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> |
| 29 | |
| 30 | #include "c11/threads.h" |
| 31 | |
| 32 | #include <assert.h> |
| 33 | #include <stdio.h> |
| 34 | |
| 35 | #include "ac_llvm_util.h" |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 36 | #include "ac_exp_param.h" |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 37 | #include "util/bitscan.h" |
| 38 | #include "util/macros.h" |
Connor Abbott | ac27fa7 | 2017-06-05 14:16:43 -0700 | [diff] [blame] | 39 | #include "util/u_atomic.h" |
Nicolai Hähnle | 625dcbb | 2018-03-23 11:20:24 +0100 | [diff] [blame] | 40 | #include "util/u_math.h" |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 41 | #include "sid.h" |
| 42 | |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 43 | #include "shader_enums.h" |
| 44 | |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 45 | #define AC_LLVM_INITIAL_CF_DEPTH 4 |
| 46 | |
| 47 | /* Data for if/else/endif and bgnloop/endloop control flow structures. |
| 48 | */ |
| 49 | struct ac_llvm_flow { |
| 50 | /* Loop exit or next part of if/else/endif. */ |
| 51 | LLVMBasicBlockRef next_block; |
| 52 | LLVMBasicBlockRef loop_entry_block; |
| 53 | }; |
| 54 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 55 | /* Initialize module-independent parts of the context. |
| 56 | * |
| 57 | * The caller is responsible for initializing ctx::module and ctx::builder. |
| 58 | */ |
| 59 | void |
Marek Olšák | 4695984 | 2018-07-04 01:37:30 -0400 | [diff] [blame] | 60 | ac_llvm_context_init(struct ac_llvm_context *ctx, |
Samuel Pitoiset | 03ef264 | 2017-12-21 17:53:14 +0100 | [diff] [blame] | 61 | enum chip_class chip_class, enum radeon_family family) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 62 | { |
| 63 | LLVMValueRef args[1]; |
| 64 | |
Marek Olšák | 4695984 | 2018-07-04 01:37:30 -0400 | [diff] [blame] | 65 | ctx->context = LLVMContextCreate(); |
| 66 | |
Nicolai Hähnle | 3db86d8 | 2017-09-13 14:36:23 +0200 | [diff] [blame] | 67 | ctx->chip_class = chip_class; |
Samuel Pitoiset | 03ef264 | 2017-12-21 17:53:14 +0100 | [diff] [blame] | 68 | ctx->family = family; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 69 | ctx->module = NULL; |
| 70 | ctx->builder = NULL; |
| 71 | |
| 72 | ctx->voidt = LLVMVoidTypeInContext(ctx->context); |
| 73 | ctx->i1 = LLVMInt1TypeInContext(ctx->context); |
| 74 | ctx->i8 = LLVMInt8TypeInContext(ctx->context); |
Nicolai Hähnle | 7bf8c94 | 2017-03-30 14:10:26 +0200 | [diff] [blame] | 75 | ctx->i16 = LLVMIntTypeInContext(ctx->context, 16); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 76 | ctx->i32 = LLVMIntTypeInContext(ctx->context, 32); |
Nicolai Hähnle | 7bf8c94 | 2017-03-30 14:10:26 +0200 | [diff] [blame] | 77 | ctx->i64 = LLVMIntTypeInContext(ctx->context, 64); |
Samuel Pitoiset | 3fbdcd9 | 2018-11-02 09:50:32 +0100 | [diff] [blame] | 78 | ctx->intptr = ctx->i32; |
Nicolai Hähnle | 7bf8c94 | 2017-03-30 14:10:26 +0200 | [diff] [blame] | 79 | ctx->f16 = LLVMHalfTypeInContext(ctx->context); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 80 | ctx->f32 = LLVMFloatTypeInContext(ctx->context); |
Nicolai Hähnle | 7bf8c94 | 2017-03-30 14:10:26 +0200 | [diff] [blame] | 81 | ctx->f64 = LLVMDoubleTypeInContext(ctx->context); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 82 | ctx->v2i16 = LLVMVectorType(ctx->i16, 2); |
Timothy Arceri | 309a514 | 2017-11-02 12:59:00 +1100 | [diff] [blame] | 83 | ctx->v2i32 = LLVMVectorType(ctx->i32, 2); |
Timothy Arceri | ee376ac | 2017-11-02 13:02:54 +1100 | [diff] [blame] | 84 | ctx->v3i32 = LLVMVectorType(ctx->i32, 3); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 85 | ctx->v4i32 = LLVMVectorType(ctx->i32, 4); |
Timothy Arceri | 7f49667 | 2017-11-02 13:24:27 +1100 | [diff] [blame] | 86 | ctx->v2f32 = LLVMVectorType(ctx->f32, 2); |
Samuel Pitoiset | 6970a9a | 2019-05-02 16:15:03 +0200 | [diff] [blame] | 87 | ctx->v3f32 = LLVMVectorType(ctx->f32, 3); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 88 | ctx->v4f32 = LLVMVectorType(ctx->f32, 4); |
Nicolai Hähnle | edfd3be | 2017-06-08 20:04:28 +0200 | [diff] [blame] | 89 | ctx->v8i32 = LLVMVectorType(ctx->i32, 8); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 90 | |
Samuel Pitoiset | 6e632eb | 2019-03-13 15:53:51 +0100 | [diff] [blame] | 91 | ctx->i8_0 = LLVMConstInt(ctx->i8, 0, false); |
| 92 | ctx->i8_1 = LLVMConstInt(ctx->i8, 1, false); |
Samuel Pitoiset | cfd6314 | 2018-09-14 12:52:34 +0200 | [diff] [blame] | 93 | ctx->i16_0 = LLVMConstInt(ctx->i16, 0, false); |
| 94 | ctx->i16_1 = LLVMConstInt(ctx->i16, 1, false); |
Nicolai Hähnle | 331a574 | 2017-05-18 22:02:48 +0200 | [diff] [blame] | 95 | ctx->i32_0 = LLVMConstInt(ctx->i32, 0, false); |
| 96 | ctx->i32_1 = LLVMConstInt(ctx->i32, 1, false); |
Timothy Arceri | 38876c8 | 2018-01-14 10:06:36 +1100 | [diff] [blame] | 97 | ctx->i64_0 = LLVMConstInt(ctx->i64, 0, false); |
| 98 | ctx->i64_1 = LLVMConstInt(ctx->i64, 1, false); |
Samuel Pitoiset | ff11c9d | 2019-03-21 10:14:29 +0100 | [diff] [blame] | 99 | ctx->f16_0 = LLVMConstReal(ctx->f16, 0.0); |
| 100 | ctx->f16_1 = LLVMConstReal(ctx->f16, 1.0); |
Nicolai Hähnle | 331a574 | 2017-05-18 22:02:48 +0200 | [diff] [blame] | 101 | ctx->f32_0 = LLVMConstReal(ctx->f32, 0.0); |
| 102 | ctx->f32_1 = LLVMConstReal(ctx->f32, 1.0); |
Timothy Arceri | d7b6b8b | 2018-01-11 22:09:35 +1100 | [diff] [blame] | 103 | ctx->f64_0 = LLVMConstReal(ctx->f64, 0.0); |
Timothy Arceri | c0eb304 | 2018-01-11 17:03:36 +1100 | [diff] [blame] | 104 | ctx->f64_1 = LLVMConstReal(ctx->f64, 1.0); |
Nicolai Hähnle | 331a574 | 2017-05-18 22:02:48 +0200 | [diff] [blame] | 105 | |
Dave Airlie | a76b6c2 | 2017-10-26 15:20:15 +1000 | [diff] [blame] | 106 | ctx->i1false = LLVMConstInt(ctx->i1, 0, false); |
| 107 | ctx->i1true = LLVMConstInt(ctx->i1, 1, false); |
| 108 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 109 | ctx->range_md_kind = LLVMGetMDKindIDInContext(ctx->context, |
| 110 | "range", 5); |
| 111 | |
| 112 | ctx->invariant_load_md_kind = LLVMGetMDKindIDInContext(ctx->context, |
| 113 | "invariant.load", 14); |
| 114 | |
| 115 | ctx->fpmath_md_kind = LLVMGetMDKindIDInContext(ctx->context, "fpmath", 6); |
| 116 | |
| 117 | args[0] = LLVMConstReal(ctx->f32, 2.5); |
| 118 | ctx->fpmath_md_2p5_ulp = LLVMMDNodeInContext(ctx->context, args, 1); |
| 119 | |
| 120 | ctx->uniform_md_kind = LLVMGetMDKindIDInContext(ctx->context, |
| 121 | "amdgpu.uniform", 14); |
| 122 | |
| 123 | ctx->empty_md = LLVMMDNodeInContext(ctx->context, NULL, 0); |
| 124 | } |
| 125 | |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 126 | void |
| 127 | ac_llvm_context_dispose(struct ac_llvm_context *ctx) |
| 128 | { |
| 129 | free(ctx->flow); |
| 130 | ctx->flow = NULL; |
| 131 | ctx->flow_depth_max = 0; |
| 132 | } |
| 133 | |
Timothy Arceri | b99ebaa | 2017-12-11 12:54:47 +1100 | [diff] [blame] | 134 | int |
| 135 | ac_get_llvm_num_components(LLVMValueRef value) |
| 136 | { |
| 137 | LLVMTypeRef type = LLVMTypeOf(value); |
| 138 | unsigned num_components = LLVMGetTypeKind(type) == LLVMVectorTypeKind |
| 139 | ? LLVMGetVectorSize(type) |
| 140 | : 1; |
| 141 | return num_components; |
| 142 | } |
| 143 | |
| 144 | LLVMValueRef |
| 145 | ac_llvm_extract_elem(struct ac_llvm_context *ac, |
| 146 | LLVMValueRef value, |
| 147 | int index) |
| 148 | { |
Timothy Arceri | 4a0c24f2 | 2017-12-13 18:46:56 +1100 | [diff] [blame] | 149 | if (LLVMGetTypeKind(LLVMTypeOf(value)) != LLVMVectorTypeKind) { |
| 150 | assert(index == 0); |
Timothy Arceri | b99ebaa | 2017-12-11 12:54:47 +1100 | [diff] [blame] | 151 | return value; |
Timothy Arceri | 4a0c24f2 | 2017-12-13 18:46:56 +1100 | [diff] [blame] | 152 | } |
Timothy Arceri | b99ebaa | 2017-12-11 12:54:47 +1100 | [diff] [blame] | 153 | |
| 154 | return LLVMBuildExtractElement(ac->builder, value, |
| 155 | LLVMConstInt(ac->i32, index, false), ""); |
| 156 | } |
| 157 | |
Timothy Arceri | a9f6b39 | 2018-02-06 14:38:19 +1100 | [diff] [blame] | 158 | int |
| 159 | ac_get_elem_bits(struct ac_llvm_context *ctx, LLVMTypeRef type) |
| 160 | { |
| 161 | if (LLVMGetTypeKind(type) == LLVMVectorTypeKind) |
| 162 | type = LLVMGetElementType(type); |
| 163 | |
| 164 | if (LLVMGetTypeKind(type) == LLVMIntegerTypeKind) |
| 165 | return LLVMGetIntTypeWidth(type); |
| 166 | |
| 167 | if (type == ctx->f16) |
| 168 | return 16; |
| 169 | if (type == ctx->f32) |
| 170 | return 32; |
| 171 | if (type == ctx->f64) |
| 172 | return 64; |
| 173 | |
| 174 | unreachable("Unhandled type kind in get_elem_bits"); |
| 175 | } |
| 176 | |
Connor Abbott | c181d4f | 2017-06-05 14:37:01 -0700 | [diff] [blame] | 177 | unsigned |
| 178 | ac_get_type_size(LLVMTypeRef type) |
| 179 | { |
| 180 | LLVMTypeKind kind = LLVMGetTypeKind(type); |
| 181 | |
| 182 | switch (kind) { |
| 183 | case LLVMIntegerTypeKind: |
| 184 | return LLVMGetIntTypeWidth(type) / 8; |
Daniel Schürmann | f582367 | 2018-02-03 14:37:26 +0100 | [diff] [blame] | 185 | case LLVMHalfTypeKind: |
| 186 | return 2; |
Connor Abbott | c181d4f | 2017-06-05 14:37:01 -0700 | [diff] [blame] | 187 | case LLVMFloatTypeKind: |
| 188 | return 4; |
Connor Abbott | fafa299 | 2017-07-18 20:44:47 -0700 | [diff] [blame] | 189 | case LLVMDoubleTypeKind: |
Marek Olšák | 931ec80 | 2018-01-01 21:04:22 +0100 | [diff] [blame] | 190 | return 8; |
Connor Abbott | c181d4f | 2017-06-05 14:37:01 -0700 | [diff] [blame] | 191 | case LLVMPointerTypeKind: |
Marek Olšák | a668c8d | 2018-09-07 18:44:54 -0400 | [diff] [blame] | 192 | if (LLVMGetPointerAddressSpace(type) == AC_ADDR_SPACE_CONST_32BIT) |
Marek Olšák | 931ec80 | 2018-01-01 21:04:22 +0100 | [diff] [blame] | 193 | return 4; |
Connor Abbott | c181d4f | 2017-06-05 14:37:01 -0700 | [diff] [blame] | 194 | return 8; |
| 195 | case LLVMVectorTypeKind: |
| 196 | return LLVMGetVectorSize(type) * |
| 197 | ac_get_type_size(LLVMGetElementType(type)); |
| 198 | case LLVMArrayTypeKind: |
| 199 | return LLVMGetArrayLength(type) * |
| 200 | ac_get_type_size(LLVMGetElementType(type)); |
| 201 | default: |
| 202 | assert(0); |
| 203 | return 0; |
| 204 | } |
| 205 | } |
| 206 | |
Connor Abbott | 50967cd | 2017-07-18 17:32:10 -0700 | [diff] [blame] | 207 | static LLVMTypeRef to_integer_type_scalar(struct ac_llvm_context *ctx, LLVMTypeRef t) |
| 208 | { |
Samuel Pitoiset | 6e632eb | 2019-03-13 15:53:51 +0100 | [diff] [blame] | 209 | if (t == ctx->i8) |
| 210 | return ctx->i8; |
| 211 | else if (t == ctx->f16 || t == ctx->i16) |
Connor Abbott | 50967cd | 2017-07-18 17:32:10 -0700 | [diff] [blame] | 212 | return ctx->i16; |
| 213 | else if (t == ctx->f32 || t == ctx->i32) |
| 214 | return ctx->i32; |
| 215 | else if (t == ctx->f64 || t == ctx->i64) |
| 216 | return ctx->i64; |
| 217 | else |
| 218 | unreachable("Unhandled integer size"); |
| 219 | } |
| 220 | |
| 221 | LLVMTypeRef |
| 222 | ac_to_integer_type(struct ac_llvm_context *ctx, LLVMTypeRef t) |
| 223 | { |
| 224 | if (LLVMGetTypeKind(t) == LLVMVectorTypeKind) { |
| 225 | LLVMTypeRef elem_type = LLVMGetElementType(t); |
| 226 | return LLVMVectorType(to_integer_type_scalar(ctx, elem_type), |
| 227 | LLVMGetVectorSize(t)); |
| 228 | } |
Bas Nieuwenhuizen | 58c8dad | 2019-01-23 01:54:39 +0100 | [diff] [blame] | 229 | if (LLVMGetTypeKind(t) == LLVMPointerTypeKind) { |
| 230 | switch (LLVMGetPointerAddressSpace(t)) { |
| 231 | case AC_ADDR_SPACE_GLOBAL: |
| 232 | return ctx->i64; |
| 233 | case AC_ADDR_SPACE_LDS: |
| 234 | return ctx->i32; |
| 235 | default: |
| 236 | unreachable("unhandled address space"); |
| 237 | } |
| 238 | } |
Connor Abbott | 50967cd | 2017-07-18 17:32:10 -0700 | [diff] [blame] | 239 | return to_integer_type_scalar(ctx, t); |
| 240 | } |
| 241 | |
| 242 | LLVMValueRef |
| 243 | ac_to_integer(struct ac_llvm_context *ctx, LLVMValueRef v) |
| 244 | { |
| 245 | LLVMTypeRef type = LLVMTypeOf(v); |
Bas Nieuwenhuizen | 58c8dad | 2019-01-23 01:54:39 +0100 | [diff] [blame] | 246 | if (LLVMGetTypeKind(type) == LLVMPointerTypeKind) { |
| 247 | return LLVMBuildPtrToInt(ctx->builder, v, ac_to_integer_type(ctx, type), ""); |
| 248 | } |
Connor Abbott | 50967cd | 2017-07-18 17:32:10 -0700 | [diff] [blame] | 249 | return LLVMBuildBitCast(ctx->builder, v, ac_to_integer_type(ctx, type), ""); |
| 250 | } |
| 251 | |
Dave Airlie | ec9fe8a | 2018-11-19 13:00:36 +1000 | [diff] [blame] | 252 | LLVMValueRef |
| 253 | ac_to_integer_or_pointer(struct ac_llvm_context *ctx, LLVMValueRef v) |
| 254 | { |
| 255 | LLVMTypeRef type = LLVMTypeOf(v); |
| 256 | if (LLVMGetTypeKind(type) == LLVMPointerTypeKind) |
| 257 | return v; |
| 258 | return ac_to_integer(ctx, v); |
| 259 | } |
| 260 | |
Connor Abbott | 50967cd | 2017-07-18 17:32:10 -0700 | [diff] [blame] | 261 | static LLVMTypeRef to_float_type_scalar(struct ac_llvm_context *ctx, LLVMTypeRef t) |
| 262 | { |
Samuel Pitoiset | 6e632eb | 2019-03-13 15:53:51 +0100 | [diff] [blame] | 263 | if (t == ctx->i8) |
| 264 | return ctx->i8; |
| 265 | else if (t == ctx->i16 || t == ctx->f16) |
Connor Abbott | 50967cd | 2017-07-18 17:32:10 -0700 | [diff] [blame] | 266 | return ctx->f16; |
| 267 | else if (t == ctx->i32 || t == ctx->f32) |
| 268 | return ctx->f32; |
| 269 | else if (t == ctx->i64 || t == ctx->f64) |
| 270 | return ctx->f64; |
| 271 | else |
| 272 | unreachable("Unhandled float size"); |
| 273 | } |
| 274 | |
| 275 | LLVMTypeRef |
| 276 | ac_to_float_type(struct ac_llvm_context *ctx, LLVMTypeRef t) |
| 277 | { |
| 278 | if (LLVMGetTypeKind(t) == LLVMVectorTypeKind) { |
| 279 | LLVMTypeRef elem_type = LLVMGetElementType(t); |
| 280 | return LLVMVectorType(to_float_type_scalar(ctx, elem_type), |
| 281 | LLVMGetVectorSize(t)); |
| 282 | } |
| 283 | return to_float_type_scalar(ctx, t); |
| 284 | } |
| 285 | |
| 286 | LLVMValueRef |
| 287 | ac_to_float(struct ac_llvm_context *ctx, LLVMValueRef v) |
| 288 | { |
| 289 | LLVMTypeRef type = LLVMTypeOf(v); |
| 290 | return LLVMBuildBitCast(ctx->builder, v, ac_to_float_type(ctx, type), ""); |
| 291 | } |
| 292 | |
| 293 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 294 | LLVMValueRef |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 295 | ac_build_intrinsic(struct ac_llvm_context *ctx, const char *name, |
| 296 | LLVMTypeRef return_type, LLVMValueRef *params, |
| 297 | unsigned param_count, unsigned attrib_mask) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 298 | { |
Marek Olšák | 940da36 | 2017-02-22 02:29:12 +0100 | [diff] [blame] | 299 | LLVMValueRef function, call; |
Marek Olšák | 3bf1e03 | 2018-02-02 19:26:49 +0100 | [diff] [blame] | 300 | bool set_callsite_attrs = !(attrib_mask & AC_FUNC_ATTR_LEGACY); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 301 | |
| 302 | function = LLVMGetNamedFunction(ctx->module, name); |
| 303 | if (!function) { |
| 304 | LLVMTypeRef param_types[32], function_type; |
| 305 | unsigned i; |
| 306 | |
| 307 | assert(param_count <= 32); |
| 308 | |
| 309 | for (i = 0; i < param_count; ++i) { |
| 310 | assert(params[i]); |
| 311 | param_types[i] = LLVMTypeOf(params[i]); |
| 312 | } |
| 313 | function_type = |
| 314 | LLVMFunctionType(return_type, param_types, param_count, 0); |
| 315 | function = LLVMAddFunction(ctx->module, name, function_type); |
| 316 | |
| 317 | LLVMSetFunctionCallConv(function, LLVMCCallConv); |
| 318 | LLVMSetLinkage(function, LLVMExternalLinkage); |
| 319 | |
Marek Olšák | 940da36 | 2017-02-22 02:29:12 +0100 | [diff] [blame] | 320 | if (!set_callsite_attrs) |
| 321 | ac_add_func_attributes(ctx->context, function, attrib_mask); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 322 | } |
Marek Olšák | 940da36 | 2017-02-22 02:29:12 +0100 | [diff] [blame] | 323 | |
| 324 | call = LLVMBuildCall(ctx->builder, function, params, param_count, ""); |
| 325 | if (set_callsite_attrs) |
| 326 | ac_add_func_attributes(ctx->context, call, attrib_mask); |
| 327 | return call; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 328 | } |
| 329 | |
Marek Olšák | 9af0331 | 2017-02-23 22:58:49 +0100 | [diff] [blame] | 330 | /** |
| 331 | * Given the i32 or vNi32 \p type, generate the textual name (e.g. for use with |
| 332 | * intrinsic names). |
| 333 | */ |
| 334 | void ac_build_type_name_for_intr(LLVMTypeRef type, char *buf, unsigned bufsize) |
| 335 | { |
| 336 | LLVMTypeRef elem_type = type; |
| 337 | |
| 338 | assert(bufsize >= 8); |
| 339 | |
| 340 | if (LLVMGetTypeKind(type) == LLVMVectorTypeKind) { |
| 341 | int ret = snprintf(buf, bufsize, "v%u", |
| 342 | LLVMGetVectorSize(type)); |
| 343 | if (ret < 0) { |
| 344 | char *type_name = LLVMPrintTypeToString(type); |
| 345 | fprintf(stderr, "Error building type name for: %s\n", |
| 346 | type_name); |
| 347 | return; |
| 348 | } |
| 349 | elem_type = LLVMGetElementType(type); |
| 350 | buf += ret; |
| 351 | bufsize -= ret; |
| 352 | } |
| 353 | switch (LLVMGetTypeKind(elem_type)) { |
| 354 | default: break; |
| 355 | case LLVMIntegerTypeKind: |
| 356 | snprintf(buf, bufsize, "i%d", LLVMGetIntTypeWidth(elem_type)); |
| 357 | break; |
Daniel Schürmann | f582367 | 2018-02-03 14:37:26 +0100 | [diff] [blame] | 358 | case LLVMHalfTypeKind: |
| 359 | snprintf(buf, bufsize, "f16"); |
| 360 | break; |
Marek Olšák | 9af0331 | 2017-02-23 22:58:49 +0100 | [diff] [blame] | 361 | case LLVMFloatTypeKind: |
| 362 | snprintf(buf, bufsize, "f32"); |
| 363 | break; |
| 364 | case LLVMDoubleTypeKind: |
| 365 | snprintf(buf, bufsize, "f64"); |
| 366 | break; |
| 367 | } |
| 368 | } |
| 369 | |
Nicolai Hähnle | 052b974 | 2017-09-29 11:17:03 +0200 | [diff] [blame] | 370 | /** |
| 371 | * Helper function that builds an LLVM IR PHI node and immediately adds |
| 372 | * incoming edges. |
| 373 | */ |
| 374 | LLVMValueRef |
| 375 | ac_build_phi(struct ac_llvm_context *ctx, LLVMTypeRef type, |
| 376 | unsigned count_incoming, LLVMValueRef *values, |
| 377 | LLVMBasicBlockRef *blocks) |
| 378 | { |
| 379 | LLVMValueRef phi = LLVMBuildPhi(ctx->builder, type, ""); |
| 380 | LLVMAddIncoming(phi, values, blocks, count_incoming); |
| 381 | return phi; |
| 382 | } |
| 383 | |
Marek Olšák | 2276f8f | 2018-08-13 23:59:28 -0400 | [diff] [blame] | 384 | void ac_build_s_barrier(struct ac_llvm_context *ctx) |
| 385 | { |
| 386 | ac_build_intrinsic(ctx, "llvm.amdgcn.s.barrier", ctx->voidt, NULL, |
| 387 | 0, AC_FUNC_ATTR_CONVERGENT); |
| 388 | } |
| 389 | |
Connor Abbott | ac27fa7 | 2017-06-05 14:16:43 -0700 | [diff] [blame] | 390 | /* Prevent optimizations (at least of memory accesses) across the current |
| 391 | * point in the program by emitting empty inline assembly that is marked as |
