |
| 725 | num = LLVMBuildLShr(builder, num, pre_shift, ""); |
| 726 | num = LLVMBuildMul(builder, |
| 727 | LLVMBuildZExt(builder, num, ctx->i64, ""), |
| 728 | LLVMBuildZExt(builder, multiplier, ctx->i64, ""), ""); |
| 729 | num = LLVMBuildAdd(builder, num, |
| 730 | LLVMBuildZExt(builder, increment, ctx->i64, ""), ""); |
| 731 | num = LLVMBuildLShr(builder, num, LLVMConstInt(ctx->i64, 32, 0), ""); |
| 732 | num = LLVMBuildTrunc(builder, num, ctx->i32, ""); |
| 733 | return LLVMBuildLShr(builder, num, post_shift, ""); |
| 734 | } |
| 735 | |
| 736 | /* See fast_idiv_by_const.h. */ |
| 737 | /* If num != UINT_MAX, this more efficient version can be used. */ |
| 738 | /* Set: increment = util_fast_udiv_info::increment; */ |
| 739 | LLVMValueRef ac_build_fast_udiv_nuw(struct ac_llvm_context *ctx, |
| 740 | LLVMValueRef num, |
| 741 | LLVMValueRef multiplier, |
| 742 | LLVMValueRef pre_shift, |
| 743 | LLVMValueRef post_shift, |
| 744 | LLVMValueRef increment) |
| 745 | { |
| 746 | LLVMBuilderRef builder = ctx->builder; |
| 747 | |
| 748 | num = LLVMBuildLShr(builder, num, pre_shift, ""); |
| 749 | num = LLVMBuildNUWAdd(builder, num, increment, ""); |
| 750 | num = LLVMBuildMul(builder, |
| 751 | LLVMBuildZExt(builder, num, ctx->i64, ""), |
| 752 | LLVMBuildZExt(builder, multiplier, ctx->i64, ""), ""); |
| 753 | num = LLVMBuildLShr(builder, num, LLVMConstInt(ctx->i64, 32, 0), ""); |
| 754 | num = LLVMBuildTrunc(builder, num, ctx->i32, ""); |
| 755 | return LLVMBuildLShr(builder, num, post_shift, ""); |
| 756 | } |
| 757 | |
| 758 | /* See fast_idiv_by_const.h. */ |
| 759 | /* Both operands must fit in 31 bits and the divisor must not be 1. */ |
| 760 | LLVMValueRef ac_build_fast_udiv_u31_d_not_one(struct ac_llvm_context *ctx, |
| 761 | LLVMValueRef num, |
| 762 | LLVMValueRef multiplier, |
| 763 | LLVMValueRef post_shift) |
| 764 | { |
| 765 | LLVMBuilderRef builder = ctx->builder; |
| 766 | |
| 767 | num = LLVMBuildMul(builder, |
| 768 | LLVMBuildZExt(builder, num, ctx->i64, ""), |
| 769 | LLVMBuildZExt(builder, multiplier, ctx->i64, ""), ""); |
| 770 | num = LLVMBuildLShr(builder, num, LLVMConstInt(ctx->i64, 32, 0), ""); |
| 771 | num = LLVMBuildTrunc(builder, num, ctx->i32, ""); |
| 772 | return LLVMBuildLShr(builder, num, post_shift, ""); |
| 773 | } |
| 774 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 775 | /* Coordinates for cube map selection. sc, tc, and ma are as in Table 8.27 |
| 776 | * of the OpenGL 4.5 (Compatibility Profile) specification, except ma is |
| 777 | * already multiplied by two. id is the cube face number. |
| 778 | */ |
| 779 | struct cube_selection_coords { |
| 780 | LLVMValueRef stc[2]; |
| 781 | LLVMValueRef ma; |
| 782 | LLVMValueRef id; |
| 783 | }; |
| 784 | |
| 785 | static void |
| 786 | build_cube_intrinsic(struct ac_llvm_context *ctx, |
| 787 | LLVMValueRef in[3], |
| 788 | struct cube_selection_coords *out) |
| 789 | { |
Marek Olšák | 12beef0 | 2017-04-25 02:18:10 +0200 | [diff] [blame] | 790 | LLVMTypeRef f32 = ctx->f32; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 791 | |
Marek Olšák | 12beef0 | 2017-04-25 02:18:10 +0200 | [diff] [blame] | 792 | out->stc[1] = ac_build_intrinsic(ctx, "llvm.amdgcn.cubetc", |
| 793 | f32, in, 3, AC_FUNC_ATTR_READNONE); |
| 794 | out->stc[0] = ac_build_intrinsic(ctx, "llvm.amdgcn.cubesc", |
| 795 | f32, in, 3, AC_FUNC_ATTR_READNONE); |
| 796 | out->ma = ac_build_intrinsic(ctx, "llvm.amdgcn.cubema", |
| 797 | f32, in, 3, AC_FUNC_ATTR_READNONE); |
| 798 | out->id = ac_build_intrinsic(ctx, "llvm.amdgcn.cubeid", |
| 799 | f32, in, 3, AC_FUNC_ATTR_READNONE); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 800 | } |
| 801 | |
| 802 | /** |
| 803 | * Build a manual selection sequence for cube face sc/tc coordinates and |
| 804 | * major axis vector (multiplied by 2 for consistency) for the given |
| 805 | * vec3 \p coords, for the face implied by \p selcoords. |
| 806 | * |
| 807 | * For the major axis, we always adjust the sign to be in the direction of |
| 808 | * selcoords.ma; i.e., a positive out_ma means that coords is pointed towards |
| 809 | * the selcoords major axis. |
| 810 | */ |
Nicolai Hähnle | a6ea4c1 | 2017-09-22 19:14:16 +0200 | [diff] [blame] | 811 | static void build_cube_select(struct ac_llvm_context *ctx, |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 812 | const struct cube_selection_coords *selcoords, |
| 813 | const LLVMValueRef *coords, |
| 814 | LLVMValueRef *out_st, |
| 815 | LLVMValueRef *out_ma) |
| 816 | { |
Nicolai Hähnle | a6ea4c1 | 2017-09-22 19:14:16 +0200 | [diff] [blame] | 817 | LLVMBuilderRef builder = ctx->builder; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 818 | LLVMTypeRef f32 = LLVMTypeOf(coords[0]); |
| 819 | LLVMValueRef is_ma_positive; |
| 820 | LLVMValueRef sgn_ma; |
| 821 | LLVMValueRef is_ma_z, is_not_ma_z; |
| 822 | LLVMValueRef is_ma_y; |
| 823 | LLVMValueRef is_ma_x; |
| 824 | LLVMValueRef sgn; |
| 825 | LLVMValueRef tmp; |
| 826 | |
| 827 | is_ma_positive = LLVMBuildFCmp(builder, LLVMRealUGE, |
| 828 | selcoords->ma, LLVMConstReal(f32, 0.0), ""); |
| 829 | sgn_ma = LLVMBuildSelect(builder, is_ma_positive, |
| 830 | LLVMConstReal(f32, 1.0), LLVMConstReal(f32, -1.0), ""); |
| 831 | |
| 832 | is_ma_z = LLVMBuildFCmp(builder, LLVMRealUGE, selcoords->id, LLVMConstReal(f32, 4.0), ""); |
| 833 | is_not_ma_z = LLVMBuildNot(builder, is_ma_z, ""); |
| 834 | is_ma_y = LLVMBuildAnd(builder, is_not_ma_z, |
| 835 | LLVMBuildFCmp(builder, LLVMRealUGE, selcoords->id, LLVMConstReal(f32, 2.0), ""), ""); |
| 836 | is_ma_x = LLVMBuildAnd(builder, is_not_ma_z, LLVMBuildNot(builder, is_ma_y, ""), ""); |
| 837 | |
| 838 | /* Select sc */ |
Nicolai Hähnle | 5be5c1e | 2017-09-22 19:05:52 +0200 | [diff] [blame] | 839 | tmp = LLVMBuildSelect(builder, is_ma_x, coords[2], coords[0], ""); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 840 | sgn = LLVMBuildSelect(builder, is_ma_y, LLVMConstReal(f32, 1.0), |
Nicolai Hähnle | 5be5c1e | 2017-09-22 19:05:52 +0200 | [diff] [blame] | 841 | LLVMBuildSelect(builder, is_ma_z, sgn_ma, |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 842 | LLVMBuildFNeg(builder, sgn_ma, ""), ""), ""); |
| 843 | out_st[0] = LLVMBuildFMul(builder, tmp, sgn, ""); |
| 844 | |
| 845 | /* Select tc */ |
| 846 | tmp = LLVMBuildSelect(builder, is_ma_y, coords[2], coords[1], ""); |
Nicolai Hähnle | 5be5c1e | 2017-09-22 19:05:52 +0200 | [diff] [blame] | 847 | sgn = LLVMBuildSelect(builder, is_ma_y, sgn_ma, |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 848 | LLVMConstReal(f32, -1.0), ""); |
| 849 | out_st[1] = LLVMBuildFMul(builder, tmp, sgn, ""); |
| 850 | |
| 851 | /* Select ma */ |
| 852 | tmp = LLVMBuildSelect(builder, is_ma_z, coords[2], |
| 853 | LLVMBuildSelect(builder, is_ma_y, coords[1], coords[0], ""), ""); |
Nicolai Hähnle | a6ea4c1 | 2017-09-22 19:14:16 +0200 | [diff] [blame] | 854 | tmp = ac_build_intrinsic(ctx, "llvm.fabs.f32", |
| 855 | ctx->f32, &tmp, 1, AC_FUNC_ATTR_READNONE); |
| 856 | *out_ma = LLVMBuildFMul(builder, tmp, LLVMConstReal(f32, 2.0), ""); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 857 | } |
| 858 | |
| 859 | void |
| 860 | ac_prepare_cube_coords(struct ac_llvm_context *ctx, |
Nicolai Hähnle | e0af3be | 2017-09-13 10:47:02 +0200 | [diff] [blame] | 861 | bool is_deriv, bool is_array, bool is_lod, |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 862 | LLVMValueRef *coords_arg, |
| 863 | LLVMValueRef *derivs_arg) |
| 864 | { |
| 865 | |
| 866 | LLVMBuilderRef builder = ctx->builder; |
| 867 | struct cube_selection_coords selcoords; |
| 868 | LLVMValueRef coords[3]; |
| 869 | LLVMValueRef invma; |
| 870 | |
Nicolai Hähnle | e0af3be | 2017-09-13 10:47:02 +0200 | [diff] [blame] | 871 | if (is_array && !is_lod) { |
Marek Olšák | 77903c8 | 2018-09-21 21:30:09 -0400 | [diff] [blame] | 872 | LLVMValueRef tmp = ac_build_round(ctx, coords_arg[3]); |
Nicolai Hähnle | 94736d3 | 2017-09-13 15:33:23 +0200 | [diff] [blame] | 873 | |
| 874 | /* Section 8.9 (Texture Functions) of the GLSL 4.50 spec says: |
| 875 | * |
| 876 | * "For Array forms, the array layer used will be |
| 877 | * |
| 878 | * max(0, min(d−1, floor(layer+0.5))) |
| 879 | * |
| 880 | * where d is the depth of the texture array and layer |
| 881 | * comes from the component indicated in the tables below. |
| 882 | * Workaroudn for an issue where the layer is taken from a |
| 883 | * helper invocation which happens to fall on a different |
| 884 | * layer due to extrapolation." |
| 885 | * |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 886 | * GFX8 and earlier attempt to implement this in hardware by |
Nicolai Hähnle | 94736d3 | 2017-09-13 15:33:23 +0200 | [diff] [blame] | 887 | * clamping the value of coords[2] = (8 * layer) + face. |
| 888 | * Unfortunately, this means that the we end up with the wrong |
| 889 | * face when clamping occurs. |
| 890 | * |
| 891 | * Clamp the layer earlier to work around the issue. |
| 892 | */ |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 893 | if (ctx->chip_class <= GFX8) { |
Nicolai Hähnle | 94736d3 | 2017-09-13 15:33:23 +0200 | [diff] [blame] | 894 | LLVMValueRef ge0; |
| 895 | ge0 = LLVMBuildFCmp(builder, LLVMRealOGE, tmp, ctx->f32_0, ""); |
| 896 | tmp = LLVMBuildSelect(builder, ge0, tmp, ctx->f32_0, ""); |
| 897 | } |
| 898 | |
| 899 | coords_arg[3] = tmp; |
Nicolai Hähnle | e0af3be | 2017-09-13 10:47:02 +0200 | [diff] [blame] | 900 | } |
| 901 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 902 | build_cube_intrinsic(ctx, coords_arg, &selcoords); |
| 903 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 904 | invma = ac_build_intrinsic(ctx, "llvm.fabs.f32", |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 905 | ctx->f32, &selcoords.ma, 1, AC_FUNC_ATTR_READNONE); |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 906 | invma = ac_build_fdiv(ctx, LLVMConstReal(ctx->f32, 1.0), invma); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 907 | |
| 908 | for (int i = 0; i < 2; ++i) |
| 909 | coords[i] = LLVMBuildFMul(builder, selcoords.stc[i], invma, ""); |
| 910 | |
| 911 | coords[2] = selcoords.id; |
| 912 | |
| 913 | if (is_deriv && derivs_arg) { |
| 914 | LLVMValueRef derivs[4]; |
| 915 | int axis; |
| 916 | |
| 917 | /* Convert cube derivatives to 2D derivatives. */ |
| 918 | for (axis = 0; axis < 2; axis++) { |
| 919 | LLVMValueRef deriv_st[2]; |
| 920 | LLVMValueRef deriv_ma; |
| 921 | |
| 922 | /* Transform the derivative alongside the texture |
| 923 | * coordinate. Mathematically, the correct formula is |
| 924 | * as follows. Assume we're projecting onto the +Z face |
| 925 | * and denote by dx/dh the derivative of the (original) |
| 926 | * X texture coordinate with respect to horizontal |
| 927 | * window coordinates. The projection onto the +Z face |
| 928 | * plane is: |
| 929 | * |
| 930 | * f(x,z) = x/z |
| 931 | * |
| 932 | * Then df/dh = df/dx * dx/dh + df/dz * dz/dh |
| 933 | * = 1/z * dx/dh - x/z * 1/z * dz/dh. |
| 934 | * |
| 935 | * This motivatives the implementation below. |
| 936 | * |
| 937 | * Whether this actually gives the expected results for |
| 938 | * apps that might feed in derivatives obtained via |
| 939 | * finite differences is anyone's guess. The OpenGL spec |
| 940 | * seems awfully quiet about how textureGrad for cube |
| 941 | * maps should be handled. |
| 942 | */ |
Nicolai Hähnle | a6ea4c1 | 2017-09-22 19:14:16 +0200 | [diff] [blame] | 943 | build_cube_select(ctx, &selcoords, &derivs_arg[axis * 3], |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 944 | deriv_st, &deriv_ma); |
| 945 | |
| 946 | deriv_ma = LLVMBuildFMul(builder, deriv_ma, invma, ""); |
| 947 | |
| 948 | for (int i = 0; i < 2; ++i) |
| 949 | derivs[axis * 2 + i] = |
| 950 | LLVMBuildFSub(builder, |
| 951 | LLVMBuildFMul(builder, deriv_st[i], invma, ""), |
| 952 | LLVMBuildFMul(builder, deriv_ma, coords[i], ""), ""); |
| 953 | } |
| 954 | |
| 955 | memcpy(derivs_arg, derivs, sizeof(derivs)); |
| 956 | } |
| 957 | |
| 958 | /* Shift the texture coordinate. This must be applied after the |
| 959 | * derivative calculation. |
| 960 | */ |
| 961 | for (int i = 0; i < 2; ++i) |
| 962 | coords[i] = LLVMBuildFAdd(builder, coords[i], LLVMConstReal(ctx->f32, 1.5), ""); |
| 963 | |
| 964 | if (is_array) { |
| 965 | /* for cube arrays coord.z = coord.w(array_index) * 8 + face */ |
| 966 | /* coords_arg.w component - array_index for cube arrays */ |
Marek Olšák | 60beac9 | 2018-08-15 20:50:03 -0400 | [diff] [blame] | 967 | coords[2] = ac_build_fmad(ctx, coords_arg[3], LLVMConstReal(ctx->f32, 8.0), coords[2]); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 968 | } |
| 969 | |
| 970 | memcpy(coords_arg, coords, sizeof(coords)); |
| 971 | } |
| 972 | |
| 973 | |
| 974 | LLVMValueRef |
| 975 | ac_build_fs_interp(struct ac_llvm_context *ctx, |
| 976 | LLVMValueRef llvm_chan, |
| 977 | LLVMValueRef attr_number, |
| 978 | LLVMValueRef params, |
| 979 | LLVMValueRef i, |
| 980 | LLVMValueRef j) |
| 981 | { |
| 982 | LLVMValueRef args[5]; |
| 983 | LLVMValueRef p1; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 984 | |
| 985 | args[0] = i; |
| 986 | args[1] = llvm_chan; |
| 987 | args[2] = attr_number; |
| 988 | args[3] = params; |
| 989 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 990 | p1 = ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p1", |
| 991 | ctx->f32, args, 4, AC_FUNC_ATTR_READNONE); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 992 | |
| 993 | args[0] = p1; |
| 994 | args[1] = j; |
| 995 | args[2] = llvm_chan; |
| 996 | args[3] = attr_number; |
| 997 | args[4] = params; |
| 998 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 999 | return ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p2", |
| 1000 | ctx->f32, args, 5, AC_FUNC_ATTR_READNONE); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1001 | } |
| 1002 | |
| 1003 | LLVMValueRef |
Bas Nieuwenhuizen | a1fdd4a | 2019-02-22 14:16:08 +0100 | [diff] [blame] | 1004 | ac_build_fs_interp_f16(struct ac_llvm_context *ctx, |
| 1005 | LLVMValueRef llvm_chan, |
| 1006 | LLVMValueRef attr_number, |
| 1007 | LLVMValueRef params, |
| 1008 | LLVMValueRef i, |
| 1009 | LLVMValueRef j) |
| 1010 | { |
| 1011 | LLVMValueRef args[6]; |
| 1012 | LLVMValueRef p1; |
| 1013 | |
| 1014 | args[0] = i; |
| 1015 | args[1] = llvm_chan; |
| 1016 | args[2] = attr_number; |
| 1017 | args[3] = ctx->i1false; |
| 1018 | args[4] = params; |
| 1019 | |
| 1020 | p1 = ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p1.f16", |
| 1021 | ctx->f32, args, 5, AC_FUNC_ATTR_READNONE); |
| 1022 | |
| 1023 | args[0] = p1; |
| 1024 | args[1] = j; |
| 1025 | args[2] = llvm_chan; |
| 1026 | args[3] = attr_number; |
| 1027 | args[4] = ctx->i1false; |
| 1028 | args[5] = params; |
| 1029 | |
| 1030 | return ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p2.f16", |
| 1031 | ctx->f16, args, 6, AC_FUNC_ATTR_READNONE); |
| 1032 | } |
| 1033 | |
| 1034 | LLVMValueRef |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1035 | ac_build_fs_interp_mov(struct ac_llvm_context *ctx, |
| 1036 | LLVMValueRef parameter, |
| 1037 | LLVMValueRef llvm_chan, |
| 1038 | LLVMValueRef attr_number, |
| 1039 | LLVMValueRef params) |
| 1040 | { |
| 1041 | LLVMValueRef args[4]; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1042 | |
| 1043 | args[0] = parameter; |
| 1044 | args[1] = llvm_chan; |
| 1045 | args[2] = attr_number; |
| 1046 | args[3] = params; |
| 1047 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 1048 | return ac_build_intrinsic(ctx, "llvm.amdgcn.interp.mov", |
| 1049 | ctx->f32, args, 4, AC_FUNC_ATTR_READNONE); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1050 | } |
| 1051 | |
| 1052 | LLVMValueRef |
Bas Nieuwenhuizen | e00d9a9 | 2019-01-23 01:53:59 +0100 | [diff] [blame] | 1053 | ac_build_gep_ptr(struct ac_llvm_context *ctx, |
| 1054 | LLVMValueRef base_ptr, |
| 1055 | LLVMValueRef index) |
| 1056 | { |
| 1057 | return LLVMBuildGEP(ctx->builder, base_ptr, &index, 1, ""); |
| 1058 | } |
| 1059 | |
| 1060 | LLVMValueRef |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1061 | ac_build_gep0(struct ac_llvm_context *ctx, |
| 1062 | LLVMValueRef base_ptr, |
| 1063 | LLVMValueRef index) |
| 1064 | { |
| 1065 | LLVMValueRef indices[2] = { |
Marek Olšák | cc36ebb | 2018-08-29 00:15:16 -0400 | [diff] [blame] | 1066 | ctx->i32_0, |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1067 | index, |
| 1068 | }; |
Marek Olšák | cc36ebb | 2018-08-29 00:15:16 -0400 | [diff] [blame] | 1069 | return LLVMBuildGEP(ctx->builder, base_ptr, indices, 2, ""); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1070 | } |
| 1071 | |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1072 | LLVMValueRef ac_build_pointer_add(struct ac_llvm_context *ctx, LLVMValueRef ptr, |
| 1073 | LLVMValueRef index) |
| 1074 | { |
| 1075 | return LLVMBuildPointerCast(ctx->builder, |
Marek Olšák | 6b0b8f1 | 2019-05-09 20:58:21 -0400 | [diff] [blame] | 1076 | LLVMBuildGEP(ctx->builder, ptr, &index, 1, ""), |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1077 | LLVMTypeOf(ptr), ""); |
| 1078 | } |
| 1079 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1080 | void |
| 1081 | ac_build_indexed_store(struct ac_llvm_context *ctx, |
| 1082 | LLVMValueRef base_ptr, LLVMValueRef index, |
| 1083 | LLVMValueRef value) |
| 1084 | { |
| 1085 | LLVMBuildStore(ctx->builder, value, |
| 1086 | ac_build_gep0(ctx, base_ptr, index)); |
| 1087 | } |
| 1088 | |
| 1089 | /** |
| 1090 | * Build an LLVM bytecode indexed load using LLVMBuildGEP + LLVMBuildLoad. |
| 1091 | * It's equivalent to doing a load from &base_ptr[index]. |
| 1092 | * |
| 1093 | * \param base_ptr Where the array starts. |
| 1094 | * \param index The element index into the array. |
| 1095 | * \param uniform Whether the base_ptr and index can be assumed to be |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1096 | * dynamically uniform (i.e. load to an SGPR) |
| 1097 | * \param invariant Whether the load is invariant (no other opcodes affect it) |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1098 | * \param no_unsigned_wraparound |
| 1099 | * For all possible re-associations and re-distributions of an expression |
| 1100 | * "base_ptr + index * elemsize" into "addr + offset" (excluding GEPs |
| 1101 | * without inbounds in base_ptr), this parameter is true if "addr + offset" |
| 1102 | * does not result in an unsigned integer wraparound. This is used for |
| 1103 | * optimal code generation of 32-bit pointer arithmetic. |
| 1104 | * |
| 1105 | * For example, a 32-bit immediate offset that causes a 32-bit unsigned |
| 1106 | * integer wraparound can't be an imm offset in s_load_dword, because |
| 1107 | * the instruction performs "addr + offset" in 64 bits. |
| 1108 | * |
| 1109 | * Expected usage for bindless textures by chaining GEPs: |
| 1110 | * // possible unsigned wraparound, don't use InBounds: |
| 1111 | * ptr1 = LLVMBuildGEP(base_ptr, index); |
| 1112 | * image = load(ptr1); // becomes "s_load ptr1, 0" |
| 1113 | * |
| 1114 | * ptr2 = LLVMBuildInBoundsGEP(ptr1, 32 / elemsize); |
| 1115 | * sampler = load(ptr2); // becomes "s_load ptr1, 32" thanks to InBounds |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1116 | */ |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1117 | static LLVMValueRef |
| 1118 | ac_build_load_custom(struct ac_llvm_context *ctx, LLVMValueRef base_ptr, |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1119 | LLVMValueRef index, bool uniform, bool invariant, |
| 1120 | bool no_unsigned_wraparound) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1121 | { |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1122 | LLVMValueRef pointer, result; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1123 | |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1124 | if (no_unsigned_wraparound && |
Marek Olšák | a668c8d | 2018-09-07 18:44:54 -0400 | [diff] [blame] | 1125 | LLVMGetPointerAddressSpace(LLVMTypeOf(base_ptr)) == AC_ADDR_SPACE_CONST_32BIT) |
Marek Olšák | 6b0b8f1 | 2019-05-09 20:58:21 -0400 | [diff] [blame] | 1126 | pointer = LLVMBuildInBoundsGEP(ctx->builder, base_ptr, &index, 1, ""); |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1127 | else |
Marek Olšák | 6b0b8f1 | 2019-05-09 20:58:21 -0400 | [diff] [blame] | 1128 | pointer = LLVMBuildGEP(ctx->builder, base_ptr, &index, 1, ""); |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1129 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1130 | if (uniform) |
| 1131 | LLVMSetMetadata(pointer, ctx->uniform_md_kind, ctx->empty_md); |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1132 | result = LLVMBuildLoad(ctx->builder, pointer, ""); |
| 1133 | if (invariant) |
| 1134 | LLVMSetMetadata(result, ctx->invariant_load_md_kind, ctx->empty_md); |
| 1135 | return result; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1136 | } |
| 1137 | |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1138 | LLVMValueRef ac_build_load(struct ac_llvm_context *ctx, LLVMValueRef base_ptr, |
| 1139 | LLVMValueRef index) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1140 | { |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1141 | return ac_build_load_custom(ctx, base_ptr, index, false, false, false); |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1142 | } |
| 1143 | |
| 1144 | LLVMValueRef ac_build_load_invariant(struct ac_llvm_context *ctx, |
| 1145 | LLVMValueRef base_ptr, LLVMValueRef index) |
| 1146 | { |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1147 | return ac_build_load_custom(ctx, base_ptr, index, false, true, false); |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1148 | } |
| 1149 | |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1150 | /* This assumes that there is no unsigned integer wraparound during the address |
| 1151 | * computation, excluding all GEPs within base_ptr. */ |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1152 | LLVMValueRef ac_build_load_to_sgpr(struct ac_llvm_context *ctx, |
| 1153 | LLVMValueRef base_ptr, LLVMValueRef index) |
| 1154 | { |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1155 | return ac_build_load_custom(ctx, base_ptr, index, true, true, true); |
| 1156 | } |
| 1157 | |
| 1158 | /* See ac_build_load_custom() documentation. */ |
| 1159 | LLVMValueRef ac_build_load_to_sgpr_uint_wraparound(struct ac_llvm_context *ctx, |
| 1160 | LLVMValueRef base_ptr, LLVMValueRef index) |
| 1161 | { |
| 1162 | return ac_build_load_custom(ctx, base_ptr, index, true, true, false); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1163 | } |
| 1164 | |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1165 | static unsigned get_load_cache_policy(struct ac_llvm_context *ctx, |
| 1166 | unsigned cache_policy) |
Marek Olšák | 4bdf447 | 2019-05-24 18:48:39 -0400 | [diff] [blame] | 1167 | { |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1168 | return cache_policy | |
| 1169 | (ctx->chip_class >= GFX10 && cache_policy & ac_glc ? ac_dlc : 0); |
Marek Olšák | 4bdf447 | 2019-05-24 18:48:39 -0400 | [diff] [blame] | 1170 | } |
| 1171 | |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1172 | static void |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1173 | ac_build_buffer_store_common(struct ac_llvm_context *ctx, |
| 1174 | LLVMValueRef rsrc, |
| 1175 | LLVMValueRef data, |
| 1176 | LLVMValueRef vindex, |
| 1177 | LLVMValueRef voffset, |
| 1178 | LLVMValueRef soffset, |
| 1179 | unsigned num_channels, |
| 1180 | LLVMTypeRef return_channel_type, |
| 1181 | unsigned cache_policy, |
| 1182 | bool use_format, |
| 1183 | bool structurized) |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1184 | { |
| 1185 | LLVMValueRef args[6]; |
| 1186 | int idx = 0; |
| 1187 | args[idx++] = data; |
| 1188 | args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, ""); |
| 1189 | if (structurized) |
| 1190 | args[idx++] = vindex ? vindex : ctx->i32_0; |
| 1191 | args[idx++] = voffset ? voffset : ctx->i32_0; |
| 1192 | args[idx++] = soffset ? soffset : ctx->i32_0; |
Marek Olšák | a29e781 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1193 | args[idx++] = LLVMConstInt(ctx->i32, cache_policy, 0); |
Samuel Pitoiset | 33f4e04 | 2019-06-03 15:09:38 +0200 | [diff] [blame] | 1194 | unsigned func = !ac_has_vec3_support(ctx->chip_class, use_format) && num_channels == 3 ? 4 : num_channels; |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1195 | const char *indexing_kind = structurized ? "struct" : "raw"; |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1196 | char name[256], type_name[8]; |
| 1197 | |
| 1198 | LLVMTypeRef type = func > 1 ? LLVMVectorType(return_channel_type, func) : return_channel_type; |
| 1199 | ac_build_type_name_for_intr(type, type_name, sizeof(type_name)); |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1200 | |
| 1201 | if (use_format) { |
| 1202 | snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.store.format.%s", |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1203 | indexing_kind, type_name); |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1204 | } else { |
| 1205 | snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.store.%s", |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1206 | indexing_kind, type_name); |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1207 | } |
| 1208 | |
| 1209 | ac_build_intrinsic(ctx, name, ctx->voidt, args, idx, |
Connor Abbott | 3bf8981 | 2019-05-31 19:04:36 +0200 | [diff] [blame] | 1210 | AC_FUNC_ATTR_INACCESSIBLE_MEM_ONLY); |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1211 | } |
| 1212 | |
| 1213 | void |
| 1214 | ac_build_buffer_store_format(struct ac_llvm_context *ctx, |
| 1215 | LLVMValueRef rsrc, |
| 1216 | LLVMValueRef data, |
| 1217 | LLVMValueRef vindex, |
| 1218 | LLVMValueRef voffset, |
| 1219 | unsigned num_channels, |
Marek Olšák | a29e781 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1220 | unsigned cache_policy) |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1221 | { |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1222 | ac_build_buffer_store_common(ctx, rsrc, data, vindex, |
| 1223 | voffset, NULL, num_channels, |
| 1224 | ctx->f32, cache_policy, |
| 1225 | true, true); |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1226 | } |
| 1227 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1228 | /* TBUFFER_STORE_FORMAT_{X,XY,XYZ,XYZW} <- the suffix is selected by num_channels=1..4. |