| 392 | * having side effects. |
| 393 | * |
| 394 | * Optionally, a value can be passed through the inline assembly to prevent |
| 395 | * LLVM from hoisting calls to ReadNone functions. |
| 396 | */ |
| 397 | void |
| 398 | ac_build_optimization_barrier(struct ac_llvm_context *ctx, |
| 399 | LLVMValueRef *pvgpr) |
| 400 | { |
| 401 | static int counter = 0; |
| 402 | |
| 403 | LLVMBuilderRef builder = ctx->builder; |
| 404 | char code[16]; |
| 405 | |
| 406 | snprintf(code, sizeof(code), "; %d", p_atomic_inc_return(&counter)); |
| 407 | |
| 408 | if (!pvgpr) { |
| 409 | LLVMTypeRef ftype = LLVMFunctionType(ctx->voidt, NULL, 0, false); |
| 410 | LLVMValueRef inlineasm = LLVMConstInlineAsm(ftype, code, "", true, false); |
| 411 | LLVMBuildCall(builder, inlineasm, NULL, 0, ""); |
| 412 | } else { |
| 413 | LLVMTypeRef ftype = LLVMFunctionType(ctx->i32, &ctx->i32, 1, false); |
| 414 | LLVMValueRef inlineasm = LLVMConstInlineAsm(ftype, code, "=v,0", true, false); |
| 415 | LLVMValueRef vgpr = *pvgpr; |
| 416 | LLVMTypeRef vgpr_type = LLVMTypeOf(vgpr); |
| 417 | unsigned vgpr_size = ac_get_type_size(vgpr_type); |
| 418 | LLVMValueRef vgpr0; |
| 419 | |
| 420 | assert(vgpr_size % 4 == 0); |
| 421 | |
| 422 | vgpr = LLVMBuildBitCast(builder, vgpr, LLVMVectorType(ctx->i32, vgpr_size / 4), ""); |
| 423 | vgpr0 = LLVMBuildExtractElement(builder, vgpr, ctx->i32_0, ""); |
| 424 | vgpr0 = LLVMBuildCall(builder, inlineasm, &vgpr0, 1, ""); |
| 425 | vgpr = LLVMBuildInsertElement(builder, vgpr, vgpr0, ctx->i32_0, ""); |
| 426 | vgpr = LLVMBuildBitCast(builder, vgpr, vgpr_type, ""); |
| 427 | |
| 428 | *pvgpr = vgpr; |
| 429 | } |
| 430 | } |
| 431 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 432 | LLVMValueRef |
Timothy Arceri | b7b89bb | 2018-02-02 13:54:48 +1100 | [diff] [blame] | 433 | ac_build_shader_clock(struct ac_llvm_context *ctx) |
| 434 | { |
| 435 | LLVMValueRef tmp = ac_build_intrinsic(ctx, "llvm.readcyclecounter", |
| 436 | ctx->i64, NULL, 0, 0); |
| 437 | return LLVMBuildBitCast(ctx->builder, tmp, ctx->v2i32, ""); |
| 438 | } |
| 439 | |
| 440 | LLVMValueRef |
Connor Abbott | bd73b89 | 2017-06-05 15:20:04 -0700 | [diff] [blame] | 441 | ac_build_ballot(struct ac_llvm_context *ctx, |
| 442 | LLVMValueRef value) |
| 443 | { |
Samuel Pitoiset | b5012a0 | 2019-06-14 12:00:26 +0200 | [diff] [blame^] | 444 | const char *name = HAVE_LLVM >= 0x900 ? "llvm.amdgcn.icmp.i64.i32" : "llvm.amdgcn.icmp.i32"; |
Connor Abbott | bd73b89 | 2017-06-05 15:20:04 -0700 | [diff] [blame] | 445 | LLVMValueRef args[3] = { |
| 446 | value, |
| 447 | ctx->i32_0, |
| 448 | LLVMConstInt(ctx->i32, LLVMIntNE, 0) |
| 449 | }; |
| 450 | |
| 451 | /* We currently have no other way to prevent LLVM from lifting the icmp |
| 452 | * calls to a dominating basic block. |
| 453 | */ |
| 454 | ac_build_optimization_barrier(ctx, &args[0]); |
| 455 | |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 456 | args[0] = ac_to_integer(ctx, args[0]); |
Connor Abbott | bd73b89 | 2017-06-05 15:20:04 -0700 | [diff] [blame] | 457 | |
Samuel Pitoiset | b5012a0 | 2019-06-14 12:00:26 +0200 | [diff] [blame^] | 458 | return ac_build_intrinsic(ctx, name, |
Connor Abbott | bd73b89 | 2017-06-05 15:20:04 -0700 | [diff] [blame] | 459 | ctx->i64, args, 3, |
| 460 | AC_FUNC_ATTR_NOUNWIND | |
| 461 | AC_FUNC_ATTR_READNONE | |
| 462 | AC_FUNC_ATTR_CONVERGENT); |
| 463 | } |
| 464 | |
Marek Olšák | 35cd57d | 2019-02-12 15:00:53 -0500 | [diff] [blame] | 465 | LLVMValueRef ac_get_i1_sgpr_mask(struct ac_llvm_context *ctx, |
| 466 | LLVMValueRef value) |
| 467 | { |
Samuel Pitoiset | b5012a0 | 2019-06-14 12:00:26 +0200 | [diff] [blame^] | 468 | const char *name = HAVE_LLVM >= 0x900 ? "llvm.amdgcn.icmp.i64.i1" : "llvm.amdgcn.icmp.i1"; |
Marek Olšák | 35cd57d | 2019-02-12 15:00:53 -0500 | [diff] [blame] | 469 | LLVMValueRef args[3] = { |
| 470 | value, |
| 471 | ctx->i1false, |
| 472 | LLVMConstInt(ctx->i32, LLVMIntNE, 0), |
| 473 | }; |
| 474 | |
| 475 | assert(HAVE_LLVM >= 0x0800); |
Samuel Pitoiset | b5012a0 | 2019-06-14 12:00:26 +0200 | [diff] [blame^] | 476 | return ac_build_intrinsic(ctx, name, ctx->i64, args, 3, |
Marek Olšák | 35cd57d | 2019-02-12 15:00:53 -0500 | [diff] [blame] | 477 | AC_FUNC_ATTR_NOUNWIND | |
| 478 | AC_FUNC_ATTR_READNONE | |
| 479 | AC_FUNC_ATTR_CONVERGENT); |
| 480 | } |
| 481 | |
Connor Abbott | bd73b89 | 2017-06-05 15:20:04 -0700 | [diff] [blame] | 482 | LLVMValueRef |
Connor Abbott | b8a51c8 | 2017-06-06 16:40:26 -0700 | [diff] [blame] | 483 | ac_build_vote_all(struct ac_llvm_context *ctx, LLVMValueRef value) |
| 484 | { |
| 485 | LLVMValueRef active_set = ac_build_ballot(ctx, ctx->i32_1); |
| 486 | LLVMValueRef vote_set = ac_build_ballot(ctx, value); |
| 487 | return LLVMBuildICmp(ctx->builder, LLVMIntEQ, vote_set, active_set, ""); |
| 488 | } |
| 489 | |
| 490 | LLVMValueRef |
| 491 | ac_build_vote_any(struct ac_llvm_context *ctx, LLVMValueRef value) |
| 492 | { |
| 493 | LLVMValueRef vote_set = ac_build_ballot(ctx, value); |
| 494 | return LLVMBuildICmp(ctx->builder, LLVMIntNE, vote_set, |
| 495 | LLVMConstInt(ctx->i64, 0, 0), ""); |
| 496 | } |
| 497 | |
| 498 | LLVMValueRef |
| 499 | ac_build_vote_eq(struct ac_llvm_context *ctx, LLVMValueRef value) |
| 500 | { |
| 501 | LLVMValueRef active_set = ac_build_ballot(ctx, ctx->i32_1); |
| 502 | LLVMValueRef vote_set = ac_build_ballot(ctx, value); |
| 503 | |
| 504 | LLVMValueRef all = LLVMBuildICmp(ctx->builder, LLVMIntEQ, |
| 505 | vote_set, active_set, ""); |
| 506 | LLVMValueRef none = LLVMBuildICmp(ctx->builder, LLVMIntEQ, |
| 507 | vote_set, |
| 508 | LLVMConstInt(ctx->i64, 0, 0), ""); |
| 509 | return LLVMBuildOr(ctx->builder, all, none, ""); |
| 510 | } |
| 511 | |
| 512 | LLVMValueRef |
Timothy Arceri | caf15ce | 2017-11-10 13:55:48 +1100 | [diff] [blame] | 513 | ac_build_varying_gather_values(struct ac_llvm_context *ctx, LLVMValueRef *values, |
| 514 | unsigned value_count, unsigned component) |
| 515 | { |
| 516 | LLVMValueRef vec = NULL; |
| 517 | |
| 518 | if (value_count == 1) { |
| 519 | return values[component]; |
| 520 | } else if (!value_count) |
| 521 | unreachable("value_count is 0"); |
| 522 | |
| 523 | for (unsigned i = component; i < value_count + component; i++) { |
| 524 | LLVMValueRef value = values[i]; |
| 525 | |
Timothy Arceri | 5b9362c | 2018-01-19 16:48:43 +1100 | [diff] [blame] | 526 | if (i == component) |
Timothy Arceri | caf15ce | 2017-11-10 13:55:48 +1100 | [diff] [blame] | 527 | vec = LLVMGetUndef( LLVMVectorType(LLVMTypeOf(value), value_count)); |
| 528 | LLVMValueRef index = LLVMConstInt(ctx->i32, i - component, false); |
| 529 | vec = LLVMBuildInsertElement(ctx->builder, vec, value, index, ""); |
| 530 | } |
| 531 | return vec; |
| 532 | } |
| 533 | |
| 534 | LLVMValueRef |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 535 | ac_build_gather_values_extended(struct ac_llvm_context *ctx, |
| 536 | LLVMValueRef *values, |
| 537 | unsigned value_count, |
| 538 | unsigned value_stride, |
Nicolai Hähnle | ac2ab5a | 2017-06-25 13:04:51 +0200 | [diff] [blame] | 539 | bool load, |
| 540 | bool always_vector) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 541 | { |
| 542 | LLVMBuilderRef builder = ctx->builder; |
Marek Olšák | c7878b0 | 2017-02-23 01:34:27 +0100 | [diff] [blame] | 543 | LLVMValueRef vec = NULL; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 544 | unsigned i; |
| 545 | |
Nicolai Hähnle | ac2ab5a | 2017-06-25 13:04:51 +0200 | [diff] [blame] | 546 | if (value_count == 1 && !always_vector) { |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 547 | if (load) |
| 548 | return LLVMBuildLoad(builder, values[0], ""); |
| 549 | return values[0]; |
| 550 | } else if (!value_count) |
| 551 | unreachable("value_count is 0"); |
| 552 | |
| 553 | for (i = 0; i < value_count; i++) { |
| 554 | LLVMValueRef value = values[i * value_stride]; |
| 555 | if (load) |
| 556 | value = LLVMBuildLoad(builder, value, ""); |
| 557 | |
| 558 | if (!i) |
| 559 | vec = LLVMGetUndef( LLVMVectorType(LLVMTypeOf(value), value_count)); |
| 560 | LLVMValueRef index = LLVMConstInt(ctx->i32, i, false); |
| 561 | vec = LLVMBuildInsertElement(builder, vec, value, index, ""); |
| 562 | } |
| 563 | return vec; |
| 564 | } |
| 565 | |
| 566 | LLVMValueRef |
| 567 | ac_build_gather_values(struct ac_llvm_context *ctx, |
| 568 | LLVMValueRef *values, |
| 569 | unsigned value_count) |
| 570 | { |
Nicolai Hähnle | ac2ab5a | 2017-06-25 13:04:51 +0200 | [diff] [blame] | 571 | 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] | 572 | } |
| 573 | |
Connor Abbott | 59535b0 | 2018-10-18 15:30:11 +0200 | [diff] [blame] | 574 | /* Expand a scalar or vector to <dst_channels x type> by filling the remaining |
| 575 | * channels with undef. Extract at most src_channels components from the input. |
| 576 | */ |
Samuel Pitoiset | 2154fac | 2019-02-12 15:09:29 +0100 | [diff] [blame] | 577 | static LLVMValueRef |
| 578 | ac_build_expand(struct ac_llvm_context *ctx, |
| 579 | LLVMValueRef value, |
| 580 | unsigned src_channels, |
| 581 | unsigned dst_channels) |
Connor Abbott | 59535b0 | 2018-10-18 15:30:11 +0200 | [diff] [blame] | 582 | { |
| 583 | LLVMTypeRef elemtype; |
| 584 | LLVMValueRef chan[dst_channels]; |
| 585 | |
| 586 | if (LLVMGetTypeKind(LLVMTypeOf(value)) == LLVMVectorTypeKind) { |
| 587 | unsigned vec_size = LLVMGetVectorSize(LLVMTypeOf(value)); |
| 588 | |
| 589 | if (src_channels == dst_channels && vec_size == dst_channels) |
| 590 | return value; |
| 591 | |
| 592 | src_channels = MIN2(src_channels, vec_size); |
| 593 | |
| 594 | for (unsigned i = 0; i < src_channels; i++) |
| 595 | chan[i] = ac_llvm_extract_elem(ctx, value, i); |
| 596 | |
| 597 | elemtype = LLVMGetElementType(LLVMTypeOf(value)); |
| 598 | } else { |
| 599 | if (src_channels) { |
| 600 | assert(src_channels == 1); |
| 601 | chan[0] = value; |
| 602 | } |
| 603 | elemtype = LLVMTypeOf(value); |
| 604 | } |
| 605 | |
| 606 | for (unsigned i = src_channels; i < dst_channels; i++) |
| 607 | chan[i] = LLVMGetUndef(elemtype); |
| 608 | |
| 609 | return ac_build_gather_values(ctx, chan, dst_channels); |
| 610 | } |
| 611 | |
Marek Olšák | be973ed | 2018-01-30 18:34:25 +0100 | [diff] [blame] | 612 | /* Expand a scalar or vector to <4 x type> by filling the remaining channels |
| 613 | * with undef. Extract at most num_channels components from the input. |
| 614 | */ |
| 615 | LLVMValueRef ac_build_expand_to_vec4(struct ac_llvm_context *ctx, |
| 616 | LLVMValueRef value, |
| 617 | unsigned num_channels) |
| 618 | { |
Connor Abbott | 59535b0 | 2018-10-18 15:30:11 +0200 | [diff] [blame] | 619 | return ac_build_expand(ctx, value, num_channels, 4); |
Marek Olšák | be973ed | 2018-01-30 18:34:25 +0100 | [diff] [blame] | 620 | } |
| 621 | |
Marek Olšák | 77903c8 | 2018-09-21 21:30:09 -0400 | [diff] [blame] | 622 | LLVMValueRef ac_build_round(struct ac_llvm_context *ctx, LLVMValueRef value) |
| 623 | { |
| 624 | unsigned type_size = ac_get_type_size(LLVMTypeOf(value)); |
| 625 | const char *name; |
| 626 | |
| 627 | if (type_size == 2) |
| 628 | name = "llvm.rint.f16"; |
| 629 | else if (type_size == 4) |
| 630 | name = "llvm.rint.f32"; |
| 631 | else |
| 632 | name = "llvm.rint.f64"; |
| 633 | |
| 634 | return ac_build_intrinsic(ctx, name, LLVMTypeOf(value), &value, 1, |
| 635 | AC_FUNC_ATTR_READNONE); |
| 636 | } |
| 637 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 638 | LLVMValueRef |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 639 | ac_build_fdiv(struct ac_llvm_context *ctx, |
| 640 | LLVMValueRef num, |
| 641 | LLVMValueRef den) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 642 | { |
Marek Olšák | a5f35aa | 2018-08-24 23:00:37 -0400 | [diff] [blame] | 643 | /* If we do (num / den), LLVM >= 7.0 does: |
| 644 | * return num * v_rcp_f32(den * (fabs(den) > 0x1.0p+96f ? 0x1.0p-32f : 1.0f)); |
| 645 | * |
| 646 | * If we do (num * (1 / den)), LLVM does: |
| 647 | * return num * v_rcp_f32(den); |
| 648 | */ |
Rhys Perry | 4261edc | 2018-12-06 14:22:17 +0000 | [diff] [blame] | 649 | LLVMValueRef one = LLVMConstReal(LLVMTypeOf(num), 1.0); |
Marek Olšák | 8676af1 | 2018-10-29 17:22:03 -0400 | [diff] [blame] | 650 | LLVMValueRef rcp = LLVMBuildFDiv(ctx->builder, one, den, ""); |
Marek Olšák | a5f35aa | 2018-08-24 23:00:37 -0400 | [diff] [blame] | 651 | LLVMValueRef ret = LLVMBuildFMul(ctx->builder, num, rcp, ""); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 652 | |
Samuel Pitoiset | d43e72f | 2017-12-12 18:10:20 +0100 | [diff] [blame] | 653 | /* Use v_rcp_f32 instead of precise division. */ |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 654 | if (!LLVMIsConstant(ret)) |
| 655 | LLVMSetMetadata(ret, ctx->fpmath_md_kind, ctx->fpmath_md_2p5_ulp); |
| 656 | return ret; |
| 657 | } |
| 658 | |
Marek Olšák | bfc7956 | 2018-09-22 21:17:52 -0400 | [diff] [blame] | 659 | /* See fast_idiv_by_const.h. */ |
| 660 | /* Set: increment = util_fast_udiv_info::increment ? multiplier : 0; */ |
| 661 | LLVMValueRef ac_build_fast_udiv(struct ac_llvm_context *ctx, |
| 662 | LLVMValueRef num, |
| 663 | LLVMValueRef multiplier, |
| 664 | LLVMValueRef pre_shift, |
| 665 | LLVMValueRef post_shift, |
| 666 | LLVMValueRef increment) |
| 667 | { |
| 668 | LLVMBuilderRef builder = ctx->builder; |
| 669 | |
| 670 | num = LLVMBuildLShr(builder, num, pre_shift, ""); |
| 671 | num = LLVMBuildMul(builder, |
| 672 | LLVMBuildZExt(builder, num, ctx->i64, ""), |
| 673 | LLVMBuildZExt(builder, multiplier, ctx->i64, ""), ""); |
| 674 | num = LLVMBuildAdd(builder, num, |
| 675 | LLVMBuildZExt(builder, increment, ctx->i64, ""), ""); |
| 676 | num = LLVMBuildLShr(builder, num, LLVMConstInt(ctx->i64, 32, 0), ""); |
| 677 | num = LLVMBuildTrunc(builder, num, ctx->i32, ""); |
| 678 | return LLVMBuildLShr(builder, num, post_shift, ""); |
| 679 | } |
| 680 | |
| 681 | /* See fast_idiv_by_const.h. */ |
| 682 | /* If num != UINT_MAX, this more efficient version can be used. */ |
| 683 | /* Set: increment = util_fast_udiv_info::increment; */ |
| 684 | LLVMValueRef ac_build_fast_udiv_nuw(struct ac_llvm_context *ctx, |
| 685 | LLVMValueRef num, |
| 686 | LLVMValueRef multiplier, |
| 687 | LLVMValueRef pre_shift, |
| 688 | LLVMValueRef post_shift, |
| 689 | LLVMValueRef increment) |
| 690 | { |
| 691 | LLVMBuilderRef builder = ctx->builder; |
| 692 | |
| 693 | num = LLVMBuildLShr(builder, num, pre_shift, ""); |
| 694 | num = LLVMBuildNUWAdd(builder, num, increment, ""); |
| 695 | num = LLVMBuildMul(builder, |
| 696 | LLVMBuildZExt(builder, num, ctx->i64, ""), |
| 697 | LLVMBuildZExt(builder, multiplier, ctx->i64, ""), ""); |
| 698 | num = LLVMBuildLShr(builder, num, LLVMConstInt(ctx->i64, 32, 0), ""); |
| 699 | num = LLVMBuildTrunc(builder, num, ctx->i32, ""); |
| 700 | return LLVMBuildLShr(builder, num, post_shift, ""); |
| 701 | } |
| 702 | |
| 703 | /* See fast_idiv_by_const.h. */ |
| 704 | /* Both operands must fit in 31 bits and the divisor must not be 1. */ |
| 705 | LLVMValueRef ac_build_fast_udiv_u31_d_not_one(struct ac_llvm_context *ctx, |
| 706 | LLVMValueRef num, |
| 707 | LLVMValueRef multiplier, |
| 708 | LLVMValueRef post_shift) |
| 709 | { |
| 710 | LLVMBuilderRef builder = ctx->builder; |
| 711 | |
| 712 | num = LLVMBuildMul(builder, |
| 713 | LLVMBuildZExt(builder, num, ctx->i64, ""), |
| 714 | LLVMBuildZExt(builder, multiplier, ctx->i64, ""), ""); |
| 715 | num = LLVMBuildLShr(builder, num, LLVMConstInt(ctx->i64, 32, 0), ""); |
| 716 | num = LLVMBuildTrunc(builder, num, ctx->i32, ""); |
| 717 | return LLVMBuildLShr(builder, num, post_shift, ""); |
| 718 | } |
| 719 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 720 | /* Coordinates for cube map selection. sc, tc, and ma are as in Table 8.27 |
| 721 | * of the OpenGL 4.5 (Compatibility Profile) specification, except ma is |
| 722 | * already multiplied by two. id is the cube face number. |
| 723 | */ |
| 724 | struct cube_selection_coords { |
| 725 | LLVMValueRef stc[2]; |
| 726 | LLVMValueRef ma; |
| 727 | LLVMValueRef id; |
| 728 | }; |
| 729 | |
| 730 | static void |
| 731 | build_cube_intrinsic(struct ac_llvm_context *ctx, |
| 732 | LLVMValueRef in[3], |
| 733 | struct cube_selection_coords *out) |
| 734 | { |
Marek Olšák | 12beef0 | 2017-04-25 02:18:10 +0200 | [diff] [blame] | 735 | LLVMTypeRef f32 = ctx->f32; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 736 | |
Marek Olšák | 12beef0 | 2017-04-25 02:18:10 +0200 | [diff] [blame] | 737 | out->stc[1] = ac_build_intrinsic(ctx, "llvm.amdgcn.cubetc", |
| 738 | f32, in, 3, AC_FUNC_ATTR_READNONE); |
| 739 | out->stc[0] = ac_build_intrinsic(ctx, "llvm.amdgcn.cubesc", |
| 740 | f32, in, 3, AC_FUNC_ATTR_READNONE); |
| 741 | out->ma = ac_build_intrinsic(ctx, "llvm.amdgcn.cubema", |
| 742 | f32, in, 3, AC_FUNC_ATTR_READNONE); |
| 743 | out->id = ac_build_intrinsic(ctx, "llvm.amdgcn.cubeid", |
| 744 | f32, in, 3, AC_FUNC_ATTR_READNONE); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 745 | } |
| 746 | |
| 747 | /** |
| 748 | * Build a manual selection sequence for cube face sc/tc coordinates and |
| 749 | * major axis vector (multiplied by 2 for consistency) for the given |
| 750 | * vec3 \p coords, for the face implied by \p selcoords. |
| 751 | * |
| 752 | * For the major axis, we always adjust the sign to be in the direction of |
| 753 | * selcoords.ma; i.e., a positive out_ma means that coords is pointed towards |
| 754 | * the selcoords major axis. |
| 755 | */ |
Nicolai Hähnle | a6ea4c1 | 2017-09-22 19:14:16 +0200 | [diff] [blame] | 756 | static void build_cube_select(struct ac_llvm_context *ctx, |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 757 | const struct cube_selection_coords *selcoords, |
| 758 | const LLVMValueRef *coords, |
| 759 | LLVMValueRef *out_st, |
| 760 | LLVMValueRef *out_ma) |
| 761 | { |
Nicolai Hähnle | a6ea4c1 | 2017-09-22 19:14:16 +0200 | [diff] [blame] | 762 | LLVMBuilderRef builder = ctx->builder; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 763 | LLVMTypeRef f32 = LLVMTypeOf(coords[0]); |
| 764 | LLVMValueRef is_ma_positive; |
| 765 | LLVMValueRef sgn_ma; |
| 766 | LLVMValueRef is_ma_z, is_not_ma_z; |
| 767 | LLVMValueRef is_ma_y; |
| 768 | LLVMValueRef is_ma_x; |
| 769 | LLVMValueRef sgn; |
| 770 | LLVMValueRef tmp; |
| 771 | |
| 772 | is_ma_positive = LLVMBuildFCmp(builder, LLVMRealUGE, |
| 773 | selcoords->ma, LLVMConstReal(f32, 0.0), ""); |