| 1229 | * The type of vdata must be one of i32 (num_channels=1), v2i32 (num_channels=2), |
| 1230 | * or v4i32 (num_channels=3,4). |
| 1231 | */ |
| 1232 | void |
Marek Olšák | 27439df | 2017-02-24 01:20:35 +0100 | [diff] [blame] | 1233 | ac_build_buffer_store_dword(struct ac_llvm_context *ctx, |
| 1234 | LLVMValueRef rsrc, |
| 1235 | LLVMValueRef vdata, |
| 1236 | unsigned num_channels, |
Marek Olšák | 8cfdbba | 2017-02-24 20:23:23 +0100 | [diff] [blame] | 1237 | LLVMValueRef voffset, |
Marek Olšák | 27439df | 2017-02-24 01:20:35 +0100 | [diff] [blame] | 1238 | LLVMValueRef soffset, |
| 1239 | unsigned inst_offset, |
Marek Olšák | f671cc4 | 2019-11-22 17:41:22 -0500 | [diff] [blame] | 1240 | unsigned cache_policy) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1241 | { |
Samuel Pitoiset | 6970a9a | 2019-05-02 16:15:03 +0200 | [diff] [blame] | 1242 | /* Split 3 channel stores, because only LLVM 9+ support 3-channel |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1243 | * intrinsics. */ |
Samuel Pitoiset | 33f4e04 | 2019-06-03 15:09:38 +0200 | [diff] [blame] | 1244 | if (num_channels == 3 && !ac_has_vec3_support(ctx->chip_class, false)) { |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1245 | LLVMValueRef v[3], v01; |
| 1246 | |
| 1247 | for (int i = 0; i < 3; i++) { |
| 1248 | v[i] = LLVMBuildExtractElement(ctx->builder, vdata, |
| 1249 | LLVMConstInt(ctx->i32, i, 0), ""); |
| 1250 | } |
| 1251 | v01 = ac_build_gather_values(ctx, v, 2); |
| 1252 | |
| 1253 | ac_build_buffer_store_dword(ctx, rsrc, v01, 2, voffset, |
Marek Olšák | f671cc4 | 2019-11-22 17:41:22 -0500 | [diff] [blame] | 1254 | soffset, inst_offset, cache_policy); |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1255 | ac_build_buffer_store_dword(ctx, rsrc, v[2], 1, voffset, |
| 1256 | soffset, inst_offset + 8, |
Marek Olšák | f671cc4 | 2019-11-22 17:41:22 -0500 | [diff] [blame] | 1257 | cache_policy); |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1258 | return; |
| 1259 | } |
Dave Airlie | eba4cf7 | 2018-05-16 09:36:22 +1000 | [diff] [blame] | 1260 | |
Marek Olšák | bcd3e76 | 2017-09-30 15:36:18 +0200 | [diff] [blame] | 1261 | /* SWIZZLE_ENABLE requires that soffset isn't folded into voffset |
| 1262 | * (voffset is swizzled, but soffset isn't swizzled). |
| 1263 | * llvm.amdgcn.buffer.store doesn't have a separate soffset parameter. |
| 1264 | */ |
Marek Olšák | f671cc4 | 2019-11-22 17:41:22 -0500 | [diff] [blame] | 1265 | if (!(cache_policy & ac_swizzled)) { |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1266 | LLVMValueRef offset = soffset; |
Marek Olšák | 97e21cf | 2017-02-24 02:09:47 +0100 | [diff] [blame] | 1267 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1268 | if (inst_offset) |
| 1269 | offset = LLVMBuildAdd(ctx->builder, offset, |
| 1270 | LLVMConstInt(ctx->i32, inst_offset, 0), ""); |
Marek Olšák | 97e21cf | 2017-02-24 02:09:47 +0100 | [diff] [blame] | 1271 | |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1272 | ac_build_buffer_store_common(ctx, rsrc, ac_to_float(ctx, vdata), |
| 1273 | ctx->i32_0, voffset, offset, |
| 1274 | num_channels, ctx->f32, |
| 1275 | cache_policy, false, false); |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1276 | return; |
Marek Olšák | 97e21cf | 2017-02-24 02:09:47 +0100 | [diff] [blame] | 1277 | } |
| 1278 | |
Samuel Pitoiset | 72e366b | 2019-03-12 14:07:16 +0100 | [diff] [blame] | 1279 | static const unsigned dfmts[] = { |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1280 | V_008F0C_BUF_DATA_FORMAT_32, |
| 1281 | V_008F0C_BUF_DATA_FORMAT_32_32, |
| 1282 | V_008F0C_BUF_DATA_FORMAT_32_32_32, |
| 1283 | V_008F0C_BUF_DATA_FORMAT_32_32_32_32 |
| 1284 | }; |
Samuel Pitoiset | 72e366b | 2019-03-12 14:07:16 +0100 | [diff] [blame] | 1285 | unsigned dfmt = dfmts[num_channels - 1]; |
| 1286 | unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT; |
| 1287 | LLVMValueRef immoffset = LLVMConstInt(ctx->i32, inst_offset, 0); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1288 | |
Samuel Pitoiset | 72e366b | 2019-03-12 14:07:16 +0100 | [diff] [blame] | 1289 | ac_build_raw_tbuffer_store(ctx, rsrc, vdata, voffset, soffset, |
Marek Olšák | a29e781 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1290 | immoffset, num_channels, dfmt, nfmt, cache_policy); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1291 | } |
| 1292 | |
Samuel Pitoiset | d7c93b5 | 2018-01-10 20:12:09 +0100 | [diff] [blame] | 1293 | static LLVMValueRef |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1294 | ac_build_buffer_load_common(struct ac_llvm_context *ctx, |
| 1295 | LLVMValueRef rsrc, |
| 1296 | LLVMValueRef vindex, |
| 1297 | LLVMValueRef voffset, |
| 1298 | LLVMValueRef soffset, |
| 1299 | unsigned num_channels, |
| 1300 | LLVMTypeRef channel_type, |
| 1301 | unsigned cache_policy, |
| 1302 | bool can_speculate, |
| 1303 | bool use_format, |
| 1304 | bool structurized) |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1305 | { |
| 1306 | LLVMValueRef args[5]; |
| 1307 | int idx = 0; |
| 1308 | args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, ""); |
| 1309 | if (structurized) |
| 1310 | args[idx++] = vindex ? vindex : ctx->i32_0; |
| 1311 | args[idx++] = voffset ? voffset : ctx->i32_0; |
| 1312 | args[idx++] = soffset ? soffset : ctx->i32_0; |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1313 | args[idx++] = LLVMConstInt(ctx->i32, get_load_cache_policy(ctx, cache_policy), 0); |
Samuel Pitoiset | 33f4e04 | 2019-06-03 15:09:38 +0200 | [diff] [blame] | 1314 | unsigned func = !ac_has_vec3_support(ctx->chip_class, use_format) && num_channels == 3 ? 4 : num_channels; |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1315 | const char *indexing_kind = structurized ? "struct" : "raw"; |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1316 | char name[256], type_name[8]; |
| 1317 | |
| 1318 | LLVMTypeRef type = func > 1 ? LLVMVectorType(channel_type, func) : channel_type; |
| 1319 | ac_build_type_name_for_intr(type, type_name, sizeof(type_name)); |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1320 | |
| 1321 | if (use_format) { |
| 1322 | snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.load.format.%s", |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1323 | indexing_kind, type_name); |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1324 | } else { |
| 1325 | snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.load.%s", |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1326 | indexing_kind, type_name); |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1327 | } |
| 1328 | |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1329 | return ac_build_intrinsic(ctx, name, type, args, idx, |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1330 | ac_get_load_intr_attribs(can_speculate)); |
| 1331 | } |
| 1332 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1333 | LLVMValueRef |
| 1334 | ac_build_buffer_load(struct ac_llvm_context *ctx, |
| 1335 | LLVMValueRef rsrc, |
| 1336 | int num_channels, |
| 1337 | LLVMValueRef vindex, |
| 1338 | LLVMValueRef voffset, |
| 1339 | LLVMValueRef soffset, |
| 1340 | unsigned inst_offset, |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1341 | unsigned cache_policy, |
Marek Olšák | e019ea8 | 2017-05-19 15:02:34 +0200 | [diff] [blame] | 1342 | bool can_speculate, |
| 1343 | bool allow_smem) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1344 | { |
Marek Olšák | e019ea8 | 2017-05-19 15:02:34 +0200 | [diff] [blame] | 1345 | LLVMValueRef offset = LLVMConstInt(ctx->i32, inst_offset, 0); |
| 1346 | if (voffset) |
| 1347 | offset = LLVMBuildAdd(ctx->builder, offset, voffset, ""); |
| 1348 | if (soffset) |
| 1349 | offset = LLVMBuildAdd(ctx->builder, offset, soffset, ""); |
| 1350 | |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1351 | if (allow_smem && !(cache_policy & ac_slc) && |
Samuel Pitoiset | 1fd60db | 2019-08-01 11:18:43 +0200 | [diff] [blame] | 1352 | (!(cache_policy & ac_glc) || ctx->chip_class >= GFX8)) { |
Marek Olšák | e019ea8 | 2017-05-19 15:02:34 +0200 | [diff] [blame] | 1353 | assert(vindex == NULL); |
| 1354 | |
Dave Airlie | 16dd0eb | 2018-01-30 13:58:05 +1000 | [diff] [blame] | 1355 | LLVMValueRef result[8]; |
Marek Olšák | e019ea8 | 2017-05-19 15:02:34 +0200 | [diff] [blame] | 1356 | |
| 1357 | for (int i = 0; i < num_channels; i++) { |
| 1358 | if (i) { |
| 1359 | offset = LLVMBuildAdd(ctx->builder, offset, |
| 1360 | LLVMConstInt(ctx->i32, 4, 0), ""); |
| 1361 | } |
Nicolai Hähnle | 7fbd48f | 2019-01-10 23:21:46 +0100 | [diff] [blame] | 1362 | LLVMValueRef args[3] = { |
| 1363 | rsrc, |
| 1364 | offset, |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1365 | LLVMConstInt(ctx->i32, get_load_cache_policy(ctx, cache_policy), 0), |
Nicolai Hähnle | 7fbd48f | 2019-01-10 23:21:46 +0100 | [diff] [blame] | 1366 | }; |
Samuel Pitoiset | 1fd60db | 2019-08-01 11:18:43 +0200 | [diff] [blame] | 1367 | result[i] = ac_build_intrinsic(ctx, |
| 1368 | "llvm.amdgcn.s.buffer.load.f32", |
| 1369 | ctx->f32, args, 3, |
| 1370 | AC_FUNC_ATTR_READNONE); |
Marek Olšák | e019ea8 | 2017-05-19 15:02:34 +0200 | [diff] [blame] | 1371 | } |
| 1372 | if (num_channels == 1) |
| 1373 | return result[0]; |
| 1374 | |
Samuel Pitoiset | 33f4e04 | 2019-06-03 15:09:38 +0200 | [diff] [blame] | 1375 | if (num_channels == 3 && !ac_has_vec3_support(ctx->chip_class, false)) |
Marek Olšák | e019ea8 | 2017-05-19 15:02:34 +0200 | [diff] [blame] | 1376 | result[num_channels++] = LLVMGetUndef(ctx->f32); |
| 1377 | return ac_build_gather_values(ctx, result, num_channels); |
| 1378 | } |
| 1379 | |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1380 | return ac_build_buffer_load_common(ctx, rsrc, vindex, |
| 1381 | offset, ctx->i32_0, |
| 1382 | num_channels, ctx->f32, |
| 1383 | cache_policy, |
| 1384 | can_speculate, false, false); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1385 | } |
| 1386 | |
Marek Olšák | 94811dc | 2017-02-25 23:40:52 +0100 | [diff] [blame] | 1387 | LLVMValueRef ac_build_buffer_load_format(struct ac_llvm_context *ctx, |
| 1388 | LLVMValueRef rsrc, |
| 1389 | LLVMValueRef vindex, |
| 1390 | LLVMValueRef voffset, |
Samuel Pitoiset | 51e14bc | 2018-01-10 20:12:10 +0100 | [diff] [blame] | 1391 | unsigned num_channels, |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1392 | unsigned cache_policy, |
Marek Olšák | e1942c9 | 2017-05-25 16:13:54 +0200 | [diff] [blame] | 1393 | bool can_speculate) |
Marek Olšák | 94811dc | 2017-02-25 23:40:52 +0100 | [diff] [blame] | 1394 | { |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1395 | return ac_build_buffer_load_common(ctx, rsrc, vindex, voffset, |
| 1396 | ctx->i32_0, num_channels, ctx->f32, |
| 1397 | cache_policy, can_speculate, |
| 1398 | true, true); |
Bas Nieuwenhuizen | 4503ff7 | 2018-03-28 23:54:40 +0200 | [diff] [blame] | 1399 | } |
| 1400 | |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1401 | static LLVMValueRef |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1402 | ac_build_tbuffer_load(struct ac_llvm_context *ctx, |
Samuel Pitoiset | f022314 | 2019-02-14 14:42:29 +0100 | [diff] [blame] | 1403 | LLVMValueRef rsrc, |
| 1404 | LLVMValueRef vindex, |
| 1405 | LLVMValueRef voffset, |
| 1406 | LLVMValueRef soffset, |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1407 | LLVMValueRef immoffset, |
Samuel Pitoiset | f022314 | 2019-02-14 14:42:29 +0100 | [diff] [blame] | 1408 | unsigned num_channels, |
| 1409 | unsigned dfmt, |
| 1410 | unsigned nfmt, |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1411 | unsigned cache_policy, |
Samuel Pitoiset | f022314 | 2019-02-14 14:42:29 +0100 | [diff] [blame] | 1412 | bool can_speculate, |
| 1413 | bool structurized) |
| 1414 | { |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1415 | voffset = LLVMBuildAdd(ctx->builder, voffset, immoffset, ""); |
| 1416 | |
Samuel Pitoiset | f022314 | 2019-02-14 14:42:29 +0100 | [diff] [blame] | 1417 | LLVMValueRef args[6]; |
| 1418 | int idx = 0; |
| 1419 | args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, ""); |
| 1420 | if (structurized) |
| 1421 | args[idx++] = vindex ? vindex : ctx->i32_0; |
| 1422 | args[idx++] = voffset ? voffset : ctx->i32_0; |
| 1423 | args[idx++] = soffset ? soffset : ctx->i32_0; |
Timur Kristóf | db1fddc | 2019-09-25 14:10:18 +0200 | [diff] [blame] | 1424 | args[idx++] = LLVMConstInt(ctx->i32, ac_get_tbuffer_format(ctx->chip_class, dfmt, nfmt), 0); |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1425 | args[idx++] = LLVMConstInt(ctx->i32, get_load_cache_policy(ctx, cache_policy), 0); |
Samuel Pitoiset | 33f4e04 | 2019-06-03 15:09:38 +0200 | [diff] [blame] | 1426 | unsigned func = !ac_has_vec3_support(ctx->chip_class, true) && num_channels == 3 ? 4 : num_channels; |
Samuel Pitoiset | f022314 | 2019-02-14 14:42:29 +0100 | [diff] [blame] | 1427 | const char *indexing_kind = structurized ? "struct" : "raw"; |
Samuel Pitoiset | 492e828 | 2019-04-26 12:49:15 +0200 | [diff] [blame] | 1428 | char name[256], type_name[8]; |
| 1429 | |
| 1430 | LLVMTypeRef type = func > 1 ? LLVMVectorType(ctx->i32, func) : ctx->i32; |
| 1431 | ac_build_type_name_for_intr(type, type_name, sizeof(type_name)); |
Samuel Pitoiset | f022314 | 2019-02-14 14:42:29 +0100 | [diff] [blame] | 1432 | |
| 1433 | snprintf(name, sizeof(name), "llvm.amdgcn.%s.tbuffer.load.%s", |
Samuel Pitoiset | 492e828 | 2019-04-26 12:49:15 +0200 | [diff] [blame] | 1434 | indexing_kind, type_name); |
Samuel Pitoiset | f022314 | 2019-02-14 14:42:29 +0100 | [diff] [blame] | 1435 | |
Samuel Pitoiset | 492e828 | 2019-04-26 12:49:15 +0200 | [diff] [blame] | 1436 | return ac_build_intrinsic(ctx, name, type, args, idx, |
Samuel Pitoiset | f022314 | 2019-02-14 14:42:29 +0100 | [diff] [blame] | 1437 | ac_get_load_intr_attribs(can_speculate)); |
| 1438 | } |
| 1439 | |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1440 | LLVMValueRef |
Samuel Pitoiset | 045fae0 | 2019-03-13 14:04:13 +0100 | [diff] [blame] | 1441 | ac_build_struct_tbuffer_load(struct ac_llvm_context *ctx, |
| 1442 | LLVMValueRef rsrc, |
| 1443 | LLVMValueRef vindex, |
| 1444 | LLVMValueRef voffset, |
| 1445 | LLVMValueRef soffset, |
| 1446 | LLVMValueRef immoffset, |
| 1447 | unsigned num_channels, |
| 1448 | unsigned dfmt, |
| 1449 | unsigned nfmt, |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1450 | unsigned cache_policy, |
Samuel Pitoiset | 045fae0 | 2019-03-13 14:04:13 +0100 | [diff] [blame] | 1451 | bool can_speculate) |
| 1452 | { |
| 1453 | return ac_build_tbuffer_load(ctx, rsrc, vindex, voffset, soffset, |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1454 | immoffset, num_channels, dfmt, nfmt, |
| 1455 | cache_policy, can_speculate, true); |
Samuel Pitoiset | 045fae0 | 2019-03-13 14:04:13 +0100 | [diff] [blame] | 1456 | } |
| 1457 | |
| 1458 | LLVMValueRef |
| 1459 | ac_build_raw_tbuffer_load(struct ac_llvm_context *ctx, |
| 1460 | LLVMValueRef rsrc, |
| 1461 | LLVMValueRef voffset, |
| 1462 | LLVMValueRef soffset, |
| 1463 | LLVMValueRef immoffset, |
| 1464 | unsigned num_channels, |
| 1465 | unsigned dfmt, |
| 1466 | unsigned nfmt, |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1467 | unsigned cache_policy, |
Samuel Pitoiset | 045fae0 | 2019-03-13 14:04:13 +0100 | [diff] [blame] | 1468 | bool can_speculate) |
| 1469 | { |
| 1470 | return ac_build_tbuffer_load(ctx, rsrc, NULL, voffset, soffset, |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1471 | immoffset, num_channels, dfmt, nfmt, |
| 1472 | cache_policy, can_speculate, false); |
Samuel Pitoiset | 045fae0 | 2019-03-13 14:04:13 +0100 | [diff] [blame] | 1473 | } |
| 1474 | |
| 1475 | LLVMValueRef |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1476 | ac_build_tbuffer_load_short(struct ac_llvm_context *ctx, |
| 1477 | LLVMValueRef rsrc, |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1478 | LLVMValueRef voffset, |
| 1479 | LLVMValueRef soffset, |
| 1480 | LLVMValueRef immoffset, |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1481 | unsigned cache_policy) |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1482 | { |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1483 | LLVMValueRef res; |
| 1484 | |
Eric Engestrom | 19d9e57 | 2019-08-28 00:06:03 +0100 | [diff] [blame] | 1485 | if (LLVM_VERSION_MAJOR >= 9) { |
Samuel Pitoiset | 26ea506 | 2019-03-26 12:24:52 +0100 | [diff] [blame] | 1486 | voffset = LLVMBuildAdd(ctx->builder, voffset, immoffset, ""); |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1487 | |
Samuel Pitoiset | 26ea506 | 2019-03-26 12:24:52 +0100 | [diff] [blame] | 1488 | /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */ |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1489 | res = ac_build_buffer_load_common(ctx, rsrc, NULL, |
| 1490 | voffset, soffset, |
| 1491 | 1, ctx->i16, cache_policy, |
| 1492 | false, false, false); |
Samuel Pitoiset | 26ea506 | 2019-03-26 12:24:52 +0100 | [diff] [blame] | 1493 | } else { |
| 1494 | unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_16; |
| 1495 | unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT; |
| 1496 | |
| 1497 | res = ac_build_raw_tbuffer_load(ctx, rsrc, voffset, soffset, |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1498 | immoffset, 1, dfmt, nfmt, cache_policy, |
Samuel Pitoiset | 26ea506 | 2019-03-26 12:24:52 +0100 | [diff] [blame] | 1499 | false); |
| 1500 | |
| 1501 | res = LLVMBuildTrunc(ctx->builder, res, ctx->i16, ""); |
| 1502 | } |
| 1503 | |
| 1504 | return res; |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1505 | } |
| 1506 | |
Samuel Pitoiset | 104dbc6 | 2019-03-13 15:55:42 +0100 | [diff] [blame] | 1507 | LLVMValueRef |
| 1508 | ac_build_tbuffer_load_byte(struct ac_llvm_context *ctx, |
| 1509 | LLVMValueRef rsrc, |
| 1510 | LLVMValueRef voffset, |
| 1511 | LLVMValueRef soffset, |
| 1512 | LLVMValueRef immoffset, |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1513 | unsigned cache_policy) |
Samuel Pitoiset | 104dbc6 | 2019-03-13 15:55:42 +0100 | [diff] [blame] | 1514 | { |
Samuel Pitoiset | 104dbc6 | 2019-03-13 15:55:42 +0100 | [diff] [blame] | 1515 | LLVMValueRef res; |
| 1516 | |
Eric Engestrom | 19d9e57 | 2019-08-28 00:06:03 +0100 | [diff] [blame] | 1517 | if (LLVM_VERSION_MAJOR >= 9) { |
Samuel Pitoiset | 26ea506 | 2019-03-26 12:24:52 +0100 | [diff] [blame] | 1518 | voffset = LLVMBuildAdd(ctx->builder, voffset, immoffset, ""); |
Samuel Pitoiset | 104dbc6 | 2019-03-13 15:55:42 +0100 | [diff] [blame] | 1519 | |
Samuel Pitoiset | 26ea506 | 2019-03-26 12:24:52 +0100 | [diff] [blame] | 1520 | /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */ |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1521 | res = ac_build_buffer_load_common(ctx, rsrc, NULL, |
| 1522 | voffset, soffset, |
| 1523 | 1, ctx->i8, cache_policy, |
| 1524 | false, false, false); |
Samuel Pitoiset | 26ea506 | 2019-03-26 12:24:52 +0100 | [diff] [blame] | 1525 | } else { |
| 1526 | unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_8; |
| 1527 | unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT; |
| 1528 | |
| 1529 | res = ac_build_raw_tbuffer_load(ctx, rsrc, voffset, soffset, |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1530 | immoffset, 1, dfmt, nfmt, cache_policy, |
Samuel Pitoiset | 26ea506 | 2019-03-26 12:24:52 +0100 | [diff] [blame] | 1531 | false); |
| 1532 | |
| 1533 | res = LLVMBuildTrunc(ctx->builder, res, ctx->i8, ""); |
| 1534 | } |
| 1535 | |
| 1536 | return res; |
Samuel Pitoiset | 104dbc6 | 2019-03-13 15:55:42 +0100 | [diff] [blame] | 1537 | } |
Nicolai Hähnle | 81fe337 | 2019-03-29 23:03:51 +0100 | [diff] [blame] | 1538 | |
| 1539 | /** |
| 1540 | * Convert an 11- or 10-bit unsigned floating point number to an f32. |
| 1541 | * |
| 1542 | * The input exponent is expected to be biased analogous to IEEE-754, i.e. by |
| 1543 | * 2^(exp_bits-1) - 1 (as defined in OpenGL and other graphics APIs). |
| 1544 | */ |
| 1545 | static LLVMValueRef |
| 1546 | ac_ufN_to_float(struct ac_llvm_context *ctx, LLVMValueRef src, unsigned exp_bits, unsigned mant_bits) |
| 1547 | { |
| 1548 | assert(LLVMTypeOf(src) == ctx->i32); |
| 1549 | |
| 1550 | LLVMValueRef tmp; |
| 1551 | LLVMValueRef mantissa; |
| 1552 | mantissa = LLVMBuildAnd(ctx->builder, src, LLVMConstInt(ctx->i32, (1 << mant_bits) - 1, false), ""); |
| 1553 | |
| 1554 | /* Converting normal numbers is just a shift + correcting the exponent bias */ |
| 1555 | unsigned normal_shift = 23 - mant_bits; |
| 1556 | unsigned bias_shift = 127 - ((1 << (exp_bits - 1)) - 1); |
| 1557 | LLVMValueRef shifted, normal; |
| 1558 | |
| 1559 | shifted = LLVMBuildShl(ctx->builder, src, LLVMConstInt(ctx->i32, normal_shift, false), ""); |
| 1560 | normal = LLVMBuildAdd(ctx->builder, shifted, LLVMConstInt(ctx->i32, bias_shift << 23, false), ""); |
| 1561 | |
| 1562 | /* Converting nan/inf numbers is the same, but with a different exponent update */ |
| 1563 | LLVMValueRef naninf; |
| 1564 | naninf = LLVMBuildOr(ctx->builder, normal, LLVMConstInt(ctx->i32, 0xff << 23, false), ""); |
| 1565 | |
| 1566 | /* Converting denormals is the complex case: determine the leading zeros of the |
| 1567 | * mantissa to obtain the correct shift for the mantissa and exponent correction. |
| 1568 | */ |
| 1569 | LLVMValueRef denormal; |
| 1570 | LLVMValueRef params[2] = { |
| 1571 | mantissa, |
| 1572 | ctx->i1true, /* result can be undef when arg is 0 */ |
| 1573 | }; |
| 1574 | LLVMValueRef ctlz = ac_build_intrinsic(ctx, "llvm.ctlz.i32", ctx->i32, |
| 1575 | params, 2, AC_FUNC_ATTR_READNONE); |
| 1576 | |
| 1577 | /* Shift such that the leading 1 ends up as the LSB of the exponent field. */ |
| 1578 | tmp = LLVMBuildSub(ctx->builder, ctlz, LLVMConstInt(ctx->i32, 8, false), ""); |
| 1579 | denormal = LLVMBuildShl(ctx->builder, mantissa, tmp, ""); |
| 1580 | |
| 1581 | unsigned denormal_exp = bias_shift + (32 - mant_bits) - 1; |
| 1582 | tmp = LLVMBuildSub(ctx->builder, LLVMConstInt(ctx->i32, denormal_exp, false), ctlz, ""); |
| 1583 | tmp = LLVMBuildShl(ctx->builder, tmp, LLVMConstInt(ctx->i32, 23, false), ""); |
| 1584 | denormal = LLVMBuildAdd(ctx->builder, denormal, tmp, ""); |
| 1585 | |
| 1586 | /* Select the final result. */ |
| 1587 | LLVMValueRef result; |
| 1588 | |
| 1589 | tmp = LLVMBuildICmp(ctx->builder, LLVMIntUGE, src, |
| 1590 | LLVMConstInt(ctx->i32, ((1 << exp_bits) - 1) << mant_bits, false), ""); |
| 1591 | result = LLVMBuildSelect(ctx->builder, tmp, naninf, normal, ""); |
| 1592 | |
| 1593 | tmp = LLVMBuildICmp(ctx->builder, LLVMIntUGE, src, |
| 1594 | LLVMConstInt(ctx->i32, 1 << mant_bits, false), ""); |
| 1595 | result = LLVMBuildSelect(ctx->builder, tmp, result, denormal, ""); |
| 1596 | |
| 1597 | tmp = LLVMBuildICmp(ctx->builder, LLVMIntNE, src, ctx->i32_0, ""); |
| 1598 | result = LLVMBuildSelect(ctx->builder, tmp, result, ctx->i32_0, ""); |
| 1599 | |
| 1600 | return ac_to_float(ctx, result); |
| 1601 | } |
| 1602 | |
| 1603 | /** |
| 1604 | * Generate a fully general open coded buffer format fetch with all required |
| 1605 | * fixups suitable for vertex fetch, using non-format buffer loads. |
| 1606 | * |
| 1607 | * Some combinations of argument values have special interpretations: |
| 1608 | * - size = 8 bytes, format = fixed indicates PIPE_FORMAT_R11G11B10_FLOAT |
| 1609 | * - size = 8 bytes, format != {float,fixed} indicates a 2_10_10_10 data format |
| 1610 | * |
| 1611 | * \param log_size log(size of channel in bytes) |
| 1612 | * \param num_channels number of channels (1 to 4) |
| 1613 | * \param format AC_FETCH_FORMAT_xxx value |
| 1614 | * \param reverse whether XYZ channels are reversed |
| 1615 | * \param known_aligned whether the source is known to be aligned to hardware's |
| 1616 | * effective element size for loading the given format |
| 1617 | * (note: this means dword alignment for 8_8_8_8, 16_16, etc.) |
| 1618 | * \param rsrc buffer resource descriptor |
| 1619 | * \return the resulting vector of floats or integers bitcast to <4 x i32> |
| 1620 | */ |
| 1621 | LLVMValueRef |
| 1622 | ac_build_opencoded_load_format(struct ac_llvm_context *ctx, |
| 1623 | unsigned log_size, |
| 1624 | unsigned num_channels, |
| 1625 | unsigned format, |
| 1626 | bool reverse, |
| 1627 | bool known_aligned, |
| 1628 | LLVMValueRef rsrc, |
| 1629 | LLVMValueRef vindex, |
| 1630 | LLVMValueRef voffset, |
| 1631 | LLVMValueRef soffset, |
Marek Olšák | 8a71f60 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1632 | unsigned cache_policy, |
Nicolai Hähnle | 81fe337 | 2019-03-29 23:03:51 +0100 | [diff] [blame] | 1633 | bool can_speculate) |
| 1634 | { |
| 1635 | LLVMValueRef tmp; |
| 1636 | unsigned load_log_size = log_size; |
| 1637 | unsigned load_num_channels = num_channels; |
| 1638 | if (log_size == 3) { |
| 1639 | load_log_size = 2; |
| 1640 | if (format == AC_FETCH_FORMAT_FLOAT) { |
| 1641 | load_num_channels = 2 * num_channels; |
| 1642 | } else { |
| 1643 | load_num_channels = 1; /* 10_11_11 or 2_10_10_10 */ |
| 1644 | } |
| 1645 | } |
| 1646 | |
| 1647 | int log_recombine = 0; |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 1648 | if (ctx->chip_class == GFX6 && !known_aligned) { |
Nicolai Hähnle | 81fe337 | 2019-03-29 23:03:51 +0100 | [diff] [blame] | 1649 | /* Avoid alignment restrictions by loading one byte at a time. */ |
| 1650 | load_num_channels <<= load_log_size; |
| 1651 | log_recombine = load_log_size; |
| 1652 | load_log_size = 0; |
| 1653 | } else if (load_num_channels == 2 || load_num_channels == 4) { |
| 1654 | log_recombine = -util_logbase2(load_num_channels); |
| 1655 | load_num_channels = 1; |
| 1656 | load_log_size += -log_recombine; |
| 1657 | } |
| 1658 | |
Eric Engestrom | 19d9e57 | 2019-08-28 00:06:03 +0100 | [diff] [blame] | 1659 | assert(load_log_size >= 2 || LLVM_VERSION_MAJOR >= 9); |
Nicolai Hähnle | 81fe337 | 2019-03-29 23:03:51 +0100 | [diff] [blame] | 1660 | |
| 1661 | LLVMValueRef loads[32]; /* up to 32 bytes */ |
| 1662 | for (unsigned i = 0; i < load_num_channels; ++i) { |
| 1663 | tmp = LLVMBuildAdd(ctx->builder, soffset, |
| 1664 | LLVMConstInt(ctx->i32, i << load_log_size, false), ""); |
Samuel Pitoiset | 1fd60db | 2019-08-01 11:18:43 +0200 | [diff] [blame] | 1665 | LLVMTypeRef channel_type = load_log_size == 0 ? ctx->i8 : |
| 1666 | load_log_size == 1 ? ctx->i16 : ctx->i32; |