| 774 | sgn_ma = LLVMBuildSelect(builder, is_ma_positive, |
| 775 | LLVMConstReal(f32, 1.0), LLVMConstReal(f32, -1.0), ""); |
| 776 | |
| 777 | is_ma_z = LLVMBuildFCmp(builder, LLVMRealUGE, selcoords->id, LLVMConstReal(f32, 4.0), ""); |
| 778 | is_not_ma_z = LLVMBuildNot(builder, is_ma_z, ""); |
| 779 | is_ma_y = LLVMBuildAnd(builder, is_not_ma_z, |
| 780 | LLVMBuildFCmp(builder, LLVMRealUGE, selcoords->id, LLVMConstReal(f32, 2.0), ""), ""); |
| 781 | is_ma_x = LLVMBuildAnd(builder, is_not_ma_z, LLVMBuildNot(builder, is_ma_y, ""), ""); |
| 782 | |
| 783 | /* Select sc */ |
Nicolai Hähnle | 5be5c1e | 2017-09-22 19:05:52 +0200 | [diff] [blame] | 784 | tmp = LLVMBuildSelect(builder, is_ma_x, coords[2], coords[0], ""); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 785 | sgn = LLVMBuildSelect(builder, is_ma_y, LLVMConstReal(f32, 1.0), |
Nicolai Hähnle | 5be5c1e | 2017-09-22 19:05:52 +0200 | [diff] [blame] | 786 | LLVMBuildSelect(builder, is_ma_z, sgn_ma, |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 787 | LLVMBuildFNeg(builder, sgn_ma, ""), ""), ""); |
| 788 | out_st[0] = LLVMBuildFMul(builder, tmp, sgn, ""); |
| 789 | |
| 790 | /* Select tc */ |
| 791 | tmp = LLVMBuildSelect(builder, is_ma_y, coords[2], coords[1], ""); |
Nicolai Hähnle | 5be5c1e | 2017-09-22 19:05:52 +0200 | [diff] [blame] | 792 | sgn = LLVMBuildSelect(builder, is_ma_y, sgn_ma, |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 793 | LLVMConstReal(f32, -1.0), ""); |
| 794 | out_st[1] = LLVMBuildFMul(builder, tmp, sgn, ""); |
| 795 | |
| 796 | /* Select ma */ |
| 797 | tmp = LLVMBuildSelect(builder, is_ma_z, coords[2], |
| 798 | LLVMBuildSelect(builder, is_ma_y, coords[1], coords[0], ""), ""); |
Nicolai Hähnle | a6ea4c1 | 2017-09-22 19:14:16 +0200 | [diff] [blame] | 799 | tmp = ac_build_intrinsic(ctx, "llvm.fabs.f32", |
| 800 | ctx->f32, &tmp, 1, AC_FUNC_ATTR_READNONE); |
| 801 | *out_ma = LLVMBuildFMul(builder, tmp, LLVMConstReal(f32, 2.0), ""); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 802 | } |
| 803 | |
| 804 | void |
| 805 | ac_prepare_cube_coords(struct ac_llvm_context *ctx, |
Nicolai Hähnle | e0af3be | 2017-09-13 10:47:02 +0200 | [diff] [blame] | 806 | bool is_deriv, bool is_array, bool is_lod, |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 807 | LLVMValueRef *coords_arg, |
| 808 | LLVMValueRef *derivs_arg) |
| 809 | { |
| 810 | |
| 811 | LLVMBuilderRef builder = ctx->builder; |
| 812 | struct cube_selection_coords selcoords; |
| 813 | LLVMValueRef coords[3]; |
| 814 | LLVMValueRef invma; |
| 815 | |
Nicolai Hähnle | e0af3be | 2017-09-13 10:47:02 +0200 | [diff] [blame] | 816 | if (is_array && !is_lod) { |
Marek Olšák | 77903c8 | 2018-09-21 21:30:09 -0400 | [diff] [blame] | 817 | LLVMValueRef tmp = ac_build_round(ctx, coords_arg[3]); |
Nicolai Hähnle | 94736d3 | 2017-09-13 15:33:23 +0200 | [diff] [blame] | 818 | |
| 819 | /* Section 8.9 (Texture Functions) of the GLSL 4.50 spec says: |
| 820 | * |
| 821 | * "For Array forms, the array layer used will be |
| 822 | * |
| 823 | * max(0, min(d−1, floor(layer+0.5))) |
| 824 | * |
| 825 | * where d is the depth of the texture array and layer |
| 826 | * comes from the component indicated in the tables below. |
| 827 | * Workaroudn for an issue where the layer is taken from a |
| 828 | * helper invocation which happens to fall on a different |
| 829 | * layer due to extrapolation." |
| 830 | * |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 831 | * GFX8 and earlier attempt to implement this in hardware by |
Nicolai Hähnle | 94736d3 | 2017-09-13 15:33:23 +0200 | [diff] [blame] | 832 | * clamping the value of coords[2] = (8 * layer) + face. |
| 833 | * Unfortunately, this means that the we end up with the wrong |
| 834 | * face when clamping occurs. |
| 835 | * |
| 836 | * Clamp the layer earlier to work around the issue. |
| 837 | */ |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 838 | if (ctx->chip_class <= GFX8) { |
Nicolai Hähnle | 94736d3 | 2017-09-13 15:33:23 +0200 | [diff] [blame] | 839 | LLVMValueRef ge0; |
| 840 | ge0 = LLVMBuildFCmp(builder, LLVMRealOGE, tmp, ctx->f32_0, ""); |
| 841 | tmp = LLVMBuildSelect(builder, ge0, tmp, ctx->f32_0, ""); |
| 842 | } |
| 843 | |
| 844 | coords_arg[3] = tmp; |
Nicolai Hähnle | e0af3be | 2017-09-13 10:47:02 +0200 | [diff] [blame] | 845 | } |
| 846 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 847 | build_cube_intrinsic(ctx, coords_arg, &selcoords); |
| 848 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 849 | invma = ac_build_intrinsic(ctx, "llvm.fabs.f32", |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 850 | ctx->f32, &selcoords.ma, 1, AC_FUNC_ATTR_READNONE); |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 851 | invma = ac_build_fdiv(ctx, LLVMConstReal(ctx->f32, 1.0), invma); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 852 | |
| 853 | for (int i = 0; i < 2; ++i) |
| 854 | coords[i] = LLVMBuildFMul(builder, selcoords.stc[i], invma, ""); |
| 855 | |
| 856 | coords[2] = selcoords.id; |
| 857 | |
| 858 | if (is_deriv && derivs_arg) { |
| 859 | LLVMValueRef derivs[4]; |
| 860 | int axis; |
| 861 | |
| 862 | /* Convert cube derivatives to 2D derivatives. */ |
| 863 | for (axis = 0; axis < 2; axis++) { |
| 864 | LLVMValueRef deriv_st[2]; |
| 865 | LLVMValueRef deriv_ma; |
| 866 | |
| 867 | /* Transform the derivative alongside the texture |
| 868 | * coordinate. Mathematically, the correct formula is |
| 869 | * as follows. Assume we're projecting onto the +Z face |
| 870 | * and denote by dx/dh the derivative of the (original) |
| 871 | * X texture coordinate with respect to horizontal |
| 872 | * window coordinates. The projection onto the +Z face |
| 873 | * plane is: |
| 874 | * |
| 875 | * f(x,z) = x/z |
| 876 | * |
| 877 | * Then df/dh = df/dx * dx/dh + df/dz * dz/dh |
| 878 | * = 1/z * dx/dh - x/z * 1/z * dz/dh. |
| 879 | * |
| 880 | * This motivatives the implementation below. |
| 881 | * |
| 882 | * Whether this actually gives the expected results for |
| 883 | * apps that might feed in derivatives obtained via |
| 884 | * finite differences is anyone's guess. The OpenGL spec |
| 885 | * seems awfully quiet about how textureGrad for cube |
| 886 | * maps should be handled. |
| 887 | */ |
Nicolai Hähnle | a6ea4c1 | 2017-09-22 19:14:16 +0200 | [diff] [blame] | 888 | build_cube_select(ctx, &selcoords, &derivs_arg[axis * 3], |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 889 | deriv_st, &deriv_ma); |
| 890 | |
| 891 | deriv_ma = LLVMBuildFMul(builder, deriv_ma, invma, ""); |
| 892 | |
| 893 | for (int i = 0; i < 2; ++i) |
| 894 | derivs[axis * 2 + i] = |
| 895 | LLVMBuildFSub(builder, |
| 896 | LLVMBuildFMul(builder, deriv_st[i], invma, ""), |
| 897 | LLVMBuildFMul(builder, deriv_ma, coords[i], ""), ""); |
| 898 | } |
| 899 | |
| 900 | memcpy(derivs_arg, derivs, sizeof(derivs)); |
| 901 | } |
| 902 | |
| 903 | /* Shift the texture coordinate. This must be applied after the |
| 904 | * derivative calculation. |
| 905 | */ |
| 906 | for (int i = 0; i < 2; ++i) |
| 907 | coords[i] = LLVMBuildFAdd(builder, coords[i], LLVMConstReal(ctx->f32, 1.5), ""); |
| 908 | |
| 909 | if (is_array) { |
| 910 | /* for cube arrays coord.z = coord.w(array_index) * 8 + face */ |
| 911 | /* coords_arg.w component - array_index for cube arrays */ |
Marek Olšák | 60beac9 | 2018-08-15 20:50:03 -0400 | [diff] [blame] | 912 | 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] | 913 | } |
| 914 | |
| 915 | memcpy(coords_arg, coords, sizeof(coords)); |
| 916 | } |
| 917 | |
| 918 | |
| 919 | LLVMValueRef |
| 920 | ac_build_fs_interp(struct ac_llvm_context *ctx, |
| 921 | LLVMValueRef llvm_chan, |
| 922 | LLVMValueRef attr_number, |
| 923 | LLVMValueRef params, |
| 924 | LLVMValueRef i, |
| 925 | LLVMValueRef j) |
| 926 | { |
| 927 | LLVMValueRef args[5]; |
| 928 | LLVMValueRef p1; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 929 | |
| 930 | args[0] = i; |
| 931 | args[1] = llvm_chan; |
| 932 | args[2] = attr_number; |
| 933 | args[3] = params; |
| 934 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 935 | p1 = ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p1", |
| 936 | ctx->f32, args, 4, AC_FUNC_ATTR_READNONE); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 937 | |
| 938 | args[0] = p1; |
| 939 | args[1] = j; |
| 940 | args[2] = llvm_chan; |
| 941 | args[3] = attr_number; |
| 942 | args[4] = params; |
| 943 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 944 | return ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p2", |
| 945 | ctx->f32, args, 5, AC_FUNC_ATTR_READNONE); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 946 | } |
| 947 | |
| 948 | LLVMValueRef |
Bas Nieuwenhuizen | a1fdd4a | 2019-02-22 14:16:08 +0100 | [diff] [blame] | 949 | ac_build_fs_interp_f16(struct ac_llvm_context *ctx, |
| 950 | LLVMValueRef llvm_chan, |
| 951 | LLVMValueRef attr_number, |
| 952 | LLVMValueRef params, |
| 953 | LLVMValueRef i, |
| 954 | LLVMValueRef j) |
| 955 | { |
| 956 | LLVMValueRef args[6]; |
| 957 | LLVMValueRef p1; |
| 958 | |
| 959 | args[0] = i; |
| 960 | args[1] = llvm_chan; |
| 961 | args[2] = attr_number; |
| 962 | args[3] = ctx->i1false; |
| 963 | args[4] = params; |
| 964 | |
| 965 | p1 = ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p1.f16", |
| 966 | ctx->f32, args, 5, AC_FUNC_ATTR_READNONE); |
| 967 | |
| 968 | args[0] = p1; |
| 969 | args[1] = j; |
| 970 | args[2] = llvm_chan; |
| 971 | args[3] = attr_number; |
| 972 | args[4] = ctx->i1false; |
| 973 | args[5] = params; |
| 974 | |
| 975 | return ac_build_intrinsic(ctx, "llvm.amdgcn.interp.p2.f16", |
| 976 | ctx->f16, args, 6, AC_FUNC_ATTR_READNONE); |
| 977 | } |
| 978 | |
| 979 | LLVMValueRef |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 980 | ac_build_fs_interp_mov(struct ac_llvm_context *ctx, |
| 981 | LLVMValueRef parameter, |
| 982 | LLVMValueRef llvm_chan, |
| 983 | LLVMValueRef attr_number, |
| 984 | LLVMValueRef params) |
| 985 | { |
| 986 | LLVMValueRef args[4]; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 987 | |
| 988 | args[0] = parameter; |
| 989 | args[1] = llvm_chan; |
| 990 | args[2] = attr_number; |
| 991 | args[3] = params; |
| 992 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 993 | return ac_build_intrinsic(ctx, "llvm.amdgcn.interp.mov", |
| 994 | ctx->f32, args, 4, AC_FUNC_ATTR_READNONE); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 995 | } |
| 996 | |
| 997 | LLVMValueRef |
Bas Nieuwenhuizen | e00d9a9 | 2019-01-23 01:53:59 +0100 | [diff] [blame] | 998 | ac_build_gep_ptr(struct ac_llvm_context *ctx, |
| 999 | LLVMValueRef base_ptr, |
| 1000 | LLVMValueRef index) |
| 1001 | { |
| 1002 | return LLVMBuildGEP(ctx->builder, base_ptr, &index, 1, ""); |
| 1003 | } |
| 1004 | |
| 1005 | LLVMValueRef |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1006 | ac_build_gep0(struct ac_llvm_context *ctx, |
| 1007 | LLVMValueRef base_ptr, |
| 1008 | LLVMValueRef index) |
| 1009 | { |
| 1010 | LLVMValueRef indices[2] = { |
Marek Olšák | cc36ebb | 2018-08-29 00:15:16 -0400 | [diff] [blame] | 1011 | ctx->i32_0, |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1012 | index, |
| 1013 | }; |
Marek Olšák | cc36ebb | 2018-08-29 00:15:16 -0400 | [diff] [blame] | 1014 | return LLVMBuildGEP(ctx->builder, base_ptr, indices, 2, ""); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1015 | } |
| 1016 | |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1017 | LLVMValueRef ac_build_pointer_add(struct ac_llvm_context *ctx, LLVMValueRef ptr, |
| 1018 | LLVMValueRef index) |
| 1019 | { |
| 1020 | return LLVMBuildPointerCast(ctx->builder, |
Marek Olšák | 6b0b8f1 | 2019-05-09 20:58:21 -0400 | [diff] [blame] | 1021 | LLVMBuildGEP(ctx->builder, ptr, &index, 1, ""), |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1022 | LLVMTypeOf(ptr), ""); |
| 1023 | } |
| 1024 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1025 | void |
| 1026 | ac_build_indexed_store(struct ac_llvm_context *ctx, |
| 1027 | LLVMValueRef base_ptr, LLVMValueRef index, |
| 1028 | LLVMValueRef value) |
| 1029 | { |
| 1030 | LLVMBuildStore(ctx->builder, value, |
| 1031 | ac_build_gep0(ctx, base_ptr, index)); |
| 1032 | } |
| 1033 | |
| 1034 | /** |
| 1035 | * Build an LLVM bytecode indexed load using LLVMBuildGEP + LLVMBuildLoad. |
| 1036 | * It's equivalent to doing a load from &base_ptr[index]. |
| 1037 | * |
| 1038 | * \param base_ptr Where the array starts. |
| 1039 | * \param index The element index into the array. |
| 1040 | * \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] | 1041 | * dynamically uniform (i.e. load to an SGPR) |
| 1042 | * \param invariant Whether the load is invariant (no other opcodes affect it) |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1043 | * \param no_unsigned_wraparound |
| 1044 | * For all possible re-associations and re-distributions of an expression |
| 1045 | * "base_ptr + index * elemsize" into "addr + offset" (excluding GEPs |
| 1046 | * without inbounds in base_ptr), this parameter is true if "addr + offset" |
| 1047 | * does not result in an unsigned integer wraparound. This is used for |
| 1048 | * optimal code generation of 32-bit pointer arithmetic. |
| 1049 | * |
| 1050 | * For example, a 32-bit immediate offset that causes a 32-bit unsigned |
| 1051 | * integer wraparound can't be an imm offset in s_load_dword, because |
| 1052 | * the instruction performs "addr + offset" in 64 bits. |
| 1053 | * |
| 1054 | * Expected usage for bindless textures by chaining GEPs: |
| 1055 | * // possible unsigned wraparound, don't use InBounds: |
| 1056 | * ptr1 = LLVMBuildGEP(base_ptr, index); |
| 1057 | * image = load(ptr1); // becomes "s_load ptr1, 0" |
| 1058 | * |
| 1059 | * ptr2 = LLVMBuildInBoundsGEP(ptr1, 32 / elemsize); |
| 1060 | * sampler = load(ptr2); // becomes "s_load ptr1, 32" thanks to InBounds |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1061 | */ |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1062 | static LLVMValueRef |
| 1063 | ac_build_load_custom(struct ac_llvm_context *ctx, LLVMValueRef base_ptr, |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1064 | LLVMValueRef index, bool uniform, bool invariant, |
| 1065 | bool no_unsigned_wraparound) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1066 | { |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1067 | LLVMValueRef pointer, result; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1068 | |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1069 | if (no_unsigned_wraparound && |
Marek Olšák | a668c8d | 2018-09-07 18:44:54 -0400 | [diff] [blame] | 1070 | LLVMGetPointerAddressSpace(LLVMTypeOf(base_ptr)) == AC_ADDR_SPACE_CONST_32BIT) |
Marek Olšák | 6b0b8f1 | 2019-05-09 20:58:21 -0400 | [diff] [blame] | 1071 | pointer = LLVMBuildInBoundsGEP(ctx->builder, base_ptr, &index, 1, ""); |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1072 | else |
Marek Olšák | 6b0b8f1 | 2019-05-09 20:58:21 -0400 | [diff] [blame] | 1073 | pointer = LLVMBuildGEP(ctx->builder, base_ptr, &index, 1, ""); |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1074 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1075 | if (uniform) |
| 1076 | LLVMSetMetadata(pointer, ctx->uniform_md_kind, ctx->empty_md); |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1077 | result = LLVMBuildLoad(ctx->builder, pointer, ""); |
| 1078 | if (invariant) |
| 1079 | LLVMSetMetadata(result, ctx->invariant_load_md_kind, ctx->empty_md); |
| 1080 | return result; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1081 | } |
| 1082 | |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1083 | LLVMValueRef ac_build_load(struct ac_llvm_context *ctx, LLVMValueRef base_ptr, |
| 1084 | LLVMValueRef index) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1085 | { |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1086 | return ac_build_load_custom(ctx, base_ptr, index, false, false, false); |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1087 | } |
| 1088 | |
| 1089 | LLVMValueRef ac_build_load_invariant(struct ac_llvm_context *ctx, |
| 1090 | LLVMValueRef base_ptr, LLVMValueRef index) |
| 1091 | { |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1092 | return ac_build_load_custom(ctx, base_ptr, index, false, true, false); |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1093 | } |
| 1094 | |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1095 | /* This assumes that there is no unsigned integer wraparound during the address |
| 1096 | * computation, excluding all GEPs within base_ptr. */ |
Marek Olšák | 854593b | 2017-10-08 20:05:44 +0200 | [diff] [blame] | 1097 | LLVMValueRef ac_build_load_to_sgpr(struct ac_llvm_context *ctx, |
| 1098 | LLVMValueRef base_ptr, LLVMValueRef index) |
| 1099 | { |
Marek Olšák | be0bd95 | 2018-08-29 01:34:46 -0400 | [diff] [blame] | 1100 | return ac_build_load_custom(ctx, base_ptr, index, true, true, true); |
| 1101 | } |
| 1102 | |
| 1103 | /* See ac_build_load_custom() documentation. */ |
| 1104 | LLVMValueRef ac_build_load_to_sgpr_uint_wraparound(struct ac_llvm_context *ctx, |
| 1105 | LLVMValueRef base_ptr, LLVMValueRef index) |
| 1106 | { |
| 1107 | return ac_build_load_custom(ctx, base_ptr, index, true, true, false); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1108 | } |
| 1109 | |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1110 | static void |
Marek Olšák | ff63b99 | 2019-05-24 18:57:10 -0400 | [diff] [blame] | 1111 | ac_build_llvm7_buffer_store_common(struct ac_llvm_context *ctx, |
| 1112 | LLVMValueRef rsrc, |
| 1113 | LLVMValueRef data, |
| 1114 | LLVMValueRef vindex, |
| 1115 | LLVMValueRef voffset, |
| 1116 | unsigned num_channels, |
| 1117 | bool glc, |
| 1118 | bool slc, |
| 1119 | bool writeonly_memory, |
| 1120 | bool use_format) |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1121 | { |
| 1122 | LLVMValueRef args[] = { |
| 1123 | data, |
| 1124 | LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, ""), |
| 1125 | vindex ? vindex : ctx->i32_0, |
| 1126 | voffset, |
| 1127 | LLVMConstInt(ctx->i1, glc, 0), |
| 1128 | LLVMConstInt(ctx->i1, slc, 0) |
| 1129 | }; |
| 1130 | unsigned func = CLAMP(num_channels, 1, 3) - 1; |
| 1131 | |
| 1132 | const char *type_names[] = {"f32", "v2f32", "v4f32"}; |
| 1133 | char name[256]; |
| 1134 | |
| 1135 | if (use_format) { |
| 1136 | snprintf(name, sizeof(name), "llvm.amdgcn.buffer.store.format.%s", |
| 1137 | type_names[func]); |
| 1138 | } else { |
| 1139 | snprintf(name, sizeof(name), "llvm.amdgcn.buffer.store.%s", |
| 1140 | type_names[func]); |
| 1141 | } |
| 1142 | |
| 1143 | ac_build_intrinsic(ctx, name, ctx->voidt, args, ARRAY_SIZE(args), |
| 1144 | ac_get_store_intr_attribs(writeonly_memory)); |
| 1145 | } |
| 1146 | |
| 1147 | static void |
| 1148 | ac_build_llvm8_buffer_store_common(struct ac_llvm_context *ctx, |
| 1149 | LLVMValueRef rsrc, |
| 1150 | LLVMValueRef data, |
| 1151 | LLVMValueRef vindex, |
| 1152 | LLVMValueRef voffset, |
| 1153 | LLVMValueRef soffset, |
| 1154 | unsigned num_channels, |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1155 | LLVMTypeRef return_channel_type, |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1156 | bool glc, |
| 1157 | bool slc, |
| 1158 | bool writeonly_memory, |
| 1159 | bool use_format, |
| 1160 | bool structurized) |
| 1161 | { |
| 1162 | LLVMValueRef args[6]; |
| 1163 | int idx = 0; |
| 1164 | args[idx++] = data; |
| 1165 | args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, ""); |
| 1166 | if (structurized) |
| 1167 | args[idx++] = vindex ? vindex : ctx->i32_0; |
| 1168 | args[idx++] = voffset ? voffset : ctx->i32_0; |
| 1169 | args[idx++] = soffset ? soffset : ctx->i32_0; |
| 1170 | args[idx++] = LLVMConstInt(ctx->i32, (glc ? 1 : 0) + (slc ? 2 : 0), 0); |
Samuel Pitoiset | 33f4e04 | 2019-06-03 15:09:38 +0200 | [diff] [blame] | 1171 | 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] | 1172 | const char *indexing_kind = structurized ? "struct" : "raw"; |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1173 | char name[256], type_name[8]; |
| 1174 | |
| 1175 | LLVMTypeRef type = func > 1 ? LLVMVectorType(return_channel_type, func) : return_channel_type; |
| 1176 | ac_build_type_name_for_intr(type, type_name, sizeof(type_name)); |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1177 | |
| 1178 | if (use_format) { |
| 1179 | snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.store.format.%s", |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1180 | indexing_kind, type_name); |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1181 | } else { |
| 1182 | snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.store.%s", |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1183 | indexing_kind, type_name); |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1184 | } |
| 1185 | |
| 1186 | ac_build_intrinsic(ctx, name, ctx->voidt, args, idx, |
| 1187 | ac_get_store_intr_attribs(writeonly_memory)); |
| 1188 | } |
| 1189 | |
| 1190 | void |
| 1191 | ac_build_buffer_store_format(struct ac_llvm_context *ctx, |
| 1192 | LLVMValueRef rsrc, |
| 1193 | LLVMValueRef data, |
| 1194 | LLVMValueRef vindex, |
| 1195 | LLVMValueRef voffset, |
| 1196 | unsigned num_channels, |
| 1197 | bool glc, |
Marek Olšák | 4773f5a | 2019-06-03 19:43:44 -0400 | [diff] [blame] | 1198 | bool slc, |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1199 | bool writeonly_memory) |
| 1200 | { |
| 1201 | if (HAVE_LLVM >= 0x800) { |
| 1202 | ac_build_llvm8_buffer_store_common(ctx, rsrc, data, vindex, |
| 1203 | voffset, NULL, num_channels, |
Marek Olšák | 4773f5a | 2019-06-03 19:43:44 -0400 | [diff] [blame] | 1204 | ctx->f32, glc, slc, |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1205 | writeonly_memory, true, true); |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1206 | } else { |
Marek Olšák | ff63b99 | 2019-05-24 18:57:10 -0400 | [diff] [blame] | 1207 | ac_build_llvm7_buffer_store_common(ctx, rsrc, data, vindex, voffset, |
Marek Olšák | 4773f5a | 2019-06-03 19:43:44 -0400 | [diff] [blame] | 1208 | num_channels, glc, slc, |
Marek Olšák | ff63b99 | 2019-05-24 18:57:10 -0400 | [diff] [blame] | 1209 | writeonly_memory, true); |
Samuel Pitoiset | a2073f4 | 2019-03-12 12:13:37 +0100 | [diff] [blame] | 1210 | } |
| 1211 | } |
| 1212 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1213 | /* TBUFFER_STORE_FORMAT_{X,XY,XYZ,XYZW} <- the suffix is selected by num_channels=1..4. |
| 1214 | * The type of vdata must be one of i32 (num_channels=1), v2i32 (num_channels=2), |
| 1215 | * or v4i32 (num_channels=3,4). |
| 1216 | */ |
| 1217 | void |
Marek Olšák | 27439df | 2017-02-24 01:20:35 +0100 | [diff] [blame] | 1218 | ac_build_buffer_store_dword(struct ac_llvm_context *ctx, |
| 1219 | LLVMValueRef rsrc, |
| 1220 | LLVMValueRef vdata, |
| 1221 | unsigned num_channels, |
Marek Olšák | 8cfdbba | 2017-02-24 20:23:23 +0100 | [diff] [blame] | 1222 | LLVMValueRef voffset, |
Marek Olšák | 27439df | 2017-02-24 01:20:35 +0100 | [diff] [blame] | 1223 | LLVMValueRef soffset, |
| 1224 | unsigned inst_offset, |
Marek Olšák | 27439df | 2017-02-24 01:20:35 +0100 | [diff] [blame] | 1225 | bool glc, |
Marek Olšák | 97e21cf | 2017-02-24 02:09:47 +0100 | [diff] [blame] | 1226 | bool slc, |
| 1227 | bool writeonly_memory, |
Marek Olšák | bcd3e76 | 2017-09-30 15:36:18 +0200 | [diff] [blame] | 1228 | bool swizzle_enable_hint) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1229 | { |
Samuel Pitoiset | 6970a9a | 2019-05-02 16:15:03 +0200 | [diff] [blame] | 1230 | /* Split 3 channel stores, because only LLVM 9+ support 3-channel |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1231 | * intrinsics. */ |
Samuel Pitoiset | 33f4e04 | 2019-06-03 15:09:38 +0200 | [diff] [blame] | 1232 | if (num_channels == 3 && !ac_has_vec3_support(ctx->chip_class, false)) { |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1233 | LLVMValueRef v[3], v01; |
| 1234 | |
| 1235 | for (int i = 0; i < 3; i++) { |
| 1236 | v[i] = LLVMBuildExtractElement(ctx->builder, vdata, |
| 1237 | LLVMConstInt(ctx->i32, i, 0), ""); |
| 1238 | } |
| 1239 | v01 = ac_build_gather_values(ctx, v, 2); |
| 1240 | |
| 1241 | ac_build_buffer_store_dword(ctx, rsrc, v01, 2, voffset, |
| 1242 | soffset, inst_offset, glc, slc, |
| 1243 | writeonly_memory, swizzle_enable_hint); |
| 1244 | ac_build_buffer_store_dword(ctx, rsrc, v[2], 1, voffset, |
| 1245 | soffset, inst_offset + 8, |
| 1246 | glc, slc, |
| 1247 | writeonly_memory, swizzle_enable_hint); |
| 1248 | return; |
| 1249 | } |
Dave Airlie | eba4cf7 | 2018-05-16 09:36:22 +1000 | [diff] [blame] | 1250 | |
Marek Olšák | bcd3e76 | 2017-09-30 15:36:18 +0200 | [diff] [blame] | 1251 | /* SWIZZLE_ENABLE requires that soffset isn't folded into voffset |
| 1252 | * (voffset is swizzled, but soffset isn't swizzled). |
| 1253 | * llvm.amdgcn.buffer.store doesn't have a separate soffset parameter. |
| 1254 | */ |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1255 | if (!swizzle_enable_hint) { |
| 1256 | LLVMValueRef offset = soffset; |
Marek Olšák | 97e21cf | 2017-02-24 02:09:47 +0100 | [diff] [blame] | 1257 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1258 | if (inst_offset) |
| 1259 | offset = LLVMBuildAdd(ctx->builder, offset, |
| 1260 | LLVMConstInt(ctx->i32, inst_offset, 0), ""); |
Marek Olšák | 97e21cf | 2017-02-24 02:09:47 +0100 | [diff] [blame] | 1261 | |
Samuel Pitoiset | 72e366b | 2019-03-12 14:07:16 +0100 | [diff] [blame] | 1262 | if (HAVE_LLVM >= 0x800) { |
| 1263 | ac_build_llvm8_buffer_store_common(ctx, rsrc, |
| 1264 | ac_to_float(ctx, vdata), |
| 1265 | ctx->i32_0, |
| 1266 | voffset, offset, |
| 1267 | num_channels, |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1268 | ctx->f32, |
Samuel Pitoiset | 72e366b | 2019-03-12 14:07:16 +0100 | [diff] [blame] | 1269 | glc, slc, |
| 1270 | writeonly_memory, |
| 1271 | false, false); |
| 1272 | } else { |
| 1273 | if (voffset) |
| 1274 | offset = LLVMBuildAdd(ctx->builder, offset, voffset, ""); |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1275 | |
Marek Olšák | ff63b99 | 2019-05-24 18:57:10 -0400 | [diff] [blame] | 1276 | ac_build_llvm7_buffer_store_common(ctx, rsrc, |
| 1277 | ac_to_float(ctx, vdata), |
| 1278 | ctx->i32_0, offset, |
| 1279 | num_channels, glc, slc, |
| 1280 | writeonly_memory, false); |
Samuel Pitoiset | 72e366b | 2019-03-12 14:07:16 +0100 | [diff] [blame] | 1281 | } |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1282 | return; |
Marek Olšák | 97e21cf | 2017-02-24 02:09:47 +0100 | [diff] [blame] | 1283 | } |
| 1284 | |
Samuel Pitoiset | 72e366b | 2019-03-12 14:07:16 +0100 | [diff] [blame] | 1285 | static const unsigned dfmts[] = { |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 1286 | V_008F0C_BUF_DATA_FORMAT_32, |
| 1287 | V_008F0C_BUF_DATA_FORMAT_32_32, |
| 1288 | V_008F0C_BUF_DATA_FORMAT_32_32_32, |
| 1289 | V_008F0C_BUF_DATA_FORMAT_32_32_32_32 |
| 1290 | }; |
Samuel Pitoiset | 72e366b | 2019-03-12 14:07:16 +0100 | [diff] [blame] | 1291 | unsigned dfmt = dfmts[num_channels - 1]; |
| 1292 | unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT; |
| 1293 | LLVMValueRef immoffset = LLVMConstInt(ctx->i32, inst_offset, 0); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1294 | |
Samuel Pitoiset | 72e366b | 2019-03-12 14:07:16 +0100 | [diff] [blame] | 1295 | ac_build_raw_tbuffer_store(ctx, rsrc, vdata, voffset, soffset, |
| 1296 | immoffset, num_channels, dfmt, nfmt, glc, |
| 1297 | slc, writeonly_memory); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1298 | } |
| 1299 | |
Samuel Pitoiset | d7c93b5 | 2018-01-10 20:12:09 +0100 | [diff] [blame] | 1300 | static LLVMValueRef |
Marek Olšák | ff63b99 | 2019-05-24 18:57:10 -0400 | [diff] [blame] | 1301 | ac_build_llvm7_buffer_load_common(struct ac_llvm_context *ctx, |
| 1302 | LLVMValueRef rsrc, |
| 1303 | LLVMValueRef vindex, |
| 1304 | LLVMValueRef voffset, |
| 1305 | unsigned num_channels, |
| 1306 | bool glc, |
| 1307 | bool slc, |
| 1308 | bool can_speculate, |
| 1309 | bool use_format) |
Samuel Pitoiset | d7c93b5 | 2018-01-10 20:12:09 +0100 | [diff] [blame] | 1310 | { |
| 1311 | LLVMValueRef args[] = { |
| 1312 | LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, ""), |
Marek Olšák | cc36ebb | 2018-08-29 00:15:16 -0400 | [diff] [blame] | 1313 | vindex ? vindex : ctx->i32_0, |
Samuel Pitoiset | d7c93b5 | 2018-01-10 20:12:09 +0100 | [diff] [blame] | 1314 | voffset, |
| 1315 | LLVMConstInt(ctx->i1, glc, 0), |
| 1316 | LLVMConstInt(ctx->i1, slc, 0) |
| 1317 | }; |
| 1318 | unsigned func = CLAMP(num_channels, 1, 3) - 1; |
| 1319 | |
| 1320 | LLVMTypeRef types[] = {ctx->f32, ctx->v2f32, ctx->v4f32}; |
| 1321 | const char *type_names[] = {"f32", "v2f32", "v4f32"}; |
| 1322 | char name[256]; |
| 1323 | |
| 1324 | if (use_format) { |
| 1325 | snprintf(name, sizeof(name), "llvm.amdgcn.buffer.load.format.%s", |
| 1326 | type_names[func]); |
| 1327 | } else { |
| 1328 | snprintf(name, sizeof(name), "llvm.amdgcn.buffer.load.%s", |
| 1329 | type_names[func]); |
| 1330 | } |
| 1331 | |
| 1332 | return ac_build_intrinsic(ctx, name, types[func], args, |
| 1333 | ARRAY_SIZE(args), |
| 1334 | ac_get_load_intr_attribs(can_speculate)); |
| 1335 | } |
| 1336 | |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1337 | static LLVMValueRef |
| 1338 | ac_build_llvm8_buffer_load_common(struct ac_llvm_context *ctx, |
| 1339 | LLVMValueRef rsrc, |
| 1340 | LLVMValueRef vindex, |
| 1341 | LLVMValueRef voffset, |
| 1342 | LLVMValueRef soffset, |
| 1343 | unsigned num_channels, |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1344 | LLVMTypeRef channel_type, |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1345 | bool glc, |
| 1346 | bool slc, |
| 1347 | bool can_speculate, |
| 1348 | bool use_format, |
| 1349 | bool structurized) |
| 1350 | { |
| 1351 | LLVMValueRef args[5]; |
| 1352 | int idx = 0; |
| 1353 | args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, ""); |
| 1354 | if (structurized) |
| 1355 | args[idx++] = vindex ? vindex : ctx->i32_0; |
| 1356 | args[idx++] = voffset ? voffset : ctx->i32_0; |
| 1357 | args[idx++] = soffset ? soffset : ctx->i32_0; |
| 1358 | args[idx++] = LLVMConstInt(ctx->i32, (glc ? 1 : 0) + (slc ? 2 : 0), 0); |
Samuel Pitoiset | 33f4e04 | 2019-06-03 15:09:38 +0200 | [diff] [blame] | 1359 | 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] | 1360 | const char *indexing_kind = structurized ? "struct" : "raw"; |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1361 | char name[256], type_name[8]; |
| 1362 | |
| 1363 | LLVMTypeRef type = func > 1 ? LLVMVectorType(channel_type, func) : channel_type; |
| 1364 | ac_build_type_name_for_intr(type, type_name, sizeof(type_name)); |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1365 | |
| 1366 | if (use_format) { |
| 1367 | snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.load.format.%s", |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1368 | indexing_kind, type_name); |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1369 | } else { |
| 1370 | snprintf(name, sizeof(name), "llvm.amdgcn.%s.buffer.load.%s", |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1371 | indexing_kind, type_name); |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1372 | } |
| 1373 | |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1374 | return ac_build_intrinsic(ctx, name, type, args, idx, |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1375 | ac_get_load_intr_attribs(can_speculate)); |
| 1376 | } |
| 1377 | |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1378 | LLVMValueRef |
| 1379 | ac_build_buffer_load(struct ac_llvm_context *ctx, |
| 1380 | LLVMValueRef rsrc, |
| 1381 | int num_channels, |
| 1382 | LLVMValueRef vindex, |
| 1383 | LLVMValueRef voffset, |
| 1384 | LLVMValueRef soffset, |
| 1385 | unsigned inst_offset, |
| 1386 | unsigned glc, |
Marek Olšák | e729dc7 | 2017-02-24 17:16:28 +0100 | [diff] [blame] | 1387 | unsigned slc, |
Marek Olšák | e019ea8 | 2017-05-19 15:02:34 +0200 | [diff] [blame] | 1388 | bool can_speculate, |
| 1389 | bool allow_smem) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1390 | { |
Marek Olšák | e019ea8 | 2017-05-19 15:02:34 +0200 | [diff] [blame] | 1391 | LLVMValueRef offset = LLVMConstInt(ctx->i32, inst_offset, 0); |
| 1392 | if (voffset) |
| 1393 | offset = LLVMBuildAdd(ctx->builder, offset, voffset, ""); |
| 1394 | if (soffset) |
| 1395 | offset = LLVMBuildAdd(ctx->builder, offset, soffset, ""); |
| 1396 | |
Nicolai Hähnle | 7fbd48f | 2019-01-10 23:21:46 +0100 | [diff] [blame] | 1397 | if (allow_smem && !slc && |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 1398 | (!glc || (HAVE_LLVM >= 0x0800 && ctx->chip_class >= GFX8))) { |
Marek Olšák | e019ea8 | 2017-05-19 15:02:34 +0200 | [diff] [blame] | 1399 | assert(vindex == NULL); |
| 1400 | |
Dave Airlie | 16dd0eb | 2018-01-30 13:58:05 +1000 | [diff] [blame] | 1401 | LLVMValueRef result[8]; |
Marek Olšák | e019ea8 | 2017-05-19 15:02:34 +0200 | [diff] [blame] | 1402 | |
| 1403 | for (int i = 0; i < num_channels; i++) { |
| 1404 | if (i) { |
| 1405 | offset = LLVMBuildAdd(ctx->builder, offset, |
| 1406 | LLVMConstInt(ctx->i32, 4, 0), ""); |
| 1407 | } |
Nicolai Hähnle | e4803ab | 2019-01-10 22:59:58 +0100 | [diff] [blame] | 1408 | const char *intrname = |
| 1409 | HAVE_LLVM >= 0x0800 ? "llvm.amdgcn.s.buffer.load.f32" |
Michel Dänzer | 1a20b56 | 2019-01-14 12:52:52 +0100 | [diff] [blame] | 1410 | : "llvm.SI.load.const.v4i32"; |
Nicolai Hähnle | e4803ab | 2019-01-10 22:59:58 +0100 | [diff] [blame] | 1411 | unsigned num_args = HAVE_LLVM >= 0x0800 ? 3 : 2; |
Nicolai Hähnle | 7fbd48f | 2019-01-10 23:21:46 +0100 | [diff] [blame] | 1412 | LLVMValueRef args[3] = { |
| 1413 | rsrc, |
| 1414 | offset, |
| 1415 | glc ? ctx->i32_1 : ctx->i32_0, |
| 1416 | }; |
Nicolai Hähnle | e4803ab | 2019-01-10 22:59:58 +0100 | [diff] [blame] | 1417 | result[i] = ac_build_intrinsic(ctx, intrname, |
| 1418 | ctx->f32, args, num_args, |
Marek Olšák | e019ea8 | 2017-05-19 15:02:34 +0200 | [diff] [blame] | 1419 | AC_FUNC_ATTR_READNONE | |
Nicolai Hähnle | e4803ab | 2019-01-10 22:59:58 +0100 | [diff] [blame] | 1420 | (HAVE_LLVM < 0x0800 ? AC_FUNC_ATTR_LEGACY : 0)); |
Marek Olšák | e019ea8 | 2017-05-19 15:02:34 +0200 | [diff] [blame] | 1421 | } |
| 1422 | if (num_channels == 1) |
| 1423 | return result[0]; |
| 1424 | |
Samuel Pitoiset | 33f4e04 | 2019-06-03 15:09:38 +0200 | [diff] [blame] | 1425 | if (num_channels == 3 && !ac_has_vec3_support(ctx->chip_class, false)) |
Marek Olšák | e019ea8 | 2017-05-19 15:02:34 +0200 | [diff] [blame] | 1426 | result[num_channels++] = LLVMGetUndef(ctx->f32); |
| 1427 | return ac_build_gather_values(ctx, result, num_channels); |
| 1428 | } |
| 1429 | |
Samuel Pitoiset | 30c2aca | 2019-03-12 11:18:34 +0100 | [diff] [blame] | 1430 | if (HAVE_LLVM >= 0x0800) { |
| 1431 | return ac_build_llvm8_buffer_load_common(ctx, rsrc, vindex, |
| 1432 | offset, ctx->i32_0, |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1433 | num_channels, ctx->f32, |
| 1434 | glc, slc, |
Samuel Pitoiset | 30c2aca | 2019-03-12 11:18:34 +0100 | [diff] [blame] | 1435 | can_speculate, false, |
| 1436 | false); |
| 1437 | } |
| 1438 | |
Marek Olšák | ff63b99 | 2019-05-24 18:57:10 -0400 | [diff] [blame] | 1439 | return ac_build_llvm7_buffer_load_common(ctx, rsrc, vindex, offset, |
| 1440 | num_channels, glc, slc, |
| 1441 | can_speculate, false); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 1442 | } |
| 1443 | |
Marek Olšák | 94811dc | 2017-02-25 23:40:52 +0100 | [diff] [blame] | 1444 | LLVMValueRef ac_build_buffer_load_format(struct ac_llvm_context *ctx, |
| 1445 | LLVMValueRef rsrc, |
| 1446 | LLVMValueRef vindex, |
| 1447 | LLVMValueRef voffset, |
Samuel Pitoiset | 51e14bc | 2018-01-10 20:12:10 +0100 | [diff] [blame] | 1448 | unsigned num_channels, |
Marek Olšák | bac9fa9 | 2018-01-30 19:24:07 +0100 | [diff] [blame] | 1449 | bool glc, |
Marek Olšák | e1942c9 | 2017-05-25 16:13:54 +0200 | [diff] [blame] | 1450 | bool can_speculate) |
Marek Olšák | 94811dc | 2017-02-25 23:40:52 +0100 | [diff] [blame] | 1451 | { |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1452 | if (HAVE_LLVM >= 0x800) { |
| 1453 | return ac_build_llvm8_buffer_load_common(ctx, rsrc, vindex, voffset, ctx->i32_0, |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1454 | num_channels, ctx->f32, |
| 1455 | glc, false, |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1456 | can_speculate, true, true); |
| 1457 | } |
Marek Olšák | ff63b99 | 2019-05-24 18:57:10 -0400 | [diff] [blame] | 1458 | return ac_build_llvm7_buffer_load_common(ctx, rsrc, vindex, voffset, |
| 1459 | num_channels, glc, false, |
| 1460 | can_speculate, true); |
Marek Olšák | 94811dc | 2017-02-25 23:40:52 +0100 | [diff] [blame] | 1461 | } |
| 1462 | |