| 1667 | unsigned num_channels = 1 << (MAX2(load_log_size, 2) - 2); |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1668 | loads[i] = ac_build_buffer_load_common( |
Samuel Pitoiset | 1fd60db | 2019-08-01 11:18:43 +0200 | [diff] [blame] | 1669 | ctx, rsrc, vindex, voffset, tmp, |
| 1670 | num_channels, channel_type, cache_policy, |
| 1671 | can_speculate, false, true); |
Nicolai Hähnle | 81fe337 | 2019-03-29 23:03:51 +0100 | [diff] [blame] | 1672 | if (load_log_size >= 2) |
| 1673 | loads[i] = ac_to_integer(ctx, loads[i]); |
| 1674 | } |
| 1675 | |
| 1676 | if (log_recombine > 0) { |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 1677 | /* Recombine bytes if necessary (GFX6 only) */ |
Nicolai Hähnle | 81fe337 | 2019-03-29 23:03:51 +0100 | [diff] [blame] | 1678 | LLVMTypeRef dst_type = log_recombine == 2 ? ctx->i32 : ctx->i16; |
| 1679 | |
| 1680 | for (unsigned src = 0, dst = 0; src < load_num_channels; ++dst) { |
| 1681 | LLVMValueRef accum = NULL; |
| 1682 | for (unsigned i = 0; i < (1 << log_recombine); ++i, ++src) { |
| 1683 | tmp = LLVMBuildZExt(ctx->builder, loads[src], dst_type, ""); |
| 1684 | if (i == 0) { |
| 1685 | accum = tmp; |
| 1686 | } else { |
| 1687 | tmp = LLVMBuildShl(ctx->builder, tmp, |
| 1688 | LLVMConstInt(dst_type, 8 * i, false), ""); |
| 1689 | accum = LLVMBuildOr(ctx->builder, accum, tmp, ""); |
| 1690 | } |
| 1691 | } |
| 1692 | loads[dst] = accum; |
| 1693 | } |
| 1694 | } else if (log_recombine < 0) { |
| 1695 | /* Split vectors of dwords */ |
| 1696 | if (load_log_size > 2) { |
| 1697 | assert(load_num_channels == 1); |
| 1698 | LLVMValueRef loaded = loads[0]; |
| 1699 | unsigned log_split = load_log_size - 2; |
| 1700 | log_recombine += log_split; |
| 1701 | load_num_channels = 1 << log_split; |
| 1702 | load_log_size = 2; |
| 1703 | for (unsigned i = 0; i < load_num_channels; ++i) { |
| 1704 | tmp = LLVMConstInt(ctx->i32, i, false); |
| 1705 | loads[i] = LLVMBuildExtractElement(ctx->builder, loaded, tmp, ""); |
| 1706 | } |
| 1707 | } |
| 1708 | |
| 1709 | /* Further split dwords and shorts if required */ |
| 1710 | if (log_recombine < 0) { |
| 1711 | for (unsigned src = load_num_channels, |
| 1712 | dst = load_num_channels << -log_recombine; |
| 1713 | src > 0; --src) { |
| 1714 | unsigned dst_bits = 1 << (3 + load_log_size + log_recombine); |
| 1715 | LLVMTypeRef dst_type = LLVMIntTypeInContext(ctx->context, dst_bits); |
| 1716 | LLVMValueRef loaded = loads[src - 1]; |
| 1717 | LLVMTypeRef loaded_type = LLVMTypeOf(loaded); |
| 1718 | for (unsigned i = 1 << -log_recombine; i > 0; --i, --dst) { |
| 1719 | tmp = LLVMConstInt(loaded_type, dst_bits * (i - 1), false); |
| 1720 | tmp = LLVMBuildLShr(ctx->builder, loaded, tmp, ""); |
| 1721 | loads[dst - 1] = LLVMBuildTrunc(ctx->builder, tmp, dst_type, ""); |
| 1722 | } |
| 1723 | } |
| 1724 | } |
| 1725 | } |
| 1726 | |
| 1727 | if (log_size == 3) { |
| 1728 | if (format == AC_FETCH_FORMAT_FLOAT) { |
| 1729 | for (unsigned i = 0; i < num_channels; ++i) { |
| 1730 | tmp = ac_build_gather_values(ctx, &loads[2 * i], 2); |
| 1731 | loads[i] = LLVMBuildBitCast(ctx->builder, tmp, ctx->f64, ""); |
| 1732 | } |
| 1733 | } else if (format == AC_FETCH_FORMAT_FIXED) { |
| 1734 | /* 10_11_11_FLOAT */ |
| 1735 | LLVMValueRef data = loads[0]; |
| 1736 | LLVMValueRef i32_2047 = LLVMConstInt(ctx->i32, 2047, false); |
| 1737 | LLVMValueRef r = LLVMBuildAnd(ctx->builder, data, i32_2047, ""); |
| 1738 | tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 11, false), ""); |
| 1739 | LLVMValueRef g = LLVMBuildAnd(ctx->builder, tmp, i32_2047, ""); |
| 1740 | LLVMValueRef b = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 22, false), ""); |
| 1741 | |
| 1742 | loads[0] = ac_to_integer(ctx, ac_ufN_to_float(ctx, r, 5, 6)); |
| 1743 | loads[1] = ac_to_integer(ctx, ac_ufN_to_float(ctx, g, 5, 6)); |
| 1744 | loads[2] = ac_to_integer(ctx, ac_ufN_to_float(ctx, b, 5, 5)); |
| 1745 | |
| 1746 | num_channels = 3; |
| 1747 | log_size = 2; |
| 1748 | format = AC_FETCH_FORMAT_FLOAT; |
| 1749 | } else { |
| 1750 | /* 2_10_10_10 data formats */ |
| 1751 | LLVMValueRef data = loads[0]; |
| 1752 | LLVMTypeRef i10 = LLVMIntTypeInContext(ctx->context, 10); |
| 1753 | LLVMTypeRef i2 = LLVMIntTypeInContext(ctx->context, 2); |
| 1754 | loads[0] = LLVMBuildTrunc(ctx->builder, data, i10, ""); |
| 1755 | tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 10, false), ""); |
| 1756 | loads[1] = LLVMBuildTrunc(ctx->builder, tmp, i10, ""); |
| 1757 | tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 20, false), ""); |
| 1758 | loads[2] = LLVMBuildTrunc(ctx->builder, tmp, i10, ""); |
| 1759 | tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 30, false), ""); |
| 1760 | loads[3] = LLVMBuildTrunc(ctx->builder, tmp, i2, ""); |
| 1761 | |
| 1762 | num_channels = 4; |
| 1763 | } |
| 1764 | } |
| 1765 | |
| 1766 | if (format == AC_FETCH_FORMAT_FLOAT) { |
| 1767 | if (log_size != 2) { |
| 1768 | for (unsigned chan = 0; chan < num_channels; ++chan) { |
| 1769 | tmp = ac_to_float(ctx, loads[chan]); |
| 1770 | if (log_size == 3) |
| 1771 | tmp = LLVMBuildFPTrunc(ctx->builder, tmp, ctx->f32, ""); |
| 1772 | else if (log_size == 1) |
| 1773 | tmp = LLVMBuildFPExt(ctx->builder, tmp, ctx->f32, ""); |
| 1774 | loads[chan] = ac_to_integer(ctx, tmp); |
| 1775 | } |
| 1776 | } |
| 1777 | } else if (format == AC_FETCH_FORMAT_UINT) { |
| 1778 | if (log_size != 2) { |
| 1779 | for (unsigned chan = 0; chan < num_channels; ++chan) |
| 1780 | loads[chan] = LLVMBuildZExt(ctx->builder, loads[chan], ctx->i32, ""); |
| 1781 | } |
| 1782 | } else if (format == AC_FETCH_FORMAT_SINT) { |
| 1783 | if (log_size != 2) { |
| 1784 | for (unsigned chan = 0; chan < num_channels; ++chan) |
| 1785 | loads[chan] = LLVMBuildSExt(ctx->builder, loads[chan], ctx->i32, ""); |
| 1786 | } |
| 1787 | } else { |
| 1788 | bool unsign = format == AC_FETCH_FORMAT_UNORM || |
| 1789 | format == AC_FETCH_FORMAT_USCALED || |
| 1790 | format == AC_FETCH_FORMAT_UINT; |
| 1791 | |
| 1792 | for (unsigned chan = 0; chan < num_channels; ++chan) { |
| 1793 | if (unsign) { |
| 1794 | tmp = LLVMBuildUIToFP(ctx->builder, loads[chan], ctx->f32, ""); |
| 1795 | } else { |
| 1796 | tmp = LLVMBuildSIToFP(ctx->builder, loads[chan], ctx->f32, ""); |
| 1797 | } |
| 1798 | |
| 1799 | LLVMValueRef scale = NULL; |
| 1800 | if (format == AC_FETCH_FORMAT_FIXED) { |
| 1801 | assert(log_size == 2); |
| 1802 | scale = LLVMConstReal(ctx->f32, 1.0 / 0x10000); |
| 1803 | } else if (format == AC_FETCH_FORMAT_UNORM) { |
| 1804 | unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(loads[chan])); |
| 1805 | scale = LLVMConstReal(ctx->f32, 1.0 / (((uint64_t)1 << bits) - 1)); |
| 1806 | } else if (format == AC_FETCH_FORMAT_SNORM) { |
| 1807 | unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(loads[chan])); |
| 1808 | scale = LLVMConstReal(ctx->f32, 1.0 / (((uint64_t)1 << (bits - 1)) - 1)); |
| 1809 | } |
| 1810 | if (scale) |
| 1811 | tmp = LLVMBuildFMul(ctx->builder, tmp, scale, ""); |
| 1812 | |
| 1813 | if (format == AC_FETCH_FORMAT_SNORM) { |
| 1814 | /* Clamp to [-1, 1] */ |
| 1815 | LLVMValueRef neg_one = LLVMConstReal(ctx->f32, -1.0); |
| 1816 | LLVMValueRef clamp = |
| 1817 | LLVMBuildFCmp(ctx->builder, LLVMRealULT, tmp, neg_one, ""); |
| 1818 | tmp = LLVMBuildSelect(ctx->builder, clamp, neg_one, tmp, ""); |
| 1819 | } |
| 1820 | |
| 1821 | loads[chan] = ac_to_integer(ctx, tmp); |
| 1822 | } |
| 1823 | } |
| 1824 | |
| 1825 | while (num_channels < 4) { |
| 1826 | if (format == AC_FETCH_FORMAT_UINT || format == AC_FETCH_FORMAT_SINT) { |
| 1827 | loads[num_channels] = num_channels == 3 ? ctx->i32_1 : ctx->i32_0; |
| 1828 | } else { |
| 1829 | loads[num_channels] = ac_to_integer(ctx, num_channels == 3 ? ctx->f32_1 : ctx->f32_0); |
| 1830 | } |
| 1831 | num_channels++; |
| 1832 | } |
| 1833 | |
| 1834 | if (reverse) { |
| 1835 | tmp = loads[0]; |
| 1836 | loads[0] = loads[2]; |
| 1837 | loads[2] = tmp; |
| 1838 | } |
| 1839 | |
| 1840 | return ac_build_gather_values(ctx, loads, 4); |
| 1841 | } |
| 1842 | |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 1843 | static void |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1844 | ac_build_tbuffer_store(struct ac_llvm_context *ctx, |
| 1845 | LLVMValueRef rsrc, |
| 1846 | LLVMValueRef vdata, |
| 1847 | LLVMValueRef vindex, |
| 1848 | LLVMValueRef voffset, |
| 1849 | LLVMValueRef soffset, |
| 1850 | LLVMValueRef immoffset, |
| 1851 | unsigned num_channels, |
| 1852 | unsigned dfmt, |
| 1853 | unsigned nfmt, |
| 1854 | unsigned cache_policy, |
| 1855 | bool structurized) |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 1856 | { |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1857 | voffset = LLVMBuildAdd(ctx->builder, voffset ? voffset : ctx->i32_0, |
| 1858 | immoffset, ""); |
| 1859 | |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 1860 | LLVMValueRef args[7]; |
| 1861 | int idx = 0; |
| 1862 | args[idx++] = vdata; |
| 1863 | args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, ""); |
| 1864 | if (structurized) |
| 1865 | args[idx++] = vindex ? vindex : ctx->i32_0; |
| 1866 | args[idx++] = voffset ? voffset : ctx->i32_0; |
| 1867 | args[idx++] = soffset ? soffset : ctx->i32_0; |
Timur Kristóf | db1fddc | 2019-09-25 14:10:18 +0200 | [diff] [blame] | 1868 | args[idx++] = LLVMConstInt(ctx->i32, ac_get_tbuffer_format(ctx->chip_class, dfmt, nfmt), 0); |
Marek Olšák | a29e781 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1869 | args[idx++] = LLVMConstInt(ctx->i32, cache_policy, 0); |
Samuel Pitoiset | 33f4e04 | 2019-06-03 15:09:38 +0200 | [diff] [blame] | 1870 | unsigned func = !ac_has_vec3_support(ctx->chip_class, true) && num_channels == 3 ? 4 : num_channels; |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 1871 | const char *indexing_kind = structurized ? "struct" : "raw"; |
Samuel Pitoiset | 492e828 | 2019-04-26 12:49:15 +0200 | [diff] [blame] | 1872 | char name[256], type_name[8]; |
| 1873 | |
| 1874 | LLVMTypeRef type = func > 1 ? LLVMVectorType(ctx->i32, func) : ctx->i32; |
| 1875 | ac_build_type_name_for_intr(type, type_name, sizeof(type_name)); |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 1876 | |
| 1877 | snprintf(name, sizeof(name), "llvm.amdgcn.%s.tbuffer.store.%s", |
Samuel Pitoiset | 492e828 | 2019-04-26 12:49:15 +0200 | [diff] [blame] | 1878 | indexing_kind, type_name); |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 1879 | |
| 1880 | ac_build_intrinsic(ctx, name, ctx->voidt, args, idx, |
Connor Abbott | 3bf8981 | 2019-05-31 19:04:36 +0200 | [diff] [blame] | 1881 | AC_FUNC_ATTR_INACCESSIBLE_MEM_ONLY); |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 1882 | } |
| 1883 | |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 1884 | void |
| 1885 | ac_build_struct_tbuffer_store(struct ac_llvm_context *ctx, |
| 1886 | LLVMValueRef rsrc, |
| 1887 | LLVMValueRef vdata, |
| 1888 | LLVMValueRef vindex, |
| 1889 | LLVMValueRef voffset, |
| 1890 | LLVMValueRef soffset, |
| 1891 | LLVMValueRef immoffset, |
| 1892 | unsigned num_channels, |
| 1893 | unsigned dfmt, |
| 1894 | unsigned nfmt, |
Marek Olšák | a29e781 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1895 | unsigned cache_policy) |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 1896 | { |
| 1897 | ac_build_tbuffer_store(ctx, rsrc, vdata, vindex, voffset, soffset, |
Marek Olšák | a29e781 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1898 | immoffset, num_channels, dfmt, nfmt, cache_policy, |
Connor Abbott | 3bf8981 | 2019-05-31 19:04:36 +0200 | [diff] [blame] | 1899 | true); |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 1900 | } |
| 1901 | |
| 1902 | void |
| 1903 | ac_build_raw_tbuffer_store(struct ac_llvm_context *ctx, |
| 1904 | LLVMValueRef rsrc, |
| 1905 | LLVMValueRef vdata, |
| 1906 | LLVMValueRef voffset, |
| 1907 | LLVMValueRef soffset, |
| 1908 | LLVMValueRef immoffset, |
| 1909 | unsigned num_channels, |
| 1910 | unsigned dfmt, |
| 1911 | unsigned nfmt, |
Marek Olšák | a29e781 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1912 | unsigned cache_policy) |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 1913 | { |
| 1914 | ac_build_tbuffer_store(ctx, rsrc, vdata, NULL, voffset, soffset, |
Marek Olšák | a29e781 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1915 | immoffset, num_channels, dfmt, nfmt, cache_policy, |
Connor Abbott | 3bf8981 | 2019-05-31 19:04:36 +0200 | [diff] [blame] | 1916 | false); |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 1917 | } |
| 1918 | |
Samuel Pitoiset | 9d960c1 | 2019-03-13 14:52:27 +0100 | [diff] [blame] | 1919 | void |
| 1920 | ac_build_tbuffer_store_short(struct ac_llvm_context *ctx, |
| 1921 | LLVMValueRef rsrc, |
| 1922 | LLVMValueRef vdata, |
| 1923 | LLVMValueRef voffset, |
| 1924 | LLVMValueRef soffset, |
Marek Olšák | a29e781 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1925 | unsigned cache_policy) |
Samuel Pitoiset | 9d960c1 | 2019-03-13 14:52:27 +0100 | [diff] [blame] | 1926 | { |
Samuel Pitoiset | 9d960c1 | 2019-03-13 14:52:27 +0100 | [diff] [blame] | 1927 | vdata = LLVMBuildBitCast(ctx->builder, vdata, ctx->i16, ""); |
Samuel Pitoiset | 9d960c1 | 2019-03-13 14:52:27 +0100 | [diff] [blame] | 1928 | |
Eric Engestrom | 19d9e57 | 2019-08-28 00:06:03 +0100 | [diff] [blame] | 1929 | if (LLVM_VERSION_MAJOR >= 9) { |
Samuel Pitoiset | ad6dc13 | 2019-03-26 12:37:39 +0100 | [diff] [blame] | 1930 | /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */ |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1931 | ac_build_buffer_store_common(ctx, rsrc, vdata, NULL, |
| 1932 | voffset, soffset, 1, |
| 1933 | ctx->i16, cache_policy, |
| 1934 | false, false); |
Samuel Pitoiset | ad6dc13 | 2019-03-26 12:37:39 +0100 | [diff] [blame] | 1935 | } else { |
| 1936 | unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_16; |
| 1937 | unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT; |
| 1938 | |
| 1939 | vdata = LLVMBuildZExt(ctx->builder, vdata, ctx->i32, ""); |
| 1940 | |
| 1941 | ac_build_raw_tbuffer_store(ctx, rsrc, vdata, voffset, soffset, |
Marek Olšák | a29e781 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1942 | ctx->i32_0, 1, dfmt, nfmt, cache_policy); |
Samuel Pitoiset | ad6dc13 | 2019-03-26 12:37:39 +0100 | [diff] [blame] | 1943 | } |
Samuel Pitoiset | 9d960c1 | 2019-03-13 14:52:27 +0100 | [diff] [blame] | 1944 | } |
| 1945 | |
Samuel Pitoiset | b235d77 | 2019-03-13 16:08:32 +0100 | [diff] [blame] | 1946 | void |
| 1947 | ac_build_tbuffer_store_byte(struct ac_llvm_context *ctx, |
| 1948 | LLVMValueRef rsrc, |
| 1949 | LLVMValueRef vdata, |
| 1950 | LLVMValueRef voffset, |
| 1951 | LLVMValueRef soffset, |
Marek Olšák | a29e781 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1952 | unsigned cache_policy) |
Samuel Pitoiset | b235d77 | 2019-03-13 16:08:32 +0100 | [diff] [blame] | 1953 | { |
Samuel Pitoiset | b235d77 | 2019-03-13 16:08:32 +0100 | [diff] [blame] | 1954 | vdata = LLVMBuildBitCast(ctx->builder, vdata, ctx->i8, ""); |
Samuel Pitoiset | b235d77 | 2019-03-13 16:08:32 +0100 | [diff] [blame] | 1955 | |
Eric Engestrom | 19d9e57 | 2019-08-28 00:06:03 +0100 | [diff] [blame] | 1956 | if (LLVM_VERSION_MAJOR >= 9) { |
Samuel Pitoiset | ad6dc13 | 2019-03-26 12:37:39 +0100 | [diff] [blame] | 1957 | /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */ |
Samuel Pitoiset | af65f94 | 2019-08-23 08:22:51 +0200 | [diff] [blame] | 1958 | ac_build_buffer_store_common(ctx, rsrc, vdata, NULL, |
| 1959 | voffset, soffset, 1, |
| 1960 | ctx->i8, cache_policy, |
| 1961 | false, false); |
Samuel Pitoiset | ad6dc13 | 2019-03-26 12:37:39 +0100 | [diff] [blame] | 1962 | } else { |
| 1963 | unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_8; |
| 1964 | unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT; |
| 1965 | |
| 1966 | vdata = LLVMBuildZExt(ctx->builder, vdata, ctx->i32, ""); |
| 1967 | |
| 1968 | ac_build_raw_tbuffer_store(ctx, rsrc, vdata, voffset, soffset, |
Marek Olšák | a29e781 | 2019-06-28 20:53:15 -0400 | [diff] [blame] | 1969 | ctx->i32_0, 1, dfmt, nfmt, cache_policy); |
Samuel Pitoiset | ad6dc13 | 2019-03-26 12:37:39 +0100 | [diff] [blame] | 1970 | } |
Samuel Pitoiset | b235d77 | 2019-03-13 16:08:32 +0100 | [diff] [blame] | 1971 | } |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1972 | /** |
| 1973 | * Set range metadata on an instruction. This can only be used on load and |
| 1974 | * call instructions. If you know an instruction can only produce the values |
| 1975 | * 0, 1, 2, you would do set_range_metadata(value, 0, 3); |
| 1976 | * \p lo is the minimum value inclusive. |
| 1977 | * \p hi is the maximum value exclusive. |
| 1978 | */ |
| 1979 | static void set_range_metadata(struct ac_llvm_context *ctx, |
| 1980 | LLVMValueRef value, unsigned lo, unsigned hi) |
| 1981 | { |
| 1982 | LLVMValueRef range_md, md_args[2]; |
| 1983 | LLVMTypeRef type = LLVMTypeOf(value); |
| 1984 | LLVMContextRef context = LLVMGetTypeContext(type); |
| 1985 | |
| 1986 | md_args[0] = LLVMConstInt(type, lo, false); |
| 1987 | md_args[1] = LLVMConstInt(type, hi, false); |
| 1988 | range_md = LLVMMDNodeInContext(context, md_args, 2); |
| 1989 | LLVMSetMetadata(value, ctx->range_md_kind, range_md); |
| 1990 | } |
| 1991 | |
| 1992 | LLVMValueRef |
| 1993 | ac_get_thread_id(struct ac_llvm_context *ctx) |
| 1994 | { |
| 1995 | LLVMValueRef tid; |
| 1996 | |
Marek Olšák | 7e1faa7 | 2017-03-05 00:15:31 +0100 | [diff] [blame] | 1997 | LLVMValueRef tid_args[2]; |
| 1998 | tid_args[0] = LLVMConstInt(ctx->i32, 0xffffffff, false); |
Marek Olšák | cc36ebb | 2018-08-29 00:15:16 -0400 | [diff] [blame] | 1999 | tid_args[1] = ctx->i32_0; |
Marek Olšák | 7e1faa7 | 2017-03-05 00:15:31 +0100 | [diff] [blame] | 2000 | tid_args[1] = ac_build_intrinsic(ctx, |
| 2001 | "llvm.amdgcn.mbcnt.lo", ctx->i32, |
| 2002 | tid_args, 2, AC_FUNC_ATTR_READNONE); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2003 | |
Marek Olšák | 9e467d1 | 2019-07-12 17:12:17 -0400 | [diff] [blame] | 2004 | if (ctx->wave_size == 32) { |
| 2005 | tid = tid_args[1]; |
| 2006 | } else { |
| 2007 | tid = ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.hi", |
| 2008 | ctx->i32, tid_args, |
| 2009 | 2, AC_FUNC_ATTR_READNONE); |
| 2010 | } |
| 2011 | set_range_metadata(ctx, tid, 0, ctx->wave_size); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2012 | return tid; |
| 2013 | } |
| 2014 | |
| 2015 | /* |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 2016 | * AMD GCN implements derivatives using the local data store (LDS) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2017 | * All writes to the LDS happen in all executing threads at |
| 2018 | * the same time. TID is the Thread ID for the current |
| 2019 | * thread and is a value between 0 and 63, representing |
| 2020 | * the thread's position in the wavefront. |
| 2021 | * |
| 2022 | * For the pixel shader threads are grouped into quads of four pixels. |
| 2023 | * The TIDs of the pixels of a quad are: |
| 2024 | * |
| 2025 | * +------+------+ |
| 2026 | * |4n + 0|4n + 1| |
| 2027 | * +------+------+ |
| 2028 | * |4n + 2|4n + 3| |
| 2029 | * +------+------+ |
| 2030 | * |
| 2031 | * So, masking the TID with 0xfffffffc yields the TID of the top left pixel |
| 2032 | * of the quad, masking with 0xfffffffd yields the TID of the top pixel of |
| 2033 | * the current pixel's column, and masking with 0xfffffffe yields the TID |
| 2034 | * of the left pixel of the current pixel's row. |
| 2035 | * |
| 2036 | * Adding 1 yields the TID of the pixel to the right of the left pixel, and |
| 2037 | * adding 2 yields the TID of the pixel below the top pixel. |
| 2038 | */ |
| 2039 | LLVMValueRef |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2040 | ac_build_ddxy(struct ac_llvm_context *ctx, |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2041 | uint32_t mask, |
| 2042 | int idx, |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2043 | LLVMValueRef val) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2044 | { |
Samuel Pitoiset | 3fbdcd9 | 2018-11-02 09:50:32 +0100 | [diff] [blame] | 2045 | unsigned tl_lanes[4], trbl_lanes[4]; |
Rhys Perry | fd1fc25 | 2019-04-08 09:24:57 +0200 | [diff] [blame] | 2046 | char name[32], type[8]; |
Marek Olšák | 492ad9a | 2019-01-07 14:51:13 -0500 | [diff] [blame] | 2047 | LLVMValueRef tl, trbl; |
Rhys Perry | fd1fc25 | 2019-04-08 09:24:57 +0200 | [diff] [blame] | 2048 | LLVMTypeRef result_type; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2049 | LLVMValueRef result; |
| 2050 | |
Rhys Perry | fd1fc25 | 2019-04-08 09:24:57 +0200 | [diff] [blame] | 2051 | result_type = ac_to_float_type(ctx, LLVMTypeOf(val)); |
| 2052 | |
| 2053 | if (result_type == ctx->f16) |
| 2054 | val = LLVMBuildZExt(ctx->builder, val, ctx->i32, ""); |
| 2055 | |
Samuel Pitoiset | 3fbdcd9 | 2018-11-02 09:50:32 +0100 | [diff] [blame] | 2056 | for (unsigned i = 0; i < 4; ++i) { |
| 2057 | tl_lanes[i] = i & mask; |
| 2058 | trbl_lanes[i] = (i & mask) + idx; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2059 | } |
| 2060 | |
Samuel Pitoiset | 3fbdcd9 | 2018-11-02 09:50:32 +0100 | [diff] [blame] | 2061 | tl = ac_build_quad_swizzle(ctx, val, |
| 2062 | tl_lanes[0], tl_lanes[1], |
| 2063 | tl_lanes[2], tl_lanes[3]); |
| 2064 | trbl = ac_build_quad_swizzle(ctx, val, |
| 2065 | trbl_lanes[0], trbl_lanes[1], |
| 2066 | trbl_lanes[2], trbl_lanes[3]); |
| 2067 | |
Rhys Perry | fd1fc25 | 2019-04-08 09:24:57 +0200 | [diff] [blame] | 2068 | if (result_type == ctx->f16) { |
| 2069 | tl = LLVMBuildTrunc(ctx->builder, tl, ctx->i16, ""); |
| 2070 | trbl = LLVMBuildTrunc(ctx->builder, trbl, ctx->i16, ""); |
| 2071 | } |
| 2072 | |
| 2073 | tl = LLVMBuildBitCast(ctx->builder, tl, result_type, ""); |
| 2074 | trbl = LLVMBuildBitCast(ctx->builder, trbl, result_type, ""); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2075 | result = LLVMBuildFSub(ctx->builder, trbl, tl, ""); |
Nicolai Hähnle | c0acb59 | 2018-05-01 11:06:18 +0200 | [diff] [blame] | 2076 | |
Rhys Perry | fd1fc25 | 2019-04-08 09:24:57 +0200 | [diff] [blame] | 2077 | ac_build_type_name_for_intr(result_type, type, sizeof(type)); |
| 2078 | snprintf(name, sizeof(name), "llvm.amdgcn.wqm.%s", type); |
Nicolai Hähnle | c0acb59 | 2018-05-01 11:06:18 +0200 | [diff] [blame] | 2079 | |
Rhys Perry | fd1fc25 | 2019-04-08 09:24:57 +0200 | [diff] [blame] | 2080 | return ac_build_intrinsic(ctx, name, result_type, &result, 1, 0); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2081 | } |
Dave Airlie | f32955b | 2017-02-13 22:08:30 +0000 | [diff] [blame] | 2082 | |
| 2083 | void |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2084 | ac_build_sendmsg(struct ac_llvm_context *ctx, |
| 2085 | uint32_t msg, |
| 2086 | LLVMValueRef wave_id) |
Dave Airlie | f32955b | 2017-02-13 22:08:30 +0000 | [diff] [blame] | 2087 | { |
| 2088 | LLVMValueRef args[2]; |
Dave Airlie | f32955b | 2017-02-13 22:08:30 +0000 | [diff] [blame] | 2089 | args[0] = LLVMConstInt(ctx->i32, msg, false); |
| 2090 | args[1] = wave_id; |
Marek Olšák | 3bf1e03 | 2018-02-02 19:26:49 +0100 | [diff] [blame] | 2091 | ac_build_intrinsic(ctx, "llvm.amdgcn.s.sendmsg", ctx->voidt, args, 2, 0); |
Dave Airlie | f32955b | 2017-02-13 22:08:30 +0000 | [diff] [blame] | 2092 | } |
Dave Airlie | cae1ff1 | 2017-02-16 03:42:56 +0000 | [diff] [blame] | 2093 | |
| 2094 | LLVMValueRef |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2095 | ac_build_imsb(struct ac_llvm_context *ctx, |
| 2096 | LLVMValueRef arg, |
| 2097 | LLVMTypeRef dst_type) |
Dave Airlie | cae1ff1 | 2017-02-16 03:42:56 +0000 | [diff] [blame] | 2098 | { |
Marek Olšák | 3bf1e03 | 2018-02-02 19:26:49 +0100 | [diff] [blame] | 2099 | LLVMValueRef msb = ac_build_intrinsic(ctx, "llvm.amdgcn.sffbh.i32", |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2100 | dst_type, &arg, 1, |
| 2101 | AC_FUNC_ATTR_READNONE); |
Dave Airlie | cae1ff1 | 2017-02-16 03:42:56 +0000 | [diff] [blame] | 2102 | |
| 2103 | /* The HW returns the last bit index from MSB, but NIR/TGSI wants |
| 2104 | * the index from LSB. Invert it by doing "31 - msb". */ |
| 2105 | msb = LLVMBuildSub(ctx->builder, LLVMConstInt(ctx->i32, 31, false), |
| 2106 | msb, ""); |
| 2107 | |
| 2108 | LLVMValueRef all_ones = LLVMConstInt(ctx->i32, -1, true); |
| 2109 | LLVMValueRef cond = LLVMBuildOr(ctx->builder, |
| 2110 | LLVMBuildICmp(ctx->builder, LLVMIntEQ, |
Marek Olšák | cc36ebb | 2018-08-29 00:15:16 -0400 | [diff] [blame] | 2111 | arg, ctx->i32_0, ""), |
Dave Airlie | cae1ff1 | 2017-02-16 03:42:56 +0000 | [diff] [blame] | 2112 | LLVMBuildICmp(ctx->builder, LLVMIntEQ, |
| 2113 | arg, all_ones, ""), ""); |
| 2114 | |
| 2115 | return LLVMBuildSelect(ctx->builder, cond, all_ones, msb, ""); |
| 2116 | } |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2117 | |
| 2118 | LLVMValueRef |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2119 | ac_build_umsb(struct ac_llvm_context *ctx, |
| 2120 | LLVMValueRef arg, |
| 2121 | LLVMTypeRef dst_type) |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2122 | { |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2123 | const char *intrin_name; |
| 2124 | LLVMTypeRef type; |
| 2125 | LLVMValueRef highest_bit; |
| 2126 | LLVMValueRef zero; |
Samuel Pitoiset | 5a6c8ca | 2018-09-14 12:52:36 +0200 | [diff] [blame] | 2127 | unsigned bitsize; |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2128 | |
Samuel Pitoiset | 5a6c8ca | 2018-09-14 12:52:36 +0200 | [diff] [blame] | 2129 | bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(arg)); |
| 2130 | switch (bitsize) { |
| 2131 | case 64: |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2132 | intrin_name = "llvm.ctlz.i64"; |
| 2133 | type = ctx->i64; |
| 2134 | highest_bit = LLVMConstInt(ctx->i64, 63, false); |
| 2135 | zero = ctx->i64_0; |
Samuel Pitoiset | 5a6c8ca | 2018-09-14 12:52:36 +0200 | [diff] [blame] | 2136 | break; |
| 2137 | case 32: |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2138 | intrin_name = "llvm.ctlz.i32"; |
| 2139 | type = ctx->i32; |
| 2140 | highest_bit = LLVMConstInt(ctx->i32, 31, false); |
| 2141 | zero = ctx->i32_0; |
Samuel Pitoiset | 5a6c8ca | 2018-09-14 12:52:36 +0200 | [diff] [blame] | 2142 | break; |
| 2143 | case 16: |
| 2144 | intrin_name = "llvm.ctlz.i16"; |
| 2145 | type = ctx->i16; |
| 2146 | highest_bit = LLVMConstInt(ctx->i16, 15, false); |
| 2147 | zero = ctx->i16_0; |
| 2148 | break; |