Bas Nieuwenhuizen | 4503ff7 | 2018-03-28 23:54:40 +0200 | [diff] [blame] | 1463 | LLVMValueRef ac_build_buffer_load_format_gfx9_safe(struct ac_llvm_context *ctx, |
| 1464 | LLVMValueRef rsrc, |
| 1465 | LLVMValueRef vindex, |
| 1466 | LLVMValueRef voffset, |
| 1467 | unsigned num_channels, |
| 1468 | bool glc, |
| 1469 | bool can_speculate) |
| 1470 | { |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1471 | if (HAVE_LLVM >= 0x800) { |
| 1472 | return ac_build_llvm8_buffer_load_common(ctx, rsrc, vindex, voffset, ctx->i32_0, |
Samuel Pitoiset | 6fd5e39 | 2019-04-15 15:23:58 +0200 | [diff] [blame] | 1473 | num_channels, ctx->f32, |
| 1474 | glc, false, |
Bas Nieuwenhuizen | dd0172e | 2018-11-12 22:42:36 +0100 | [diff] [blame] | 1475 | can_speculate, true, true); |
| 1476 | } |
| 1477 | |
Bas Nieuwenhuizen | 4503ff7 | 2018-03-28 23:54:40 +0200 | [diff] [blame] | 1478 | LLVMValueRef elem_count = LLVMBuildExtractElement(ctx->builder, rsrc, LLVMConstInt(ctx->i32, 2, 0), ""); |
Marek Olšák | cc36ebb | 2018-08-29 00:15:16 -0400 | [diff] [blame] | 1479 | LLVMValueRef stride = LLVMBuildExtractElement(ctx->builder, rsrc, ctx->i32_1, ""); |
Bas Nieuwenhuizen | 4503ff7 | 2018-03-28 23:54:40 +0200 | [diff] [blame] | 1480 | stride = LLVMBuildLShr(ctx->builder, stride, LLVMConstInt(ctx->i32, 16, 0), ""); |
| 1481 | |
| 1482 | LLVMValueRef new_elem_count = LLVMBuildSelect(ctx->builder, |
| 1483 | LLVMBuildICmp(ctx->builder, LLVMIntUGT, elem_count, stride, ""), |
| 1484 | elem_count, stride, ""); |
| 1485 | |
| 1486 | LLVMValueRef new_rsrc = LLVMBuildInsertElement(ctx->builder, rsrc, new_elem_count, |
| 1487 | LLVMConstInt(ctx->i32, 2, 0), ""); |
| 1488 | |
Marek Olšák | ff63b99 | 2019-05-24 18:57:10 -0400 | [diff] [blame] | 1489 | return ac_build_llvm7_buffer_load_common(ctx, new_rsrc, vindex, voffset, |
| 1490 | num_channels, glc, false, |
| 1491 | can_speculate, true); |
Bas Nieuwenhuizen | 4503ff7 | 2018-03-28 23:54:40 +0200 | [diff] [blame] | 1492 | } |
| 1493 | |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1494 | static LLVMValueRef |
Samuel Pitoiset | f022314 | 2019-02-14 14:42:29 +0100 | [diff] [blame] | 1495 | ac_build_llvm8_tbuffer_load(struct ac_llvm_context *ctx, |
| 1496 | LLVMValueRef rsrc, |
| 1497 | LLVMValueRef vindex, |
| 1498 | LLVMValueRef voffset, |
| 1499 | LLVMValueRef soffset, |
| 1500 | unsigned num_channels, |
| 1501 | unsigned dfmt, |
| 1502 | unsigned nfmt, |
| 1503 | bool glc, |
| 1504 | bool slc, |
| 1505 | bool can_speculate, |
| 1506 | bool structurized) |
| 1507 | { |
| 1508 | LLVMValueRef args[6]; |
| 1509 | int idx = 0; |
| 1510 | args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, ""); |
| 1511 | if (structurized) |
| 1512 | args[idx++] = vindex ? vindex : ctx->i32_0; |
| 1513 | args[idx++] = voffset ? voffset : ctx->i32_0; |
| 1514 | args[idx++] = soffset ? soffset : ctx->i32_0; |
| 1515 | args[idx++] = LLVMConstInt(ctx->i32, dfmt | (nfmt << 4), 0); |
| 1516 | args[idx++] = LLVMConstInt(ctx->i32, (glc ? 1 : 0) + (slc ? 2 : 0), 0); |
Samuel Pitoiset | 33f4e04 | 2019-06-03 15:09:38 +0200 | [diff] [blame] | 1517 | 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] | 1518 | const char *indexing_kind = structurized ? "struct" : "raw"; |
Samuel Pitoiset | 492e828 | 2019-04-26 12:49:15 +0200 | [diff] [blame] | 1519 | char name[256], type_name[8]; |
| 1520 | |
| 1521 | LLVMTypeRef type = func > 1 ? LLVMVectorType(ctx->i32, func) : ctx->i32; |
| 1522 | ac_build_type_name_for_intr(type, type_name, sizeof(type_name)); |
Samuel Pitoiset | f022314 | 2019-02-14 14:42:29 +0100 | [diff] [blame] | 1523 | |
| 1524 | snprintf(name, sizeof(name), "llvm.amdgcn.%s.tbuffer.load.%s", |
Samuel Pitoiset | 492e828 | 2019-04-26 12:49:15 +0200 | [diff] [blame] | 1525 | indexing_kind, type_name); |
Samuel Pitoiset | f022314 | 2019-02-14 14:42:29 +0100 | [diff] [blame] | 1526 | |
Samuel Pitoiset | 492e828 | 2019-04-26 12:49:15 +0200 | [diff] [blame] | 1527 | return ac_build_intrinsic(ctx, name, type, args, idx, |
Samuel Pitoiset | f022314 | 2019-02-14 14:42:29 +0100 | [diff] [blame] | 1528 | ac_get_load_intr_attribs(can_speculate)); |
| 1529 | } |
| 1530 | |
Samuel Pitoiset | 045fae0 | 2019-03-13 14:04:13 +0100 | [diff] [blame] | 1531 | static LLVMValueRef |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1532 | ac_build_tbuffer_load(struct ac_llvm_context *ctx, |
| 1533 | LLVMValueRef rsrc, |
| 1534 | LLVMValueRef vindex, |
| 1535 | LLVMValueRef voffset, |
| 1536 | LLVMValueRef soffset, |
| 1537 | LLVMValueRef immoffset, |
| 1538 | unsigned num_channels, |
| 1539 | unsigned dfmt, |
| 1540 | unsigned nfmt, |
| 1541 | bool glc, |
| 1542 | bool slc, |
Samuel Pitoiset | 045fae0 | 2019-03-13 14:04:13 +0100 | [diff] [blame] | 1543 | bool can_speculate, |
| 1544 | bool structurized) /* only matters for LLVM 8+ */ |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1545 | { |
| 1546 | if (HAVE_LLVM >= 0x800) { |
| 1547 | voffset = LLVMBuildAdd(ctx->builder, voffset, immoffset, ""); |
| 1548 | |
| 1549 | return ac_build_llvm8_tbuffer_load(ctx, rsrc, vindex, voffset, |
| 1550 | soffset, num_channels, |
| 1551 | dfmt, nfmt, glc, slc, |
Samuel Pitoiset | 045fae0 | 2019-03-13 14:04:13 +0100 | [diff] [blame] | 1552 | can_speculate, structurized); |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1553 | } |
| 1554 | |
| 1555 | LLVMValueRef args[] = { |
| 1556 | rsrc, |
Samuel Pitoiset | 045fae0 | 2019-03-13 14:04:13 +0100 | [diff] [blame] | 1557 | vindex ? vindex : ctx->i32_0, |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1558 | voffset, |
| 1559 | soffset, |
| 1560 | immoffset, |
| 1561 | LLVMConstInt(ctx->i32, dfmt, false), |
| 1562 | LLVMConstInt(ctx->i32, nfmt, false), |
Samuel Pitoiset | 00327f8 | 2019-03-21 12:42:44 +0100 | [diff] [blame] | 1563 | LLVMConstInt(ctx->i1, glc, false), |
| 1564 | LLVMConstInt(ctx->i1, slc, false), |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1565 | }; |
| 1566 | unsigned func = CLAMP(num_channels, 1, 3) - 1; |
| 1567 | LLVMTypeRef types[] = {ctx->i32, ctx->v2i32, ctx->v4i32}; |
| 1568 | const char *type_names[] = {"i32", "v2i32", "v4i32"}; |
| 1569 | char name[256]; |
| 1570 | |
| 1571 | snprintf(name, sizeof(name), "llvm.amdgcn.tbuffer.load.%s", |
| 1572 | type_names[func]); |
| 1573 | |
| 1574 | return ac_build_intrinsic(ctx, name, types[func], args, 9, |
| 1575 | ac_get_load_intr_attribs(can_speculate)); |
| 1576 | } |
| 1577 | |
| 1578 | LLVMValueRef |
Samuel Pitoiset | 045fae0 | 2019-03-13 14:04:13 +0100 | [diff] [blame] | 1579 | ac_build_struct_tbuffer_load(struct ac_llvm_context *ctx, |
| 1580 | LLVMValueRef rsrc, |
| 1581 | LLVMValueRef vindex, |
| 1582 | LLVMValueRef voffset, |
| 1583 | LLVMValueRef soffset, |
| 1584 | LLVMValueRef immoffset, |
| 1585 | unsigned num_channels, |
| 1586 | unsigned dfmt, |
| 1587 | unsigned nfmt, |
| 1588 | bool glc, |
| 1589 | bool slc, |
| 1590 | bool can_speculate) |
| 1591 | { |
| 1592 | return ac_build_tbuffer_load(ctx, rsrc, vindex, voffset, soffset, |
| 1593 | immoffset, num_channels, dfmt, nfmt, glc, |
| 1594 | slc, can_speculate, true); |
| 1595 | } |
| 1596 | |
| 1597 | LLVMValueRef |
| 1598 | ac_build_raw_tbuffer_load(struct ac_llvm_context *ctx, |
| 1599 | LLVMValueRef rsrc, |
| 1600 | LLVMValueRef voffset, |
| 1601 | LLVMValueRef soffset, |
| 1602 | LLVMValueRef immoffset, |
| 1603 | unsigned num_channels, |
| 1604 | unsigned dfmt, |
| 1605 | unsigned nfmt, |
| 1606 | bool glc, |
| 1607 | bool slc, |
| 1608 | bool can_speculate) |
| 1609 | { |
| 1610 | return ac_build_tbuffer_load(ctx, rsrc, NULL, voffset, soffset, |
| 1611 | immoffset, num_channels, dfmt, nfmt, glc, |
| 1612 | slc, can_speculate, false); |
| 1613 | } |
| 1614 | |
| 1615 | LLVMValueRef |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1616 | ac_build_tbuffer_load_short(struct ac_llvm_context *ctx, |
| 1617 | LLVMValueRef rsrc, |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1618 | LLVMValueRef voffset, |
| 1619 | LLVMValueRef soffset, |
| 1620 | LLVMValueRef immoffset, |
| 1621 | bool glc) |
| 1622 | { |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1623 | LLVMValueRef res; |
| 1624 | |
Samuel Pitoiset | 26ea506 | 2019-03-26 12:24:52 +0100 | [diff] [blame] | 1625 | if (HAVE_LLVM >= 0x900) { |
| 1626 | voffset = LLVMBuildAdd(ctx->builder, voffset, immoffset, ""); |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1627 | |
Samuel Pitoiset | 26ea506 | 2019-03-26 12:24:52 +0100 | [diff] [blame] | 1628 | /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */ |
| 1629 | res = ac_build_llvm8_buffer_load_common(ctx, rsrc, NULL, |
| 1630 | voffset, soffset, |
| 1631 | 1, ctx->i16, glc, false, |
| 1632 | false, false, false); |
| 1633 | } else { |
| 1634 | unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_16; |
| 1635 | unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT; |
| 1636 | |
| 1637 | res = ac_build_raw_tbuffer_load(ctx, rsrc, voffset, soffset, |
| 1638 | immoffset, 1, dfmt, nfmt, glc, false, |
| 1639 | false); |
| 1640 | |
| 1641 | res = LLVMBuildTrunc(ctx->builder, res, ctx->i16, ""); |
| 1642 | } |
| 1643 | |
| 1644 | return res; |
Samuel Pitoiset | 489dac0 | 2019-02-26 13:42:26 +0100 | [diff] [blame] | 1645 | } |
| 1646 | |
Samuel Pitoiset | 104dbc6 | 2019-03-13 15:55:42 +0100 | [diff] [blame] | 1647 | LLVMValueRef |
| 1648 | ac_build_tbuffer_load_byte(struct ac_llvm_context *ctx, |
| 1649 | LLVMValueRef rsrc, |
| 1650 | LLVMValueRef voffset, |
| 1651 | LLVMValueRef soffset, |
| 1652 | LLVMValueRef immoffset, |
| 1653 | bool glc) |
| 1654 | { |
Samuel Pitoiset | 104dbc6 | 2019-03-13 15:55:42 +0100 | [diff] [blame] | 1655 | LLVMValueRef res; |
| 1656 | |
Samuel Pitoiset | 26ea506 | 2019-03-26 12:24:52 +0100 | [diff] [blame] | 1657 | if (HAVE_LLVM >= 0x900) { |
| 1658 | voffset = LLVMBuildAdd(ctx->builder, voffset, immoffset, ""); |
Samuel Pitoiset | 104dbc6 | 2019-03-13 15:55:42 +0100 | [diff] [blame] | 1659 | |
Samuel Pitoiset | 26ea506 | 2019-03-26 12:24:52 +0100 | [diff] [blame] | 1660 | /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */ |
| 1661 | res = ac_build_llvm8_buffer_load_common(ctx, rsrc, NULL, |
| 1662 | voffset, soffset, |
| 1663 | 1, ctx->i8, glc, false, |
| 1664 | false, false, false); |
| 1665 | } else { |
| 1666 | unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_8; |
| 1667 | unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT; |
| 1668 | |
| 1669 | res = ac_build_raw_tbuffer_load(ctx, rsrc, voffset, soffset, |
| 1670 | immoffset, 1, dfmt, nfmt, glc, false, |
| 1671 | false); |
| 1672 | |
| 1673 | res = LLVMBuildTrunc(ctx->builder, res, ctx->i8, ""); |
| 1674 | } |
| 1675 | |
| 1676 | return res; |
Samuel Pitoiset | 104dbc6 | 2019-03-13 15:55:42 +0100 | [diff] [blame] | 1677 | } |
Nicolai Hähnle | 81fe337 | 2019-03-29 23:03:51 +0100 | [diff] [blame] | 1678 | |
| 1679 | /** |
| 1680 | * Convert an 11- or 10-bit unsigned floating point number to an f32. |
| 1681 | * |
| 1682 | * The input exponent is expected to be biased analogous to IEEE-754, i.e. by |
| 1683 | * 2^(exp_bits-1) - 1 (as defined in OpenGL and other graphics APIs). |
| 1684 | */ |
| 1685 | static LLVMValueRef |
| 1686 | ac_ufN_to_float(struct ac_llvm_context *ctx, LLVMValueRef src, unsigned exp_bits, unsigned mant_bits) |
| 1687 | { |
| 1688 | assert(LLVMTypeOf(src) == ctx->i32); |
| 1689 | |
| 1690 | LLVMValueRef tmp; |
| 1691 | LLVMValueRef mantissa; |
| 1692 | mantissa = LLVMBuildAnd(ctx->builder, src, LLVMConstInt(ctx->i32, (1 << mant_bits) - 1, false), ""); |
| 1693 | |
| 1694 | /* Converting normal numbers is just a shift + correcting the exponent bias */ |
| 1695 | unsigned normal_shift = 23 - mant_bits; |
| 1696 | unsigned bias_shift = 127 - ((1 << (exp_bits - 1)) - 1); |
| 1697 | LLVMValueRef shifted, normal; |
| 1698 | |
| 1699 | shifted = LLVMBuildShl(ctx->builder, src, LLVMConstInt(ctx->i32, normal_shift, false), ""); |
| 1700 | normal = LLVMBuildAdd(ctx->builder, shifted, LLVMConstInt(ctx->i32, bias_shift << 23, false), ""); |
| 1701 | |
| 1702 | /* Converting nan/inf numbers is the same, but with a different exponent update */ |
| 1703 | LLVMValueRef naninf; |
| 1704 | naninf = LLVMBuildOr(ctx->builder, normal, LLVMConstInt(ctx->i32, 0xff << 23, false), ""); |
| 1705 | |
| 1706 | /* Converting denormals is the complex case: determine the leading zeros of the |
| 1707 | * mantissa to obtain the correct shift for the mantissa and exponent correction. |
| 1708 | */ |
| 1709 | LLVMValueRef denormal; |
| 1710 | LLVMValueRef params[2] = { |
| 1711 | mantissa, |
| 1712 | ctx->i1true, /* result can be undef when arg is 0 */ |
| 1713 | }; |
| 1714 | LLVMValueRef ctlz = ac_build_intrinsic(ctx, "llvm.ctlz.i32", ctx->i32, |
| 1715 | params, 2, AC_FUNC_ATTR_READNONE); |
| 1716 | |
| 1717 | /* Shift such that the leading 1 ends up as the LSB of the exponent field. */ |
| 1718 | tmp = LLVMBuildSub(ctx->builder, ctlz, LLVMConstInt(ctx->i32, 8, false), ""); |
| 1719 | denormal = LLVMBuildShl(ctx->builder, mantissa, tmp, ""); |
| 1720 | |
| 1721 | unsigned denormal_exp = bias_shift + (32 - mant_bits) - 1; |
| 1722 | tmp = LLVMBuildSub(ctx->builder, LLVMConstInt(ctx->i32, denormal_exp, false), ctlz, ""); |
| 1723 | tmp = LLVMBuildShl(ctx->builder, tmp, LLVMConstInt(ctx->i32, 23, false), ""); |
| 1724 | denormal = LLVMBuildAdd(ctx->builder, denormal, tmp, ""); |
| 1725 | |
| 1726 | /* Select the final result. */ |
| 1727 | LLVMValueRef result; |
| 1728 | |
| 1729 | tmp = LLVMBuildICmp(ctx->builder, LLVMIntUGE, src, |
| 1730 | LLVMConstInt(ctx->i32, ((1 << exp_bits) - 1) << mant_bits, false), ""); |
| 1731 | result = LLVMBuildSelect(ctx->builder, tmp, naninf, normal, ""); |
| 1732 | |
| 1733 | tmp = LLVMBuildICmp(ctx->builder, LLVMIntUGE, src, |
| 1734 | LLVMConstInt(ctx->i32, 1 << mant_bits, false), ""); |
| 1735 | result = LLVMBuildSelect(ctx->builder, tmp, result, denormal, ""); |
| 1736 | |
| 1737 | tmp = LLVMBuildICmp(ctx->builder, LLVMIntNE, src, ctx->i32_0, ""); |
| 1738 | result = LLVMBuildSelect(ctx->builder, tmp, result, ctx->i32_0, ""); |
| 1739 | |
| 1740 | return ac_to_float(ctx, result); |
| 1741 | } |
| 1742 | |
| 1743 | /** |
| 1744 | * Generate a fully general open coded buffer format fetch with all required |
| 1745 | * fixups suitable for vertex fetch, using non-format buffer loads. |
| 1746 | * |
| 1747 | * Some combinations of argument values have special interpretations: |
| 1748 | * - size = 8 bytes, format = fixed indicates PIPE_FORMAT_R11G11B10_FLOAT |
| 1749 | * - size = 8 bytes, format != {float,fixed} indicates a 2_10_10_10 data format |
| 1750 | * |
| 1751 | * \param log_size log(size of channel in bytes) |
| 1752 | * \param num_channels number of channels (1 to 4) |
| 1753 | * \param format AC_FETCH_FORMAT_xxx value |
| 1754 | * \param reverse whether XYZ channels are reversed |
| 1755 | * \param known_aligned whether the source is known to be aligned to hardware's |
| 1756 | * effective element size for loading the given format |
| 1757 | * (note: this means dword alignment for 8_8_8_8, 16_16, etc.) |
| 1758 | * \param rsrc buffer resource descriptor |
| 1759 | * \return the resulting vector of floats or integers bitcast to <4 x i32> |
| 1760 | */ |
| 1761 | LLVMValueRef |
| 1762 | ac_build_opencoded_load_format(struct ac_llvm_context *ctx, |
| 1763 | unsigned log_size, |
| 1764 | unsigned num_channels, |
| 1765 | unsigned format, |
| 1766 | bool reverse, |
| 1767 | bool known_aligned, |
| 1768 | LLVMValueRef rsrc, |
| 1769 | LLVMValueRef vindex, |
| 1770 | LLVMValueRef voffset, |
| 1771 | LLVMValueRef soffset, |
| 1772 | bool glc, |
| 1773 | bool slc, |
| 1774 | bool can_speculate) |
| 1775 | { |
| 1776 | LLVMValueRef tmp; |
| 1777 | unsigned load_log_size = log_size; |
| 1778 | unsigned load_num_channels = num_channels; |
| 1779 | if (log_size == 3) { |
| 1780 | load_log_size = 2; |
| 1781 | if (format == AC_FETCH_FORMAT_FLOAT) { |
| 1782 | load_num_channels = 2 * num_channels; |
| 1783 | } else { |
| 1784 | load_num_channels = 1; /* 10_11_11 or 2_10_10_10 */ |
| 1785 | } |
| 1786 | } |
| 1787 | |
| 1788 | int log_recombine = 0; |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 1789 | if (ctx->chip_class == GFX6 && !known_aligned) { |
Nicolai Hähnle | 81fe337 | 2019-03-29 23:03:51 +0100 | [diff] [blame] | 1790 | /* Avoid alignment restrictions by loading one byte at a time. */ |
| 1791 | load_num_channels <<= load_log_size; |
| 1792 | log_recombine = load_log_size; |
| 1793 | load_log_size = 0; |
| 1794 | } else if (load_num_channels == 2 || load_num_channels == 4) { |
| 1795 | log_recombine = -util_logbase2(load_num_channels); |
| 1796 | load_num_channels = 1; |
| 1797 | load_log_size += -log_recombine; |
| 1798 | } |
| 1799 | |
| 1800 | assert(load_log_size >= 2 || HAVE_LLVM >= 0x0900); |
| 1801 | |
| 1802 | LLVMValueRef loads[32]; /* up to 32 bytes */ |
| 1803 | for (unsigned i = 0; i < load_num_channels; ++i) { |
| 1804 | tmp = LLVMBuildAdd(ctx->builder, soffset, |
| 1805 | LLVMConstInt(ctx->i32, i << load_log_size, false), ""); |
| 1806 | if (HAVE_LLVM >= 0x0800) { |
| 1807 | LLVMTypeRef channel_type = load_log_size == 0 ? ctx->i8 : |
| 1808 | load_log_size == 1 ? ctx->i16 : ctx->i32; |
| 1809 | unsigned num_channels = 1 << (MAX2(load_log_size, 2) - 2); |
| 1810 | loads[i] = ac_build_llvm8_buffer_load_common( |
| 1811 | ctx, rsrc, vindex, voffset, tmp, |
| 1812 | num_channels, channel_type, glc, slc, |
| 1813 | can_speculate, false, true); |
| 1814 | } else { |
| 1815 | tmp = LLVMBuildAdd(ctx->builder, voffset, tmp, ""); |
Marek Olšák | ff63b99 | 2019-05-24 18:57:10 -0400 | [diff] [blame] | 1816 | loads[i] = ac_build_llvm7_buffer_load_common( |
Nicolai Hähnle | 81fe337 | 2019-03-29 23:03:51 +0100 | [diff] [blame] | 1817 | ctx, rsrc, vindex, tmp, |
| 1818 | 1 << (load_log_size - 2), glc, slc, can_speculate, false); |
| 1819 | } |
| 1820 | if (load_log_size >= 2) |
| 1821 | loads[i] = ac_to_integer(ctx, loads[i]); |
| 1822 | } |
| 1823 | |
| 1824 | if (log_recombine > 0) { |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 1825 | /* Recombine bytes if necessary (GFX6 only) */ |
Nicolai Hähnle | 81fe337 | 2019-03-29 23:03:51 +0100 | [diff] [blame] | 1826 | LLVMTypeRef dst_type = log_recombine == 2 ? ctx->i32 : ctx->i16; |
| 1827 | |
| 1828 | for (unsigned src = 0, dst = 0; src < load_num_channels; ++dst) { |
| 1829 | LLVMValueRef accum = NULL; |
| 1830 | for (unsigned i = 0; i < (1 << log_recombine); ++i, ++src) { |
| 1831 | tmp = LLVMBuildZExt(ctx->builder, loads[src], dst_type, ""); |