Samuel Pitoiset | 2cecf6c | 2019-04-01 16:18:09 +0200 | [diff] [blame] | 2149 | case 8: |
| 2150 | intrin_name = "llvm.ctlz.i8"; |
| 2151 | type = ctx->i8; |
| 2152 | highest_bit = LLVMConstInt(ctx->i8, 7, false); |
| 2153 | zero = ctx->i8_0; |
| 2154 | break; |
Samuel Pitoiset | 5a6c8ca | 2018-09-14 12:52:36 +0200 | [diff] [blame] | 2155 | default: |
| 2156 | unreachable(!"invalid bitsize"); |
| 2157 | break; |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2158 | } |
| 2159 | |
| 2160 | LLVMValueRef params[2] = { |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2161 | arg, |
Dave Airlie | a76b6c2 | 2017-10-26 15:20:15 +1000 | [diff] [blame] | 2162 | ctx->i1true, |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2163 | }; |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2164 | |
| 2165 | LLVMValueRef msb = ac_build_intrinsic(ctx, intrin_name, type, |
| 2166 | params, 2, |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2167 | AC_FUNC_ATTR_READNONE); |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2168 | |
| 2169 | /* The HW returns the last bit index from MSB, but TGSI/NIR wants |
| 2170 | * the index from LSB. Invert it by doing "31 - msb". */ |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2171 | msb = LLVMBuildSub(ctx->builder, highest_bit, msb, ""); |
Samuel Pitoiset | 4d5fce2 | 2019-03-26 11:34:46 +0100 | [diff] [blame] | 2172 | |
| 2173 | if (bitsize == 64) { |
| 2174 | msb = LLVMBuildTrunc(ctx->builder, msb, ctx->i32, ""); |
Samuel Pitoiset | 2cecf6c | 2019-04-01 16:18:09 +0200 | [diff] [blame] | 2175 | } else if (bitsize < 32) { |
Samuel Pitoiset | 4d5fce2 | 2019-03-26 11:34:46 +0100 | [diff] [blame] | 2176 | msb = LLVMBuildSExt(ctx->builder, msb, ctx->i32, ""); |
| 2177 | } |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2178 | |
| 2179 | /* check for zero */ |
| 2180 | return LLVMBuildSelect(ctx->builder, |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2181 | LLVMBuildICmp(ctx->builder, LLVMIntEQ, arg, zero, ""), |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2182 | LLVMConstInt(ctx->i32, -1, true), msb, ""); |
| 2183 | } |
Marek Olšák | 660b55e | 2017-02-16 22:41:16 +0100 | [diff] [blame] | 2184 | |
Marek Olšák | a140aeb | 2018-01-02 03:59:43 +0100 | [diff] [blame] | 2185 | LLVMValueRef ac_build_fmin(struct ac_llvm_context *ctx, LLVMValueRef a, |
| 2186 | LLVMValueRef b) |
| 2187 | { |
Rhys Perry | bbbfdef | 2018-12-06 14:23:31 +0000 | [diff] [blame] | 2188 | char name[64]; |
| 2189 | snprintf(name, sizeof(name), "llvm.minnum.f%d", ac_get_elem_bits(ctx, LLVMTypeOf(a))); |
Marek Olšák | a140aeb | 2018-01-02 03:59:43 +0100 | [diff] [blame] | 2190 | LLVMValueRef args[2] = {a, b}; |
Rhys Perry | bbbfdef | 2018-12-06 14:23:31 +0000 | [diff] [blame] | 2191 | return ac_build_intrinsic(ctx, name, LLVMTypeOf(a), args, 2, |
Marek Olšák | a140aeb | 2018-01-02 03:59:43 +0100 | [diff] [blame] | 2192 | AC_FUNC_ATTR_READNONE); |
| 2193 | } |
| 2194 | |
| 2195 | LLVMValueRef ac_build_fmax(struct ac_llvm_context *ctx, LLVMValueRef a, |
| 2196 | LLVMValueRef b) |
| 2197 | { |
Rhys Perry | bbbfdef | 2018-12-06 14:23:31 +0000 | [diff] [blame] | 2198 | char name[64]; |
| 2199 | snprintf(name, sizeof(name), "llvm.maxnum.f%d", ac_get_elem_bits(ctx, LLVMTypeOf(a))); |
Marek Olšák | a140aeb | 2018-01-02 03:59:43 +0100 | [diff] [blame] | 2200 | LLVMValueRef args[2] = {a, b}; |
Rhys Perry | bbbfdef | 2018-12-06 14:23:31 +0000 | [diff] [blame] | 2201 | return ac_build_intrinsic(ctx, name, LLVMTypeOf(a), args, 2, |
Marek Olšák | a140aeb | 2018-01-02 03:59:43 +0100 | [diff] [blame] | 2202 | AC_FUNC_ATTR_READNONE); |
| 2203 | } |
| 2204 | |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2205 | LLVMValueRef ac_build_imin(struct ac_llvm_context *ctx, LLVMValueRef a, |
| 2206 | LLVMValueRef b) |
| 2207 | { |
| 2208 | LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntSLE, a, b, ""); |
| 2209 | return LLVMBuildSelect(ctx->builder, cmp, a, b, ""); |
| 2210 | } |
| 2211 | |
| 2212 | LLVMValueRef ac_build_imax(struct ac_llvm_context *ctx, LLVMValueRef a, |
| 2213 | LLVMValueRef b) |
| 2214 | { |
| 2215 | LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGT, a, b, ""); |
| 2216 | return LLVMBuildSelect(ctx->builder, cmp, a, b, ""); |
| 2217 | } |
| 2218 | |
Nicolai Hähnle | a69afb6 | 2017-06-25 17:56:37 +0200 | [diff] [blame] | 2219 | LLVMValueRef ac_build_umin(struct ac_llvm_context *ctx, LLVMValueRef a, |
| 2220 | LLVMValueRef b) |
| 2221 | { |
| 2222 | LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntULE, a, b, ""); |
| 2223 | return LLVMBuildSelect(ctx->builder, cmp, a, b, ""); |
| 2224 | } |
| 2225 | |
Samuel Pitoiset | 4cb13e9 | 2019-04-10 17:16:49 +0200 | [diff] [blame] | 2226 | LLVMValueRef ac_build_umax(struct ac_llvm_context *ctx, LLVMValueRef a, |
| 2227 | LLVMValueRef b) |
| 2228 | { |
| 2229 | LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntUGE, a, b, ""); |
| 2230 | return LLVMBuildSelect(ctx->builder, cmp, a, b, ""); |
| 2231 | } |
| 2232 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2233 | LLVMValueRef ac_build_clamp(struct ac_llvm_context *ctx, LLVMValueRef value) |
Marek Olšák | 660b55e | 2017-02-16 22:41:16 +0100 | [diff] [blame] | 2234 | { |
Rhys Perry | bbbfdef | 2018-12-06 14:23:31 +0000 | [diff] [blame] | 2235 | LLVMTypeRef t = LLVMTypeOf(value); |
| 2236 | return ac_build_fmin(ctx, ac_build_fmax(ctx, value, LLVMConstReal(t, 0.0)), |
| 2237 | LLVMConstReal(t, 1.0)); |
Marek Olšák | 660b55e | 2017-02-16 22:41:16 +0100 | [diff] [blame] | 2238 | } |
Marek Olšák | 369f4a8 | 2017-02-23 02:06:40 +0100 | [diff] [blame] | 2239 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2240 | void ac_build_export(struct ac_llvm_context *ctx, struct ac_export_args *a) |
Marek Olšák | 369f4a8 | 2017-02-23 02:06:40 +0100 | [diff] [blame] | 2241 | { |
| 2242 | LLVMValueRef args[9]; |
| 2243 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2244 | args[0] = LLVMConstInt(ctx->i32, a->target, 0); |
| 2245 | args[1] = LLVMConstInt(ctx->i32, a->enabled_channels, 0); |
Marek Olšák | 2b3ebe3 | 2017-02-23 02:15:54 +0100 | [diff] [blame] | 2246 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2247 | if (a->compr) { |
| 2248 | LLVMTypeRef i16 = LLVMInt16TypeInContext(ctx->context); |
| 2249 | LLVMTypeRef v2i16 = LLVMVectorType(i16, 2); |
Marek Olšák | 2b3ebe3 | 2017-02-23 02:15:54 +0100 | [diff] [blame] | 2250 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2251 | args[2] = LLVMBuildBitCast(ctx->builder, a->out[0], |
| 2252 | v2i16, ""); |
| 2253 | args[3] = LLVMBuildBitCast(ctx->builder, a->out[1], |
| 2254 | v2i16, ""); |
| 2255 | args[4] = LLVMConstInt(ctx->i1, a->done, 0); |
| 2256 | args[5] = LLVMConstInt(ctx->i1, a->valid_mask, 0); |
Marek Olšák | 2b3ebe3 | 2017-02-23 02:15:54 +0100 | [diff] [blame] | 2257 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2258 | ac_build_intrinsic(ctx, "llvm.amdgcn.exp.compr.v2i16", |
| 2259 | ctx->voidt, args, 6, 0); |
| 2260 | } else { |
| 2261 | args[2] = a->out[0]; |
| 2262 | args[3] = a->out[1]; |
| 2263 | args[4] = a->out[2]; |
| 2264 | args[5] = a->out[3]; |
| 2265 | args[6] = LLVMConstInt(ctx->i1, a->done, 0); |
| 2266 | args[7] = LLVMConstInt(ctx->i1, a->valid_mask, 0); |
Marek Olšák | 2b3ebe3 | 2017-02-23 02:15:54 +0100 | [diff] [blame] | 2267 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2268 | ac_build_intrinsic(ctx, "llvm.amdgcn.exp.f32", |
| 2269 | ctx->voidt, args, 8, 0); |
Marek Olšák | 2b3ebe3 | 2017-02-23 02:15:54 +0100 | [diff] [blame] | 2270 | } |
Marek Olšák | 369f4a8 | 2017-02-23 02:06:40 +0100 | [diff] [blame] | 2271 | } |
Marek Olšák | ad18d7f | 2017-02-23 23:00:19 +0100 | [diff] [blame] | 2272 | |
Samuel Pitoiset | bd9f7b7 | 2018-02-07 19:09:12 +0100 | [diff] [blame] | 2273 | void ac_build_export_null(struct ac_llvm_context *ctx) |
| 2274 | { |
| 2275 | struct ac_export_args args; |
| 2276 | |
| 2277 | args.enabled_channels = 0x0; /* enabled channels */ |
| 2278 | args.valid_mask = 1; /* whether the EXEC mask is valid */ |
| 2279 | args.done = 1; /* DONE bit */ |
| 2280 | args.target = V_008DFC_SQ_EXP_NULL; |
| 2281 | args.compr = 0; /* COMPR flag (0 = 32-bit export) */ |
| 2282 | args.out[0] = LLVMGetUndef(ctx->f32); /* R */ |
| 2283 | args.out[1] = LLVMGetUndef(ctx->f32); /* G */ |
| 2284 | args.out[2] = LLVMGetUndef(ctx->f32); /* B */ |
| 2285 | args.out[3] = LLVMGetUndef(ctx->f32); /* A */ |
| 2286 | |
| 2287 | ac_build_export(ctx, &args); |
| 2288 | } |
| 2289 | |
Nicolai Hähnle | 625dcbb | 2018-03-23 11:20:24 +0100 | [diff] [blame] | 2290 | static unsigned ac_num_coords(enum ac_image_dim dim) |
| 2291 | { |
| 2292 | switch (dim) { |
| 2293 | case ac_image_1d: |
| 2294 | return 1; |
| 2295 | case ac_image_2d: |
| 2296 | case ac_image_1darray: |
| 2297 | return 2; |
| 2298 | case ac_image_3d: |
| 2299 | case ac_image_cube: |
| 2300 | case ac_image_2darray: |
| 2301 | case ac_image_2dmsaa: |
| 2302 | return 3; |
| 2303 | case ac_image_2darraymsaa: |
| 2304 | return 4; |
| 2305 | default: |
| 2306 | unreachable("ac_num_coords: bad dim"); |
| 2307 | } |
| 2308 | } |
| 2309 | |
| 2310 | static unsigned ac_num_derivs(enum ac_image_dim dim) |
| 2311 | { |
| 2312 | switch (dim) { |
| 2313 | case ac_image_1d: |
| 2314 | case ac_image_1darray: |
| 2315 | return 2; |
| 2316 | case ac_image_2d: |
| 2317 | case ac_image_2darray: |
| 2318 | case ac_image_cube: |
| 2319 | return 4; |
| 2320 | case ac_image_3d: |
| 2321 | return 6; |
| 2322 | case ac_image_2dmsaa: |
| 2323 | case ac_image_2darraymsaa: |
| 2324 | default: |
| 2325 | unreachable("derivatives not supported"); |
| 2326 | } |
| 2327 | } |
| 2328 | |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2329 | static const char *get_atomic_name(enum ac_atomic_op op) |
| 2330 | { |
| 2331 | switch (op) { |
| 2332 | case ac_atomic_swap: return "swap"; |
| 2333 | case ac_atomic_add: return "add"; |
| 2334 | case ac_atomic_sub: return "sub"; |
| 2335 | case ac_atomic_smin: return "smin"; |
| 2336 | case ac_atomic_umin: return "umin"; |
| 2337 | case ac_atomic_smax: return "smax"; |
| 2338 | case ac_atomic_umax: return "umax"; |
| 2339 | case ac_atomic_and: return "and"; |
| 2340 | case ac_atomic_or: return "or"; |
| 2341 | case ac_atomic_xor: return "xor"; |
Pierre-Eric Pelloux-Prayer | 704a6b5 | 2019-07-24 12:09:31 +0200 | [diff] [blame] | 2342 | case ac_atomic_inc_wrap: return "inc"; |
| 2343 | case ac_atomic_dec_wrap: return "dec"; |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2344 | } |
| 2345 | unreachable("bad atomic op"); |
| 2346 | } |
| 2347 | |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2348 | LLVMValueRef ac_build_image_opcode(struct ac_llvm_context *ctx, |
| 2349 | struct ac_image_args *a) |
| 2350 | { |
| 2351 | const char *overload[3] = { "", "", "" }; |
| 2352 | unsigned num_overloads = 0; |
| 2353 | LLVMValueRef args[18]; |
| 2354 | unsigned num_args = 0; |
Bas Nieuwenhuizen | 4fc2d5e | 2018-06-06 01:42:17 +0200 | [diff] [blame] | 2355 | enum ac_image_dim dim = a->dim; |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2356 | |
| 2357 | assert(!a->lod || a->lod == ctx->i32_0 || a->lod == ctx->f32_0 || |
| 2358 | !a->level_zero); |
| 2359 | assert((a->opcode != ac_image_get_resinfo && a->opcode != ac_image_load_mip && |
| 2360 | a->opcode != ac_image_store_mip) || |
| 2361 | a->lod); |
| 2362 | assert(a->opcode == ac_image_sample || a->opcode == ac_image_gather4 || |
| 2363 | (!a->compare && !a->offset)); |
| 2364 | assert((a->opcode == ac_image_sample || a->opcode == ac_image_gather4 || |
| 2365 | a->opcode == ac_image_get_lod) || |
| 2366 | !a->bias); |
| 2367 | assert((a->bias ? 1 : 0) + |
| 2368 | (a->lod ? 1 : 0) + |
| 2369 | (a->level_zero ? 1 : 0) + |
| 2370 | (a->derivs[0] ? 1 : 0) <= 1); |
| 2371 | |
Bas Nieuwenhuizen | 4fc2d5e | 2018-06-06 01:42:17 +0200 | [diff] [blame] | 2372 | if (a->opcode == ac_image_get_lod) { |
| 2373 | switch (dim) { |
| 2374 | case ac_image_1darray: |
| 2375 | dim = ac_image_1d; |
| 2376 | break; |
| 2377 | case ac_image_2darray: |
| 2378 | case ac_image_cube: |
| 2379 | dim = ac_image_2d; |
| 2380 | break; |
| 2381 | default: |
| 2382 | break; |
| 2383 | } |
| 2384 | } |
| 2385 | |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2386 | bool sample = a->opcode == ac_image_sample || |
| 2387 | a->opcode == ac_image_gather4 || |
| 2388 | a->opcode == ac_image_get_lod; |
| 2389 | bool atomic = a->opcode == ac_image_atomic || |
| 2390 | a->opcode == ac_image_atomic_cmpswap; |
Marek Olšák | fe5dbe7 | 2019-06-28 21:29:34 -0400 | [diff] [blame] | 2391 | bool load = a->opcode == ac_image_sample || |
| 2392 | a->opcode == ac_image_gather4 || |
| 2393 | a->opcode == ac_image_load || |
| 2394 | a->opcode == ac_image_load_mip; |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2395 | LLVMTypeRef coord_type = sample ? ctx->f32 : ctx->i32; |
| 2396 | |
| 2397 | if (atomic || a->opcode == ac_image_store || a->opcode == ac_image_store_mip) { |
| 2398 | args[num_args++] = a->data[0]; |
| 2399 | if (a->opcode == ac_image_atomic_cmpswap) |
| 2400 | args[num_args++] = a->data[1]; |
| 2401 | } |
| 2402 | |
| 2403 | if (!atomic) |
| 2404 | args[num_args++] = LLVMConstInt(ctx->i32, a->dmask, false); |
| 2405 | |
| 2406 | if (a->offset) |
| 2407 | args[num_args++] = ac_to_integer(ctx, a->offset); |
| 2408 | if (a->bias) { |
| 2409 | args[num_args++] = ac_to_float(ctx, a->bias); |
| 2410 | overload[num_overloads++] = ".f32"; |
| 2411 | } |
| 2412 | if (a->compare) |
| 2413 | args[num_args++] = ac_to_float(ctx, a->compare); |
| 2414 | if (a->derivs[0]) { |
Bas Nieuwenhuizen | 4fc2d5e | 2018-06-06 01:42:17 +0200 | [diff] [blame] | 2415 | unsigned count = ac_num_derivs(dim); |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2416 | for (unsigned i = 0; i < count; ++i) |
| 2417 | args[num_args++] = ac_to_float(ctx, a->derivs[i]); |
| 2418 | overload[num_overloads++] = ".f32"; |
| 2419 | } |
| 2420 | unsigned num_coords = |
Bas Nieuwenhuizen | 4fc2d5e | 2018-06-06 01:42:17 +0200 | [diff] [blame] | 2421 | a->opcode != ac_image_get_resinfo ? ac_num_coords(dim) : 0; |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2422 | for (unsigned i = 0; i < num_coords; ++i) |
| 2423 | args[num_args++] = LLVMBuildBitCast(ctx->builder, a->coords[i], coord_type, ""); |
| 2424 | if (a->lod) |
| 2425 | args[num_args++] = LLVMBuildBitCast(ctx->builder, a->lod, coord_type, ""); |
| 2426 | overload[num_overloads++] = sample ? ".f32" : ".i32"; |
| 2427 | |
| 2428 | args[num_args++] = a->resource; |
| 2429 | if (sample) { |
| 2430 | args[num_args++] = a->sampler; |
| 2431 | args[num_args++] = LLVMConstInt(ctx->i1, a->unorm, false); |
| 2432 | } |
| 2433 | |
| 2434 | args[num_args++] = ctx->i32_0; /* texfailctrl */ |
Marek Olšák | fe5dbe7 | 2019-06-28 21:29:34 -0400 | [diff] [blame] | 2435 | args[num_args++] = LLVMConstInt(ctx->i32, |
| 2436 | load ? get_load_cache_policy(ctx, a->cache_policy) : |
| 2437 | a->cache_policy, false); |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2438 | |
| 2439 | const char *name; |
| 2440 | const char *atomic_subop = ""; |
| 2441 | switch (a->opcode) { |
| 2442 | case ac_image_sample: name = "sample"; break; |
| 2443 | case ac_image_gather4: name = "gather4"; break; |
| 2444 | case ac_image_load: name = "load"; break; |
| 2445 | case ac_image_load_mip: name = "load.mip"; break; |
| 2446 | case ac_image_store: name = "store"; break; |
| 2447 | case ac_image_store_mip: name = "store.mip"; break; |
| 2448 | case ac_image_atomic: |
| 2449 | name = "atomic."; |
| 2450 | atomic_subop = get_atomic_name(a->atomic); |
| 2451 | break; |
| 2452 | case ac_image_atomic_cmpswap: |
| 2453 | name = "atomic."; |
| 2454 | atomic_subop = "cmpswap"; |
| 2455 | break; |
| 2456 | case ac_image_get_lod: name = "getlod"; break; |
| 2457 | case ac_image_get_resinfo: name = "getresinfo"; break; |
| 2458 | default: unreachable("invalid image opcode"); |
| 2459 | } |
| 2460 | |
| 2461 | const char *dimname; |
Bas Nieuwenhuizen | 4fc2d5e | 2018-06-06 01:42:17 +0200 | [diff] [blame] | 2462 | switch (dim) { |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2463 | case ac_image_1d: dimname = "1d"; break; |
| 2464 | case ac_image_2d: dimname = "2d"; break; |
| 2465 | case ac_image_3d: dimname = "3d"; break; |
| 2466 | case ac_image_cube: dimname = "cube"; break; |
| 2467 | case ac_image_1darray: dimname = "1darray"; break; |
| 2468 | case ac_image_2darray: dimname = "2darray"; break; |
| 2469 | case ac_image_2dmsaa: dimname = "2dmsaa"; break; |
| 2470 | case ac_image_2darraymsaa: dimname = "2darraymsaa"; break; |
| 2471 | default: unreachable("invalid dim"); |
| 2472 | } |
| 2473 | |
| 2474 | bool lod_suffix = |
| 2475 | a->lod && (a->opcode == ac_image_sample || a->opcode == ac_image_gather4); |
| 2476 | char intr_name[96]; |
| 2477 | snprintf(intr_name, sizeof(intr_name), |
| 2478 | "llvm.amdgcn.image.%s%s" /* base name */ |
| 2479 | "%s%s%s" /* sample/gather modifiers */ |
| 2480 | ".%s.%s%s%s%s", /* dimension and type overloads */ |
| 2481 | name, atomic_subop, |
| 2482 | a->compare ? ".c" : "", |
| 2483 | a->bias ? ".b" : |
| 2484 | lod_suffix ? ".l" : |
| 2485 | a->derivs[0] ? ".d" : |
| 2486 | a->level_zero ? ".lz" : "", |
| 2487 | a->offset ? ".o" : "", |
| 2488 | dimname, |
| 2489 | atomic ? "i32" : "v4f32", |
| 2490 | overload[0], overload[1], overload[2]); |
| 2491 | |
| 2492 | LLVMTypeRef retty; |
| 2493 | if (atomic) |
| 2494 | retty = ctx->i32; |
| 2495 | else if (a->opcode == ac_image_store || a->opcode == ac_image_store_mip) |
| 2496 | retty = ctx->voidt; |
| 2497 | else |
| 2498 | retty = ctx->v4f32; |
| 2499 | |
| 2500 | LLVMValueRef result = |
| 2501 | ac_build_intrinsic(ctx, intr_name, retty, args, num_args, |
| 2502 | a->attributes); |
| 2503 | if (!sample && retty == ctx->v4f32) { |
| 2504 | result = LLVMBuildBitCast(ctx->builder, result, |
| 2505 | ctx->v4i32, ""); |
| 2506 | } |
| 2507 | return result; |
| 2508 | } |
| 2509 | |
Marek Olšák | 0cc233e | 2019-09-16 19:37:04 -0400 | [diff] [blame] | 2510 | LLVMValueRef ac_build_image_get_sample_count(struct ac_llvm_context *ctx, |
| 2511 | LLVMValueRef rsrc) |
| 2512 | { |
| 2513 | LLVMValueRef samples; |
| 2514 | |
| 2515 | /* Read the samples from the descriptor directly. |
| 2516 | * Hardware doesn't have any instruction for this. |
| 2517 | */ |
| 2518 | samples = LLVMBuildExtractElement(ctx->builder, rsrc, |
| 2519 | LLVMConstInt(ctx->i32, 3, 0), ""); |
| 2520 | samples = LLVMBuildLShr(ctx->builder, samples, |
| 2521 | LLVMConstInt(ctx->i32, 16, 0), ""); |
| 2522 | samples = LLVMBuildAnd(ctx->builder, samples, |
| 2523 | LLVMConstInt(ctx->i32, 0xf, 0), ""); |
| 2524 | samples = LLVMBuildShl(ctx->builder, ctx->i32_1, |
| 2525 | samples, ""); |
| 2526 | return samples; |
| 2527 | } |
| 2528 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2529 | LLVMValueRef ac_build_cvt_pkrtz_f16(struct ac_llvm_context *ctx, |
| 2530 | LLVMValueRef args[2]) |
Marek Olšák | 653ac0b | 2017-02-24 16:38:25 +0100 | [diff] [blame] | 2531 | { |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2532 | LLVMTypeRef v2f16 = |
| 2533 | LLVMVectorType(LLVMHalfTypeInContext(ctx->context), 2); |
Daniel Schürmann | f582367 | 2018-02-03 14:37:26 +0100 | [diff] [blame] | 2534 | |
| 2535 | return ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pkrtz", v2f16, |
| 2536 | args, 2, AC_FUNC_ATTR_READNONE); |
Marek Olšák | 653ac0b | 2017-02-24 16:38:25 +0100 | [diff] [blame] | 2537 | } |
Marek Olšák | 9c09592 | 2017-02-24 22:44:18 +0100 | [diff] [blame] | 2538 | |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2539 | LLVMValueRef ac_build_cvt_pknorm_i16(struct ac_llvm_context *ctx, |
| 2540 | LLVMValueRef args[2]) |
| 2541 | { |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2542 | LLVMValueRef res = |
| 2543 | ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pknorm.i16", |
| 2544 | ctx->v2i16, args, 2, |
| 2545 | AC_FUNC_ATTR_READNONE); |
| 2546 | return LLVMBuildBitCast(ctx->builder, res, ctx->i32, ""); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2547 | } |
| 2548 | |
| 2549 | LLVMValueRef ac_build_cvt_pknorm_u16(struct ac_llvm_context *ctx, |
| 2550 | LLVMValueRef args[2]) |
| 2551 | { |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2552 | LLVMValueRef res = |
| 2553 | ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pknorm.u16", |
| 2554 | ctx->v2i16, args, 2, |
| 2555 | AC_FUNC_ATTR_READNONE); |
| 2556 | return LLVMBuildBitCast(ctx->builder, res, ctx->i32, ""); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2557 | } |
| 2558 | |
| 2559 | /* The 8-bit and 10-bit clamping is for HW workarounds. */ |
| 2560 | LLVMValueRef ac_build_cvt_pk_i16(struct ac_llvm_context *ctx, |
| 2561 | LLVMValueRef args[2], unsigned bits, bool hi) |
| 2562 | { |
| 2563 | assert(bits == 8 || bits == 10 || bits == 16); |
| 2564 | |
| 2565 | LLVMValueRef max_rgb = LLVMConstInt(ctx->i32, |
| 2566 | bits == 8 ? 127 : bits == 10 ? 511 : 32767, 0); |
| 2567 | LLVMValueRef min_rgb = LLVMConstInt(ctx->i32, |
| 2568 | bits == 8 ? -128 : bits == 10 ? -512 : -32768, 0); |
| 2569 | LLVMValueRef max_alpha = |
| 2570 | bits != 10 ? max_rgb : ctx->i32_1; |
| 2571 | LLVMValueRef min_alpha = |
| 2572 | bits != 10 ? min_rgb : LLVMConstInt(ctx->i32, -2, 0); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2573 | |
| 2574 | /* Clamp. */ |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2575 | if (bits != 16) { |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2576 | for (int i = 0; i < 2; i++) { |
| 2577 | bool alpha = hi && i == 1; |
| 2578 | args[i] = ac_build_imin(ctx, args[i], |
| 2579 | alpha ? max_alpha : max_rgb); |
| 2580 | args[i] = ac_build_imax(ctx, args[i], |
| 2581 | alpha ? min_alpha : min_rgb); |
| 2582 | } |
| 2583 | } |
| 2584 | |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2585 | LLVMValueRef res = |
| 2586 | ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pk.i16", |
| 2587 | ctx->v2i16, args, 2, |
| 2588 | AC_FUNC_ATTR_READNONE); |
| 2589 | return LLVMBuildBitCast(ctx->builder, res, ctx->i32, ""); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2590 | } |
| 2591 | |
| 2592 | /* The 8-bit and 10-bit clamping is for HW workarounds. */ |
| 2593 | LLVMValueRef ac_build_cvt_pk_u16(struct ac_llvm_context *ctx, |
| 2594 | LLVMValueRef args[2], unsigned bits, bool hi) |
| 2595 | { |
| 2596 | assert(bits == 8 || bits == 10 || bits == 16); |
| 2597 | |
| 2598 | LLVMValueRef max_rgb = LLVMConstInt(ctx->i32, |
| 2599 | bits == 8 ? 255 : bits == 10 ? 1023 : 65535, 0); |
| 2600 | LLVMValueRef max_alpha = |
| 2601 | bits != 10 ? max_rgb : LLVMConstInt(ctx->i32, 3, 0); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2602 | |
| 2603 | /* Clamp. */ |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2604 | if (bits != 16) { |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2605 | for (int i = 0; i < 2; i++) { |
| 2606 | bool alpha = hi && i == 1; |
| 2607 | args[i] = ac_build_umin(ctx, args[i], |
| 2608 | alpha ? max_alpha : max_rgb); |
| 2609 | } |
| 2610 | } |
| 2611 | |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2612 | LLVMValueRef res = |
| 2613 | ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pk.u16", |
| 2614 | ctx->v2i16, args, 2, |
| 2615 | AC_FUNC_ATTR_READNONE); |
| 2616 | return LLVMBuildBitCast(ctx->builder, res, ctx->i32, ""); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2617 | } |
| 2618 | |
Marek Olšák | 2a414c3 | 2017-10-04 05:07:50 +0200 | [diff] [blame] | 2619 | LLVMValueRef ac_build_wqm_vote(struct ac_llvm_context *ctx, LLVMValueRef i1) |
| 2620 | { |
Marek Olšák | 2a414c3 | 2017-10-04 05:07:50 +0200 | [diff] [blame] | 2621 | return ac_build_intrinsic(ctx, "llvm.amdgcn.wqm.vote", ctx->i1, |
| 2622 | &i1, 1, AC_FUNC_ATTR_READNONE); |
| 2623 | } |
| 2624 | |
Marek Olšák | 1ff9e27 | 2017-10-04 04:51:39 +0200 | [diff] [blame] | 2625 | void ac_build_kill_if_false(struct ac_llvm_context *ctx, LLVMValueRef i1) |
Marek Olšák | 9c09592 | 2017-02-24 22:44:18 +0100 | [diff] [blame] | 2626 | { |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2627 | ac_build_intrinsic(ctx, "llvm.amdgcn.kill", ctx->voidt, |
| 2628 | &i1, 1, 0); |
Marek Olšák | 9c09592 | 2017-02-24 22:44:18 +0100 | [diff] [blame] | 2629 | } |
Marek Olšák | d4324dd | 2017-02-24 23:06:31 +0100 | [diff] [blame] | 2630 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2631 | LLVMValueRef ac_build_bfe(struct ac_llvm_context *ctx, LLVMValueRef input, |
| 2632 | LLVMValueRef offset, LLVMValueRef width, |
| 2633 | bool is_signed) |
Marek Olšák | d4324dd | 2017-02-24 23:06:31 +0100 | [diff] [blame] | 2634 | { |
| 2635 | LLVMValueRef args[] = { |
| 2636 | input, |
| 2637 | offset, |
| 2638 | width, |
| 2639 | }; |
| 2640 | |
Samuel Pitoiset | 1fd60db | 2019-08-01 11:18:43 +0200 | [diff] [blame] | 2641 | return ac_build_intrinsic(ctx, is_signed ? "llvm.amdgcn.sbfe.i32" : |
| 2642 | "llvm.amdgcn.ubfe.i32", |
| 2643 | ctx->i32, args, 3, AC_FUNC_ATTR_READNONE); |
Daniel Schürmann | 0daeb1d | 2019-01-25 16:24:55 +0100 | [diff] [blame] | 2644 | |
Marek Olšák | d4324dd | 2017-02-24 23:06:31 +0100 | [diff] [blame] | 2645 | } |
Dave Airlie | 10ae83a | 2017-03-06 08:37:22 +1000 | [diff] [blame] | 2646 | |
Marek Olšák | 659f2e0 | 2018-08-14 01:49:49 -0400 | [diff] [blame] | 2647 | LLVMValueRef ac_build_imad(struct ac_llvm_context *ctx, LLVMValueRef s0, |
| 2648 | LLVMValueRef s1, LLVMValueRef s2) |
| 2649 | { |
| 2650 | return LLVMBuildAdd(ctx->builder, |
| 2651 | LLVMBuildMul(ctx->builder, s0, s1, ""), s2, ""); |
| 2652 | } |
| 2653 | |
| 2654 | LLVMValueRef ac_build_fmad(struct ac_llvm_context *ctx, LLVMValueRef s0, |
| 2655 | LLVMValueRef s1, LLVMValueRef s2) |
| 2656 | { |
Marek Olšák | d64593e | 2019-08-26 16:19:31 -0400 | [diff] [blame] | 2657 | /* FMA is better on GFX10, because it has FMA units instead of MUL-ADD units. */ |
| 2658 | if (ctx->chip_class >= GFX10) { |
| 2659 | return ac_build_intrinsic(ctx, "llvm.fma.f32", ctx->f32, |
| 2660 | (LLVMValueRef []) {s0, s1, s2}, 3, |
| 2661 | AC_FUNC_ATTR_READNONE); |
| 2662 | } |
| 2663 | |
Marek Olšák | 659f2e0 | 2018-08-14 01:49:49 -0400 | [diff] [blame] | 2664 | return LLVMBuildFAdd(ctx->builder, |
| 2665 | LLVMBuildFMul(ctx->builder, s0, s1, ""), s2, ""); |
| 2666 | } |
| 2667 | |
Marek Olšák | 969e517 | 2019-06-24 16:13:24 -0400 | [diff] [blame] | 2668 | void ac_build_waitcnt(struct ac_llvm_context *ctx, unsigned wait_flags) |
Samuel Pitoiset | 225b198 | 2017-12-12 18:10:23 +0100 | [diff] [blame] | 2669 | { |
Marek Olšák | 969e517 | 2019-06-24 16:13:24 -0400 | [diff] [blame] | 2670 | if (!wait_flags) |
| 2671 | return; |
| 2672 | |
| 2673 | unsigned lgkmcnt = 63; |
Marek Olšák | 969e517 | 2019-06-24 16:13:24 -0400 | [diff] [blame] | 2674 | unsigned vmcnt = ctx->chip_class >= GFX9 ? 63 : 15; |
| 2675 | unsigned vscnt = 63; |
| 2676 | |
| 2677 | if (wait_flags & AC_WAIT_LGKM) |
| 2678 | lgkmcnt = 0; |
Marek Olšák | 969e517 | 2019-06-24 16:13:24 -0400 | [diff] [blame] | 2679 | if (wait_flags & AC_WAIT_VLOAD) |
| 2680 | vmcnt = 0; |
| 2681 | |
| 2682 | if (wait_flags & AC_WAIT_VSTORE) { |
| 2683 | if (ctx->chip_class >= GFX10) |
| 2684 | vscnt = 0; |
| 2685 | else |
| 2686 | vmcnt = 0; |
| 2687 | } |
| 2688 | |
Marek Olšák | ea64d66 | 2019-06-29 01:03:29 -0400 | [diff] [blame] | 2689 | /* There is no intrinsic for vscnt(0), so use a fence. */ |
| 2690 | if ((wait_flags & AC_WAIT_LGKM && |
| 2691 | wait_flags & AC_WAIT_VLOAD && |
| 2692 | wait_flags & AC_WAIT_VSTORE) || |
| 2693 | vscnt == 0) { |
| 2694 | LLVMBuildFence(ctx->builder, LLVMAtomicOrderingRelease, false, ""); |
| 2695 | return; |
| 2696 | } |
| 2697 | |
Marek Olšák | 969e517 | 2019-06-24 16:13:24 -0400 | [diff] [blame] | 2698 | unsigned simm16 = (lgkmcnt << 8) | |
Marek Olšák | 14450c8 | 2019-06-29 00:59:55 -0400 | [diff] [blame] | 2699 | (7 << 4) | /* expcnt */ |
Marek Olšák | 969e517 | 2019-06-24 16:13:24 -0400 | [diff] [blame] | 2700 | (vmcnt & 0xf) | |
| 2701 | ((vmcnt >> 4) << 14); |
| 2702 | |
Samuel Pitoiset | 225b198 | 2017-12-12 18:10:23 +0100 | [diff] [blame] | 2703 | LLVMValueRef args[1] = { |
| 2704 | LLVMConstInt(ctx->i32, simm16, false), |
| 2705 | }; |
| 2706 | ac_build_intrinsic(ctx, "llvm.amdgcn.s.waitcnt", |
| 2707 | ctx->voidt, args, 1, 0); |
| 2708 | } |
| 2709 | |
Samuel Pitoiset | d6a0773 | 2019-03-25 13:37:46 +0100 | [diff] [blame] | 2710 | LLVMValueRef ac_build_fmed3(struct ac_llvm_context *ctx, LLVMValueRef src0, |
| 2711 | LLVMValueRef src1, LLVMValueRef src2, |
| 2712 | unsigned bitsize) |
| 2713 | { |
| 2714 | LLVMTypeRef type; |
| 2715 | char *intr; |
| 2716 | |
| 2717 | if (bitsize == 16) { |
| 2718 | intr = "llvm.amdgcn.fmed3.f16"; |
| 2719 | type = ctx->f16; |
| 2720 | } else if (bitsize == 32) { |
| 2721 | intr = "llvm.amdgcn.fmed3.f32"; |
| 2722 | type = ctx->f32; |
| 2723 | } else { |
| 2724 | intr = "llvm.amdgcn.fmed3.f64"; |
| 2725 | type = ctx->f64; |
| 2726 | } |
| 2727 | |
| 2728 | LLVMValueRef params[] = { |
| 2729 | src0, |
| 2730 | src1, |
| 2731 | src2, |
| 2732 | }; |
| 2733 | return ac_build_intrinsic(ctx, intr, type, params, 3, |
| 2734 | AC_FUNC_ATTR_READNONE); |
| 2735 | } |
| 2736 | |
Samuel Pitoiset | 459e339 | 2018-03-02 15:01:30 +0100 | [diff] [blame] | 2737 | LLVMValueRef ac_build_fract(struct ac_llvm_context *ctx, LLVMValueRef src0, |
| 2738 | unsigned bitsize) |
| 2739 | { |
| 2740 | LLVMTypeRef type; |
| 2741 | char *intr; |
| 2742 | |
Samuel Pitoiset | 2ac5c5c | 2019-03-21 09:19:06 +0100 | [diff] [blame] | 2743 | if (bitsize == 16) { |
| 2744 | intr = "llvm.amdgcn.fract.f16"; |
| 2745 | type = ctx->f16; |
| 2746 | } else if (bitsize == 32) { |
Samuel Pitoiset | f4f0e3a | 2019-03-19 23:40:32 +0100 | [diff] [blame] | 2747 | intr = "llvm.amdgcn.fract.f32"; |
Samuel Pitoiset | 459e339 | 2018-03-02 15:01:30 +0100 | [diff] [blame] | 2748 | type = ctx->f32; |
| 2749 | } else { |
Samuel Pitoiset | f4f0e3a | 2019-03-19 23:40:32 +0100 | [diff] [blame] | 2750 | intr = "llvm.amdgcn.fract.f64"; |
Samuel Pitoiset | 459e339 | 2018-03-02 15:01:30 +0100 | [diff] [blame] | 2751 | type = ctx->f64; |
| 2752 | } |
| 2753 | |
| 2754 | LLVMValueRef params[] = { |
| 2755 | src0, |
| 2756 | }; |
Samuel Pitoiset | f4f0e3a | 2019-03-19 23:40:32 +0100 | [diff] [blame] | 2757 | return ac_build_intrinsic(ctx, intr, type, params, 1, |
| 2758 | AC_FUNC_ATTR_READNONE); |
Samuel Pitoiset | 459e339 | 2018-03-02 15:01:30 +0100 | [diff] [blame] | 2759 | } |
| 2760 | |
Samuel Pitoiset | e8bdde2 | 2018-03-02 15:01:31 +0100 | [diff] [blame] | 2761 | LLVMValueRef ac_build_isign(struct ac_llvm_context *ctx, LLVMValueRef src0, |
| 2762 | unsigned bitsize) |
| 2763 | { |
Rhys Perry | 6790b3a | 2018-12-06 14:27:01 +0000 | [diff] [blame] | 2764 | LLVMTypeRef type = LLVMIntTypeInContext(ctx->context, bitsize); |
| 2765 | LLVMValueRef zero = LLVMConstInt(type, 0, false); |
| 2766 | LLVMValueRef one = LLVMConstInt(type, 1, false); |
Samuel Pitoiset | e8bdde2 | 2018-03-02 15:01:31 +0100 | [diff] [blame] | 2767 | |
Rhys Perry | 6790b3a | 2018-12-06 14:27:01 +0000 | [diff] [blame] | 2768 | LLVMValueRef cmp, val; |
Samuel Pitoiset | e8bdde2 | 2018-03-02 15:01:31 +0100 | [diff] [blame] | 2769 | cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGT, src0, zero, ""); |
| 2770 | val = LLVMBuildSelect(ctx->builder, cmp, one, src0, ""); |
| 2771 | cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGE, val, zero, ""); |
| 2772 | val = LLVMBuildSelect(ctx->builder, cmp, val, LLVMConstInt(type, -1, true), ""); |
| 2773 | return val; |
| 2774 | } |
| 2775 | |
Samuel Pitoiset | 322a51b | 2018-03-02 15:01:32 +0100 | [diff] [blame] | 2776 | LLVMValueRef ac_build_fsign(struct ac_llvm_context *ctx, LLVMValueRef src0, |
| 2777 | unsigned bitsize) |
| 2778 | { |
| 2779 | LLVMValueRef cmp, val, zero, one; |
| 2780 | LLVMTypeRef type; |
| 2781 | |
Samuel Pitoiset | 0eb1478 | 2019-03-21 10:14:30 +0100 | [diff] [blame] | 2782 | if (bitsize == 16) { |
| 2783 | type = ctx->f16; |
| 2784 | zero = ctx->f16_0; |
| 2785 | one = ctx->f16_1; |
| 2786 | } else if (bitsize == 32) { |
Samuel Pitoiset | 322a51b | 2018-03-02 15:01:32 +0100 | [diff] [blame] | 2787 | type = ctx->f32; |
| 2788 | zero = ctx->f32_0; |
| 2789 | one = ctx->f32_1; |
| 2790 | } else { |
| 2791 | type = ctx->f64; |
| 2792 | zero = ctx->f64_0; |
| 2793 | one = ctx->f64_1; |
| 2794 | } |
| 2795 | |
| 2796 | cmp = LLVMBuildFCmp(ctx->builder, LLVMRealOGT, src0, zero, ""); |
| 2797 | val = LLVMBuildSelect(ctx->builder, cmp, one, src0, ""); |
| 2798 | cmp = LLVMBuildFCmp(ctx->builder, LLVMRealOGE, val, zero, ""); |
| 2799 | val = LLVMBuildSelect(ctx->builder, cmp, val, LLVMConstReal(type, -1.0), ""); |
| 2800 | return val; |
| 2801 | } |
| 2802 | |
Samuel Pitoiset | 371c35e | 2018-09-14 12:52:32 +0200 | [diff] [blame] | 2803 | LLVMValueRef ac_build_bit_count(struct ac_llvm_context *ctx, LLVMValueRef src0) |
| 2804 | { |
| 2805 | LLVMValueRef result; |
| 2806 | unsigned bitsize; |
| 2807 | |
| 2808 | bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(src0)); |
| 2809 | |
| 2810 | switch (bitsize) { |
| 2811 | case 64: |
| 2812 | result = ac_build_intrinsic(ctx, "llvm.ctpop.i64", ctx->i64, |
| 2813 | (LLVMValueRef []) { src0 }, 1, |
| 2814 | AC_FUNC_ATTR_READNONE); |
| 2815 | |
| 2816 | result = LLVMBuildTrunc(ctx->builder, result, ctx->i32, ""); |
| 2817 | break; |
| 2818 | case 32: |
| 2819 | result = ac_build_intrinsic(ctx, "llvm.ctpop.i32", ctx->i32, |
| 2820 | (LLVMValueRef []) { src0 }, 1, |
| 2821 | AC_FUNC_ATTR_READNONE); |
| 2822 | break; |
Samuel Pitoiset | fc398f4 | 2018-09-14 12:52:38 +0200 | [diff] [blame] | 2823 | case 16: |
| 2824 | result = ac_build_intrinsic(ctx, "llvm.ctpop.i16", ctx->i16, |
| 2825 | (LLVMValueRef []) { src0 }, 1, |
| 2826 | AC_FUNC_ATTR_READNONE); |
Samuel Pitoiset | 9d13b9e | 2019-03-26 11:34:43 +0100 | [diff] [blame] | 2827 | |
| 2828 | result = LLVMBuildZExt(ctx->builder, result, ctx->i32, ""); |
Samuel Pitoiset | fc398f4 | 2018-09-14 12:52:38 +0200 | [diff] [blame] | 2829 | break; |
Samuel Pitoiset | 89cf8ca | 2019-04-01 16:18:07 +0200 | [diff] [blame] | 2830 | case 8: |
| 2831 | result = ac_build_intrinsic(ctx, "llvm.ctpop.i8", ctx->i8, |
| 2832 | (LLVMValueRef []) { src0 }, 1, |
| 2833 | AC_FUNC_ATTR_READNONE); |
| 2834 | |
| 2835 | result = LLVMBuildZExt(ctx->builder, result, ctx->i32, ""); |
| 2836 | break; |
Samuel Pitoiset | 371c35e | 2018-09-14 12:52:32 +0200 | [diff] [blame] | 2837 | default: |
| 2838 | unreachable(!"invalid bitsize"); |
| 2839 | break; |
| 2840 | } |
| 2841 | |
| 2842 | return result; |
| 2843 | } |
| 2844 | |
Samuel Pitoiset | 074e291 | 2018-09-14 12:52:33 +0200 | [diff] [blame] | 2845 | LLVMValueRef ac_build_bitfield_reverse(struct ac_llvm_context *ctx, |
| 2846 | LLVMValueRef src0) |
| 2847 | { |
| 2848 | LLVMValueRef result; |
| 2849 | unsigned bitsize; |
| 2850 | |
| 2851 | bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(src0)); |
| 2852 | |
| 2853 | switch (bitsize) { |
Samuel Pitoiset | d099bc5 | 2019-04-01 16:18:10 +0200 | [diff] [blame] | 2854 | case 64: |
| 2855 | result = ac_build_intrinsic(ctx, "llvm.bitreverse.i64", ctx->i64, |
| 2856 | (LLVMValueRef []) { src0 }, 1, |
| 2857 | AC_FUNC_ATTR_READNONE); |
| 2858 | |
| 2859 | result = LLVMBuildTrunc(ctx->builder, result, ctx->i32, ""); |
| 2860 | break; |
Samuel Pitoiset | 074e291 | 2018-09-14 12:52:33 +0200 | [diff] [blame] | 2861 | case 32: |
| 2862 | result = ac_build_intrinsic(ctx, "llvm.bitreverse.i32", ctx->i32, |
| 2863 | (LLVMValueRef []) { src0 }, 1, |
| 2864 | AC_FUNC_ATTR_READNONE); |
| 2865 | break; |
Samuel Pitoiset | cd76ce0 | 2018-09-14 12:52:39 +0200 | [diff] [blame] | 2866 | case 16: |
| 2867 | result = ac_build_intrinsic(ctx, "llvm.bitreverse.i16", ctx->i16, |
| 2868 | (LLVMValueRef []) { src0 }, 1, |
| 2869 | AC_FUNC_ATTR_READNONE); |
Samuel Pitoiset | b16dfff | 2019-03-26 11:34:44 +0100 | [diff] [blame] | 2870 | |
| 2871 | result = LLVMBuildZExt(ctx->builder, result, ctx->i32, ""); |
Samuel Pitoiset | cd76ce0 | 2018-09-14 12:52:39 +0200 | [diff] [blame] | 2872 | break; |
Samuel Pitoiset | d099bc5 | 2019-04-01 16:18:10 +0200 | [diff] [blame] | 2873 | case 8: |
| 2874 | result = ac_build_intrinsic(ctx, "llvm.bitreverse.i8", ctx->i8, |
| 2875 | (LLVMValueRef []) { src0 }, 1, |
| 2876 | AC_FUNC_ATTR_READNONE); |
| 2877 | |
| 2878 | result = LLVMBuildZExt(ctx->builder, result, ctx->i32, ""); |
| 2879 | break; |
Samuel Pitoiset | 074e291 | 2018-09-14 12:52:33 +0200 | [diff] [blame] | 2880 | default: |
| 2881 | unreachable(!"invalid bitsize"); |
| 2882 | break; |
| 2883 | } |
| 2884 | |
| 2885 | return result; |
| 2886 | } |
| 2887 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2888 | #define AC_EXP_TARGET 0 |
| 2889 | #define AC_EXP_ENABLED_CHANNELS 1 |
| 2890 | #define AC_EXP_OUT0 2 |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 2891 | |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 2892 | enum ac_ir_type { |
| 2893 | AC_IR_UNDEF, |
| 2894 | AC_IR_CONST, |
| 2895 | AC_IR_VALUE, |
| 2896 | }; |
| 2897 | |
| 2898 | struct ac_vs_exp_chan |
| 2899 | { |
| 2900 | LLVMValueRef value; |
| 2901 | float const_float; |
| 2902 | enum ac_ir_type type; |
| 2903 | }; |
| 2904 | |
| 2905 | struct ac_vs_exp_inst { |
| 2906 | unsigned offset; |
| 2907 | LLVMValueRef inst; |
| 2908 | struct ac_vs_exp_chan chan[4]; |
| 2909 | }; |
| 2910 | |
| 2911 | struct ac_vs_exports { |
| 2912 | unsigned num; |
| 2913 | struct ac_vs_exp_inst exp[VARYING_SLOT_MAX]; |
| 2914 | }; |
| 2915 | |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 2916 | /* Return true if the PARAM export has been eliminated. */ |
| 2917 | static bool ac_eliminate_const_output(uint8_t *vs_output_param_offset, |
| 2918 | uint32_t num_outputs, |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 2919 | struct ac_vs_exp_inst *exp) |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 2920 | { |
| 2921 | unsigned i, default_val; /* SPI_PS_INPUT_CNTL_i.DEFAULT_VAL */ |
| 2922 | bool is_zero[4] = {}, is_one[4] = {}; |
| 2923 | |
| 2924 | for (i = 0; i < 4; i++) { |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 2925 | /* It's a constant expression. Undef outputs are eliminated too. */ |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 2926 | if (exp->chan[i].type == AC_IR_UNDEF) { |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 2927 | is_zero[i] = true; |
| 2928 | is_one[i] = true; |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 2929 | } else if (exp->chan[i].type == AC_IR_CONST) { |
| 2930 | if (exp->chan[i].const_float == 0) |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 2931 | is_zero[i] = true; |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 2932 | else if (exp->chan[i].const_float == 1) |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 2933 | is_one[i] = true; |
| 2934 | else |
| 2935 | return false; /* other constant */ |
| 2936 | } else |
| 2937 | return false; |
| 2938 | } |
| 2939 | |
| 2940 | /* Only certain combinations of 0 and 1 can be eliminated. */ |
| 2941 | if (is_zero[0] && is_zero[1] && is_zero[2]) |
| 2942 | default_val = is_zero[3] ? 0 : 1; |
| 2943 | else if (is_one[0] && is_one[1] && is_one[2]) |
| 2944 | default_val = is_zero[3] ? 2 : 3; |
| 2945 | else |
| 2946 | return false; |
| 2947 | |
| 2948 | /* The PARAM export can be represented as DEFAULT_VAL. Kill it. */ |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 2949 | LLVMInstructionEraseFromParent(exp->inst); |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 2950 | |
| 2951 | /* Change OFFSET to DEFAULT_VAL. */ |
| 2952 | for (i = 0; i < num_outputs; i++) { |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 2953 | if (vs_output_param_offset[i] == exp->offset) { |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 2954 | vs_output_param_offset[i] = |
| 2955 | AC_EXP_PARAM_DEFAULT_VAL_0000 + default_val; |
| 2956 | break; |
| 2957 | } |
| 2958 | } |
| 2959 | return true; |
| 2960 | } |
| 2961 | |
Samuel Pitoiset | 675dde1 | 2018-03-01 11:54:21 +0100 | [diff] [blame] | 2962 | static bool ac_eliminate_duplicated_output(struct ac_llvm_context *ctx, |
| 2963 | uint8_t *vs_output_param_offset, |
Marek Olšák | b087154 | 2017-04-29 23:56:03 +0200 | [diff] [blame] | 2964 | uint32_t num_outputs, |
| 2965 | struct ac_vs_exports *processed, |
| 2966 | struct ac_vs_exp_inst *exp) |
| 2967 | { |
| 2968 | unsigned p, copy_back_channels = 0; |
| 2969 | |
| 2970 | /* See if the output is already in the list of processed outputs. |
| 2971 | * The LLVMValueRef comparison relies on SSA. |
| 2972 | */ |
| 2973 | for (p = 0; p < processed->num; p++) { |
| 2974 | bool different = false; |
| 2975 | |
| 2976 | for (unsigned j = 0; j < 4; j++) { |
| 2977 | struct ac_vs_exp_chan *c1 = &processed->exp[p].chan[j]; |
| 2978 | struct ac_vs_exp_chan *c2 = &exp->chan[j]; |
| 2979 | |
| 2980 | /* Treat undef as a match. */ |
| 2981 | if (c2->type == AC_IR_UNDEF) |
| 2982 | continue; |
| 2983 | |
| 2984 | /* If c1 is undef but c2 isn't, we can copy c2 to c1 |
| 2985 | * and consider the instruction duplicated. |
| 2986 | */ |
| 2987 | if (c1->type == AC_IR_UNDEF) { |
| 2988 | copy_back_channels |= 1 << j; |
| 2989 | continue; |
| 2990 | } |
| 2991 | |
| 2992 | /* Test whether the channels are not equal. */ |
| 2993 | if (c1->type != c2->type || |
| 2994 | (c1->type == AC_IR_CONST && |
| 2995 | c1->const_float != c2->const_float) || |
| 2996 | (c1->type == AC_IR_VALUE && |
| 2997 | c1->value != c2->value)) { |
| 2998 | different = true; |
| 2999 | break; |
| 3000 | } |
| 3001 | } |
| 3002 | if (!different) |
| 3003 | break; |
| 3004 | |
| 3005 | copy_back_channels = 0; |
| 3006 | } |
| 3007 | if (p == processed->num) |
| 3008 | return false; |
| 3009 | |
| 3010 | /* If a match was found, but the matching export has undef where the new |
| 3011 | * one has a normal value, copy the normal value to the undef channel. |
| 3012 | */ |
| 3013 | struct ac_vs_exp_inst *match = &processed->exp[p]; |
| 3014 | |
Samuel Pitoiset | 675dde1 | 2018-03-01 11:54:21 +0100 | [diff] [blame] | 3015 | /* Get current enabled channels mask. */ |
| 3016 | LLVMValueRef arg = LLVMGetOperand(match->inst, AC_EXP_ENABLED_CHANNELS); |
| 3017 | unsigned enabled_channels = LLVMConstIntGetZExtValue(arg); |
| 3018 | |
Marek Olšák | b087154 | 2017-04-29 23:56:03 +0200 | [diff] [blame] | 3019 | while (copy_back_channels) { |
| 3020 | unsigned chan = u_bit_scan(©_back_channels); |
| 3021 | |
| 3022 | assert(match->chan[chan].type == AC_IR_UNDEF); |
| 3023 | LLVMSetOperand(match->inst, AC_EXP_OUT0 + chan, |
| 3024 | exp->chan[chan].value); |
| 3025 | match->chan[chan] = exp->chan[chan]; |
Samuel Pitoiset | 675dde1 | 2018-03-01 11:54:21 +0100 | [diff] [blame] | 3026 | |
| 3027 | /* Update number of enabled channels because the original mask |
| 3028 | * is not always 0xf. |
| 3029 | */ |
| 3030 | enabled_channels |= (1 << chan); |
| 3031 | LLVMSetOperand(match->inst, AC_EXP_ENABLED_CHANNELS, |
| 3032 | LLVMConstInt(ctx->i32, enabled_channels, 0)); |
Marek Olšák | b087154 | 2017-04-29 23:56:03 +0200 | [diff] [blame] | 3033 | } |
| 3034 | |
| 3035 | /* The PARAM export is duplicated. Kill it. */ |
| 3036 | LLVMInstructionEraseFromParent(exp->inst); |
| 3037 | |
| 3038 | /* Change OFFSET to the matching export. */ |
| 3039 | for (unsigned i = 0; i < num_outputs; i++) { |
| 3040 | if (vs_output_param_offset[i] == exp->offset) { |
| 3041 | vs_output_param_offset[i] = match->offset; |
| 3042 | break; |
| 3043 | } |
| 3044 | } |
| 3045 | return true; |
| 3046 | } |
| 3047 | |
Marek Olšák | 7647e90 | 2017-04-29 23:53:08 +0200 | [diff] [blame] | 3048 | void ac_optimize_vs_outputs(struct ac_llvm_context *ctx, |
| 3049 | LLVMValueRef main_fn, |
| 3050 | uint8_t *vs_output_param_offset, |
| 3051 | uint32_t num_outputs, |
| 3052 | uint8_t *num_param_exports) |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3053 | { |
| 3054 | LLVMBasicBlockRef bb; |
| 3055 | bool removed_any = false; |
| 3056 | struct ac_vs_exports exports; |
| 3057 | |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3058 | exports.num = 0; |
| 3059 | |
| 3060 | /* Process all LLVM instructions. */ |
| 3061 | bb = LLVMGetFirstBasicBlock(main_fn); |
| 3062 | while (bb) { |
| 3063 | LLVMValueRef inst = LLVMGetFirstInstruction(bb); |
| 3064 | |
| 3065 | while (inst) { |
| 3066 | LLVMValueRef cur = inst; |
| 3067 | inst = LLVMGetNextInstruction(inst); |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3068 | struct ac_vs_exp_inst exp; |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3069 | |
| 3070 | if (LLVMGetInstructionOpcode(cur) != LLVMCall) |
| 3071 | continue; |
| 3072 | |
| 3073 | LLVMValueRef callee = ac_llvm_get_called_value(cur); |
| 3074 | |
| 3075 | if (!ac_llvm_is_function(callee)) |
| 3076 | continue; |
| 3077 | |
| 3078 | const char *name = LLVMGetValueName(callee); |
| 3079 | unsigned num_args = LLVMCountParams(callee); |
| 3080 | |
| 3081 | /* Check if this is an export instruction. */ |
| 3082 | if ((num_args != 9 && num_args != 8) || |
| 3083 | (strcmp(name, "llvm.SI.export") && |
| 3084 | strcmp(name, "llvm.amdgcn.exp.f32"))) |
| 3085 | continue; |
| 3086 | |
| 3087 | LLVMValueRef arg = LLVMGetOperand(cur, AC_EXP_TARGET); |
| 3088 | unsigned target = LLVMConstIntGetZExtValue(arg); |
| 3089 | |
| 3090 | if (target < V_008DFC_SQ_EXP_PARAM) |
| 3091 | continue; |
| 3092 | |
| 3093 | target -= V_008DFC_SQ_EXP_PARAM; |
| 3094 | |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3095 | /* Parse the instruction. */ |
| 3096 | memset(&exp, 0, sizeof(exp)); |
| 3097 | exp.offset = target; |
| 3098 | exp.inst = cur; |
| 3099 | |
| 3100 | for (unsigned i = 0; i < 4; i++) { |
| 3101 | LLVMValueRef v = LLVMGetOperand(cur, AC_EXP_OUT0 + i); |
| 3102 | |
| 3103 | exp.chan[i].value = v; |
| 3104 | |
| 3105 | if (LLVMIsUndef(v)) { |
| 3106 | exp.chan[i].type = AC_IR_UNDEF; |
| 3107 | } else if (LLVMIsAConstantFP(v)) { |
| 3108 | LLVMBool loses_info; |
| 3109 | exp.chan[i].type = AC_IR_CONST; |
| 3110 | exp.chan[i].const_float = |
| 3111 | LLVMConstRealGetDouble(v, &loses_info); |
| 3112 | } else { |
| 3113 | exp.chan[i].type = AC_IR_VALUE; |
| 3114 | } |
| 3115 | } |
| 3116 | |
Marek Olšák | b087154 | 2017-04-29 23:56:03 +0200 | [diff] [blame] | 3117 | /* Eliminate constant and duplicated PARAM exports. */ |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3118 | if (ac_eliminate_const_output(vs_output_param_offset, |
Marek Olšák | b087154 | 2017-04-29 23:56:03 +0200 | [diff] [blame] | 3119 | num_outputs, &exp) || |
Samuel Pitoiset | 675dde1 | 2018-03-01 11:54:21 +0100 | [diff] [blame] | 3120 | ac_eliminate_duplicated_output(ctx, |
| 3121 | vs_output_param_offset, |
Marek Olšák | b087154 | 2017-04-29 23:56:03 +0200 | [diff] [blame] | 3122 | num_outputs, &exports, |
| 3123 | &exp)) { |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3124 | removed_any = true; |
| 3125 | } else { |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3126 | exports.exp[exports.num++] = exp; |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3127 | } |
| 3128 | } |
| 3129 | bb = LLVMGetNextBasicBlock(bb); |
| 3130 | } |
| 3131 | |
| 3132 | /* Remove holes in export memory due to removed PARAM exports. |
| 3133 | * This is done by renumbering all PARAM exports. |
| 3134 | */ |
| 3135 | if (removed_any) { |
Marek Olšák | 34bc470 | 2017-05-08 16:37:26 +0200 | [diff] [blame] | 3136 | uint8_t old_offset[VARYING_SLOT_MAX]; |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3137 | unsigned out, i; |
| 3138 | |
| 3139 | /* Make a copy of the offsets. We need the old version while |
| 3140 | * we are modifying some of them. */ |
Marek Olšák | 34bc470 | 2017-05-08 16:37:26 +0200 | [diff] [blame] | 3141 | memcpy(old_offset, vs_output_param_offset, |
| 3142 | sizeof(old_offset)); |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3143 | |
| 3144 | for (i = 0; i < exports.num; i++) { |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3145 | unsigned offset = exports.exp[i].offset; |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3146 | |
Marek Olšák | 34bc470 | 2017-05-08 16:37:26 +0200 | [diff] [blame] | 3147 | /* Update vs_output_param_offset. Multiple outputs can |
| 3148 | * have the same offset. |
| 3149 | */ |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3150 | for (out = 0; out < num_outputs; out++) { |
Marek Olšák | 34bc470 | 2017-05-08 16:37:26 +0200 | [diff] [blame] | 3151 | if (old_offset[out] == offset) |
| 3152 | vs_output_param_offset[out] = i; |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3153 | } |
Marek Olšák | 34bc470 | 2017-05-08 16:37:26 +0200 | [diff] [blame] | 3154 | |
| 3155 | /* Change the PARAM offset in the instruction. */ |
| 3156 | LLVMSetOperand(exports.exp[i].inst, AC_EXP_TARGET, |
| 3157 | LLVMConstInt(ctx->i32, |
| 3158 | V_008DFC_SQ_EXP_PARAM + i, 0)); |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3159 | } |
Marek Olšák | 34bc470 | 2017-05-08 16:37:26 +0200 | [diff] [blame] | 3160 | *num_param_exports = exports.num; |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3161 | } |
| 3162 | } |
Dave Airlie | 1dda214 | 2017-10-19 05:29:02 +0100 | [diff] [blame] | 3163 | |
| 3164 | void ac_init_exec_full_mask(struct ac_llvm_context *ctx) |
| 3165 | { |
| 3166 | LLVMValueRef full_mask = LLVMConstInt(ctx->i64, ~0ull, 0); |
| 3167 | ac_build_intrinsic(ctx, |
| 3168 | "llvm.amdgcn.init.exec", ctx->voidt, |
| 3169 | &full_mask, 1, AC_FUNC_ATTR_CONVERGENT); |
| 3170 | } |
Dave Airlie | f925f5b | 2017-10-26 14:43:51 +1000 | [diff] [blame] | 3171 | |
| 3172 | void ac_declare_lds_as_pointer(struct ac_llvm_context *ctx) |
| 3173 | { |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 3174 | unsigned lds_size = ctx->chip_class >= GFX7 ? 65536 : 32768; |
Dave Airlie | f925f5b | 2017-10-26 14:43:51 +1000 | [diff] [blame] | 3175 | ctx->lds = LLVMBuildIntToPtr(ctx->builder, ctx->i32_0, |
Marek Olšák | a668c8d | 2018-09-07 18:44:54 -0400 | [diff] [blame] | 3176 | LLVMPointerType(LLVMArrayType(ctx->i32, lds_size / 4), AC_ADDR_SPACE_LDS), |
Dave Airlie | f925f5b | 2017-10-26 14:43:51 +1000 | [diff] [blame] | 3177 | "lds"); |
| 3178 | } |
| 3179 | |
| 3180 | LLVMValueRef ac_lds_load(struct ac_llvm_context *ctx, |
| 3181 | LLVMValueRef dw_addr) |
| 3182 | { |
Marek Olšák | 6b0b8f1 | 2019-05-09 20:58:21 -0400 | [diff] [blame] | 3183 | return LLVMBuildLoad(ctx->builder, ac_build_gep0(ctx, ctx->lds, dw_addr), ""); |
Dave Airlie | f925f5b | 2017-10-26 14:43:51 +1000 | [diff] [blame] | 3184 | } |
| 3185 | |
| 3186 | void ac_lds_store(struct ac_llvm_context *ctx, |
| 3187 | LLVMValueRef dw_addr, |
| 3188 | LLVMValueRef value) |
| 3189 | { |
| 3190 | value = ac_to_integer(ctx, value); |
| 3191 | ac_build_indexed_store(ctx, ctx->lds, |
| 3192 | dw_addr, value); |
| 3193 | } |
Dave Airlie | 82d47b9 | 2017-10-26 15:28:41 +1000 | [diff] [blame] | 3194 | |
| 3195 | LLVMValueRef ac_find_lsb(struct ac_llvm_context *ctx, |
| 3196 | LLVMTypeRef dst_type, |
| 3197 | LLVMValueRef src0) |
| 3198 | { |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3199 | unsigned src0_bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(src0)); |
| 3200 | const char *intrin_name; |
| 3201 | LLVMTypeRef type; |
| 3202 | LLVMValueRef zero; |
Samuel Pitoiset | 94dd08e | 2018-09-14 12:52:37 +0200 | [diff] [blame] | 3203 | |
| 3204 | switch (src0_bitsize) { |
| 3205 | case 64: |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3206 | intrin_name = "llvm.cttz.i64"; |
| 3207 | type = ctx->i64; |
| 3208 | zero = ctx->i64_0; |
Samuel Pitoiset | 94dd08e | 2018-09-14 12:52:37 +0200 | [diff] [blame] | 3209 | break; |
| 3210 | case 32: |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3211 | intrin_name = "llvm.cttz.i32"; |
| 3212 | type = ctx->i32; |
| 3213 | zero = ctx->i32_0; |
Samuel Pitoiset | 94dd08e | 2018-09-14 12:52:37 +0200 | [diff] [blame] | 3214 | break; |
| 3215 | case 16: |
| 3216 | intrin_name = "llvm.cttz.i16"; |
| 3217 | type = ctx->i16; |
| 3218 | zero = ctx->i16_0; |
| 3219 | break; |
Samuel Pitoiset | a45d9e3 | 2019-04-01 16:18:08 +0200 | [diff] [blame] | 3220 | case 8: |
| 3221 | intrin_name = "llvm.cttz.i8"; |
| 3222 | type = ctx->i8; |
| 3223 | zero = ctx->i8_0; |
| 3224 | break; |
Samuel Pitoiset | 94dd08e | 2018-09-14 12:52:37 +0200 | [diff] [blame] | 3225 | default: |
| 3226 | unreachable(!"invalid bitsize"); |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3227 | } |
| 3228 | |
Dave Airlie | 82d47b9 | 2017-10-26 15:28:41 +1000 | [diff] [blame] | 3229 | LLVMValueRef params[2] = { |
| 3230 | src0, |
| 3231 | |
| 3232 | /* The value of 1 means that ffs(x=0) = undef, so LLVM won't |
| 3233 | * add special code to check for x=0. The reason is that |
| 3234 | * the LLVM behavior for x=0 is different from what we |
| 3235 | * need here. However, LLVM also assumes that ffs(x) is |
| 3236 | * in [0, 31], but GLSL expects that ffs(0) = -1, so |