| 1832 | if (i == 0) { |
| 1833 | accum = tmp; |
| 1834 | } else { |
| 1835 | tmp = LLVMBuildShl(ctx->builder, tmp, |
| 1836 | LLVMConstInt(dst_type, 8 * i, false), ""); |
| 1837 | accum = LLVMBuildOr(ctx->builder, accum, tmp, ""); |
| 1838 | } |
| 1839 | } |
| 1840 | loads[dst] = accum; |
| 1841 | } |
| 1842 | } else if (log_recombine < 0) { |
| 1843 | /* Split vectors of dwords */ |
| 1844 | if (load_log_size > 2) { |
| 1845 | assert(load_num_channels == 1); |
| 1846 | LLVMValueRef loaded = loads[0]; |
| 1847 | unsigned log_split = load_log_size - 2; |
| 1848 | log_recombine += log_split; |
| 1849 | load_num_channels = 1 << log_split; |
| 1850 | load_log_size = 2; |
| 1851 | for (unsigned i = 0; i < load_num_channels; ++i) { |
| 1852 | tmp = LLVMConstInt(ctx->i32, i, false); |
| 1853 | loads[i] = LLVMBuildExtractElement(ctx->builder, loaded, tmp, ""); |
| 1854 | } |
| 1855 | } |
| 1856 | |
| 1857 | /* Further split dwords and shorts if required */ |
| 1858 | if (log_recombine < 0) { |
| 1859 | for (unsigned src = load_num_channels, |
| 1860 | dst = load_num_channels << -log_recombine; |
| 1861 | src > 0; --src) { |
| 1862 | unsigned dst_bits = 1 << (3 + load_log_size + log_recombine); |
| 1863 | LLVMTypeRef dst_type = LLVMIntTypeInContext(ctx->context, dst_bits); |
| 1864 | LLVMValueRef loaded = loads[src - 1]; |
| 1865 | LLVMTypeRef loaded_type = LLVMTypeOf(loaded); |
| 1866 | for (unsigned i = 1 << -log_recombine; i > 0; --i, --dst) { |
| 1867 | tmp = LLVMConstInt(loaded_type, dst_bits * (i - 1), false); |
| 1868 | tmp = LLVMBuildLShr(ctx->builder, loaded, tmp, ""); |
| 1869 | loads[dst - 1] = LLVMBuildTrunc(ctx->builder, tmp, dst_type, ""); |
| 1870 | } |
| 1871 | } |
| 1872 | } |
| 1873 | } |
| 1874 | |
| 1875 | if (log_size == 3) { |
| 1876 | if (format == AC_FETCH_FORMAT_FLOAT) { |
| 1877 | for (unsigned i = 0; i < num_channels; ++i) { |
| 1878 | tmp = ac_build_gather_values(ctx, &loads[2 * i], 2); |
| 1879 | loads[i] = LLVMBuildBitCast(ctx->builder, tmp, ctx->f64, ""); |
| 1880 | } |
| 1881 | } else if (format == AC_FETCH_FORMAT_FIXED) { |
| 1882 | /* 10_11_11_FLOAT */ |
| 1883 | LLVMValueRef data = loads[0]; |
| 1884 | LLVMValueRef i32_2047 = LLVMConstInt(ctx->i32, 2047, false); |
| 1885 | LLVMValueRef r = LLVMBuildAnd(ctx->builder, data, i32_2047, ""); |
| 1886 | tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 11, false), ""); |
| 1887 | LLVMValueRef g = LLVMBuildAnd(ctx->builder, tmp, i32_2047, ""); |
| 1888 | LLVMValueRef b = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 22, false), ""); |
| 1889 | |
| 1890 | loads[0] = ac_to_integer(ctx, ac_ufN_to_float(ctx, r, 5, 6)); |
| 1891 | loads[1] = ac_to_integer(ctx, ac_ufN_to_float(ctx, g, 5, 6)); |
| 1892 | loads[2] = ac_to_integer(ctx, ac_ufN_to_float(ctx, b, 5, 5)); |
| 1893 | |
| 1894 | num_channels = 3; |
| 1895 | log_size = 2; |
| 1896 | format = AC_FETCH_FORMAT_FLOAT; |
| 1897 | } else { |
| 1898 | /* 2_10_10_10 data formats */ |
| 1899 | LLVMValueRef data = loads[0]; |
| 1900 | LLVMTypeRef i10 = LLVMIntTypeInContext(ctx->context, 10); |
| 1901 | LLVMTypeRef i2 = LLVMIntTypeInContext(ctx->context, 2); |
| 1902 | loads[0] = LLVMBuildTrunc(ctx->builder, data, i10, ""); |
| 1903 | tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 10, false), ""); |
| 1904 | loads[1] = LLVMBuildTrunc(ctx->builder, tmp, i10, ""); |
| 1905 | tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 20, false), ""); |
| 1906 | loads[2] = LLVMBuildTrunc(ctx->builder, tmp, i10, ""); |
| 1907 | tmp = LLVMBuildLShr(ctx->builder, data, LLVMConstInt(ctx->i32, 30, false), ""); |
| 1908 | loads[3] = LLVMBuildTrunc(ctx->builder, tmp, i2, ""); |
| 1909 | |
| 1910 | num_channels = 4; |
| 1911 | } |
| 1912 | } |
| 1913 | |
| 1914 | if (format == AC_FETCH_FORMAT_FLOAT) { |
| 1915 | if (log_size != 2) { |
| 1916 | for (unsigned chan = 0; chan < num_channels; ++chan) { |
| 1917 | tmp = ac_to_float(ctx, loads[chan]); |
| 1918 | if (log_size == 3) |
| 1919 | tmp = LLVMBuildFPTrunc(ctx->builder, tmp, ctx->f32, ""); |
| 1920 | else if (log_size == 1) |
| 1921 | tmp = LLVMBuildFPExt(ctx->builder, tmp, ctx->f32, ""); |
| 1922 | loads[chan] = ac_to_integer(ctx, tmp); |
| 1923 | } |
| 1924 | } |
| 1925 | } else if (format == AC_FETCH_FORMAT_UINT) { |
| 1926 | if (log_size != 2) { |
| 1927 | for (unsigned chan = 0; chan < num_channels; ++chan) |
| 1928 | loads[chan] = LLVMBuildZExt(ctx->builder, loads[chan], ctx->i32, ""); |
| 1929 | } |
| 1930 | } else if (format == AC_FETCH_FORMAT_SINT) { |
| 1931 | if (log_size != 2) { |
| 1932 | for (unsigned chan = 0; chan < num_channels; ++chan) |
| 1933 | loads[chan] = LLVMBuildSExt(ctx->builder, loads[chan], ctx->i32, ""); |
| 1934 | } |
| 1935 | } else { |
| 1936 | bool unsign = format == AC_FETCH_FORMAT_UNORM || |
| 1937 | format == AC_FETCH_FORMAT_USCALED || |
| 1938 | format == AC_FETCH_FORMAT_UINT; |
| 1939 | |
| 1940 | for (unsigned chan = 0; chan < num_channels; ++chan) { |
| 1941 | if (unsign) { |
| 1942 | tmp = LLVMBuildUIToFP(ctx->builder, loads[chan], ctx->f32, ""); |
| 1943 | } else { |
| 1944 | tmp = LLVMBuildSIToFP(ctx->builder, loads[chan], ctx->f32, ""); |
| 1945 | } |
| 1946 | |
| 1947 | LLVMValueRef scale = NULL; |
| 1948 | if (format == AC_FETCH_FORMAT_FIXED) { |
| 1949 | assert(log_size == 2); |
| 1950 | scale = LLVMConstReal(ctx->f32, 1.0 / 0x10000); |
| 1951 | } else if (format == AC_FETCH_FORMAT_UNORM) { |
| 1952 | unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(loads[chan])); |
| 1953 | scale = LLVMConstReal(ctx->f32, 1.0 / (((uint64_t)1 << bits) - 1)); |
| 1954 | } else if (format == AC_FETCH_FORMAT_SNORM) { |
| 1955 | unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(loads[chan])); |
| 1956 | scale = LLVMConstReal(ctx->f32, 1.0 / (((uint64_t)1 << (bits - 1)) - 1)); |
| 1957 | } |
| 1958 | if (scale) |
| 1959 | tmp = LLVMBuildFMul(ctx->builder, tmp, scale, ""); |
| 1960 | |
| 1961 | if (format == AC_FETCH_FORMAT_SNORM) { |
| 1962 | /* Clamp to [-1, 1] */ |
| 1963 | LLVMValueRef neg_one = LLVMConstReal(ctx->f32, -1.0); |
| 1964 | LLVMValueRef clamp = |
| 1965 | LLVMBuildFCmp(ctx->builder, LLVMRealULT, tmp, neg_one, ""); |
| 1966 | tmp = LLVMBuildSelect(ctx->builder, clamp, neg_one, tmp, ""); |
| 1967 | } |
| 1968 | |
| 1969 | loads[chan] = ac_to_integer(ctx, tmp); |
| 1970 | } |
| 1971 | } |
| 1972 | |
| 1973 | while (num_channels < 4) { |
| 1974 | if (format == AC_FETCH_FORMAT_UINT || format == AC_FETCH_FORMAT_SINT) { |
| 1975 | loads[num_channels] = num_channels == 3 ? ctx->i32_1 : ctx->i32_0; |
| 1976 | } else { |
| 1977 | loads[num_channels] = ac_to_integer(ctx, num_channels == 3 ? ctx->f32_1 : ctx->f32_0); |
| 1978 | } |
| 1979 | num_channels++; |
| 1980 | } |
| 1981 | |
| 1982 | if (reverse) { |
| 1983 | tmp = loads[0]; |
| 1984 | loads[0] = loads[2]; |
| 1985 | loads[2] = tmp; |
| 1986 | } |
| 1987 | |
| 1988 | return ac_build_gather_values(ctx, loads, 4); |
| 1989 | } |
| 1990 | |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 1991 | static void |
| 1992 | ac_build_llvm8_tbuffer_store(struct ac_llvm_context *ctx, |
| 1993 | LLVMValueRef rsrc, |
| 1994 | LLVMValueRef vdata, |
| 1995 | LLVMValueRef vindex, |
| 1996 | LLVMValueRef voffset, |
| 1997 | LLVMValueRef soffset, |
| 1998 | unsigned num_channels, |
| 1999 | unsigned dfmt, |
| 2000 | unsigned nfmt, |
| 2001 | bool glc, |
| 2002 | bool slc, |
| 2003 | bool writeonly_memory, |
| 2004 | bool structurized) |
| 2005 | { |
| 2006 | LLVMValueRef args[7]; |
| 2007 | int idx = 0; |
| 2008 | args[idx++] = vdata; |
| 2009 | args[idx++] = LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, ""); |
| 2010 | if (structurized) |
| 2011 | args[idx++] = vindex ? vindex : ctx->i32_0; |
| 2012 | args[idx++] = voffset ? voffset : ctx->i32_0; |
| 2013 | args[idx++] = soffset ? soffset : ctx->i32_0; |
| 2014 | args[idx++] = LLVMConstInt(ctx->i32, dfmt | (nfmt << 4), 0); |
| 2015 | args[idx++] = LLVMConstInt(ctx->i32, (glc ? 1 : 0) + (slc ? 2 : 0), 0); |
Samuel Pitoiset | 33f4e04 | 2019-06-03 15:09:38 +0200 | [diff] [blame] | 2016 | 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] | 2017 | const char *indexing_kind = structurized ? "struct" : "raw"; |
Samuel Pitoiset | 492e828 | 2019-04-26 12:49:15 +0200 | [diff] [blame] | 2018 | char name[256], type_name[8]; |
| 2019 | |
| 2020 | LLVMTypeRef type = func > 1 ? LLVMVectorType(ctx->i32, func) : ctx->i32; |
| 2021 | ac_build_type_name_for_intr(type, type_name, sizeof(type_name)); |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 2022 | |
| 2023 | snprintf(name, sizeof(name), "llvm.amdgcn.%s.tbuffer.store.%s", |
Samuel Pitoiset | 492e828 | 2019-04-26 12:49:15 +0200 | [diff] [blame] | 2024 | indexing_kind, type_name); |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 2025 | |
| 2026 | ac_build_intrinsic(ctx, name, ctx->voidt, args, idx, |
| 2027 | ac_get_store_intr_attribs(writeonly_memory)); |
| 2028 | } |
| 2029 | |
| 2030 | static void |
| 2031 | ac_build_tbuffer_store(struct ac_llvm_context *ctx, |
| 2032 | LLVMValueRef rsrc, |
| 2033 | LLVMValueRef vdata, |
| 2034 | LLVMValueRef vindex, |
| 2035 | LLVMValueRef voffset, |
| 2036 | LLVMValueRef soffset, |
| 2037 | LLVMValueRef immoffset, |
| 2038 | unsigned num_channels, |
| 2039 | unsigned dfmt, |
| 2040 | unsigned nfmt, |
| 2041 | bool glc, |
| 2042 | bool slc, |
| 2043 | bool writeonly_memory, |
| 2044 | bool structurized) /* only matters for LLVM 8+ */ |
| 2045 | { |
| 2046 | if (HAVE_LLVM >= 0x800) { |
| 2047 | voffset = LLVMBuildAdd(ctx->builder, |
| 2048 | voffset ? voffset : ctx->i32_0, |
| 2049 | immoffset, ""); |
| 2050 | |
| 2051 | ac_build_llvm8_tbuffer_store(ctx, rsrc, vdata, vindex, voffset, |
| 2052 | soffset, num_channels, dfmt, nfmt, |
| 2053 | glc, slc, writeonly_memory, |
| 2054 | structurized); |
| 2055 | } else { |
| 2056 | LLVMValueRef params[] = { |
| 2057 | vdata, |
| 2058 | rsrc, |
| 2059 | vindex ? vindex : ctx->i32_0, |
| 2060 | voffset ? voffset : ctx->i32_0, |
| 2061 | soffset ? soffset : ctx->i32_0, |
| 2062 | immoffset, |
| 2063 | LLVMConstInt(ctx->i32, dfmt, false), |
| 2064 | LLVMConstInt(ctx->i32, nfmt, false), |
Samuel Pitoiset | 00327f8 | 2019-03-21 12:42:44 +0100 | [diff] [blame] | 2065 | LLVMConstInt(ctx->i1, glc, false), |
| 2066 | LLVMConstInt(ctx->i1, slc, false), |
Samuel Pitoiset | 2a9d331 | 2019-03-13 14:48:53 +0100 | [diff] [blame] | 2067 | }; |
| 2068 | unsigned func = CLAMP(num_channels, 1, 3) - 1; |
| 2069 | const char *type_names[] = {"i32", "v2i32", "v4i32"}; |
| 2070 | char name[256]; |
| 2071 | |
| 2072 | snprintf(name, sizeof(name), "llvm.amdgcn.tbuffer.store.%s", |
| 2073 | type_names[func]); |
| 2074 | |
| 2075 | ac_build_intrinsic(ctx, name, ctx->voidt, params, 10, |
| 2076 | ac_get_store_intr_attribs(writeonly_memory)); |
| 2077 | } |
| 2078 | } |
| 2079 | |
| 2080 | void |
| 2081 | ac_build_struct_tbuffer_store(struct ac_llvm_context *ctx, |
| 2082 | LLVMValueRef rsrc, |
| 2083 | LLVMValueRef vdata, |
| 2084 | LLVMValueRef vindex, |
| 2085 | LLVMValueRef voffset, |
| 2086 | LLVMValueRef soffset, |
| 2087 | LLVMValueRef immoffset, |
| 2088 | unsigned num_channels, |
| 2089 | unsigned dfmt, |
| 2090 | unsigned nfmt, |
| 2091 | bool glc, |
| 2092 | bool slc, |
| 2093 | bool writeonly_memory) |
| 2094 | { |
| 2095 | ac_build_tbuffer_store(ctx, rsrc, vdata, vindex, voffset, soffset, |
| 2096 | immoffset, num_channels, dfmt, nfmt, glc, slc, |
| 2097 | writeonly_memory, true); |
| 2098 | } |
| 2099 | |
| 2100 | void |
| 2101 | ac_build_raw_tbuffer_store(struct ac_llvm_context *ctx, |
| 2102 | LLVMValueRef rsrc, |
| 2103 | LLVMValueRef vdata, |
| 2104 | LLVMValueRef voffset, |
| 2105 | LLVMValueRef soffset, |
| 2106 | LLVMValueRef immoffset, |
| 2107 | unsigned num_channels, |
| 2108 | unsigned dfmt, |
| 2109 | unsigned nfmt, |
| 2110 | bool glc, |
| 2111 | bool slc, |
| 2112 | bool writeonly_memory) |
| 2113 | { |
| 2114 | ac_build_tbuffer_store(ctx, rsrc, vdata, NULL, voffset, soffset, |
| 2115 | immoffset, num_channels, dfmt, nfmt, glc, slc, |
| 2116 | writeonly_memory, false); |
| 2117 | } |
| 2118 | |
Samuel Pitoiset | 9d960c1 | 2019-03-13 14:52:27 +0100 | [diff] [blame] | 2119 | void |
| 2120 | ac_build_tbuffer_store_short(struct ac_llvm_context *ctx, |
| 2121 | LLVMValueRef rsrc, |
| 2122 | LLVMValueRef vdata, |
| 2123 | LLVMValueRef voffset, |
| 2124 | LLVMValueRef soffset, |
| 2125 | bool glc, |
| 2126 | bool writeonly_memory) |
| 2127 | { |
Samuel Pitoiset | 9d960c1 | 2019-03-13 14:52:27 +0100 | [diff] [blame] | 2128 | vdata = LLVMBuildBitCast(ctx->builder, vdata, ctx->i16, ""); |
Samuel Pitoiset | 9d960c1 | 2019-03-13 14:52:27 +0100 | [diff] [blame] | 2129 | |
Samuel Pitoiset | ad6dc13 | 2019-03-26 12:37:39 +0100 | [diff] [blame] | 2130 | if (HAVE_LLVM >= 0x900) { |
| 2131 | /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */ |
| 2132 | ac_build_llvm8_buffer_store_common(ctx, rsrc, vdata, NULL, |
| 2133 | voffset, soffset, 1, |
| 2134 | ctx->i16, glc, false, |
| 2135 | writeonly_memory, false, |
| 2136 | false); |
| 2137 | } else { |
| 2138 | unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_16; |
| 2139 | unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT; |
| 2140 | |
| 2141 | vdata = LLVMBuildZExt(ctx->builder, vdata, ctx->i32, ""); |
| 2142 | |
| 2143 | ac_build_raw_tbuffer_store(ctx, rsrc, vdata, voffset, soffset, |
| 2144 | ctx->i32_0, 1, dfmt, nfmt, glc, false, |
| 2145 | writeonly_memory); |
| 2146 | } |
Samuel Pitoiset | 9d960c1 | 2019-03-13 14:52:27 +0100 | [diff] [blame] | 2147 | } |
| 2148 | |
Samuel Pitoiset | b235d77 | 2019-03-13 16:08:32 +0100 | [diff] [blame] | 2149 | void |
| 2150 | ac_build_tbuffer_store_byte(struct ac_llvm_context *ctx, |
| 2151 | LLVMValueRef rsrc, |
| 2152 | LLVMValueRef vdata, |
| 2153 | LLVMValueRef voffset, |
| 2154 | LLVMValueRef soffset, |
| 2155 | bool glc, |
| 2156 | bool writeonly_memory) |
| 2157 | { |
Samuel Pitoiset | b235d77 | 2019-03-13 16:08:32 +0100 | [diff] [blame] | 2158 | vdata = LLVMBuildBitCast(ctx->builder, vdata, ctx->i8, ""); |
Samuel Pitoiset | b235d77 | 2019-03-13 16:08:32 +0100 | [diff] [blame] | 2159 | |
Samuel Pitoiset | ad6dc13 | 2019-03-26 12:37:39 +0100 | [diff] [blame] | 2160 | if (HAVE_LLVM >= 0x900) { |
| 2161 | /* LLVM 9+ supports i8/i16 with struct/raw intrinsics. */ |
| 2162 | ac_build_llvm8_buffer_store_common(ctx, rsrc, vdata, NULL, |
| 2163 | voffset, soffset, 1, |
| 2164 | ctx->i8, glc, false, |
| 2165 | writeonly_memory, false, |
| 2166 | false); |
| 2167 | } else { |
| 2168 | unsigned dfmt = V_008F0C_BUF_DATA_FORMAT_8; |
| 2169 | unsigned nfmt = V_008F0C_BUF_NUM_FORMAT_UINT; |
| 2170 | |
| 2171 | vdata = LLVMBuildZExt(ctx->builder, vdata, ctx->i32, ""); |
| 2172 | |
| 2173 | ac_build_raw_tbuffer_store(ctx, rsrc, vdata, voffset, soffset, |
| 2174 | ctx->i32_0, 1, dfmt, nfmt, glc, false, |
| 2175 | writeonly_memory); |
| 2176 | } |
Samuel Pitoiset | b235d77 | 2019-03-13 16:08:32 +0100 | [diff] [blame] | 2177 | } |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2178 | /** |
| 2179 | * Set range metadata on an instruction. This can only be used on load and |
| 2180 | * call instructions. If you know an instruction can only produce the values |
| 2181 | * 0, 1, 2, you would do set_range_metadata(value, 0, 3); |
| 2182 | * \p lo is the minimum value inclusive. |
| 2183 | * \p hi is the maximum value exclusive. |
| 2184 | */ |
| 2185 | static void set_range_metadata(struct ac_llvm_context *ctx, |
| 2186 | LLVMValueRef value, unsigned lo, unsigned hi) |
| 2187 | { |
| 2188 | LLVMValueRef range_md, md_args[2]; |
| 2189 | LLVMTypeRef type = LLVMTypeOf(value); |
| 2190 | LLVMContextRef context = LLVMGetTypeContext(type); |
| 2191 | |
| 2192 | md_args[0] = LLVMConstInt(type, lo, false); |
| 2193 | md_args[1] = LLVMConstInt(type, hi, false); |
| 2194 | range_md = LLVMMDNodeInContext(context, md_args, 2); |
| 2195 | LLVMSetMetadata(value, ctx->range_md_kind, range_md); |
| 2196 | } |
| 2197 | |
| 2198 | LLVMValueRef |
| 2199 | ac_get_thread_id(struct ac_llvm_context *ctx) |
| 2200 | { |
| 2201 | LLVMValueRef tid; |
| 2202 | |
Marek Olšák | 7e1faa7 | 2017-03-05 00:15:31 +0100 | [diff] [blame] | 2203 | LLVMValueRef tid_args[2]; |
| 2204 | tid_args[0] = LLVMConstInt(ctx->i32, 0xffffffff, false); |
Marek Olšák | cc36ebb | 2018-08-29 00:15:16 -0400 | [diff] [blame] | 2205 | tid_args[1] = ctx->i32_0; |
Marek Olšák | 7e1faa7 | 2017-03-05 00:15:31 +0100 | [diff] [blame] | 2206 | tid_args[1] = ac_build_intrinsic(ctx, |
| 2207 | "llvm.amdgcn.mbcnt.lo", ctx->i32, |
| 2208 | tid_args, 2, AC_FUNC_ATTR_READNONE); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2209 | |
Marek Olšák | 7e1faa7 | 2017-03-05 00:15:31 +0100 | [diff] [blame] | 2210 | tid = ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.hi", |
| 2211 | ctx->i32, tid_args, |
| 2212 | 2, AC_FUNC_ATTR_READNONE); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2213 | set_range_metadata(ctx, tid, 0, 64); |
| 2214 | return tid; |
| 2215 | } |
| 2216 | |
| 2217 | /* |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 2218 | * AMD GCN implements derivatives using the local data store (LDS) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2219 | * All writes to the LDS happen in all executing threads at |
| 2220 | * the same time. TID is the Thread ID for the current |
| 2221 | * thread and is a value between 0 and 63, representing |
| 2222 | * the thread's position in the wavefront. |
| 2223 | * |
| 2224 | * For the pixel shader threads are grouped into quads of four pixels. |
| 2225 | * The TIDs of the pixels of a quad are: |
| 2226 | * |
| 2227 | * +------+------+ |
| 2228 | * |4n + 0|4n + 1| |
| 2229 | * +------+------+ |
| 2230 | * |4n + 2|4n + 3| |
| 2231 | * +------+------+ |
| 2232 | * |
| 2233 | * So, masking the TID with 0xfffffffc yields the TID of the top left pixel |
| 2234 | * of the quad, masking with 0xfffffffd yields the TID of the top pixel of |
| 2235 | * the current pixel's column, and masking with 0xfffffffe yields the TID |
| 2236 | * of the left pixel of the current pixel's row. |
| 2237 | * |
| 2238 | * Adding 1 yields the TID of the pixel to the right of the left pixel, and |
| 2239 | * adding 2 yields the TID of the pixel below the top pixel. |
| 2240 | */ |
| 2241 | LLVMValueRef |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2242 | ac_build_ddxy(struct ac_llvm_context *ctx, |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2243 | uint32_t mask, |