| 3237 | * a conditional assignment to handle 0 is still required. |
| 3238 | * |
| 3239 | * The hardware already implements the correct behavior. |
| 3240 | */ |
Marek Olšák | cc36ebb | 2018-08-29 00:15:16 -0400 | [diff] [blame] | 3241 | ctx->i1true, |
Dave Airlie | 82d47b9 | 2017-10-26 15:28:41 +1000 | [diff] [blame] | 3242 | }; |
| 3243 | |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3244 | LLVMValueRef lsb = ac_build_intrinsic(ctx, intrin_name, type, |
Dave Airlie | 82d47b9 | 2017-10-26 15:28:41 +1000 | [diff] [blame] | 3245 | params, 2, |
| 3246 | AC_FUNC_ATTR_READNONE); |
| 3247 | |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3248 | if (src0_bitsize == 64) { |
| 3249 | lsb = LLVMBuildTrunc(ctx->builder, lsb, ctx->i32, ""); |
Samuel Pitoiset | a45d9e3 | 2019-04-01 16:18:08 +0200 | [diff] [blame] | 3250 | } else if (src0_bitsize < 32) { |
Samuel Pitoiset | 7a088d1 | 2019-03-26 11:34:45 +0100 | [diff] [blame] | 3251 | lsb = LLVMBuildSExt(ctx->builder, lsb, ctx->i32, ""); |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3252 | } |
| 3253 | |
Dave Airlie | 82d47b9 | 2017-10-26 15:28:41 +1000 | [diff] [blame] | 3254 | /* TODO: We need an intrinsic to skip this conditional. */ |
| 3255 | /* Check for zero: */ |
| 3256 | return LLVMBuildSelect(ctx->builder, LLVMBuildICmp(ctx->builder, |
| 3257 | LLVMIntEQ, src0, |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3258 | zero, ""), |
Dave Airlie | 82d47b9 | 2017-10-26 15:28:41 +1000 | [diff] [blame] | 3259 | LLVMConstInt(ctx->i32, -1, 0), lsb, ""); |
| 3260 | } |
Marek Olšák | b633999 | 2017-12-31 23:35:59 +0100 | [diff] [blame] | 3261 | |
| 3262 | LLVMTypeRef ac_array_in_const_addr_space(LLVMTypeRef elem_type) |
| 3263 | { |
Marek Olšák | 6b0b8f1 | 2019-05-09 20:58:21 -0400 | [diff] [blame] | 3264 | return LLVMPointerType(elem_type, AC_ADDR_SPACE_CONST); |
Marek Olšák | b633999 | 2017-12-31 23:35:59 +0100 | [diff] [blame] | 3265 | } |
Marek Olšák | 931ec80 | 2018-01-01 21:04:22 +0100 | [diff] [blame] | 3266 | |
| 3267 | LLVMTypeRef ac_array_in_const32_addr_space(LLVMTypeRef elem_type) |
| 3268 | { |
Marek Olšák | 6b0b8f1 | 2019-05-09 20:58:21 -0400 | [diff] [blame] | 3269 | return LLVMPointerType(elem_type, AC_ADDR_SPACE_CONST_32BIT); |
Marek Olšák | 931ec80 | 2018-01-01 21:04:22 +0100 | [diff] [blame] | 3270 | } |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3271 | |
| 3272 | static struct ac_llvm_flow * |
| 3273 | get_current_flow(struct ac_llvm_context *ctx) |
| 3274 | { |
Marek Olšák | f6eca14 | 2019-07-24 17:19:38 -0400 | [diff] [blame] | 3275 | if (ctx->flow->depth > 0) |
| 3276 | return &ctx->flow->stack[ctx->flow->depth - 1]; |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3277 | return NULL; |
| 3278 | } |
| 3279 | |
| 3280 | static struct ac_llvm_flow * |
| 3281 | get_innermost_loop(struct ac_llvm_context *ctx) |
| 3282 | { |
Marek Olšák | f6eca14 | 2019-07-24 17:19:38 -0400 | [diff] [blame] | 3283 | for (unsigned i = ctx->flow->depth; i > 0; --i) { |
| 3284 | if (ctx->flow->stack[i - 1].loop_entry_block) |
| 3285 | return &ctx->flow->stack[i - 1]; |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3286 | } |
| 3287 | return NULL; |
| 3288 | } |
| 3289 | |
| 3290 | static struct ac_llvm_flow * |
| 3291 | push_flow(struct ac_llvm_context *ctx) |
| 3292 | { |
| 3293 | struct ac_llvm_flow *flow; |
| 3294 | |
Marek Olšák | f6eca14 | 2019-07-24 17:19:38 -0400 | [diff] [blame] | 3295 | if (ctx->flow->depth >= ctx->flow->depth_max) { |
| 3296 | unsigned new_max = MAX2(ctx->flow->depth << 1, |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3297 | AC_LLVM_INITIAL_CF_DEPTH); |
| 3298 | |
Marek Olšák | f6eca14 | 2019-07-24 17:19:38 -0400 | [diff] [blame] | 3299 | ctx->flow->stack = realloc(ctx->flow->stack, new_max * sizeof(*ctx->flow->stack)); |
| 3300 | ctx->flow->depth_max = new_max; |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3301 | } |
| 3302 | |
Marek Olšák | f6eca14 | 2019-07-24 17:19:38 -0400 | [diff] [blame] | 3303 | flow = &ctx->flow->stack[ctx->flow->depth]; |
| 3304 | ctx->flow->depth++; |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3305 | |
| 3306 | flow->next_block = NULL; |
| 3307 | flow->loop_entry_block = NULL; |
| 3308 | return flow; |
| 3309 | } |
| 3310 | |
| 3311 | static void set_basicblock_name(LLVMBasicBlockRef bb, const char *base, |
| 3312 | int label_id) |
| 3313 | { |
| 3314 | char buf[32]; |
| 3315 | snprintf(buf, sizeof(buf), "%s%d", base, label_id); |
| 3316 | LLVMSetValueName(LLVMBasicBlockAsValue(bb), buf); |
| 3317 | } |
| 3318 | |
| 3319 | /* Append a basic block at the level of the parent flow. |
| 3320 | */ |
| 3321 | static LLVMBasicBlockRef append_basic_block(struct ac_llvm_context *ctx, |
| 3322 | const char *name) |
| 3323 | { |
Marek Olšák | f6eca14 | 2019-07-24 17:19:38 -0400 | [diff] [blame] | 3324 | assert(ctx->flow->depth >= 1); |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3325 | |
Marek Olšák | f6eca14 | 2019-07-24 17:19:38 -0400 | [diff] [blame] | 3326 | if (ctx->flow->depth >= 2) { |
| 3327 | struct ac_llvm_flow *flow = &ctx->flow->stack[ctx->flow->depth - 2]; |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3328 | |
| 3329 | return LLVMInsertBasicBlockInContext(ctx->context, |
| 3330 | flow->next_block, name); |
| 3331 | } |
| 3332 | |
| 3333 | LLVMValueRef main_fn = |
| 3334 | LLVMGetBasicBlockParent(LLVMGetInsertBlock(ctx->builder)); |
| 3335 | return LLVMAppendBasicBlockInContext(ctx->context, main_fn, name); |
| 3336 | } |
| 3337 | |
| 3338 | /* Emit a branch to the given default target for the current block if |
| 3339 | * applicable -- that is, if the current block does not already contain a |
| 3340 | * branch from a break or continue. |
| 3341 | */ |
| 3342 | static void emit_default_branch(LLVMBuilderRef builder, |
| 3343 | LLVMBasicBlockRef target) |
| 3344 | { |
| 3345 | if (!LLVMGetBasicBlockTerminator(LLVMGetInsertBlock(builder))) |
| 3346 | LLVMBuildBr(builder, target); |
| 3347 | } |
| 3348 | |
| 3349 | void ac_build_bgnloop(struct ac_llvm_context *ctx, int label_id) |
| 3350 | { |
| 3351 | struct ac_llvm_flow *flow = push_flow(ctx); |
| 3352 | flow->loop_entry_block = append_basic_block(ctx, "LOOP"); |
| 3353 | flow->next_block = append_basic_block(ctx, "ENDLOOP"); |
| 3354 | set_basicblock_name(flow->loop_entry_block, "loop", label_id); |
| 3355 | LLVMBuildBr(ctx->builder, flow->loop_entry_block); |
| 3356 | LLVMPositionBuilderAtEnd(ctx->builder, flow->loop_entry_block); |
| 3357 | } |
| 3358 | |
| 3359 | void ac_build_break(struct ac_llvm_context *ctx) |
| 3360 | { |
| 3361 | struct ac_llvm_flow *flow = get_innermost_loop(ctx); |
| 3362 | LLVMBuildBr(ctx->builder, flow->next_block); |
| 3363 | } |
| 3364 | |
| 3365 | void ac_build_continue(struct ac_llvm_context *ctx) |
| 3366 | { |
| 3367 | struct ac_llvm_flow *flow = get_innermost_loop(ctx); |
| 3368 | LLVMBuildBr(ctx->builder, flow->loop_entry_block); |
| 3369 | } |
| 3370 | |
| 3371 | void ac_build_else(struct ac_llvm_context *ctx, int label_id) |
| 3372 | { |
| 3373 | struct ac_llvm_flow *current_branch = get_current_flow(ctx); |
| 3374 | LLVMBasicBlockRef endif_block; |
| 3375 | |
| 3376 | assert(!current_branch->loop_entry_block); |
| 3377 | |
| 3378 | endif_block = append_basic_block(ctx, "ENDIF"); |
| 3379 | emit_default_branch(ctx->builder, endif_block); |
| 3380 | |
| 3381 | LLVMPositionBuilderAtEnd(ctx->builder, current_branch->next_block); |
| 3382 | set_basicblock_name(current_branch->next_block, "else", label_id); |
| 3383 | |
| 3384 | current_branch->next_block = endif_block; |
| 3385 | } |
| 3386 | |
| 3387 | void ac_build_endif(struct ac_llvm_context *ctx, int label_id) |
| 3388 | { |
| 3389 | struct ac_llvm_flow *current_branch = get_current_flow(ctx); |
| 3390 | |
| 3391 | assert(!current_branch->loop_entry_block); |
| 3392 | |
| 3393 | emit_default_branch(ctx->builder, current_branch->next_block); |
| 3394 | LLVMPositionBuilderAtEnd(ctx->builder, current_branch->next_block); |
| 3395 | set_basicblock_name(current_branch->next_block, "endif", label_id); |
| 3396 | |
Marek Olšák | f6eca14 | 2019-07-24 17:19:38 -0400 | [diff] [blame] | 3397 | ctx->flow->depth--; |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3398 | } |
| 3399 | |
| 3400 | void ac_build_endloop(struct ac_llvm_context *ctx, int label_id) |
| 3401 | { |
| 3402 | struct ac_llvm_flow *current_loop = get_current_flow(ctx); |
| 3403 | |
| 3404 | assert(current_loop->loop_entry_block); |
| 3405 | |
| 3406 | emit_default_branch(ctx->builder, current_loop->loop_entry_block); |
| 3407 | |
| 3408 | LLVMPositionBuilderAtEnd(ctx->builder, current_loop->next_block); |
| 3409 | set_basicblock_name(current_loop->next_block, "endloop", label_id); |
Marek Olšák | f6eca14 | 2019-07-24 17:19:38 -0400 | [diff] [blame] | 3410 | ctx->flow->depth--; |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3411 | } |
| 3412 | |
Nicolai Hähnle | 3963402 | 2018-05-23 22:04:20 +0200 | [diff] [blame] | 3413 | void ac_build_ifcc(struct ac_llvm_context *ctx, LLVMValueRef cond, int label_id) |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3414 | { |
| 3415 | struct ac_llvm_flow *flow = push_flow(ctx); |
| 3416 | LLVMBasicBlockRef if_block; |
| 3417 | |
| 3418 | if_block = append_basic_block(ctx, "IF"); |
| 3419 | flow->next_block = append_basic_block(ctx, "ELSE"); |
| 3420 | set_basicblock_name(if_block, "if", label_id); |
| 3421 | LLVMBuildCondBr(ctx->builder, cond, if_block, flow->next_block); |
| 3422 | LLVMPositionBuilderAtEnd(ctx->builder, if_block); |
| 3423 | } |
| 3424 | |
| 3425 | void ac_build_if(struct ac_llvm_context *ctx, LLVMValueRef value, |
| 3426 | int label_id) |
| 3427 | { |
| 3428 | LLVMValueRef cond = LLVMBuildFCmp(ctx->builder, LLVMRealUNE, |
| 3429 | value, ctx->f32_0, ""); |
Nicolai Hähnle | 3963402 | 2018-05-23 22:04:20 +0200 | [diff] [blame] | 3430 | ac_build_ifcc(ctx, cond, label_id); |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3431 | } |
| 3432 | |
| 3433 | void ac_build_uif(struct ac_llvm_context *ctx, LLVMValueRef value, |
| 3434 | int label_id) |
| 3435 | { |
| 3436 | LLVMValueRef cond = LLVMBuildICmp(ctx->builder, LLVMIntNE, |
| 3437 | ac_to_integer(ctx, value), |
| 3438 | ctx->i32_0, ""); |
Nicolai Hähnle | 3963402 | 2018-05-23 22:04:20 +0200 | [diff] [blame] | 3439 | ac_build_ifcc(ctx, cond, label_id); |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3440 | } |
Samuel Pitoiset | bf63682 | 2018-03-09 16:22:44 +0100 | [diff] [blame] | 3441 | |
Marek Olšák | 82f5f89 | 2018-09-21 03:27:06 -0400 | [diff] [blame] | 3442 | LLVMValueRef ac_build_alloca_undef(struct ac_llvm_context *ac, LLVMTypeRef type, |
Samuel Pitoiset | bf63682 | 2018-03-09 16:22:44 +0100 | [diff] [blame] | 3443 | const char *name) |
| 3444 | { |
| 3445 | LLVMBuilderRef builder = ac->builder; |
| 3446 | LLVMBasicBlockRef current_block = LLVMGetInsertBlock(builder); |
| 3447 | LLVMValueRef function = LLVMGetBasicBlockParent(current_block); |
| 3448 | LLVMBasicBlockRef first_block = LLVMGetEntryBasicBlock(function); |
| 3449 | LLVMValueRef first_instr = LLVMGetFirstInstruction(first_block); |
| 3450 | LLVMBuilderRef first_builder = LLVMCreateBuilderInContext(ac->context); |
| 3451 | LLVMValueRef res; |
| 3452 | |
| 3453 | if (first_instr) { |
| 3454 | LLVMPositionBuilderBefore(first_builder, first_instr); |
| 3455 | } else { |
| 3456 | LLVMPositionBuilderAtEnd(first_builder, first_block); |
| 3457 | } |
| 3458 | |
| 3459 | res = LLVMBuildAlloca(first_builder, type, name); |
Samuel Pitoiset | bf63682 | 2018-03-09 16:22:44 +0100 | [diff] [blame] | 3460 | LLVMDisposeBuilder(first_builder); |
Samuel Pitoiset | bf63682 | 2018-03-09 16:22:44 +0100 | [diff] [blame] | 3461 | return res; |
| 3462 | } |
| 3463 | |
Marek Olšák | 82f5f89 | 2018-09-21 03:27:06 -0400 | [diff] [blame] | 3464 | LLVMValueRef ac_build_alloca(struct ac_llvm_context *ac, |
Samuel Pitoiset | bf63682 | 2018-03-09 16:22:44 +0100 | [diff] [blame] | 3465 | LLVMTypeRef type, const char *name) |
| 3466 | { |
Marek Olšák | 82f5f89 | 2018-09-21 03:27:06 -0400 | [diff] [blame] | 3467 | LLVMValueRef ptr = ac_build_alloca_undef(ac, type, name); |
| 3468 | LLVMBuildStore(ac->builder, LLVMConstNull(type), ptr); |
Samuel Pitoiset | bf63682 | 2018-03-09 16:22:44 +0100 | [diff] [blame] | 3469 | return ptr; |
| 3470 | } |
Samuel Pitoiset | 895632b | 2018-03-09 16:26:34 +0100 | [diff] [blame] | 3471 | |
| 3472 | LLVMValueRef ac_cast_ptr(struct ac_llvm_context *ctx, LLVMValueRef ptr, |
| 3473 | LLVMTypeRef type) |
| 3474 | { |
| 3475 | int addr_space = LLVMGetPointerAddressSpace(LLVMTypeOf(ptr)); |
| 3476 | return LLVMBuildBitCast(ctx->builder, ptr, |
| 3477 | LLVMPointerType(type, addr_space), ""); |
| 3478 | } |
Samuel Pitoiset | 28bb687 | 2018-03-09 16:36:31 +0100 | [diff] [blame] | 3479 | |
| 3480 | LLVMValueRef ac_trim_vector(struct ac_llvm_context *ctx, LLVMValueRef value, |
| 3481 | unsigned count) |
| 3482 | { |
| 3483 | unsigned num_components = ac_get_llvm_num_components(value); |
| 3484 | if (count == num_components) |
| 3485 | return value; |
| 3486 | |
Rhys Perry | 12dc7cb | 2018-12-05 13:42:47 +0000 | [diff] [blame] | 3487 | LLVMValueRef masks[MAX2(count, 2)]; |
| 3488 | masks[0] = ctx->i32_0; |
| 3489 | masks[1] = ctx->i32_1; |
| 3490 | for (unsigned i = 2; i < count; i++) |
| 3491 | masks[i] = LLVMConstInt(ctx->i32, i, false); |
Samuel Pitoiset | 28bb687 | 2018-03-09 16:36:31 +0100 | [diff] [blame] | 3492 | |
| 3493 | if (count == 1) |
| 3494 | return LLVMBuildExtractElement(ctx->builder, value, masks[0], |
| 3495 | ""); |
| 3496 | |
| 3497 | LLVMValueRef swizzle = LLVMConstVector(masks, count); |
| 3498 | return LLVMBuildShuffleVector(ctx->builder, value, value, swizzle, ""); |
| 3499 | } |
Samuel Pitoiset | 61a91ca | 2018-03-09 16:39:35 +0100 | [diff] [blame] | 3500 | |
| 3501 | LLVMValueRef ac_unpack_param(struct ac_llvm_context *ctx, LLVMValueRef param, |
| 3502 | unsigned rshift, unsigned bitwidth) |
| 3503 | { |
| 3504 | LLVMValueRef value = param; |
| 3505 | if (rshift) |
| 3506 | value = LLVMBuildLShr(ctx->builder, value, |
| 3507 | LLVMConstInt(ctx->i32, rshift, false), ""); |
| 3508 | |
| 3509 | if (rshift + bitwidth < 32) { |
| 3510 | unsigned mask = (1 << bitwidth) - 1; |
| 3511 | value = LLVMBuildAnd(ctx->builder, value, |
| 3512 | LLVMConstInt(ctx->i32, mask, false), ""); |
| 3513 | } |
| 3514 | return value; |
| 3515 | } |
Marek Olšák | dc04e4b | 2018-03-20 19:14:57 -0400 | [diff] [blame] | 3516 | |
| 3517 | /* Adjust the sample index according to FMASK. |
| 3518 | * |
| 3519 | * For uncompressed MSAA surfaces, FMASK should return 0x76543210, |
| 3520 | * which is the identity mapping. Each nibble says which physical sample |
| 3521 | * should be fetched to get that sample. |
| 3522 | * |
| 3523 | * For example, 0x11111100 means there are only 2 samples stored and |
| 3524 | * the second sample covers 3/4 of the pixel. When reading samples 0 |
| 3525 | * and 1, return physical sample 0 (determined by the first two 0s |
| 3526 | * in FMASK), otherwise return physical sample 1. |
| 3527 | * |
| 3528 | * The sample index should be adjusted as follows: |
| 3529 | * addr[sample_index] = (fmask >> (addr[sample_index] * 4)) & 0xF; |
| 3530 | */ |
| 3531 | void ac_apply_fmask_to_sample(struct ac_llvm_context *ac, LLVMValueRef fmask, |
| 3532 | LLVMValueRef *addr, bool is_array_tex) |
| 3533 | { |
| 3534 | struct ac_image_args fmask_load = {}; |
| 3535 | fmask_load.opcode = ac_image_load; |
| 3536 | fmask_load.resource = fmask; |
| 3537 | fmask_load.dmask = 0xf; |
Nicolai Hähnle | f931583 | 2018-02-16 14:21:56 +0100 | [diff] [blame] | 3538 | fmask_load.dim = is_array_tex ? ac_image_2darray : ac_image_2d; |
Marek Olšák | 971bc10 | 2019-04-10 21:24:18 -0400 | [diff] [blame] | 3539 | fmask_load.attributes = AC_FUNC_ATTR_READNONE; |
Marek Olšák | dc04e4b | 2018-03-20 19:14:57 -0400 | [diff] [blame] | 3540 | |
Nicolai Hähnle | 625dcbb | 2018-03-23 11:20:24 +0100 | [diff] [blame] | 3541 | fmask_load.coords[0] = addr[0]; |
| 3542 | fmask_load.coords[1] = addr[1]; |
| 3543 | if (is_array_tex) |
| 3544 | fmask_load.coords[2] = addr[2]; |
Marek Olšák | dc04e4b | 2018-03-20 19:14:57 -0400 | [diff] [blame] | 3545 | |
| 3546 | LLVMValueRef fmask_value = ac_build_image_opcode(ac, &fmask_load); |
| 3547 | fmask_value = LLVMBuildExtractElement(ac->builder, fmask_value, |
| 3548 | ac->i32_0, ""); |
| 3549 | |
| 3550 | /* Apply the formula. */ |
| 3551 | unsigned sample_chan = is_array_tex ? 3 : 2; |
| 3552 | LLVMValueRef final_sample; |
| 3553 | final_sample = LLVMBuildMul(ac->builder, addr[sample_chan], |
| 3554 | LLVMConstInt(ac->i32, 4, 0), ""); |
| 3555 | final_sample = LLVMBuildLShr(ac->builder, fmask_value, final_sample, ""); |
Marek Olšák | e5e57c3 | 2018-05-17 23:23:24 -0400 | [diff] [blame] | 3556 | /* Mask the sample index by 0x7, because 0x8 means an unknown value |
| 3557 | * with EQAA, so those will map to 0. */ |
Marek Olšák | dc04e4b | 2018-03-20 19:14:57 -0400 | [diff] [blame] | 3558 | final_sample = LLVMBuildAnd(ac->builder, final_sample, |
Marek Olšák | e5e57c3 | 2018-05-17 23:23:24 -0400 | [diff] [blame] | 3559 | LLVMConstInt(ac->i32, 0x7, 0), ""); |
Marek Olšák | dc04e4b | 2018-03-20 19:14:57 -0400 | [diff] [blame] | 3560 | |
| 3561 | /* Don't rewrite the sample index if WORD1.DATA_FORMAT of the FMASK |
Marek Olšák | e5e57c3 | 2018-05-17 23:23:24 -0400 | [diff] [blame] | 3562 | * resource descriptor is 0 (invalid). |
Marek Olšák | dc04e4b | 2018-03-20 19:14:57 -0400 | [diff] [blame] | 3563 | */ |
| 3564 | LLVMValueRef tmp; |
| 3565 | tmp = LLVMBuildBitCast(ac->builder, fmask, ac->v8i32, ""); |
| 3566 | tmp = LLVMBuildExtractElement(ac->builder, tmp, ac->i32_1, ""); |
| 3567 | tmp = LLVMBuildICmp(ac->builder, LLVMIntNE, tmp, ac->i32_0, ""); |
| 3568 | |
| 3569 | /* Replace the MSAA sample index. */ |
| 3570 | addr[sample_chan] = LLVMBuildSelect(ac->builder, tmp, final_sample, |
| 3571 | addr[sample_chan], ""); |
| 3572 | } |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3573 | |
| 3574 | static LLVMValueRef |
| 3575 | _ac_build_readlane(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef lane) |
| 3576 | { |
Samuel Pitoiset | c29514b | 2019-11-08 13:00:50 +0100 | [diff] [blame] | 3577 | LLVMTypeRef type = LLVMTypeOf(src); |
| 3578 | LLVMValueRef result; |
| 3579 | |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3580 | ac_build_optimization_barrier(ctx, &src); |
Samuel Pitoiset | c29514b | 2019-11-08 13:00:50 +0100 | [diff] [blame] | 3581 | |
| 3582 | src = LLVMBuildZExt(ctx->builder, src, ctx->i32, ""); |
| 3583 | if (lane) |
| 3584 | lane = LLVMBuildZExt(ctx->builder, lane, ctx->i32, ""); |
| 3585 | |
| 3586 | result = ac_build_intrinsic(ctx, |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3587 | lane == NULL ? "llvm.amdgcn.readfirstlane" : "llvm.amdgcn.readlane", |
Samuel Pitoiset | c29514b | 2019-11-08 13:00:50 +0100 | [diff] [blame] | 3588 | ctx->i32, (LLVMValueRef []) { src, lane }, |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3589 | lane == NULL ? 1 : 2, |
| 3590 | AC_FUNC_ATTR_READNONE | |
| 3591 | AC_FUNC_ATTR_CONVERGENT); |
Samuel Pitoiset | c29514b | 2019-11-08 13:00:50 +0100 | [diff] [blame] | 3592 | |
| 3593 | return LLVMBuildTrunc(ctx->builder, result, type, ""); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3594 | } |
| 3595 | |
| 3596 | /** |
| 3597 | * Builds the "llvm.amdgcn.readlane" or "llvm.amdgcn.readfirstlane" intrinsic. |
| 3598 | * @param ctx |
| 3599 | * @param src |
| 3600 | * @param lane - id of the lane or NULL for the first active lane |
| 3601 | * @return value of the lane |
| 3602 | */ |
| 3603 | LLVMValueRef |
| 3604 | ac_build_readlane(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef lane) |
| 3605 | { |
| 3606 | LLVMTypeRef src_type = LLVMTypeOf(src); |
| 3607 | src = ac_to_integer(ctx, src); |
| 3608 | unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src)); |
| 3609 | LLVMValueRef ret; |
| 3610 | |
Samuel Pitoiset | c29514b | 2019-11-08 13:00:50 +0100 | [diff] [blame] | 3611 | if (bits > 32) { |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3612 | assert(bits % 32 == 0); |
| 3613 | LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32); |
| 3614 | LLVMValueRef src_vector = |
| 3615 | LLVMBuildBitCast(ctx->builder, src, vec_type, ""); |
| 3616 | ret = LLVMGetUndef(vec_type); |
| 3617 | for (unsigned i = 0; i < bits / 32; i++) { |
| 3618 | src = LLVMBuildExtractElement(ctx->builder, src_vector, |
| 3619 | LLVMConstInt(ctx->i32, i, 0), ""); |
| 3620 | LLVMValueRef ret_comp = _ac_build_readlane(ctx, src, lane); |
| 3621 | ret = LLVMBuildInsertElement(ctx->builder, ret, ret_comp, |
| 3622 | LLVMConstInt(ctx->i32, i, 0), ""); |
| 3623 | } |
Samuel Pitoiset | c29514b | 2019-11-08 13:00:50 +0100 | [diff] [blame] | 3624 | } else { |
| 3625 | ret = _ac_build_readlane(ctx, src, lane); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3626 | } |
Samuel Pitoiset | c29514b | 2019-11-08 13:00:50 +0100 | [diff] [blame] | 3627 | |
Bas Nieuwenhuizen | 2af00b1 | 2019-07-28 22:32:33 +0200 | [diff] [blame] | 3628 | if (LLVMGetTypeKind(src_type) == LLVMPointerTypeKind) |
| 3629 | return LLVMBuildIntToPtr(ctx->builder, ret, src_type, ""); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3630 | return LLVMBuildBitCast(ctx->builder, ret, src_type, ""); |
| 3631 | } |
| 3632 | |
| 3633 | LLVMValueRef |
| 3634 | ac_build_writelane(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef value, LLVMValueRef lane) |
| 3635 | { |
Samuel Pitoiset | 1fd60db | 2019-08-01 11:18:43 +0200 | [diff] [blame] | 3636 | return ac_build_intrinsic(ctx, "llvm.amdgcn.writelane", ctx->i32, |
| 3637 | (LLVMValueRef []) {value, lane, src}, 3, |
| 3638 | AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3639 | } |
| 3640 | |
| 3641 | LLVMValueRef |
| 3642 | ac_build_mbcnt(struct ac_llvm_context *ctx, LLVMValueRef mask) |
| 3643 | { |
Marek Olšák | 54e6900 | 2019-07-16 00:55:46 -0400 | [diff] [blame] | 3644 | if (ctx->wave_size == 32) { |
| 3645 | return ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.lo", ctx->i32, |
| 3646 | (LLVMValueRef []) { mask, ctx->i32_0 }, |
| 3647 | 2, AC_FUNC_ATTR_READNONE); |
| 3648 | } |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3649 | LLVMValueRef mask_vec = LLVMBuildBitCast(ctx->builder, mask, |
| 3650 | LLVMVectorType(ctx->i32, 2), |
| 3651 | ""); |
| 3652 | LLVMValueRef mask_lo = LLVMBuildExtractElement(ctx->builder, mask_vec, |
| 3653 | ctx->i32_0, ""); |
| 3654 | LLVMValueRef mask_hi = LLVMBuildExtractElement(ctx->builder, mask_vec, |
| 3655 | ctx->i32_1, ""); |
| 3656 | LLVMValueRef val = |
| 3657 | ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.lo", ctx->i32, |
| 3658 | (LLVMValueRef []) { mask_lo, ctx->i32_0 }, |
| 3659 | 2, AC_FUNC_ATTR_READNONE); |
| 3660 | val = ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.hi", ctx->i32, |
| 3661 | (LLVMValueRef []) { mask_hi, val }, |
| 3662 | 2, AC_FUNC_ATTR_READNONE); |
| 3663 | return val; |
| 3664 | } |
| 3665 | |
| 3666 | enum dpp_ctrl { |
| 3667 | _dpp_quad_perm = 0x000, |
| 3668 | _dpp_row_sl = 0x100, |
| 3669 | _dpp_row_sr = 0x110, |
| 3670 | _dpp_row_rr = 0x120, |
| 3671 | dpp_wf_sl1 = 0x130, |
| 3672 | dpp_wf_rl1 = 0x134, |
| 3673 | dpp_wf_sr1 = 0x138, |
| 3674 | dpp_wf_rr1 = 0x13C, |
| 3675 | dpp_row_mirror = 0x140, |
| 3676 | dpp_row_half_mirror = 0x141, |
| 3677 | dpp_row_bcast15 = 0x142, |
| 3678 | dpp_row_bcast31 = 0x143 |
| 3679 | }; |
| 3680 | |
| 3681 | static inline enum dpp_ctrl |
| 3682 | dpp_quad_perm(unsigned lane0, unsigned lane1, unsigned lane2, unsigned lane3) |
| 3683 | { |
| 3684 | assert(lane0 < 4 && lane1 < 4 && lane2 < 4 && lane3 < 4); |
| 3685 | return _dpp_quad_perm | lane0 | (lane1 << 2) | (lane2 << 4) | (lane3 << 6); |
| 3686 | } |
| 3687 | |
| 3688 | static inline enum dpp_ctrl |
| 3689 | dpp_row_sl(unsigned amount) |
| 3690 | { |
| 3691 | assert(amount > 0 && amount < 16); |
| 3692 | return _dpp_row_sl | amount; |
| 3693 | } |
| 3694 | |
| 3695 | static inline enum dpp_ctrl |
| 3696 | dpp_row_sr(unsigned amount) |
| 3697 | { |
| 3698 | assert(amount > 0 && amount < 16); |
| 3699 | return _dpp_row_sr | amount; |
| 3700 | } |
| 3701 | |
| 3702 | static LLVMValueRef |
| 3703 | _ac_build_dpp(struct ac_llvm_context *ctx, LLVMValueRef old, LLVMValueRef src, |
| 3704 | enum dpp_ctrl dpp_ctrl, unsigned row_mask, unsigned bank_mask, |
| 3705 | bool bound_ctrl) |
| 3706 | { |
Samuel Pitoiset | 1565118 | 2019-11-08 14:27:15 +0100 | [diff] [blame] | 3707 | LLVMTypeRef type = LLVMTypeOf(src); |
| 3708 | LLVMValueRef res; |
| 3709 | |
| 3710 | old = LLVMBuildZExt(ctx->builder, old, ctx->i32, ""); |
| 3711 | src = LLVMBuildZExt(ctx->builder, src, ctx->i32, ""); |
| 3712 | |
| 3713 | res = ac_build_intrinsic(ctx, "llvm.amdgcn.update.dpp.i32", ctx->i32, |
| 3714 | (LLVMValueRef[]) { |
| 3715 | old, src, |
| 3716 | LLVMConstInt(ctx->i32, dpp_ctrl, 0), |
| 3717 | LLVMConstInt(ctx->i32, row_mask, 0), |
| 3718 | LLVMConstInt(ctx->i32, bank_mask, 0), |
| 3719 | LLVMConstInt(ctx->i1, bound_ctrl, 0) }, |
| 3720 | 6, AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT); |
| 3721 | |
| 3722 | return LLVMBuildTrunc(ctx->builder, res, type, ""); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3723 | } |
| 3724 | |
| 3725 | static LLVMValueRef |
| 3726 | ac_build_dpp(struct ac_llvm_context *ctx, LLVMValueRef old, LLVMValueRef src, |
| 3727 | enum dpp_ctrl dpp_ctrl, unsigned row_mask, unsigned bank_mask, |
| 3728 | bool bound_ctrl) |
| 3729 | { |
| 3730 | LLVMTypeRef src_type = LLVMTypeOf(src); |
| 3731 | src = ac_to_integer(ctx, src); |
| 3732 | old = ac_to_integer(ctx, old); |
| 3733 | unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src)); |
| 3734 | LLVMValueRef ret; |
Samuel Pitoiset | 1565118 | 2019-11-08 14:27:15 +0100 | [diff] [blame] | 3735 | if (bits > 32) { |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3736 | assert(bits % 32 == 0); |
| 3737 | LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32); |
| 3738 | LLVMValueRef src_vector = |
| 3739 | LLVMBuildBitCast(ctx->builder, src, vec_type, ""); |
| 3740 | LLVMValueRef old_vector = |
| 3741 | LLVMBuildBitCast(ctx->builder, old, vec_type, ""); |
| 3742 | ret = LLVMGetUndef(vec_type); |
| 3743 | for (unsigned i = 0; i < bits / 32; i++) { |
| 3744 | src = LLVMBuildExtractElement(ctx->builder, src_vector, |
| 3745 | LLVMConstInt(ctx->i32, i, |
| 3746 | 0), ""); |
| 3747 | old = LLVMBuildExtractElement(ctx->builder, old_vector, |
| 3748 | LLVMConstInt(ctx->i32, i, |
| 3749 | 0), ""); |
| 3750 | LLVMValueRef ret_comp = _ac_build_dpp(ctx, old, src, |
| 3751 | dpp_ctrl, |
| 3752 | row_mask, |
| 3753 | bank_mask, |
| 3754 | bound_ctrl); |
| 3755 | ret = LLVMBuildInsertElement(ctx->builder, ret, |
| 3756 | ret_comp, |
| 3757 | LLVMConstInt(ctx->i32, i, |
| 3758 | 0), ""); |
| 3759 | } |
Samuel Pitoiset | 1565118 | 2019-11-08 14:27:15 +0100 | [diff] [blame] | 3760 | } else { |
| 3761 | ret = _ac_build_dpp(ctx, old, src, dpp_ctrl, row_mask, |
| 3762 | bank_mask, bound_ctrl); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3763 | } |
| 3764 | return LLVMBuildBitCast(ctx->builder, ret, src_type, ""); |
| 3765 | } |
| 3766 | |
Nicolai Hähnle | 227c29a | 2018-05-23 22:08:22 +0200 | [diff] [blame] | 3767 | static LLVMValueRef |
| 3768 | _ac_build_permlane16(struct ac_llvm_context *ctx, LLVMValueRef src, uint64_t sel, |
| 3769 | bool exchange_rows, bool bound_ctrl) |
| 3770 | { |
Samuel Pitoiset | 0812dbd | 2019-11-25 17:02:44 +0100 | [diff] [blame] | 3771 | LLVMTypeRef type = LLVMTypeOf(src); |
| 3772 | LLVMValueRef result; |
| 3773 | |
| 3774 | src = LLVMBuildZExt(ctx->builder, src, ctx->i32, ""); |
| 3775 | |
Nicolai Hähnle | 227c29a | 2018-05-23 22:08:22 +0200 | [diff] [blame] | 3776 | LLVMValueRef args[6] = { |
| 3777 | src, |
| 3778 | src, |
| 3779 | LLVMConstInt(ctx->i32, sel, false), |
| 3780 | LLVMConstInt(ctx->i32, sel >> 32, false), |
| 3781 | ctx->i1true, /* fi */ |
| 3782 | bound_ctrl ? ctx->i1true : ctx->i1false, |
| 3783 | }; |
Samuel Pitoiset | 0812dbd | 2019-11-25 17:02:44 +0100 | [diff] [blame] | 3784 | |
| 3785 | result = ac_build_intrinsic(ctx, exchange_rows ? "llvm.amdgcn.permlanex16" |
| 3786 | : "llvm.amdgcn.permlane16", |
| 3787 | ctx->i32, args, 6, |
| 3788 | AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT); |
| 3789 | |
| 3790 | return LLVMBuildTrunc(ctx->builder, result, type, ""); |
Nicolai Hähnle | 227c29a | 2018-05-23 22:08:22 +0200 | [diff] [blame] | 3791 | } |
| 3792 | |
| 3793 | static LLVMValueRef |
| 3794 | ac_build_permlane16(struct ac_llvm_context *ctx, LLVMValueRef src, uint64_t sel, |
| 3795 | bool exchange_rows, bool bound_ctrl) |
| 3796 | { |
| 3797 | LLVMTypeRef src_type = LLVMTypeOf(src); |
| 3798 | src = ac_to_integer(ctx, src); |
| 3799 | unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src)); |
| 3800 | LLVMValueRef ret; |
Samuel Pitoiset | 0812dbd | 2019-11-25 17:02:44 +0100 | [diff] [blame] | 3801 | if (bits > 32) { |
Nicolai Hähnle | 227c29a | 2018-05-23 22:08:22 +0200 | [diff] [blame] | 3802 | assert(bits % 32 == 0); |
| 3803 | LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32); |
| 3804 | LLVMValueRef src_vector = |
| 3805 | LLVMBuildBitCast(ctx->builder, src, vec_type, ""); |
| 3806 | ret = LLVMGetUndef(vec_type); |
| 3807 | for (unsigned i = 0; i < bits / 32; i++) { |
| 3808 | src = LLVMBuildExtractElement(ctx->builder, src_vector, |
| 3809 | LLVMConstInt(ctx->i32, i, |
| 3810 | 0), ""); |
| 3811 | LLVMValueRef ret_comp = |
| 3812 | _ac_build_permlane16(ctx, src, sel, |
| 3813 | exchange_rows, |
| 3814 | bound_ctrl); |
| 3815 | ret = LLVMBuildInsertElement(ctx->builder, ret, |
| 3816 | ret_comp, |
| 3817 | LLVMConstInt(ctx->i32, i, |
| 3818 | 0), ""); |
| 3819 | } |
Samuel Pitoiset | 0812dbd | 2019-11-25 17:02:44 +0100 | [diff] [blame] | 3820 | } else { |
| 3821 | ret = _ac_build_permlane16(ctx, src, sel, exchange_rows, |
| 3822 | bound_ctrl); |
Nicolai Hähnle | 227c29a | 2018-05-23 22:08:22 +0200 | [diff] [blame] | 3823 | } |
| 3824 | return LLVMBuildBitCast(ctx->builder, ret, src_type, ""); |
| 3825 | } |
| 3826 | |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3827 | static inline unsigned |
| 3828 | ds_pattern_bitmode(unsigned and_mask, unsigned or_mask, unsigned xor_mask) |
| 3829 | { |
| 3830 | assert(and_mask < 32 && or_mask < 32 && xor_mask < 32); |
| 3831 | return and_mask | (or_mask << 5) | (xor_mask << 10); |
| 3832 | } |
| 3833 | |
| 3834 | static LLVMValueRef |
| 3835 | _ac_build_ds_swizzle(struct ac_llvm_context *ctx, LLVMValueRef src, unsigned mask) |
| 3836 | { |
Samuel Pitoiset | c8af1d5 | 2019-11-08 14:51:40 +0100 | [diff] [blame] | 3837 | LLVMTypeRef src_type = LLVMTypeOf(src); |
| 3838 | LLVMValueRef ret; |
| 3839 | |
| 3840 | src = LLVMBuildZExt(ctx->builder, src, ctx->i32, ""); |
| 3841 | |
| 3842 | ret = ac_build_intrinsic(ctx, "llvm.amdgcn.ds.swizzle", ctx->i32, |
| 3843 | (LLVMValueRef []) { |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3844 | src, LLVMConstInt(ctx->i32, mask, 0) }, |
Samuel Pitoiset | c8af1d5 | 2019-11-08 14:51:40 +0100 | [diff] [blame] | 3845 | 2, AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT); |
| 3846 | |
| 3847 | return LLVMBuildTrunc(ctx->builder, ret, src_type, ""); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3848 | } |
| 3849 | |
| 3850 | LLVMValueRef |
| 3851 | ac_build_ds_swizzle(struct ac_llvm_context *ctx, LLVMValueRef src, unsigned mask) |
| 3852 | { |
| 3853 | LLVMTypeRef src_type = LLVMTypeOf(src); |
| 3854 | src = ac_to_integer(ctx, src); |
| 3855 | unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src)); |
| 3856 | LLVMValueRef ret; |
Samuel Pitoiset | c8af1d5 | 2019-11-08 14:51:40 +0100 | [diff] [blame] | 3857 | if (bits > 32) { |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3858 | assert(bits % 32 == 0); |
| 3859 | LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32); |
| 3860 | LLVMValueRef src_vector = |
| 3861 | LLVMBuildBitCast(ctx->builder, src, vec_type, ""); |
| 3862 | ret = LLVMGetUndef(vec_type); |
| 3863 | for (unsigned i = 0; i < bits / 32; i++) { |
| 3864 | src = LLVMBuildExtractElement(ctx->builder, src_vector, |
| 3865 | LLVMConstInt(ctx->i32, i, |
| 3866 | 0), ""); |
| 3867 | LLVMValueRef ret_comp = _ac_build_ds_swizzle(ctx, src, |
| 3868 | mask); |
| 3869 | ret = LLVMBuildInsertElement(ctx->builder, ret, |
| 3870 | ret_comp, |
| 3871 | LLVMConstInt(ctx->i32, i, |
| 3872 | 0), ""); |
| 3873 | } |
Samuel Pitoiset | c8af1d5 | 2019-11-08 14:51:40 +0100 | [diff] [blame] | 3874 | } else { |
| 3875 | ret = _ac_build_ds_swizzle(ctx, src, mask); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3876 | } |
| 3877 | return LLVMBuildBitCast(ctx->builder, ret, src_type, ""); |
| 3878 | } |
| 3879 | |
| 3880 | static LLVMValueRef |
| 3881 | ac_build_wwm(struct ac_llvm_context *ctx, LLVMValueRef src) |
| 3882 | { |
Samuel Pitoiset | 21a9243 | 2019-11-08 17:12:15 +0100 | [diff] [blame] | 3883 | LLVMTypeRef src_type = LLVMTypeOf(src); |
| 3884 | unsigned bitsize = ac_get_elem_bits(ctx, src_type); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3885 | char name[32], type[8]; |
Samuel Pitoiset | 21a9243 | 2019-11-08 17:12:15 +0100 | [diff] [blame] | 3886 | LLVMValueRef ret; |
| 3887 | |
| 3888 | src = ac_to_integer(ctx, src); |
| 3889 | |
| 3890 | if (bitsize < 32) |
| 3891 | src = LLVMBuildZExt(ctx->builder, src, ctx->i32, ""); |
| 3892 | |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3893 | ac_build_type_name_for_intr(LLVMTypeOf(src), type, sizeof(type)); |
| 3894 | snprintf(name, sizeof(name), "llvm.amdgcn.wwm.%s", type); |
Samuel Pitoiset | 21a9243 | 2019-11-08 17:12:15 +0100 | [diff] [blame] | 3895 | ret = ac_build_intrinsic(ctx, name, LLVMTypeOf(src), |
| 3896 | (LLVMValueRef []) { src }, 1, |
| 3897 | AC_FUNC_ATTR_READNONE); |
| 3898 | |
| 3899 | if (bitsize < 32) |
| 3900 | ret = LLVMBuildTrunc(ctx->builder, ret, |
| 3901 | ac_to_integer_type(ctx, src_type), ""); |
| 3902 | |
| 3903 | return LLVMBuildBitCast(ctx->builder, ret, src_type, ""); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3904 | } |
| 3905 | |
| 3906 | static LLVMValueRef |
| 3907 | ac_build_set_inactive(struct ac_llvm_context *ctx, LLVMValueRef src, |
| 3908 | LLVMValueRef inactive) |
| 3909 | { |
Timothy Arceri | fae3b38 | 2018-06-07 10:30:01 +1000 | [diff] [blame] | 3910 | char name[33], type[8]; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3911 | LLVMTypeRef src_type = LLVMTypeOf(src); |
Samuel Pitoiset | 2113867 | 2019-11-08 14:15:59 +0100 | [diff] [blame] | 3912 | unsigned bitsize = ac_get_elem_bits(ctx, src_type); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3913 | src = ac_to_integer(ctx, src); |
| 3914 | inactive = ac_to_integer(ctx, inactive); |
Samuel Pitoiset | 2113867 | 2019-11-08 14:15:59 +0100 | [diff] [blame] | 3915 | |
| 3916 | if (bitsize < 32) { |
| 3917 | src = LLVMBuildZExt(ctx->builder, src, ctx->i32, ""); |
| 3918 | inactive = LLVMBuildZExt(ctx->builder, inactive, ctx->i32, ""); |
| 3919 | } |
| 3920 | |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3921 | ac_build_type_name_for_intr(LLVMTypeOf(src), type, sizeof(type)); |
| 3922 | snprintf(name, sizeof(name), "llvm.amdgcn.set.inactive.%s", type); |
| 3923 | LLVMValueRef ret = |
| 3924 | ac_build_intrinsic(ctx, name, |
| 3925 | LLVMTypeOf(src), (LLVMValueRef []) { |
| 3926 | src, inactive }, 2, |
| 3927 | AC_FUNC_ATTR_READNONE | |
| 3928 | AC_FUNC_ATTR_CONVERGENT); |
Samuel Pitoiset | 2113867 | 2019-11-08 14:15:59 +0100 | [diff] [blame] | 3929 | if (bitsize < 32) |
| 3930 | ret = LLVMBuildTrunc(ctx->builder, ret, src_type, ""); |
Samuel Pitoiset | 204cf54 | 2019-11-08 14:12:58 +0100 | [diff] [blame] | 3931 | |
| 3932 | return ret; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3933 | } |
| 3934 | |
| 3935 | static LLVMValueRef |
| 3936 | get_reduction_identity(struct ac_llvm_context *ctx, nir_op op, unsigned type_size) |
| 3937 | { |
Samuel Pitoiset | ef352a2 | 2019-11-08 16:35:45 +0100 | [diff] [blame] | 3938 | if (type_size == 1) { |
| 3939 | switch (op) { |
| 3940 | case nir_op_iadd: return ctx->i8_0; |
| 3941 | case nir_op_imul: return ctx->i8_1; |
| 3942 | case nir_op_imin: return LLVMConstInt(ctx->i8, INT8_MAX, 0); |
| 3943 | case nir_op_umin: return LLVMConstInt(ctx->i8, UINT8_MAX, 0); |
| 3944 | case nir_op_imax: return LLVMConstInt(ctx->i8, INT8_MIN, 0); |
| 3945 | case nir_op_umax: return ctx->i8_0; |
| 3946 | case nir_op_iand: return LLVMConstInt(ctx->i8, -1, 0); |
| 3947 | case nir_op_ior: return ctx->i8_0; |
| 3948 | case nir_op_ixor: return ctx->i8_0; |
| 3949 | default: |
| 3950 | unreachable("bad reduction intrinsic"); |
| 3951 | } |
| 3952 | } else if (type_size == 2) { |
| 3953 | switch (op) { |
| 3954 | case nir_op_iadd: return ctx->i16_0; |
| 3955 | case nir_op_fadd: return ctx->f16_0; |
| 3956 | case nir_op_imul: return ctx->i16_1; |
| 3957 | case nir_op_fmul: return ctx->f16_1; |
| 3958 | case nir_op_imin: return LLVMConstInt(ctx->i16, INT16_MAX, 0); |
| 3959 | case nir_op_umin: return LLVMConstInt(ctx->i16, UINT16_MAX, 0); |
| 3960 | case nir_op_fmin: return LLVMConstReal(ctx->f16, INFINITY); |
| 3961 | case nir_op_imax: return LLVMConstInt(ctx->i16, INT16_MIN, 0); |
| 3962 | case nir_op_umax: return ctx->i16_0; |
| 3963 | case nir_op_fmax: return LLVMConstReal(ctx->f16, -INFINITY); |
| 3964 | case nir_op_iand: return LLVMConstInt(ctx->i16, -1, 0); |
| 3965 | case nir_op_ior: return ctx->i16_0; |
| 3966 | case nir_op_ixor: return ctx->i16_0; |
| 3967 | default: |
| 3968 | unreachable("bad reduction intrinsic"); |
| 3969 | } |
| 3970 | } else if (type_size == 4) { |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3971 | switch (op) { |
| 3972 | case nir_op_iadd: return ctx->i32_0; |
| 3973 | case nir_op_fadd: return ctx->f32_0; |
| 3974 | case nir_op_imul: return ctx->i32_1; |
| 3975 | case nir_op_fmul: return ctx->f32_1; |
| 3976 | case nir_op_imin: return LLVMConstInt(ctx->i32, INT32_MAX, 0); |
| 3977 | case nir_op_umin: return LLVMConstInt(ctx->i32, UINT32_MAX, 0); |
| 3978 | case nir_op_fmin: return LLVMConstReal(ctx->f32, INFINITY); |
| 3979 | case nir_op_imax: return LLVMConstInt(ctx->i32, INT32_MIN, 0); |
| 3980 | case nir_op_umax: return ctx->i32_0; |
| 3981 | case nir_op_fmax: return LLVMConstReal(ctx->f32, -INFINITY); |
| 3982 | case nir_op_iand: return LLVMConstInt(ctx->i32, -1, 0); |
| 3983 | case nir_op_ior: return ctx->i32_0; |
| 3984 | case nir_op_ixor: return ctx->i32_0; |
| 3985 | default: |
| 3986 | unreachable("bad reduction intrinsic"); |
| 3987 | } |
| 3988 | } else { /* type_size == 64bit */ |
| 3989 | switch (op) { |
| 3990 | case nir_op_iadd: return ctx->i64_0; |
| 3991 | case nir_op_fadd: return ctx->f64_0; |
| 3992 | case nir_op_imul: return ctx->i64_1; |
| 3993 | case nir_op_fmul: return ctx->f64_1; |
| 3994 | case nir_op_imin: return LLVMConstInt(ctx->i64, INT64_MAX, 0); |
| 3995 | case nir_op_umin: return LLVMConstInt(ctx->i64, UINT64_MAX, 0); |
| 3996 | case nir_op_fmin: return LLVMConstReal(ctx->f64, INFINITY); |
| 3997 | case nir_op_imax: return LLVMConstInt(ctx->i64, INT64_MIN, 0); |
| 3998 | case nir_op_umax: return ctx->i64_0; |
| 3999 | case nir_op_fmax: return LLVMConstReal(ctx->f64, -INFINITY); |
| 4000 | case nir_op_iand: return LLVMConstInt(ctx->i64, -1, 0); |
| 4001 | case nir_op_ior: return ctx->i64_0; |
| 4002 | case nir_op_ixor: return ctx->i64_0; |
| 4003 | default: |
| 4004 | unreachable("bad reduction intrinsic"); |
| 4005 | } |
| 4006 | } |
| 4007 | } |
| 4008 | |
| 4009 | static LLVMValueRef |
| 4010 | ac_build_alu_op(struct ac_llvm_context *ctx, LLVMValueRef lhs, LLVMValueRef rhs, nir_op op) |
| 4011 | { |
| 4012 | bool _64bit = ac_get_type_size(LLVMTypeOf(lhs)) == 8; |
Samuel Pitoiset | 80c71cb | 2019-11-08 15:57:02 +0100 | [diff] [blame] | 4013 | bool _32bit = ac_get_type_size(LLVMTypeOf(lhs)) == 4; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4014 | switch (op) { |
| 4015 | case nir_op_iadd: return LLVMBuildAdd(ctx->builder, lhs, rhs, ""); |
| 4016 | case nir_op_fadd: return LLVMBuildFAdd(ctx->builder, lhs, rhs, ""); |
| 4017 | case nir_op_imul: return LLVMBuildMul(ctx->builder, lhs, rhs, ""); |
| 4018 | case nir_op_fmul: return LLVMBuildFMul(ctx->builder, lhs, rhs, ""); |
| 4019 | case nir_op_imin: return LLVMBuildSelect(ctx->builder, |
| 4020 | LLVMBuildICmp(ctx->builder, LLVMIntSLT, lhs, rhs, ""), |
| 4021 | lhs, rhs, ""); |
| 4022 | case nir_op_umin: return LLVMBuildSelect(ctx->builder, |
| 4023 | LLVMBuildICmp(ctx->builder, LLVMIntULT, lhs, rhs, ""), |
| 4024 | lhs, rhs, ""); |
| 4025 | case nir_op_fmin: return ac_build_intrinsic(ctx, |
Samuel Pitoiset | 80c71cb | 2019-11-08 15:57:02 +0100 | [diff] [blame] | 4026 | _64bit ? "llvm.minnum.f64" : _32bit ? "llvm.minnum.f32" : "llvm.minnum.f16", |
| 4027 | _64bit ? ctx->f64 : _32bit ? ctx->f32 : ctx->f16, |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4028 | (LLVMValueRef[]){lhs, rhs}, 2, AC_FUNC_ATTR_READNONE); |
| 4029 | case nir_op_imax: return LLVMBuildSelect(ctx->builder, |
| 4030 | LLVMBuildICmp(ctx->builder, LLVMIntSGT, lhs, rhs, ""), |
| 4031 | lhs, rhs, ""); |
| 4032 | case nir_op_umax: return LLVMBuildSelect(ctx->builder, |
| 4033 | LLVMBuildICmp(ctx->builder, LLVMIntUGT, lhs, rhs, ""), |
| 4034 | lhs, rhs, ""); |
| 4035 | case nir_op_fmax: return ac_build_intrinsic(ctx, |
Samuel Pitoiset | 80c71cb | 2019-11-08 15:57:02 +0100 | [diff] [blame] | 4036 | _64bit ? "llvm.maxnum.f64" : _32bit ? "llvm.maxnum.f32" : "llvm.maxnum.f16", |
| 4037 | _64bit ? ctx->f64 : _32bit ? ctx->f32 : ctx->f16, |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4038 | (LLVMValueRef[]){lhs, rhs}, 2, AC_FUNC_ATTR_READNONE); |
| 4039 | case nir_op_iand: return LLVMBuildAnd(ctx->builder, lhs, rhs, ""); |
| 4040 | case nir_op_ior: return LLVMBuildOr(ctx->builder, lhs, rhs, ""); |
| 4041 | case nir_op_ixor: return LLVMBuildXor(ctx->builder, lhs, rhs, ""); |
| 4042 | default: |
| 4043 | unreachable("bad reduction intrinsic"); |
| 4044 | } |
| 4045 | } |
| 4046 | |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4047 | /** |
Bas Nieuwenhuizen | e09426a | 2019-11-27 23:33:59 +0100 | [diff] [blame^] | 4048 | * \param src The value to shift. |
| 4049 | * \param identity The value to use the first lane. |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4050 | * \param maxprefix specifies that the result only needs to be correct for a |
| 4051 | * prefix of this many threads |
Bas Nieuwenhuizen | e09426a | 2019-11-27 23:33:59 +0100 | [diff] [blame^] | 4052 | * \return src, shifted 1 lane up, and identity shifted into lane 0. |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4053 | */ |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4054 | static LLVMValueRef |
Bas Nieuwenhuizen | e09426a | 2019-11-27 23:33:59 +0100 | [diff] [blame^] | 4055 | ac_wavefront_shift_right_1(struct ac_llvm_context *ctx, LLVMValueRef src, |
| 4056 | LLVMValueRef identity, unsigned maxprefix) |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4057 | { |
Bas Nieuwenhuizen | e09426a | 2019-11-27 23:33:59 +0100 | [diff] [blame^] | 4058 | if (ctx->chip_class >= GFX10) { |
Samuel Pitoiset | c9aa843 | 2019-08-23 17:53:05 +0200 | [diff] [blame] | 4059 | /* wavefront shift_right by 1 on GFX10 (emulate dpp_wf_sr1) */ |
| 4060 | LLVMValueRef active, tmp1, tmp2; |
| 4061 | LLVMValueRef tid = ac_get_thread_id(ctx); |
| 4062 | |
| 4063 | tmp1 = ac_build_dpp(ctx, identity, src, dpp_row_sr(1), 0xf, 0xf, false); |
| 4064 | |
| 4065 | tmp2 = ac_build_permlane16(ctx, src, (uint64_t)~0, true, false); |
| 4066 | |
| 4067 | if (maxprefix > 32) { |
| 4068 | active = LLVMBuildICmp(ctx->builder, LLVMIntEQ, tid, |
| 4069 | LLVMConstInt(ctx->i32, 32, false), ""); |
| 4070 | |
| 4071 | tmp2 = LLVMBuildSelect(ctx->builder, active, |
| 4072 | ac_build_readlane(ctx, src, |
| 4073 | LLVMConstInt(ctx->i32, 31, false)), |
| 4074 | tmp2, ""); |
| 4075 | |
| 4076 | active = LLVMBuildOr(ctx->builder, active, |
| 4077 | LLVMBuildICmp(ctx->builder, LLVMIntEQ, |
| 4078 | LLVMBuildAnd(ctx->builder, tid, |
| 4079 | LLVMConstInt(ctx->i32, 0x1f, false), ""), |
| 4080 | LLVMConstInt(ctx->i32, 0x10, false), ""), ""); |
Bas Nieuwenhuizen | e09426a | 2019-11-27 23:33:59 +0100 | [diff] [blame^] | 4081 | return LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, ""); |
Samuel Pitoiset | c9aa843 | 2019-08-23 17:53:05 +0200 | [diff] [blame] | 4082 | } else if (maxprefix > 16) { |
| 4083 | active = LLVMBuildICmp(ctx->builder, LLVMIntEQ, tid, |
| 4084 | LLVMConstInt(ctx->i32, 16, false), ""); |
| 4085 | |
Bas Nieuwenhuizen | e09426a | 2019-11-27 23:33:59 +0100 | [diff] [blame^] | 4086 | return LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, ""); |
Samuel Pitoiset | c9aa843 | 2019-08-23 17:53:05 +0200 | [diff] [blame] | 4087 | } |
Daniel Schürmann | 0cbcfc0 | 2019-11-20 12:40:07 +0100 | [diff] [blame] | 4088 | } else if (ctx->chip_class >= GFX8) { |
Bas Nieuwenhuizen | e09426a | 2019-11-27 23:33:59 +0100 | [diff] [blame^] | 4089 | return ac_build_dpp(ctx, identity, src, dpp_wf_sr1, 0xf, 0xf, false); |
| 4090 | } |
| 4091 | |
| 4092 | /* wavefront shift_right by 1 on SI/CI */ |
| 4093 | LLVMValueRef active, tmp1, tmp2; |
| 4094 | LLVMValueRef tid = ac_get_thread_id(ctx); |
| 4095 | tmp1 = ac_build_ds_swizzle(ctx, src, (1 << 15) | dpp_quad_perm(0, 0, 1, 2)); |
| 4096 | tmp2 = ac_build_ds_swizzle(ctx, src, ds_pattern_bitmode(0x18, 0x03, 0x00)); |
| 4097 | active = LLVMBuildICmp(ctx->builder, LLVMIntEQ, |
| 4098 | LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 0x7, 0), ""), |
| 4099 | LLVMConstInt(ctx->i32, 0x4, 0), ""); |
| 4100 | tmp1 = LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, ""); |
| 4101 | tmp2 = ac_build_ds_swizzle(ctx, src, ds_pattern_bitmode(0x10, 0x07, 0x00)); |
| 4102 | active = LLVMBuildICmp(ctx->builder, LLVMIntEQ, |
| 4103 | LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 0xf, 0), ""), |
| 4104 | LLVMConstInt(ctx->i32, 0x8, 0), ""); |
| 4105 | tmp1 = LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, ""); |
| 4106 | tmp2 = ac_build_ds_swizzle(ctx, src, ds_pattern_bitmode(0x00, 0x0f, 0x00)); |
| 4107 | active = LLVMBuildICmp(ctx->builder, LLVMIntEQ, |
| 4108 | LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 0x1f, 0), ""), |
| 4109 | LLVMConstInt(ctx->i32, 0x10, 0), ""); |
| 4110 | tmp1 = LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, ""); |
| 4111 | tmp2 = ac_build_readlane(ctx, src, LLVMConstInt(ctx->i32, 31, 0)); |
| 4112 | active = LLVMBuildICmp(ctx->builder, LLVMIntEQ, tid, LLVMConstInt(ctx->i32, 32, 0), ""); |
| 4113 | tmp1 = LLVMBuildSelect(ctx->builder, active, tmp2, tmp1, ""); |
| 4114 | active = LLVMBuildICmp(ctx->builder, LLVMIntEQ, tid, LLVMConstInt(ctx->i32, 0, 0), ""); |
| 4115 | return LLVMBuildSelect(ctx->builder, active, identity, tmp1, ""); |
| 4116 | } |
| 4117 | |
| 4118 | /** |
| 4119 | * \param maxprefix specifies that the result only needs to be correct for a |
| 4120 | * prefix of this many threads |
| 4121 | */ |
| 4122 | static LLVMValueRef |
| 4123 | ac_build_scan(struct ac_llvm_context *ctx, nir_op op, LLVMValueRef src, LLVMValueRef identity, |
| 4124 | unsigned maxprefix, bool inclusive) |
| 4125 | { |
| 4126 | LLVMValueRef result, tmp; |
| 4127 | |
| 4128 | if (!inclusive) |
| 4129 | src = ac_wavefront_shift_right_1(ctx, src, identity, maxprefix); |
| 4130 | |
| 4131 | result = src; |
Daniel Schürmann | 0cbcfc0 | 2019-11-20 12:40:07 +0100 | [diff] [blame] | 4132 | |
| 4133 | if (ctx->chip_class <= GFX7) { |
| 4134 | assert(maxprefix == 64); |
| 4135 | LLVMValueRef tid = ac_get_thread_id(ctx); |
| 4136 | LLVMValueRef active; |
| 4137 | tmp = ac_build_ds_swizzle(ctx, src, ds_pattern_bitmode(0x1e, 0x00, 0x00)); |
| 4138 | active = LLVMBuildICmp(ctx->builder, LLVMIntNE, |
| 4139 | LLVMBuildAnd(ctx->builder, tid, ctx->i32_1, ""), |
| 4140 | ctx->i32_0, ""); |
| 4141 | tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, ""); |
| 4142 | result = ac_build_alu_op(ctx, result, tmp, op); |
| 4143 | tmp = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1c, 0x01, 0x00)); |
| 4144 | active = LLVMBuildICmp(ctx->builder, LLVMIntNE, |
| 4145 | LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 2, 0), ""), |
| 4146 | ctx->i32_0, ""); |
| 4147 | tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, ""); |
| 4148 | result = ac_build_alu_op(ctx, result, tmp, op); |
| 4149 | tmp = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x18, 0x03, 0x00)); |
| 4150 | active = LLVMBuildICmp(ctx->builder, LLVMIntNE, |
| 4151 | LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 4, 0), ""), |
| 4152 | ctx->i32_0, ""); |
| 4153 | tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, ""); |
| 4154 | result = ac_build_alu_op(ctx, result, tmp, op); |
| 4155 | tmp = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x10, 0x07, 0x00)); |
| 4156 | active = LLVMBuildICmp(ctx->builder, LLVMIntNE, |
| 4157 | LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 8, 0), ""), |
| 4158 | ctx->i32_0, ""); |
| 4159 | tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, ""); |
| 4160 | result = ac_build_alu_op(ctx, result, tmp, op); |
| 4161 | tmp = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x00, 0x0f, 0x00)); |
| 4162 | active = LLVMBuildICmp(ctx->builder, LLVMIntNE, |
| 4163 | LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 16, 0), ""), |
| 4164 | ctx->i32_0, ""); |
| 4165 | tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, ""); |
| 4166 | result = ac_build_alu_op(ctx, result, tmp, op); |
| 4167 | tmp = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 31, 0)); |
| 4168 | active = LLVMBuildICmp(ctx->builder, LLVMIntNE, |
| 4169 | LLVMBuildAnd(ctx->builder, tid, LLVMConstInt(ctx->i32, 32, 0), ""), |
| 4170 | ctx->i32_0, ""); |
| 4171 | tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, ""); |
| 4172 | result = ac_build_alu_op(ctx, result, tmp, op); |
| 4173 | return result; |
Nicolai Hähnle | 227c29a | 2018-05-23 22:08:22 +0200 | [diff] [blame] | 4174 | } |
Daniel Schürmann | 0cbcfc0 | 2019-11-20 12:40:07 +0100 | [diff] [blame] | 4175 | |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4176 | if (maxprefix <= 1) |
| 4177 | return result; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4178 | tmp = ac_build_dpp(ctx, identity, src, dpp_row_sr(1), 0xf, 0xf, false); |
| 4179 | result = ac_build_alu_op(ctx, result, tmp, op); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4180 | if (maxprefix <= 2) |
| 4181 | return result; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4182 | tmp = ac_build_dpp(ctx, identity, src, dpp_row_sr(2), 0xf, 0xf, false); |
| 4183 | result = ac_build_alu_op(ctx, result, tmp, op); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4184 | if (maxprefix <= 3) |
| 4185 | return result; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4186 | tmp = ac_build_dpp(ctx, identity, src, dpp_row_sr(3), 0xf, 0xf, false); |
| 4187 | result = ac_build_alu_op(ctx, result, tmp, op); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4188 | if (maxprefix <= 4) |
| 4189 | return result; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4190 | tmp = ac_build_dpp(ctx, identity, result, dpp_row_sr(4), 0xf, 0xe, false); |
| 4191 | result = ac_build_alu_op(ctx, result, tmp, op); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4192 | if (maxprefix <= 8) |
| 4193 | return result; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4194 | tmp = ac_build_dpp(ctx, identity, result, dpp_row_sr(8), 0xf, 0xc, false); |
| 4195 | result = ac_build_alu_op(ctx, result, tmp, op); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4196 | if (maxprefix <= 16) |
| 4197 | return result; |
Nicolai Hähnle | 227c29a | 2018-05-23 22:08:22 +0200 | [diff] [blame] | 4198 | |
| 4199 | if (ctx->chip_class >= GFX10) { |
Nicolai Hähnle | 227c29a | 2018-05-23 22:08:22 +0200 | [diff] [blame] | 4200 | LLVMValueRef tid = ac_get_thread_id(ctx); |
Samuel Pitoiset | c9aa843 | 2019-08-23 17:53:05 +0200 | [diff] [blame] | 4201 | LLVMValueRef active; |
| 4202 | |
| 4203 | tmp = ac_build_permlane16(ctx, result, ~(uint64_t)0, true, false); |
| 4204 | |
| 4205 | active = LLVMBuildICmp(ctx->builder, LLVMIntNE, |
| 4206 | LLVMBuildAnd(ctx->builder, tid, |
| 4207 | LLVMConstInt(ctx->i32, 16, false), ""), |
| 4208 | ctx->i32_0, ""); |
| 4209 | |
| 4210 | tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, ""); |
| 4211 | |
| 4212 | result = ac_build_alu_op(ctx, result, tmp, op); |
| 4213 | |
Nicolai Hähnle | 227c29a | 2018-05-23 22:08:22 +0200 | [diff] [blame] | 4214 | if (maxprefix <= 32) |
| 4215 | return result; |
| 4216 | |
Samuel Pitoiset | c9aa843 | 2019-08-23 17:53:05 +0200 | [diff] [blame] | 4217 | tmp = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 31, false)); |