| 2244 | int idx, |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2245 | LLVMValueRef val) |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2246 | { |
Samuel Pitoiset | 3fbdcd9 | 2018-11-02 09:50:32 +0100 | [diff] [blame] | 2247 | unsigned tl_lanes[4], trbl_lanes[4]; |
Rhys Perry | fd1fc25 | 2019-04-08 09:24:57 +0200 | [diff] [blame] | 2248 | char name[32], type[8]; |
Marek Olšák | 492ad9a | 2019-01-07 14:51:13 -0500 | [diff] [blame] | 2249 | LLVMValueRef tl, trbl; |
Rhys Perry | fd1fc25 | 2019-04-08 09:24:57 +0200 | [diff] [blame] | 2250 | LLVMTypeRef result_type; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2251 | LLVMValueRef result; |
| 2252 | |
Rhys Perry | fd1fc25 | 2019-04-08 09:24:57 +0200 | [diff] [blame] | 2253 | result_type = ac_to_float_type(ctx, LLVMTypeOf(val)); |
| 2254 | |
| 2255 | if (result_type == ctx->f16) |
| 2256 | val = LLVMBuildZExt(ctx->builder, val, ctx->i32, ""); |
| 2257 | |
Samuel Pitoiset | 3fbdcd9 | 2018-11-02 09:50:32 +0100 | [diff] [blame] | 2258 | for (unsigned i = 0; i < 4; ++i) { |
| 2259 | tl_lanes[i] = i & mask; |
| 2260 | trbl_lanes[i] = (i & mask) + idx; |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2261 | } |
| 2262 | |
Samuel Pitoiset | 3fbdcd9 | 2018-11-02 09:50:32 +0100 | [diff] [blame] | 2263 | tl = ac_build_quad_swizzle(ctx, val, |
| 2264 | tl_lanes[0], tl_lanes[1], |
| 2265 | tl_lanes[2], tl_lanes[3]); |
| 2266 | trbl = ac_build_quad_swizzle(ctx, val, |
| 2267 | trbl_lanes[0], trbl_lanes[1], |
| 2268 | trbl_lanes[2], trbl_lanes[3]); |
| 2269 | |
Rhys Perry | fd1fc25 | 2019-04-08 09:24:57 +0200 | [diff] [blame] | 2270 | if (result_type == ctx->f16) { |
| 2271 | tl = LLVMBuildTrunc(ctx->builder, tl, ctx->i16, ""); |
| 2272 | trbl = LLVMBuildTrunc(ctx->builder, trbl, ctx->i16, ""); |
| 2273 | } |
| 2274 | |
| 2275 | tl = LLVMBuildBitCast(ctx->builder, tl, result_type, ""); |
| 2276 | trbl = LLVMBuildBitCast(ctx->builder, trbl, result_type, ""); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2277 | result = LLVMBuildFSub(ctx->builder, trbl, tl, ""); |
Nicolai Hähnle | c0acb59 | 2018-05-01 11:06:18 +0200 | [diff] [blame] | 2278 | |
Rhys Perry | fd1fc25 | 2019-04-08 09:24:57 +0200 | [diff] [blame] | 2279 | ac_build_type_name_for_intr(result_type, type, sizeof(type)); |
| 2280 | snprintf(name, sizeof(name), "llvm.amdgcn.wqm.%s", type); |
Nicolai Hähnle | c0acb59 | 2018-05-01 11:06:18 +0200 | [diff] [blame] | 2281 | |
Rhys Perry | fd1fc25 | 2019-04-08 09:24:57 +0200 | [diff] [blame] | 2282 | return ac_build_intrinsic(ctx, name, result_type, &result, 1, 0); |
Dave Airlie | 13a28ff | 2017-02-03 10:05:00 +1000 | [diff] [blame] | 2283 | } |
Dave Airlie | f32955b | 2017-02-13 22:08:30 +0000 | [diff] [blame] | 2284 | |
| 2285 | void |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2286 | ac_build_sendmsg(struct ac_llvm_context *ctx, |
| 2287 | uint32_t msg, |
| 2288 | LLVMValueRef wave_id) |
Dave Airlie | f32955b | 2017-02-13 22:08:30 +0000 | [diff] [blame] | 2289 | { |
| 2290 | LLVMValueRef args[2]; |
Dave Airlie | f32955b | 2017-02-13 22:08:30 +0000 | [diff] [blame] | 2291 | args[0] = LLVMConstInt(ctx->i32, msg, false); |
| 2292 | args[1] = wave_id; |
Marek Olšák | 3bf1e03 | 2018-02-02 19:26:49 +0100 | [diff] [blame] | 2293 | 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] | 2294 | } |
Dave Airlie | cae1ff1 | 2017-02-16 03:42:56 +0000 | [diff] [blame] | 2295 | |
| 2296 | LLVMValueRef |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2297 | ac_build_imsb(struct ac_llvm_context *ctx, |
| 2298 | LLVMValueRef arg, |
| 2299 | LLVMTypeRef dst_type) |
Dave Airlie | cae1ff1 | 2017-02-16 03:42:56 +0000 | [diff] [blame] | 2300 | { |
Marek Olšák | 3bf1e03 | 2018-02-02 19:26:49 +0100 | [diff] [blame] | 2301 | LLVMValueRef msb = ac_build_intrinsic(ctx, "llvm.amdgcn.sffbh.i32", |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2302 | dst_type, &arg, 1, |
| 2303 | AC_FUNC_ATTR_READNONE); |
Dave Airlie | cae1ff1 | 2017-02-16 03:42:56 +0000 | [diff] [blame] | 2304 | |
| 2305 | /* The HW returns the last bit index from MSB, but NIR/TGSI wants |
| 2306 | * the index from LSB. Invert it by doing "31 - msb". */ |
| 2307 | msb = LLVMBuildSub(ctx->builder, LLVMConstInt(ctx->i32, 31, false), |
| 2308 | msb, ""); |
| 2309 | |
| 2310 | LLVMValueRef all_ones = LLVMConstInt(ctx->i32, -1, true); |
| 2311 | LLVMValueRef cond = LLVMBuildOr(ctx->builder, |
| 2312 | LLVMBuildICmp(ctx->builder, LLVMIntEQ, |
Marek Olšák | cc36ebb | 2018-08-29 00:15:16 -0400 | [diff] [blame] | 2313 | arg, ctx->i32_0, ""), |
Dave Airlie | cae1ff1 | 2017-02-16 03:42:56 +0000 | [diff] [blame] | 2314 | LLVMBuildICmp(ctx->builder, LLVMIntEQ, |
| 2315 | arg, all_ones, ""), ""); |
| 2316 | |
| 2317 | return LLVMBuildSelect(ctx->builder, cond, all_ones, msb, ""); |
| 2318 | } |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2319 | |
| 2320 | LLVMValueRef |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2321 | ac_build_umsb(struct ac_llvm_context *ctx, |
| 2322 | LLVMValueRef arg, |
| 2323 | LLVMTypeRef dst_type) |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2324 | { |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2325 | const char *intrin_name; |
| 2326 | LLVMTypeRef type; |
| 2327 | LLVMValueRef highest_bit; |
| 2328 | LLVMValueRef zero; |
Samuel Pitoiset | 5a6c8ca | 2018-09-14 12:52:36 +0200 | [diff] [blame] | 2329 | unsigned bitsize; |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2330 | |
Samuel Pitoiset | 5a6c8ca | 2018-09-14 12:52:36 +0200 | [diff] [blame] | 2331 | bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(arg)); |
| 2332 | switch (bitsize) { |
| 2333 | case 64: |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2334 | intrin_name = "llvm.ctlz.i64"; |
| 2335 | type = ctx->i64; |
| 2336 | highest_bit = LLVMConstInt(ctx->i64, 63, false); |
| 2337 | zero = ctx->i64_0; |
Samuel Pitoiset | 5a6c8ca | 2018-09-14 12:52:36 +0200 | [diff] [blame] | 2338 | break; |
| 2339 | case 32: |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2340 | intrin_name = "llvm.ctlz.i32"; |
| 2341 | type = ctx->i32; |
| 2342 | highest_bit = LLVMConstInt(ctx->i32, 31, false); |
| 2343 | zero = ctx->i32_0; |
Samuel Pitoiset | 5a6c8ca | 2018-09-14 12:52:36 +0200 | [diff] [blame] | 2344 | break; |
| 2345 | case 16: |
| 2346 | intrin_name = "llvm.ctlz.i16"; |
| 2347 | type = ctx->i16; |
| 2348 | highest_bit = LLVMConstInt(ctx->i16, 15, false); |
| 2349 | zero = ctx->i16_0; |
| 2350 | break; |
Samuel Pitoiset | 2cecf6c | 2019-04-01 16:18:09 +0200 | [diff] [blame] | 2351 | case 8: |
| 2352 | intrin_name = "llvm.ctlz.i8"; |
| 2353 | type = ctx->i8; |
| 2354 | highest_bit = LLVMConstInt(ctx->i8, 7, false); |
| 2355 | zero = ctx->i8_0; |
| 2356 | break; |
Samuel Pitoiset | 5a6c8ca | 2018-09-14 12:52:36 +0200 | [diff] [blame] | 2357 | default: |
| 2358 | unreachable(!"invalid bitsize"); |
| 2359 | break; |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2360 | } |
| 2361 | |
| 2362 | LLVMValueRef params[2] = { |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2363 | arg, |
Dave Airlie | a76b6c2 | 2017-10-26 15:20:15 +1000 | [diff] [blame] | 2364 | ctx->i1true, |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2365 | }; |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2366 | |
| 2367 | LLVMValueRef msb = ac_build_intrinsic(ctx, intrin_name, type, |
| 2368 | params, 2, |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2369 | AC_FUNC_ATTR_READNONE); |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2370 | |
| 2371 | /* The HW returns the last bit index from MSB, but TGSI/NIR wants |
| 2372 | * the index from LSB. Invert it by doing "31 - msb". */ |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2373 | msb = LLVMBuildSub(ctx->builder, highest_bit, msb, ""); |
Samuel Pitoiset | 4d5fce2 | 2019-03-26 11:34:46 +0100 | [diff] [blame] | 2374 | |
| 2375 | if (bitsize == 64) { |
| 2376 | msb = LLVMBuildTrunc(ctx->builder, msb, ctx->i32, ""); |
Samuel Pitoiset | 2cecf6c | 2019-04-01 16:18:09 +0200 | [diff] [blame] | 2377 | } else if (bitsize < 32) { |
Samuel Pitoiset | 4d5fce2 | 2019-03-26 11:34:46 +0100 | [diff] [blame] | 2378 | msb = LLVMBuildSExt(ctx->builder, msb, ctx->i32, ""); |
| 2379 | } |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2380 | |
| 2381 | /* check for zero */ |
| 2382 | return LLVMBuildSelect(ctx->builder, |
Daniel Schürmann | d19f20e | 2018-02-28 20:26:03 +0100 | [diff] [blame] | 2383 | LLVMBuildICmp(ctx->builder, LLVMIntEQ, arg, zero, ""), |
Dave Airlie | 0ec66b9 | 2017-02-16 03:53:27 +0000 | [diff] [blame] | 2384 | LLVMConstInt(ctx->i32, -1, true), msb, ""); |
| 2385 | } |
Marek Olšák | 660b55e | 2017-02-16 22:41:16 +0100 | [diff] [blame] | 2386 | |
Marek Olšák | a140aeb | 2018-01-02 03:59:43 +0100 | [diff] [blame] | 2387 | LLVMValueRef ac_build_fmin(struct ac_llvm_context *ctx, LLVMValueRef a, |
| 2388 | LLVMValueRef b) |
| 2389 | { |
Rhys Perry | bbbfdef | 2018-12-06 14:23:31 +0000 | [diff] [blame] | 2390 | char name[64]; |
| 2391 | 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] | 2392 | LLVMValueRef args[2] = {a, b}; |
Rhys Perry | bbbfdef | 2018-12-06 14:23:31 +0000 | [diff] [blame] | 2393 | return ac_build_intrinsic(ctx, name, LLVMTypeOf(a), args, 2, |
Marek Olšák | a140aeb | 2018-01-02 03:59:43 +0100 | [diff] [blame] | 2394 | AC_FUNC_ATTR_READNONE); |
| 2395 | } |
| 2396 | |
| 2397 | LLVMValueRef ac_build_fmax(struct ac_llvm_context *ctx, LLVMValueRef a, |
| 2398 | LLVMValueRef b) |
| 2399 | { |
Rhys Perry | bbbfdef | 2018-12-06 14:23:31 +0000 | [diff] [blame] | 2400 | char name[64]; |
| 2401 | 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] | 2402 | LLVMValueRef args[2] = {a, b}; |
Rhys Perry | bbbfdef | 2018-12-06 14:23:31 +0000 | [diff] [blame] | 2403 | return ac_build_intrinsic(ctx, name, LLVMTypeOf(a), args, 2, |
Marek Olšák | a140aeb | 2018-01-02 03:59:43 +0100 | [diff] [blame] | 2404 | AC_FUNC_ATTR_READNONE); |
| 2405 | } |
| 2406 | |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2407 | LLVMValueRef ac_build_imin(struct ac_llvm_context *ctx, LLVMValueRef a, |
| 2408 | LLVMValueRef b) |
| 2409 | { |
| 2410 | LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntSLE, a, b, ""); |
| 2411 | return LLVMBuildSelect(ctx->builder, cmp, a, b, ""); |
| 2412 | } |
| 2413 | |
| 2414 | LLVMValueRef ac_build_imax(struct ac_llvm_context *ctx, LLVMValueRef a, |
| 2415 | LLVMValueRef b) |
| 2416 | { |
| 2417 | LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGT, a, b, ""); |
| 2418 | return LLVMBuildSelect(ctx->builder, cmp, a, b, ""); |
| 2419 | } |
| 2420 | |
Nicolai Hähnle | a69afb6 | 2017-06-25 17:56:37 +0200 | [diff] [blame] | 2421 | LLVMValueRef ac_build_umin(struct ac_llvm_context *ctx, LLVMValueRef a, |
| 2422 | LLVMValueRef b) |
| 2423 | { |
| 2424 | LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntULE, a, b, ""); |
| 2425 | return LLVMBuildSelect(ctx->builder, cmp, a, b, ""); |
| 2426 | } |
| 2427 | |
Samuel Pitoiset | 4cb13e9 | 2019-04-10 17:16:49 +0200 | [diff] [blame] | 2428 | LLVMValueRef ac_build_umax(struct ac_llvm_context *ctx, LLVMValueRef a, |
| 2429 | LLVMValueRef b) |
| 2430 | { |
| 2431 | LLVMValueRef cmp = LLVMBuildICmp(ctx->builder, LLVMIntUGE, a, b, ""); |
| 2432 | return LLVMBuildSelect(ctx->builder, cmp, a, b, ""); |
| 2433 | } |
| 2434 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2435 | LLVMValueRef ac_build_clamp(struct ac_llvm_context *ctx, LLVMValueRef value) |
Marek Olšák | 660b55e | 2017-02-16 22:41:16 +0100 | [diff] [blame] | 2436 | { |
Rhys Perry | bbbfdef | 2018-12-06 14:23:31 +0000 | [diff] [blame] | 2437 | LLVMTypeRef t = LLVMTypeOf(value); |
| 2438 | return ac_build_fmin(ctx, ac_build_fmax(ctx, value, LLVMConstReal(t, 0.0)), |
| 2439 | LLVMConstReal(t, 1.0)); |
Marek Olšák | 660b55e | 2017-02-16 22:41:16 +0100 | [diff] [blame] | 2440 | } |
Marek Olšák | 369f4a8 | 2017-02-23 02:06:40 +0100 | [diff] [blame] | 2441 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2442 | 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] | 2443 | { |
| 2444 | LLVMValueRef args[9]; |
| 2445 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2446 | args[0] = LLVMConstInt(ctx->i32, a->target, 0); |
| 2447 | args[1] = LLVMConstInt(ctx->i32, a->enabled_channels, 0); |
Marek Olšák | 2b3ebe3 | 2017-02-23 02:15:54 +0100 | [diff] [blame] | 2448 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2449 | if (a->compr) { |
| 2450 | LLVMTypeRef i16 = LLVMInt16TypeInContext(ctx->context); |
| 2451 | LLVMTypeRef v2i16 = LLVMVectorType(i16, 2); |
Marek Olšák | 2b3ebe3 | 2017-02-23 02:15:54 +0100 | [diff] [blame] | 2452 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2453 | args[2] = LLVMBuildBitCast(ctx->builder, a->out[0], |
| 2454 | v2i16, ""); |
| 2455 | args[3] = LLVMBuildBitCast(ctx->builder, a->out[1], |
| 2456 | v2i16, ""); |
| 2457 | args[4] = LLVMConstInt(ctx->i1, a->done, 0); |
| 2458 | args[5] = LLVMConstInt(ctx->i1, a->valid_mask, 0); |
Marek Olšák | 2b3ebe3 | 2017-02-23 02:15:54 +0100 | [diff] [blame] | 2459 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2460 | ac_build_intrinsic(ctx, "llvm.amdgcn.exp.compr.v2i16", |
| 2461 | ctx->voidt, args, 6, 0); |
| 2462 | } else { |
| 2463 | args[2] = a->out[0]; |
| 2464 | args[3] = a->out[1]; |
| 2465 | args[4] = a->out[2]; |
| 2466 | args[5] = a->out[3]; |
| 2467 | args[6] = LLVMConstInt(ctx->i1, a->done, 0); |
| 2468 | args[7] = LLVMConstInt(ctx->i1, a->valid_mask, 0); |
Marek Olšák | 2b3ebe3 | 2017-02-23 02:15:54 +0100 | [diff] [blame] | 2469 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2470 | ac_build_intrinsic(ctx, "llvm.amdgcn.exp.f32", |
| 2471 | ctx->voidt, args, 8, 0); |
Marek Olšák | 2b3ebe3 | 2017-02-23 02:15:54 +0100 | [diff] [blame] | 2472 | } |
Marek Olšák | 369f4a8 | 2017-02-23 02:06:40 +0100 | [diff] [blame] | 2473 | } |
Marek Olšák | ad18d7f | 2017-02-23 23:00:19 +0100 | [diff] [blame] | 2474 | |
Samuel Pitoiset | bd9f7b7 | 2018-02-07 19:09:12 +0100 | [diff] [blame] | 2475 | void ac_build_export_null(struct ac_llvm_context *ctx) |
| 2476 | { |
| 2477 | struct ac_export_args args; |
| 2478 | |
| 2479 | args.enabled_channels = 0x0; /* enabled channels */ |
| 2480 | args.valid_mask = 1; /* whether the EXEC mask is valid */ |
| 2481 | args.done = 1; /* DONE bit */ |
| 2482 | args.target = V_008DFC_SQ_EXP_NULL; |
| 2483 | args.compr = 0; /* COMPR flag (0 = 32-bit export) */ |
| 2484 | args.out[0] = LLVMGetUndef(ctx->f32); /* R */ |
| 2485 | args.out[1] = LLVMGetUndef(ctx->f32); /* G */ |
| 2486 | args.out[2] = LLVMGetUndef(ctx->f32); /* B */ |
| 2487 | args.out[3] = LLVMGetUndef(ctx->f32); /* A */ |
| 2488 | |
| 2489 | ac_build_export(ctx, &args); |
| 2490 | } |
| 2491 | |
Nicolai Hähnle | 625dcbb | 2018-03-23 11:20:24 +0100 | [diff] [blame] | 2492 | static unsigned ac_num_coords(enum ac_image_dim dim) |
| 2493 | { |
| 2494 | switch (dim) { |
| 2495 | case ac_image_1d: |
| 2496 | return 1; |
| 2497 | case ac_image_2d: |
| 2498 | case ac_image_1darray: |
| 2499 | return 2; |
| 2500 | case ac_image_3d: |
| 2501 | case ac_image_cube: |
| 2502 | case ac_image_2darray: |
| 2503 | case ac_image_2dmsaa: |
| 2504 | return 3; |
| 2505 | case ac_image_2darraymsaa: |
| 2506 | return 4; |
| 2507 | default: |
| 2508 | unreachable("ac_num_coords: bad dim"); |
| 2509 | } |
| 2510 | } |
| 2511 | |
| 2512 | static unsigned ac_num_derivs(enum ac_image_dim dim) |
| 2513 | { |
| 2514 | switch (dim) { |
| 2515 | case ac_image_1d: |
| 2516 | case ac_image_1darray: |
| 2517 | return 2; |
| 2518 | case ac_image_2d: |
| 2519 | case ac_image_2darray: |
| 2520 | case ac_image_cube: |
| 2521 | return 4; |
| 2522 | case ac_image_3d: |
| 2523 | return 6; |
| 2524 | case ac_image_2dmsaa: |
| 2525 | case ac_image_2darraymsaa: |
| 2526 | default: |
| 2527 | unreachable("derivatives not supported"); |
| 2528 | } |
| 2529 | } |
| 2530 | |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2531 | static const char *get_atomic_name(enum ac_atomic_op op) |
| 2532 | { |
| 2533 | switch (op) { |
| 2534 | case ac_atomic_swap: return "swap"; |
| 2535 | case ac_atomic_add: return "add"; |
| 2536 | case ac_atomic_sub: return "sub"; |
| 2537 | case ac_atomic_smin: return "smin"; |
| 2538 | case ac_atomic_umin: return "umin"; |
| 2539 | case ac_atomic_smax: return "smax"; |
| 2540 | case ac_atomic_umax: return "umax"; |
| 2541 | case ac_atomic_and: return "and"; |
| 2542 | case ac_atomic_or: return "or"; |
| 2543 | case ac_atomic_xor: return "xor"; |
| 2544 | } |
| 2545 | unreachable("bad atomic op"); |
| 2546 | } |
| 2547 | |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2548 | LLVMValueRef ac_build_image_opcode(struct ac_llvm_context *ctx, |
| 2549 | struct ac_image_args *a) |
| 2550 | { |
| 2551 | const char *overload[3] = { "", "", "" }; |
| 2552 | unsigned num_overloads = 0; |
| 2553 | LLVMValueRef args[18]; |
| 2554 | unsigned num_args = 0; |
Bas Nieuwenhuizen | 4fc2d5e | 2018-06-06 01:42:17 +0200 | [diff] [blame] | 2555 | enum ac_image_dim dim = a->dim; |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2556 | |
| 2557 | assert(!a->lod || a->lod == ctx->i32_0 || a->lod == ctx->f32_0 || |
| 2558 | !a->level_zero); |
| 2559 | assert((a->opcode != ac_image_get_resinfo && a->opcode != ac_image_load_mip && |
| 2560 | a->opcode != ac_image_store_mip) || |
| 2561 | a->lod); |
| 2562 | assert(a->opcode == ac_image_sample || a->opcode == ac_image_gather4 || |
| 2563 | (!a->compare && !a->offset)); |
| 2564 | assert((a->opcode == ac_image_sample || a->opcode == ac_image_gather4 || |
| 2565 | a->opcode == ac_image_get_lod) || |
| 2566 | !a->bias); |
| 2567 | assert((a->bias ? 1 : 0) + |
| 2568 | (a->lod ? 1 : 0) + |
| 2569 | (a->level_zero ? 1 : 0) + |
| 2570 | (a->derivs[0] ? 1 : 0) <= 1); |
| 2571 | |
Bas Nieuwenhuizen | 4fc2d5e | 2018-06-06 01:42:17 +0200 | [diff] [blame] | 2572 | if (a->opcode == ac_image_get_lod) { |
| 2573 | switch (dim) { |
| 2574 | case ac_image_1darray: |
| 2575 | dim = ac_image_1d; |
| 2576 | break; |
| 2577 | case ac_image_2darray: |
| 2578 | case ac_image_cube: |
| 2579 | dim = ac_image_2d; |
| 2580 | break; |
| 2581 | default: |
| 2582 | break; |
| 2583 | } |
| 2584 | } |
| 2585 | |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2586 | bool sample = a->opcode == ac_image_sample || |
| 2587 | a->opcode == ac_image_gather4 || |
| 2588 | a->opcode == ac_image_get_lod; |
| 2589 | bool atomic = a->opcode == ac_image_atomic || |