| 4218 | |
| 4219 | active = LLVMBuildICmp(ctx->builder, LLVMIntUGE, tid, |
| 4220 | LLVMConstInt(ctx->i32, 32, false), ""); |
| 4221 | |
| 4222 | tmp = LLVMBuildSelect(ctx->builder, active, tmp, identity, ""); |
| 4223 | |
| 4224 | result = ac_build_alu_op(ctx, result, tmp, op); |
Nicolai Hähnle | 227c29a | 2018-05-23 22:08:22 +0200 | [diff] [blame] | 4225 | return result; |
| 4226 | } |
| 4227 | |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4228 | tmp = ac_build_dpp(ctx, identity, result, dpp_row_bcast15, 0xa, 0xf, false); |
| 4229 | result = ac_build_alu_op(ctx, result, tmp, op); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4230 | if (maxprefix <= 32) |
| 4231 | return result; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4232 | tmp = ac_build_dpp(ctx, identity, result, dpp_row_bcast31, 0xc, 0xf, false); |
| 4233 | result = ac_build_alu_op(ctx, result, tmp, op); |
| 4234 | return result; |
| 4235 | } |
| 4236 | |
| 4237 | LLVMValueRef |
| 4238 | ac_build_inclusive_scan(struct ac_llvm_context *ctx, LLVMValueRef src, nir_op op) |
| 4239 | { |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4240 | LLVMValueRef result; |
Nicolai Hähnle | 8efaffa | 2018-09-20 19:09:50 +0200 | [diff] [blame] | 4241 | |
| 4242 | if (LLVMTypeOf(src) == ctx->i1 && op == nir_op_iadd) { |
| 4243 | LLVMBuilderRef builder = ctx->builder; |
| 4244 | src = LLVMBuildZExt(builder, src, ctx->i32, ""); |
| 4245 | result = ac_build_ballot(ctx, src); |
| 4246 | result = ac_build_mbcnt(ctx, result); |
| 4247 | result = LLVMBuildAdd(builder, result, src, ""); |
| 4248 | return result; |
| 4249 | } |
| 4250 | |
| 4251 | ac_build_optimization_barrier(ctx, &src); |
| 4252 | |
Nicolai Hähnle | 3c77f26 | 2018-11-29 19:00:15 +0100 | [diff] [blame] | 4253 | LLVMValueRef identity = |
| 4254 | get_reduction_identity(ctx, op, ac_get_type_size(LLVMTypeOf(src))); |
| 4255 | result = LLVMBuildBitCast(ctx->builder, ac_build_set_inactive(ctx, src, identity), |
| 4256 | LLVMTypeOf(identity), ""); |
Marek Olšák | 9e467d1 | 2019-07-12 17:12:17 -0400 | [diff] [blame] | 4257 | result = ac_build_scan(ctx, op, result, identity, ctx->wave_size, true); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4258 | |
| 4259 | return ac_build_wwm(ctx, result); |
| 4260 | } |
| 4261 | |
| 4262 | LLVMValueRef |
| 4263 | ac_build_exclusive_scan(struct ac_llvm_context *ctx, LLVMValueRef src, nir_op op) |
| 4264 | { |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4265 | LLVMValueRef result; |
Nicolai Hähnle | 8efaffa | 2018-09-20 19:09:50 +0200 | [diff] [blame] | 4266 | |
| 4267 | if (LLVMTypeOf(src) == ctx->i1 && op == nir_op_iadd) { |
| 4268 | LLVMBuilderRef builder = ctx->builder; |
| 4269 | src = LLVMBuildZExt(builder, src, ctx->i32, ""); |
| 4270 | result = ac_build_ballot(ctx, src); |
| 4271 | result = ac_build_mbcnt(ctx, result); |
| 4272 | return result; |
| 4273 | } |
| 4274 | |
| 4275 | ac_build_optimization_barrier(ctx, &src); |
| 4276 | |
Nicolai Hähnle | 3c77f26 | 2018-11-29 19:00:15 +0100 | [diff] [blame] | 4277 | LLVMValueRef identity = |
| 4278 | get_reduction_identity(ctx, op, ac_get_type_size(LLVMTypeOf(src))); |
| 4279 | result = LLVMBuildBitCast(ctx->builder, ac_build_set_inactive(ctx, src, identity), |
| 4280 | LLVMTypeOf(identity), ""); |
Marek Olšák | 9e467d1 | 2019-07-12 17:12:17 -0400 | [diff] [blame] | 4281 | result = ac_build_scan(ctx, op, result, identity, ctx->wave_size, false); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4282 | |
| 4283 | return ac_build_wwm(ctx, result); |
| 4284 | } |
| 4285 | |
| 4286 | LLVMValueRef |
| 4287 | ac_build_reduce(struct ac_llvm_context *ctx, LLVMValueRef src, nir_op op, unsigned cluster_size) |
| 4288 | { |
| 4289 | if (cluster_size == 1) return src; |
| 4290 | ac_build_optimization_barrier(ctx, &src); |
| 4291 | LLVMValueRef result, swap; |
| 4292 | LLVMValueRef identity = get_reduction_identity(ctx, op, |
| 4293 | ac_get_type_size(LLVMTypeOf(src))); |
| 4294 | result = LLVMBuildBitCast(ctx->builder, |
| 4295 | ac_build_set_inactive(ctx, src, identity), |
| 4296 | LLVMTypeOf(identity), ""); |
| 4297 | swap = ac_build_quad_swizzle(ctx, result, 1, 0, 3, 2); |
| 4298 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4299 | if (cluster_size == 2) return ac_build_wwm(ctx, result); |
| 4300 | |
| 4301 | swap = ac_build_quad_swizzle(ctx, result, 2, 3, 0, 1); |
| 4302 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4303 | if (cluster_size == 4) return ac_build_wwm(ctx, result); |
| 4304 | |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 4305 | if (ctx->chip_class >= GFX8) |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4306 | swap = ac_build_dpp(ctx, identity, result, dpp_row_half_mirror, 0xf, 0xf, false); |
| 4307 | else |
| 4308 | swap = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1f, 0, 0x04)); |
| 4309 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4310 | if (cluster_size == 8) return ac_build_wwm(ctx, result); |
| 4311 | |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 4312 | if (ctx->chip_class >= GFX8) |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4313 | swap = ac_build_dpp(ctx, identity, result, dpp_row_mirror, 0xf, 0xf, false); |
| 4314 | else |
| 4315 | swap = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1f, 0, 0x08)); |
| 4316 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4317 | if (cluster_size == 16) return ac_build_wwm(ctx, result); |
| 4318 | |
Nicolai Hähnle | 227c29a | 2018-05-23 22:08:22 +0200 | [diff] [blame] | 4319 | if (ctx->chip_class >= GFX10) |
| 4320 | swap = ac_build_permlane16(ctx, result, 0, true, false); |
| 4321 | else if (ctx->chip_class >= GFX8 && cluster_size != 32) |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4322 | swap = ac_build_dpp(ctx, identity, result, dpp_row_bcast15, 0xa, 0xf, false); |
| 4323 | else |
| 4324 | swap = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1f, 0, 0x10)); |
| 4325 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4326 | if (cluster_size == 32) return ac_build_wwm(ctx, result); |
| 4327 | |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 4328 | if (ctx->chip_class >= GFX8) { |
Nicolai Hähnle | 227c29a | 2018-05-23 22:08:22 +0200 | [diff] [blame] | 4329 | if (ctx->chip_class >= GFX10) |
| 4330 | swap = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 31, false)); |
| 4331 | else |
| 4332 | swap = ac_build_dpp(ctx, identity, result, dpp_row_bcast31, 0xc, 0xf, false); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4333 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4334 | result = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 63, 0)); |
| 4335 | return ac_build_wwm(ctx, result); |
| 4336 | } else { |
| 4337 | swap = ac_build_readlane(ctx, result, ctx->i32_0); |
| 4338 | result = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 32, 0)); |
| 4339 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4340 | return ac_build_wwm(ctx, result); |
| 4341 | } |
| 4342 | } |
| 4343 | |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4344 | /** |
| 4345 | * "Top half" of a scan that reduces per-wave values across an entire |
| 4346 | * workgroup. |
| 4347 | * |
| 4348 | * The source value must be present in the highest lane of the wave, and the |
| 4349 | * highest lane must be live. |
| 4350 | */ |
| 4351 | void |
| 4352 | ac_build_wg_wavescan_top(struct ac_llvm_context *ctx, struct ac_wg_scan *ws) |
| 4353 | { |
| 4354 | if (ws->maxwaves <= 1) |
| 4355 | return; |
| 4356 | |
Marek Olšák | 9e467d1 | 2019-07-12 17:12:17 -0400 | [diff] [blame] | 4357 | const LLVMValueRef last_lane = LLVMConstInt(ctx->i32, ctx->wave_size - 1, false); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4358 | LLVMBuilderRef builder = ctx->builder; |
| 4359 | LLVMValueRef tid = ac_get_thread_id(ctx); |
| 4360 | LLVMValueRef tmp; |
| 4361 | |
Marek Olšák | 9e467d1 | 2019-07-12 17:12:17 -0400 | [diff] [blame] | 4362 | tmp = LLVMBuildICmp(builder, LLVMIntEQ, tid, last_lane, ""); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4363 | ac_build_ifcc(ctx, tmp, 1000); |
| 4364 | LLVMBuildStore(builder, ws->src, LLVMBuildGEP(builder, ws->scratch, &ws->waveidx, 1, "")); |
| 4365 | ac_build_endif(ctx, 1000); |
| 4366 | } |
| 4367 | |
| 4368 | /** |
| 4369 | * "Bottom half" of a scan that reduces per-wave values across an entire |
| 4370 | * workgroup. |
| 4371 | * |
| 4372 | * The caller must place a barrier between the top and bottom halves. |
| 4373 | */ |
| 4374 | void |
| 4375 | ac_build_wg_wavescan_bottom(struct ac_llvm_context *ctx, struct ac_wg_scan *ws) |
| 4376 | { |
| 4377 | const LLVMTypeRef type = LLVMTypeOf(ws->src); |
| 4378 | const LLVMValueRef identity = |
| 4379 | get_reduction_identity(ctx, ws->op, ac_get_type_size(type)); |
| 4380 | |
| 4381 | if (ws->maxwaves <= 1) { |
| 4382 | ws->result_reduce = ws->src; |
| 4383 | ws->result_inclusive = ws->src; |
| 4384 | ws->result_exclusive = identity; |
| 4385 | return; |
| 4386 | } |
| 4387 | assert(ws->maxwaves <= 32); |
| 4388 | |
| 4389 | LLVMBuilderRef builder = ctx->builder; |
| 4390 | LLVMValueRef tid = ac_get_thread_id(ctx); |
| 4391 | LLVMBasicBlockRef bbs[2]; |
| 4392 | LLVMValueRef phivalues_scan[2]; |
| 4393 | LLVMValueRef tmp, tmp2; |
| 4394 | |
| 4395 | bbs[0] = LLVMGetInsertBlock(builder); |
| 4396 | phivalues_scan[0] = LLVMGetUndef(type); |
| 4397 | |
| 4398 | if (ws->enable_reduce) |
| 4399 | tmp = LLVMBuildICmp(builder, LLVMIntULT, tid, ws->numwaves, ""); |
| 4400 | else if (ws->enable_inclusive) |
| 4401 | tmp = LLVMBuildICmp(builder, LLVMIntULE, tid, ws->waveidx, ""); |
| 4402 | else |
| 4403 | tmp = LLVMBuildICmp(builder, LLVMIntULT, tid, ws->waveidx, ""); |
| 4404 | ac_build_ifcc(ctx, tmp, 1001); |
| 4405 | { |
| 4406 | tmp = LLVMBuildLoad(builder, LLVMBuildGEP(builder, ws->scratch, &tid, 1, ""), ""); |
| 4407 | |
| 4408 | ac_build_optimization_barrier(ctx, &tmp); |
| 4409 | |
| 4410 | bbs[1] = LLVMGetInsertBlock(builder); |
Nicolai Hähnle | 227c29a | 2018-05-23 22:08:22 +0200 | [diff] [blame] | 4411 | phivalues_scan[1] = ac_build_scan(ctx, ws->op, tmp, identity, ws->maxwaves, true); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4412 | } |
| 4413 | ac_build_endif(ctx, 1001); |
| 4414 | |
| 4415 | const LLVMValueRef scan = ac_build_phi(ctx, type, 2, phivalues_scan, bbs); |
| 4416 | |
| 4417 | if (ws->enable_reduce) { |
| 4418 | tmp = LLVMBuildSub(builder, ws->numwaves, ctx->i32_1, ""); |
| 4419 | ws->result_reduce = ac_build_readlane(ctx, scan, tmp); |
| 4420 | } |
| 4421 | if (ws->enable_inclusive) |
| 4422 | ws->result_inclusive = ac_build_readlane(ctx, scan, ws->waveidx); |
| 4423 | if (ws->enable_exclusive) { |
| 4424 | tmp = LLVMBuildSub(builder, ws->waveidx, ctx->i32_1, ""); |
| 4425 | tmp = ac_build_readlane(ctx, scan, tmp); |
| 4426 | tmp2 = LLVMBuildICmp(builder, LLVMIntEQ, ws->waveidx, ctx->i32_0, ""); |
| 4427 | ws->result_exclusive = LLVMBuildSelect(builder, tmp2, identity, tmp, ""); |
| 4428 | } |
| 4429 | } |
| 4430 | |
| 4431 | /** |
| 4432 | * Inclusive scan of a per-wave value across an entire workgroup. |
| 4433 | * |
| 4434 | * This implies an s_barrier instruction. |
| 4435 | * |
| 4436 | * Unlike ac_build_inclusive_scan, the caller \em must ensure that all threads |
| 4437 | * of the workgroup are live. (This requirement cannot easily be relaxed in a |
| 4438 | * useful manner because of the barrier in the algorithm.) |
| 4439 | */ |
| 4440 | void |
| 4441 | ac_build_wg_wavescan(struct ac_llvm_context *ctx, struct ac_wg_scan *ws) |
| 4442 | { |
| 4443 | ac_build_wg_wavescan_top(ctx, ws); |
| 4444 | ac_build_s_barrier(ctx); |
| 4445 | ac_build_wg_wavescan_bottom(ctx, ws); |
| 4446 | } |
| 4447 | |
| 4448 | /** |
| 4449 | * "Top half" of a scan that reduces per-thread values across an entire |
| 4450 | * workgroup. |
| 4451 | * |
| 4452 | * All lanes must be active when this code runs. |
| 4453 | */ |
| 4454 | void |
| 4455 | ac_build_wg_scan_top(struct ac_llvm_context *ctx, struct ac_wg_scan *ws) |
| 4456 | { |
| 4457 | if (ws->enable_exclusive) { |
| 4458 | ws->extra = ac_build_exclusive_scan(ctx, ws->src, ws->op); |
Nicolai Hähnle | 8efaffa | 2018-09-20 19:09:50 +0200 | [diff] [blame] | 4459 | if (LLVMTypeOf(ws->src) == ctx->i1 && ws->op == nir_op_iadd) |
| 4460 | ws->src = LLVMBuildZExt(ctx->builder, ws->src, ctx->i32, ""); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4461 | ws->src = ac_build_alu_op(ctx, ws->extra, ws->src, ws->op); |
| 4462 | } else { |
| 4463 | ws->src = ac_build_inclusive_scan(ctx, ws->src, ws->op); |
| 4464 | } |
| 4465 | |
| 4466 | bool enable_inclusive = ws->enable_inclusive; |
| 4467 | bool enable_exclusive = ws->enable_exclusive; |
| 4468 | ws->enable_inclusive = false; |
| 4469 | ws->enable_exclusive = ws->enable_exclusive || enable_inclusive; |
| 4470 | ac_build_wg_wavescan_top(ctx, ws); |
| 4471 | ws->enable_inclusive = enable_inclusive; |
| 4472 | ws->enable_exclusive = enable_exclusive; |
| 4473 | } |
| 4474 | |
| 4475 | /** |
| 4476 | * "Bottom half" of a scan that reduces per-thread values across an entire |
| 4477 | * workgroup. |
| 4478 | * |
| 4479 | * The caller must place a barrier between the top and bottom halves. |
| 4480 | */ |
| 4481 | void |
| 4482 | ac_build_wg_scan_bottom(struct ac_llvm_context *ctx, struct ac_wg_scan *ws) |
| 4483 | { |
| 4484 | bool enable_inclusive = ws->enable_inclusive; |
| 4485 | bool enable_exclusive = ws->enable_exclusive; |
| 4486 | ws->enable_inclusive = false; |
| 4487 | ws->enable_exclusive = ws->enable_exclusive || enable_inclusive; |
| 4488 | ac_build_wg_wavescan_bottom(ctx, ws); |
| 4489 | ws->enable_inclusive = enable_inclusive; |
| 4490 | ws->enable_exclusive = enable_exclusive; |
| 4491 | |
| 4492 | /* ws->result_reduce is already the correct value */ |
| 4493 | if (ws->enable_inclusive) |
Marek Olšák | c9b64b5 | 2019-05-22 18:23:27 -0400 | [diff] [blame] | 4494 | ws->result_inclusive = ac_build_alu_op(ctx, ws->result_inclusive, ws->src, ws->op); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4495 | if (ws->enable_exclusive) |
| 4496 | ws->result_exclusive = ac_build_alu_op(ctx, ws->result_exclusive, ws->extra, ws->op); |
| 4497 | } |
| 4498 | |
| 4499 | /** |
| 4500 | * A scan that reduces per-thread values across an entire workgroup. |
| 4501 | * |
| 4502 | * The caller must ensure that all lanes are active when this code runs |
| 4503 | * (WWM is insufficient!), because there is an implied barrier. |
| 4504 | */ |
| 4505 | void |
| 4506 | ac_build_wg_scan(struct ac_llvm_context *ctx, struct ac_wg_scan *ws) |
| 4507 | { |
| 4508 | ac_build_wg_scan_top(ctx, ws); |
| 4509 | ac_build_s_barrier(ctx); |
| 4510 | ac_build_wg_scan_bottom(ctx, ws); |
| 4511 | } |
| 4512 | |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4513 | LLVMValueRef |
| 4514 | ac_build_quad_swizzle(struct ac_llvm_context *ctx, LLVMValueRef src, |
| 4515 | unsigned lane0, unsigned lane1, unsigned lane2, unsigned lane3) |
| 4516 | { |
| 4517 | unsigned mask = dpp_quad_perm(lane0, lane1, lane2, lane3); |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 4518 | if (ctx->chip_class >= GFX8) { |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4519 | return ac_build_dpp(ctx, src, src, mask, 0xf, 0xf, false); |
| 4520 | } else { |
| 4521 | return ac_build_ds_swizzle(ctx, src, (1 << 15) | mask); |
| 4522 | } |
| 4523 | } |
| 4524 | |
| 4525 | LLVMValueRef |
| 4526 | ac_build_shuffle(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef index) |
| 4527 | { |
Samuel Pitoiset | 58d5ab9 | 2019-11-08 12:44:39 +0100 | [diff] [blame] | 4528 | LLVMTypeRef type = LLVMTypeOf(src); |
| 4529 | LLVMValueRef result; |
| 4530 | |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4531 | index = LLVMBuildMul(ctx->builder, index, LLVMConstInt(ctx->i32, 4, 0), ""); |
Samuel Pitoiset | 58d5ab9 | 2019-11-08 12:44:39 +0100 | [diff] [blame] | 4532 | src = LLVMBuildZExt(ctx->builder, src, ctx->i32, ""); |
| 4533 | |
| 4534 | result = ac_build_intrinsic(ctx, "llvm.amdgcn.ds.bpermute", ctx->i32, |
| 4535 | (LLVMValueRef []) {index, src}, 2, |
| 4536 | AC_FUNC_ATTR_READNONE | |
| 4537 | AC_FUNC_ATTR_CONVERGENT); |
| 4538 | return LLVMBuildTrunc(ctx->builder, result, type, ""); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4539 | } |
Samuel Pitoiset | 1bf9311 | 2019-03-21 15:47:04 +0100 | [diff] [blame] | 4540 | |
| 4541 | LLVMValueRef |
Samuel Pitoiset | 52c02d9 | 2019-03-22 11:59:32 +0100 | [diff] [blame] | 4542 | ac_build_frexp_exp(struct ac_llvm_context *ctx, LLVMValueRef src0, |
| 4543 | unsigned bitsize) |
| 4544 | { |
| 4545 | LLVMTypeRef type; |
| 4546 | char *intr; |
| 4547 | |
| 4548 | if (bitsize == 16) { |
| 4549 | intr = "llvm.amdgcn.frexp.exp.i16.f16"; |
| 4550 | type = ctx->i16; |
| 4551 | } else if (bitsize == 32) { |
| 4552 | intr = "llvm.amdgcn.frexp.exp.i32.f32"; |
| 4553 | type = ctx->i32; |
| 4554 | } else { |
| 4555 | intr = "llvm.amdgcn.frexp.exp.i32.f64"; |
Samuel Pitoiset | cc752de | 2019-03-29 08:39:43 +0100 | [diff] [blame] | 4556 | type = ctx->i32; |
Samuel Pitoiset | 52c02d9 | 2019-03-22 11:59:32 +0100 | [diff] [blame] | 4557 | } |
| 4558 | |
| 4559 | LLVMValueRef params[] = { |
| 4560 | src0, |
| 4561 | }; |
| 4562 | return ac_build_intrinsic(ctx, intr, type, params, 1, |
| 4563 | AC_FUNC_ATTR_READNONE); |
| 4564 | } |
| 4565 | LLVMValueRef |
Samuel Pitoiset | 1bf9311 | 2019-03-21 15:47:04 +0100 | [diff] [blame] | 4566 | ac_build_frexp_mant(struct ac_llvm_context *ctx, LLVMValueRef src0, |
| 4567 | unsigned bitsize) |
| 4568 | { |
| 4569 | LLVMTypeRef type; |
| 4570 | char *intr; |
| 4571 | |
| 4572 | if (bitsize == 16) { |
| 4573 | intr = "llvm.amdgcn.frexp.mant.f16"; |
| 4574 | type = ctx->f16; |
| 4575 | } else if (bitsize == 32) { |
| 4576 | intr = "llvm.amdgcn.frexp.mant.f32"; |
| 4577 | type = ctx->f32; |
| 4578 | } else { |
| 4579 | intr = "llvm.amdgcn.frexp.mant.f64"; |
| 4580 | type = ctx->f64; |
| 4581 | } |
| 4582 | |
| 4583 | LLVMValueRef params[] = { |
| 4584 | src0, |
| 4585 | }; |
| 4586 | return ac_build_intrinsic(ctx, intr, type, params, 1, |
| 4587 | AC_FUNC_ATTR_READNONE); |
| 4588 | } |
Samuel Pitoiset | 590a4c8 | 2019-04-10 17:16:50 +0200 | [diff] [blame] | 4589 | |
Samuel Pitoiset | d94bd4e | 2019-10-14 14:23:35 +0200 | [diff] [blame] | 4590 | LLVMValueRef |
| 4591 | ac_build_canonicalize(struct ac_llvm_context *ctx, LLVMValueRef src0, |
| 4592 | unsigned bitsize) |
| 4593 | { |
| 4594 | LLVMTypeRef type; |
| 4595 | char *intr; |
| 4596 | |
| 4597 | if (bitsize == 16) { |
| 4598 | intr = "llvm.canonicalize.f16"; |
| 4599 | type = ctx->f16; |
| 4600 | } else if (bitsize == 32) { |
| 4601 | intr = "llvm.canonicalize.f32"; |
| 4602 | type = ctx->f32; |
Samuel Pitoiset | f6770b9 | 2019-11-25 08:51:16 +0100 | [diff] [blame] | 4603 | } else { |
Samuel Pitoiset | d94bd4e | 2019-10-14 14:23:35 +0200 | [diff] [blame] | 4604 | intr = "llvm.canonicalize.f64"; |
| 4605 | type = ctx->f64; |
| 4606 | } |
| 4607 | |
| 4608 | LLVMValueRef params[] = { |
| 4609 | src0, |
| 4610 | }; |
| 4611 | return ac_build_intrinsic(ctx, intr, type, params, 1, |
| 4612 | AC_FUNC_ATTR_READNONE); |
| 4613 | } |
| 4614 | |
Samuel Pitoiset | 590a4c8 | 2019-04-10 17:16:50 +0200 | [diff] [blame] | 4615 | /* |
| 4616 | * this takes an I,J coordinate pair, |
| 4617 | * and works out the X and Y derivatives. |
| 4618 | * it returns DDX(I), DDX(J), DDY(I), DDY(J). |
| 4619 | */ |
| 4620 | LLVMValueRef |
| 4621 | ac_build_ddxy_interp(struct ac_llvm_context *ctx, LLVMValueRef interp_ij) |
| 4622 | { |
| 4623 | LLVMValueRef result[4], a; |
| 4624 | unsigned i; |
| 4625 | |
| 4626 | for (i = 0; i < 2; i++) { |
| 4627 | a = LLVMBuildExtractElement(ctx->builder, interp_ij, |
| 4628 | LLVMConstInt(ctx->i32, i, false), ""); |
| 4629 | result[i] = ac_build_ddxy(ctx, AC_TID_MASK_TOP_LEFT, 1, a); |
| 4630 | result[2+i] = ac_build_ddxy(ctx, AC_TID_MASK_TOP_LEFT, 2, a); |
| 4631 | } |
| 4632 | return ac_build_gather_values(ctx, result, 4); |
| 4633 | } |
Samuel Pitoiset | fd40419 | 2019-04-10 17:16:51 +0200 | [diff] [blame] | 4634 | |
| 4635 | LLVMValueRef |
| 4636 | ac_build_load_helper_invocation(struct ac_llvm_context *ctx) |
| 4637 | { |
| 4638 | LLVMValueRef result = ac_build_intrinsic(ctx, "llvm.amdgcn.ps.live", |
| 4639 | ctx->i1, NULL, 0, |
| 4640 | AC_FUNC_ATTR_READNONE); |
| 4641 | result = LLVMBuildNot(ctx->builder, result, ""); |
| 4642 | return LLVMBuildSExt(ctx->builder, result, ctx->i32, ""); |
| 4643 | } |
Marek Olšák | ac4b1e2 | 2019-06-19 19:00:50 -0400 | [diff] [blame] | 4644 | |
| 4645 | LLVMValueRef ac_build_call(struct ac_llvm_context *ctx, LLVMValueRef func, |
| 4646 | LLVMValueRef *args, unsigned num_args) |
| 4647 | { |
| 4648 | LLVMValueRef ret = LLVMBuildCall(ctx->builder, func, args, num_args, ""); |
| 4649 | LLVMSetInstructionCallConv(ret, LLVMGetFunctionCallConv(func)); |
| 4650 | return ret; |
| 4651 | } |
Timur Kristóf | d8b46f8 | 2019-09-25 14:05:19 +0200 | [diff] [blame] | 4652 | |
| 4653 | void |
| 4654 | ac_export_mrt_z(struct ac_llvm_context *ctx, LLVMValueRef depth, |
| 4655 | LLVMValueRef stencil, LLVMValueRef samplemask, |
| 4656 | struct ac_export_args *args) |
| 4657 | { |
| 4658 | unsigned mask = 0; |
| 4659 | unsigned format = ac_get_spi_shader_z_format(depth != NULL, |
| 4660 | stencil != NULL, |
| 4661 | samplemask != NULL); |
| 4662 | |
| 4663 | assert(depth || stencil || samplemask); |
| 4664 | |
| 4665 | memset(args, 0, sizeof(*args)); |
| 4666 | |
| 4667 | args->valid_mask = 1; /* whether the EXEC mask is valid */ |
| 4668 | args->done = 1; /* DONE bit */ |
| 4669 | |
| 4670 | /* Specify the target we are exporting */ |
| 4671 | args->target = V_008DFC_SQ_EXP_MRTZ; |
| 4672 | |
| 4673 | args->compr = 0; /* COMP flag */ |
| 4674 | args->out[0] = LLVMGetUndef(ctx->f32); /* R, depth */ |
| 4675 | args->out[1] = LLVMGetUndef(ctx->f32); /* G, stencil test val[0:7], stencil op val[8:15] */ |
| 4676 | args->out[2] = LLVMGetUndef(ctx->f32); /* B, sample mask */ |
| 4677 | args->out[3] = LLVMGetUndef(ctx->f32); /* A, alpha to mask */ |
| 4678 | |
| 4679 | if (format == V_028710_SPI_SHADER_UINT16_ABGR) { |
| 4680 | assert(!depth); |
| 4681 | args->compr = 1; /* COMPR flag */ |
| 4682 | |
| 4683 | if (stencil) { |
| 4684 | /* Stencil should be in X[23:16]. */ |
| 4685 | stencil = ac_to_integer(ctx, stencil); |
| 4686 | stencil = LLVMBuildShl(ctx->builder, stencil, |
| 4687 | LLVMConstInt(ctx->i32, 16, 0), ""); |
| 4688 | args->out[0] = ac_to_float(ctx, stencil); |
| 4689 | mask |= 0x3; |
| 4690 | } |
| 4691 | if (samplemask) { |
| 4692 | /* SampleMask should be in Y[15:0]. */ |
| 4693 | args->out[1] = samplemask; |
| 4694 | mask |= 0xc; |
| 4695 | } |
| 4696 | } else { |
| 4697 | if (depth) { |
| 4698 | args->out[0] = depth; |
| 4699 | mask |= 0x1; |
| 4700 | } |
| 4701 | if (stencil) { |
| 4702 | args->out[1] = stencil; |
| 4703 | mask |= 0x2; |
| 4704 | } |
| 4705 | if (samplemask) { |
| 4706 | args->out[2] = samplemask; |
| 4707 | mask |= 0x4; |
| 4708 | } |
| 4709 | } |
| 4710 | |
| 4711 | /* GFX6 (except OLAND and HAINAN) has a bug that it only looks |
| 4712 | * at the X writemask component. */ |
| 4713 | if (ctx->chip_class == GFX6 && |
| 4714 | ctx->family != CHIP_OLAND && |
| 4715 | ctx->family != CHIP_HAINAN) |
| 4716 | mask |= 0x1; |
| 4717 | |
| 4718 | /* Specify which components to enable */ |
| 4719 | args->enabled_channels = mask; |
| 4720 | } |
| 4721 | |
Connor Abbott | 9885af3 | 2019-10-29 17:40:30 +0100 | [diff] [blame] | 4722 | static LLVMTypeRef |
| 4723 | arg_llvm_type(enum ac_arg_type type, unsigned size, struct ac_llvm_context *ctx) |
| 4724 | { |
| 4725 | if (type == AC_ARG_FLOAT) { |
| 4726 | return size == 1 ? ctx->f32 : LLVMVectorType(ctx->f32, size); |
| 4727 | } else if (type == AC_ARG_INT) { |
| 4728 | return size == 1 ? ctx->i32 : LLVMVectorType(ctx->i32, size); |
| 4729 | } else { |
| 4730 | LLVMTypeRef ptr_type; |
| 4731 | switch (type) { |
| 4732 | case AC_ARG_CONST_PTR: |
| 4733 | ptr_type = ctx->i8; |
| 4734 | break; |
| 4735 | case AC_ARG_CONST_FLOAT_PTR: |
| 4736 | ptr_type = ctx->f32; |
| 4737 | break; |
| 4738 | case AC_ARG_CONST_PTR_PTR: |
| 4739 | ptr_type = ac_array_in_const32_addr_space(ctx->i8); |
| 4740 | break; |
| 4741 | case AC_ARG_CONST_DESC_PTR: |
| 4742 | ptr_type = ctx->v4i32; |
| 4743 | break; |
| 4744 | case AC_ARG_CONST_IMAGE_PTR: |
| 4745 | ptr_type = ctx->v8i32; |
| 4746 | break; |
| 4747 | default: |
| 4748 | unreachable("unknown arg type"); |
| 4749 | } |
| 4750 | if (size == 1) { |
| 4751 | return ac_array_in_const32_addr_space(ptr_type); |
| 4752 | } else { |
| 4753 | assert(size == 2); |
| 4754 | return ac_array_in_const_addr_space(ptr_type); |
| 4755 | } |
| 4756 | } |
| 4757 | } |
| 4758 | |
| 4759 | LLVMValueRef |
| 4760 | ac_build_main(const struct ac_shader_args *args, |
| 4761 | struct ac_llvm_context *ctx, |
| 4762 | enum ac_llvm_calling_convention convention, |
| 4763 | const char *name, LLVMTypeRef ret_type, |
| 4764 | LLVMModuleRef module) |
| 4765 | { |
| 4766 | LLVMTypeRef arg_types[AC_MAX_ARGS]; |
| 4767 | |
| 4768 | for (unsigned i = 0; i < args->arg_count; i++) { |
| 4769 | arg_types[i] = arg_llvm_type(args->args[i].type, |
| 4770 | args->args[i].size, ctx); |
| 4771 | } |
| 4772 | |
| 4773 | LLVMTypeRef main_function_type = |
| 4774 | LLVMFunctionType(ret_type, arg_types, args->arg_count, 0); |
| 4775 | |
| 4776 | LLVMValueRef main_function = |
| 4777 | LLVMAddFunction(module, name, main_function_type); |
| 4778 | LLVMBasicBlockRef main_function_body = |
| 4779 | LLVMAppendBasicBlockInContext(ctx->context, main_function, "main_body"); |
| 4780 | LLVMPositionBuilderAtEnd(ctx->builder, main_function_body); |
| 4781 | |
| 4782 | LLVMSetFunctionCallConv(main_function, convention); |
| 4783 | for (unsigned i = 0; i < args->arg_count; ++i) { |
| 4784 | LLVMValueRef P = LLVMGetParam(main_function, i); |
| 4785 | |
| 4786 | if (args->args[i].file != AC_ARG_SGPR) |
| 4787 | continue; |
| 4788 | |
| 4789 | ac_add_function_attr(ctx->context, main_function, i + 1, AC_FUNC_ATTR_INREG); |
| 4790 | |
| 4791 | if (LLVMGetTypeKind(LLVMTypeOf(P)) == LLVMPointerTypeKind) { |
| 4792 | ac_add_function_attr(ctx->context, main_function, i + 1, AC_FUNC_ATTR_NOALIAS); |
| 4793 | ac_add_attr_dereferenceable(P, UINT64_MAX); |
| 4794 | } |
| 4795 | } |
| 4796 | |
| 4797 | ctx->main_function = main_function; |
| 4798 | return main_function; |
| 4799 | } |
| 4800 | |