| 2590 | a->opcode == ac_image_atomic_cmpswap; |
| 2591 | LLVMTypeRef coord_type = sample ? ctx->f32 : ctx->i32; |
| 2592 | |
| 2593 | if (atomic || a->opcode == ac_image_store || a->opcode == ac_image_store_mip) { |
| 2594 | args[num_args++] = a->data[0]; |
| 2595 | if (a->opcode == ac_image_atomic_cmpswap) |
| 2596 | args[num_args++] = a->data[1]; |
| 2597 | } |
| 2598 | |
| 2599 | if (!atomic) |
| 2600 | args[num_args++] = LLVMConstInt(ctx->i32, a->dmask, false); |
| 2601 | |
| 2602 | if (a->offset) |
| 2603 | args[num_args++] = ac_to_integer(ctx, a->offset); |
| 2604 | if (a->bias) { |
| 2605 | args[num_args++] = ac_to_float(ctx, a->bias); |
| 2606 | overload[num_overloads++] = ".f32"; |
| 2607 | } |
| 2608 | if (a->compare) |
| 2609 | args[num_args++] = ac_to_float(ctx, a->compare); |
| 2610 | if (a->derivs[0]) { |
Bas Nieuwenhuizen | 4fc2d5e | 2018-06-06 01:42:17 +0200 | [diff] [blame] | 2611 | unsigned count = ac_num_derivs(dim); |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2612 | for (unsigned i = 0; i < count; ++i) |
| 2613 | args[num_args++] = ac_to_float(ctx, a->derivs[i]); |
| 2614 | overload[num_overloads++] = ".f32"; |
| 2615 | } |
| 2616 | unsigned num_coords = |
Bas Nieuwenhuizen | 4fc2d5e | 2018-06-06 01:42:17 +0200 | [diff] [blame] | 2617 | a->opcode != ac_image_get_resinfo ? ac_num_coords(dim) : 0; |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2618 | for (unsigned i = 0; i < num_coords; ++i) |
| 2619 | args[num_args++] = LLVMBuildBitCast(ctx->builder, a->coords[i], coord_type, ""); |
| 2620 | if (a->lod) |
| 2621 | args[num_args++] = LLVMBuildBitCast(ctx->builder, a->lod, coord_type, ""); |
| 2622 | overload[num_overloads++] = sample ? ".f32" : ".i32"; |
| 2623 | |
| 2624 | args[num_args++] = a->resource; |
| 2625 | if (sample) { |
| 2626 | args[num_args++] = a->sampler; |
| 2627 | args[num_args++] = LLVMConstInt(ctx->i1, a->unorm, false); |
| 2628 | } |
| 2629 | |
| 2630 | args[num_args++] = ctx->i32_0; /* texfailctrl */ |
| 2631 | args[num_args++] = LLVMConstInt(ctx->i32, a->cache_policy, false); |
| 2632 | |
| 2633 | const char *name; |
| 2634 | const char *atomic_subop = ""; |
| 2635 | switch (a->opcode) { |
| 2636 | case ac_image_sample: name = "sample"; break; |
| 2637 | case ac_image_gather4: name = "gather4"; break; |
| 2638 | case ac_image_load: name = "load"; break; |
| 2639 | case ac_image_load_mip: name = "load.mip"; break; |
| 2640 | case ac_image_store: name = "store"; break; |
| 2641 | case ac_image_store_mip: name = "store.mip"; break; |
| 2642 | case ac_image_atomic: |
| 2643 | name = "atomic."; |
| 2644 | atomic_subop = get_atomic_name(a->atomic); |
| 2645 | break; |
| 2646 | case ac_image_atomic_cmpswap: |
| 2647 | name = "atomic."; |
| 2648 | atomic_subop = "cmpswap"; |
| 2649 | break; |
| 2650 | case ac_image_get_lod: name = "getlod"; break; |
| 2651 | case ac_image_get_resinfo: name = "getresinfo"; break; |
| 2652 | default: unreachable("invalid image opcode"); |
| 2653 | } |
| 2654 | |
| 2655 | const char *dimname; |
Bas Nieuwenhuizen | 4fc2d5e | 2018-06-06 01:42:17 +0200 | [diff] [blame] | 2656 | switch (dim) { |
Nicolai Hähnle | a9a7993 | 2018-02-16 18:44:25 +0100 | [diff] [blame] | 2657 | case ac_image_1d: dimname = "1d"; break; |
| 2658 | case ac_image_2d: dimname = "2d"; break; |
| 2659 | case ac_image_3d: dimname = "3d"; break; |
| 2660 | case ac_image_cube: dimname = "cube"; break; |
| 2661 | case ac_image_1darray: dimname = "1darray"; break; |
| 2662 | case ac_image_2darray: dimname = "2darray"; break; |
| 2663 | case ac_image_2dmsaa: dimname = "2dmsaa"; break; |
| 2664 | case ac_image_2darraymsaa: dimname = "2darraymsaa"; break; |
| 2665 | default: unreachable("invalid dim"); |
| 2666 | } |
| 2667 | |
| 2668 | bool lod_suffix = |
| 2669 | a->lod && (a->opcode == ac_image_sample || a->opcode == ac_image_gather4); |
| 2670 | char intr_name[96]; |
| 2671 | snprintf(intr_name, sizeof(intr_name), |
| 2672 | "llvm.amdgcn.image.%s%s" /* base name */ |
| 2673 | "%s%s%s" /* sample/gather modifiers */ |
| 2674 | ".%s.%s%s%s%s", /* dimension and type overloads */ |
| 2675 | name, atomic_subop, |
| 2676 | a->compare ? ".c" : "", |
| 2677 | a->bias ? ".b" : |
| 2678 | lod_suffix ? ".l" : |
| 2679 | a->derivs[0] ? ".d" : |
| 2680 | a->level_zero ? ".lz" : "", |
| 2681 | a->offset ? ".o" : "", |
| 2682 | dimname, |
| 2683 | atomic ? "i32" : "v4f32", |
| 2684 | overload[0], overload[1], overload[2]); |
| 2685 | |
| 2686 | LLVMTypeRef retty; |
| 2687 | if (atomic) |
| 2688 | retty = ctx->i32; |
| 2689 | else if (a->opcode == ac_image_store || a->opcode == ac_image_store_mip) |
| 2690 | retty = ctx->voidt; |
| 2691 | else |
| 2692 | retty = ctx->v4f32; |
| 2693 | |
| 2694 | LLVMValueRef result = |
| 2695 | ac_build_intrinsic(ctx, intr_name, retty, args, num_args, |
| 2696 | a->attributes); |
| 2697 | if (!sample && retty == ctx->v4f32) { |
| 2698 | result = LLVMBuildBitCast(ctx->builder, result, |
| 2699 | ctx->v4i32, ""); |
| 2700 | } |
| 2701 | return result; |
| 2702 | } |
| 2703 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2704 | LLVMValueRef ac_build_cvt_pkrtz_f16(struct ac_llvm_context *ctx, |
| 2705 | LLVMValueRef args[2]) |
Marek Olšák | 653ac0b | 2017-02-24 16:38:25 +0100 | [diff] [blame] | 2706 | { |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2707 | LLVMTypeRef v2f16 = |
| 2708 | LLVMVectorType(LLVMHalfTypeInContext(ctx->context), 2); |
Daniel Schürmann | f582367 | 2018-02-03 14:37:26 +0100 | [diff] [blame] | 2709 | |
| 2710 | return ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pkrtz", v2f16, |
| 2711 | args, 2, AC_FUNC_ATTR_READNONE); |
Marek Olšák | 653ac0b | 2017-02-24 16:38:25 +0100 | [diff] [blame] | 2712 | } |
Marek Olšák | 9c09592 | 2017-02-24 22:44:18 +0100 | [diff] [blame] | 2713 | |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2714 | LLVMValueRef ac_build_cvt_pknorm_i16(struct ac_llvm_context *ctx, |
| 2715 | LLVMValueRef args[2]) |
| 2716 | { |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2717 | LLVMValueRef res = |
| 2718 | ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pknorm.i16", |
| 2719 | ctx->v2i16, args, 2, |
| 2720 | AC_FUNC_ATTR_READNONE); |
| 2721 | return LLVMBuildBitCast(ctx->builder, res, ctx->i32, ""); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2722 | } |
| 2723 | |
| 2724 | LLVMValueRef ac_build_cvt_pknorm_u16(struct ac_llvm_context *ctx, |
| 2725 | LLVMValueRef args[2]) |
| 2726 | { |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2727 | LLVMValueRef res = |
| 2728 | ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pknorm.u16", |
| 2729 | ctx->v2i16, args, 2, |
| 2730 | AC_FUNC_ATTR_READNONE); |
| 2731 | return LLVMBuildBitCast(ctx->builder, res, ctx->i32, ""); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2732 | } |
| 2733 | |
| 2734 | /* The 8-bit and 10-bit clamping is for HW workarounds. */ |
| 2735 | LLVMValueRef ac_build_cvt_pk_i16(struct ac_llvm_context *ctx, |
| 2736 | LLVMValueRef args[2], unsigned bits, bool hi) |
| 2737 | { |
| 2738 | assert(bits == 8 || bits == 10 || bits == 16); |
| 2739 | |
| 2740 | LLVMValueRef max_rgb = LLVMConstInt(ctx->i32, |
| 2741 | bits == 8 ? 127 : bits == 10 ? 511 : 32767, 0); |
| 2742 | LLVMValueRef min_rgb = LLVMConstInt(ctx->i32, |
| 2743 | bits == 8 ? -128 : bits == 10 ? -512 : -32768, 0); |
| 2744 | LLVMValueRef max_alpha = |
| 2745 | bits != 10 ? max_rgb : ctx->i32_1; |
| 2746 | LLVMValueRef min_alpha = |
| 2747 | bits != 10 ? min_rgb : LLVMConstInt(ctx->i32, -2, 0); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2748 | |
| 2749 | /* Clamp. */ |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2750 | if (bits != 16) { |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2751 | for (int i = 0; i < 2; i++) { |
| 2752 | bool alpha = hi && i == 1; |
| 2753 | args[i] = ac_build_imin(ctx, args[i], |
| 2754 | alpha ? max_alpha : max_rgb); |
| 2755 | args[i] = ac_build_imax(ctx, args[i], |
| 2756 | alpha ? min_alpha : min_rgb); |
| 2757 | } |
| 2758 | } |
| 2759 | |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2760 | LLVMValueRef res = |
| 2761 | ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pk.i16", |
| 2762 | ctx->v2i16, args, 2, |
| 2763 | AC_FUNC_ATTR_READNONE); |
| 2764 | return LLVMBuildBitCast(ctx->builder, res, ctx->i32, ""); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2765 | } |
| 2766 | |
| 2767 | /* The 8-bit and 10-bit clamping is for HW workarounds. */ |
| 2768 | LLVMValueRef ac_build_cvt_pk_u16(struct ac_llvm_context *ctx, |
| 2769 | LLVMValueRef args[2], unsigned bits, bool hi) |
| 2770 | { |
| 2771 | assert(bits == 8 || bits == 10 || bits == 16); |
| 2772 | |
| 2773 | LLVMValueRef max_rgb = LLVMConstInt(ctx->i32, |
| 2774 | bits == 8 ? 255 : bits == 10 ? 1023 : 65535, 0); |
| 2775 | LLVMValueRef max_alpha = |
| 2776 | bits != 10 ? max_rgb : LLVMConstInt(ctx->i32, 3, 0); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2777 | |
| 2778 | /* Clamp. */ |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2779 | if (bits != 16) { |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2780 | for (int i = 0; i < 2; i++) { |
| 2781 | bool alpha = hi && i == 1; |
| 2782 | args[i] = ac_build_umin(ctx, args[i], |
| 2783 | alpha ? max_alpha : max_rgb); |
| 2784 | } |
| 2785 | } |
| 2786 | |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2787 | LLVMValueRef res = |
| 2788 | ac_build_intrinsic(ctx, "llvm.amdgcn.cvt.pk.u16", |
| 2789 | ctx->v2i16, args, 2, |
| 2790 | AC_FUNC_ATTR_READNONE); |
| 2791 | return LLVMBuildBitCast(ctx->builder, res, ctx->i32, ""); |
Marek Olšák | 847d0a3 | 2018-01-02 04:34:53 +0100 | [diff] [blame] | 2792 | } |
| 2793 | |
Marek Olšák | 2a414c3 | 2017-10-04 05:07:50 +0200 | [diff] [blame] | 2794 | LLVMValueRef ac_build_wqm_vote(struct ac_llvm_context *ctx, LLVMValueRef i1) |
| 2795 | { |
Marek Olšák | 2a414c3 | 2017-10-04 05:07:50 +0200 | [diff] [blame] | 2796 | return ac_build_intrinsic(ctx, "llvm.amdgcn.wqm.vote", ctx->i1, |
| 2797 | &i1, 1, AC_FUNC_ATTR_READNONE); |
| 2798 | } |
| 2799 | |
Marek Olšák | 1ff9e27 | 2017-10-04 04:51:39 +0200 | [diff] [blame] | 2800 | 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] | 2801 | { |
Marek Olšák | fd1121e | 2018-07-01 15:50:51 -0400 | [diff] [blame] | 2802 | ac_build_intrinsic(ctx, "llvm.amdgcn.kill", ctx->voidt, |
| 2803 | &i1, 1, 0); |
Marek Olšák | 9c09592 | 2017-02-24 22:44:18 +0100 | [diff] [blame] | 2804 | } |
Marek Olšák | d4324dd | 2017-02-24 23:06:31 +0100 | [diff] [blame] | 2805 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2806 | LLVMValueRef ac_build_bfe(struct ac_llvm_context *ctx, LLVMValueRef input, |
| 2807 | LLVMValueRef offset, LLVMValueRef width, |
| 2808 | bool is_signed) |
Marek Olšák | d4324dd | 2017-02-24 23:06:31 +0100 | [diff] [blame] | 2809 | { |
| 2810 | LLVMValueRef args[] = { |
| 2811 | input, |
| 2812 | offset, |
| 2813 | width, |
| 2814 | }; |
| 2815 | |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2816 | return ac_build_intrinsic(ctx, |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2817 | is_signed ? "llvm.amdgcn.sbfe.i32" : |
| 2818 | "llvm.amdgcn.ubfe.i32", |
Marek Olšák | 7f1446a | 2017-02-26 00:41:37 +0100 | [diff] [blame] | 2819 | ctx->i32, args, 3, |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 2820 | AC_FUNC_ATTR_READNONE); |
Marek Olšák | d4324dd | 2017-02-24 23:06:31 +0100 | [diff] [blame] | 2821 | } |
Dave Airlie | 10ae83a | 2017-03-06 08:37:22 +1000 | [diff] [blame] | 2822 | |
Marek Olšák | 659f2e0 | 2018-08-14 01:49:49 -0400 | [diff] [blame] | 2823 | LLVMValueRef ac_build_imad(struct ac_llvm_context *ctx, LLVMValueRef s0, |
| 2824 | LLVMValueRef s1, LLVMValueRef s2) |
| 2825 | { |
| 2826 | return LLVMBuildAdd(ctx->builder, |
| 2827 | LLVMBuildMul(ctx->builder, s0, s1, ""), s2, ""); |
| 2828 | } |
| 2829 | |
| 2830 | LLVMValueRef ac_build_fmad(struct ac_llvm_context *ctx, LLVMValueRef s0, |
| 2831 | LLVMValueRef s1, LLVMValueRef s2) |
| 2832 | { |
| 2833 | return LLVMBuildFAdd(ctx->builder, |
| 2834 | LLVMBuildFMul(ctx->builder, s0, s1, ""), s2, ""); |
| 2835 | } |
| 2836 | |
Samuel Pitoiset | 225b198 | 2017-12-12 18:10:23 +0100 | [diff] [blame] | 2837 | void ac_build_waitcnt(struct ac_llvm_context *ctx, unsigned simm16) |
| 2838 | { |
| 2839 | LLVMValueRef args[1] = { |
| 2840 | LLVMConstInt(ctx->i32, simm16, false), |
| 2841 | }; |
| 2842 | ac_build_intrinsic(ctx, "llvm.amdgcn.s.waitcnt", |
| 2843 | ctx->voidt, args, 1, 0); |
| 2844 | } |
| 2845 | |
Samuel Pitoiset | d6a0773 | 2019-03-25 13:37:46 +0100 | [diff] [blame] | 2846 | LLVMValueRef ac_build_fmed3(struct ac_llvm_context *ctx, LLVMValueRef src0, |
| 2847 | LLVMValueRef src1, LLVMValueRef src2, |
| 2848 | unsigned bitsize) |
| 2849 | { |
| 2850 | LLVMTypeRef type; |
| 2851 | char *intr; |
| 2852 | |
| 2853 | if (bitsize == 16) { |
| 2854 | intr = "llvm.amdgcn.fmed3.f16"; |
| 2855 | type = ctx->f16; |
| 2856 | } else if (bitsize == 32) { |
| 2857 | intr = "llvm.amdgcn.fmed3.f32"; |
| 2858 | type = ctx->f32; |
| 2859 | } else { |
| 2860 | intr = "llvm.amdgcn.fmed3.f64"; |
| 2861 | type = ctx->f64; |
| 2862 | } |
| 2863 | |
| 2864 | LLVMValueRef params[] = { |
| 2865 | src0, |
| 2866 | src1, |
| 2867 | src2, |
| 2868 | }; |
| 2869 | return ac_build_intrinsic(ctx, intr, type, params, 3, |
| 2870 | AC_FUNC_ATTR_READNONE); |
| 2871 | } |
| 2872 | |
Samuel Pitoiset | 459e339 | 2018-03-02 15:01:30 +0100 | [diff] [blame] | 2873 | LLVMValueRef ac_build_fract(struct ac_llvm_context *ctx, LLVMValueRef src0, |
| 2874 | unsigned bitsize) |
| 2875 | { |
| 2876 | LLVMTypeRef type; |
| 2877 | char *intr; |
| 2878 | |
Samuel Pitoiset | 2ac5c5c | 2019-03-21 09:19:06 +0100 | [diff] [blame] | 2879 | if (bitsize == 16) { |
| 2880 | intr = "llvm.amdgcn.fract.f16"; |
| 2881 | type = ctx->f16; |
| 2882 | } else if (bitsize == 32) { |
Samuel Pitoiset | f4f0e3a | 2019-03-19 23:40:32 +0100 | [diff] [blame] | 2883 | intr = "llvm.amdgcn.fract.f32"; |
Samuel Pitoiset | 459e339 | 2018-03-02 15:01:30 +0100 | [diff] [blame] | 2884 | type = ctx->f32; |
| 2885 | } else { |
Samuel Pitoiset | f4f0e3a | 2019-03-19 23:40:32 +0100 | [diff] [blame] | 2886 | intr = "llvm.amdgcn.fract.f64"; |
Samuel Pitoiset | 459e339 | 2018-03-02 15:01:30 +0100 | [diff] [blame] | 2887 | type = ctx->f64; |
| 2888 | } |
| 2889 | |
| 2890 | LLVMValueRef params[] = { |
| 2891 | src0, |
| 2892 | }; |
Samuel Pitoiset | f4f0e3a | 2019-03-19 23:40:32 +0100 | [diff] [blame] | 2893 | return ac_build_intrinsic(ctx, intr, type, params, 1, |
| 2894 | AC_FUNC_ATTR_READNONE); |
Samuel Pitoiset | 459e339 | 2018-03-02 15:01:30 +0100 | [diff] [blame] | 2895 | } |
| 2896 | |
Samuel Pitoiset | e8bdde2 | 2018-03-02 15:01:31 +0100 | [diff] [blame] | 2897 | LLVMValueRef ac_build_isign(struct ac_llvm_context *ctx, LLVMValueRef src0, |
| 2898 | unsigned bitsize) |
| 2899 | { |
Rhys Perry | 6790b3a | 2018-12-06 14:27:01 +0000 | [diff] [blame] | 2900 | LLVMTypeRef type = LLVMIntTypeInContext(ctx->context, bitsize); |
| 2901 | LLVMValueRef zero = LLVMConstInt(type, 0, false); |
| 2902 | LLVMValueRef one = LLVMConstInt(type, 1, false); |
Samuel Pitoiset | e8bdde2 | 2018-03-02 15:01:31 +0100 | [diff] [blame] | 2903 | |
Rhys Perry | 6790b3a | 2018-12-06 14:27:01 +0000 | [diff] [blame] | 2904 | LLVMValueRef cmp, val; |
Samuel Pitoiset | e8bdde2 | 2018-03-02 15:01:31 +0100 | [diff] [blame] | 2905 | cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGT, src0, zero, ""); |
| 2906 | val = LLVMBuildSelect(ctx->builder, cmp, one, src0, ""); |
| 2907 | cmp = LLVMBuildICmp(ctx->builder, LLVMIntSGE, val, zero, ""); |
| 2908 | val = LLVMBuildSelect(ctx->builder, cmp, val, LLVMConstInt(type, -1, true), ""); |
| 2909 | return val; |
| 2910 | } |
| 2911 | |
Samuel Pitoiset | 322a51b | 2018-03-02 15:01:32 +0100 | [diff] [blame] | 2912 | LLVMValueRef ac_build_fsign(struct ac_llvm_context *ctx, LLVMValueRef src0, |
| 2913 | unsigned bitsize) |
| 2914 | { |
| 2915 | LLVMValueRef cmp, val, zero, one; |
| 2916 | LLVMTypeRef type; |
| 2917 | |
Samuel Pitoiset | 0eb1478 | 2019-03-21 10:14:30 +0100 | [diff] [blame] | 2918 | if (bitsize == 16) { |
| 2919 | type = ctx->f16; |
| 2920 | zero = ctx->f16_0; |
| 2921 | one = ctx->f16_1; |
| 2922 | } else if (bitsize == 32) { |
Samuel Pitoiset | 322a51b | 2018-03-02 15:01:32 +0100 | [diff] [blame] | 2923 | type = ctx->f32; |
| 2924 | zero = ctx->f32_0; |
| 2925 | one = ctx->f32_1; |
| 2926 | } else { |
| 2927 | type = ctx->f64; |
| 2928 | zero = ctx->f64_0; |
| 2929 | one = ctx->f64_1; |
| 2930 | } |
| 2931 | |
| 2932 | cmp = LLVMBuildFCmp(ctx->builder, LLVMRealOGT, src0, zero, ""); |
| 2933 | val = LLVMBuildSelect(ctx->builder, cmp, one, src0, ""); |
| 2934 | cmp = LLVMBuildFCmp(ctx->builder, LLVMRealOGE, val, zero, ""); |
| 2935 | val = LLVMBuildSelect(ctx->builder, cmp, val, LLVMConstReal(type, -1.0), ""); |
| 2936 | return val; |
| 2937 | } |
| 2938 | |
Samuel Pitoiset | 371c35e | 2018-09-14 12:52:32 +0200 | [diff] [blame] | 2939 | LLVMValueRef ac_build_bit_count(struct ac_llvm_context *ctx, LLVMValueRef src0) |
| 2940 | { |
| 2941 | LLVMValueRef result; |
| 2942 | unsigned bitsize; |
| 2943 | |
| 2944 | bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(src0)); |
| 2945 | |
| 2946 | switch (bitsize) { |
| 2947 | case 64: |
| 2948 | result = ac_build_intrinsic(ctx, "llvm.ctpop.i64", ctx->i64, |
| 2949 | (LLVMValueRef []) { src0 }, 1, |
| 2950 | AC_FUNC_ATTR_READNONE); |
| 2951 | |
| 2952 | result = LLVMBuildTrunc(ctx->builder, result, ctx->i32, ""); |
| 2953 | break; |
| 2954 | case 32: |
| 2955 | result = ac_build_intrinsic(ctx, "llvm.ctpop.i32", ctx->i32, |
| 2956 | (LLVMValueRef []) { src0 }, 1, |
| 2957 | AC_FUNC_ATTR_READNONE); |
| 2958 | break; |
Samuel Pitoiset | fc398f4 | 2018-09-14 12:52:38 +0200 | [diff] [blame] | 2959 | case 16: |
| 2960 | result = ac_build_intrinsic(ctx, "llvm.ctpop.i16", ctx->i16, |
| 2961 | (LLVMValueRef []) { src0 }, 1, |
| 2962 | AC_FUNC_ATTR_READNONE); |
Samuel Pitoiset | 9d13b9e | 2019-03-26 11:34:43 +0100 | [diff] [blame] | 2963 | |
| 2964 | result = LLVMBuildZExt(ctx->builder, result, ctx->i32, ""); |
Samuel Pitoiset | fc398f4 | 2018-09-14 12:52:38 +0200 | [diff] [blame] | 2965 | break; |
Samuel Pitoiset | 89cf8ca | 2019-04-01 16:18:07 +0200 | [diff] [blame] | 2966 | case 8: |
| 2967 | result = ac_build_intrinsic(ctx, "llvm.ctpop.i8", ctx->i8, |
| 2968 | (LLVMValueRef []) { src0 }, 1, |
| 2969 | AC_FUNC_ATTR_READNONE); |
| 2970 | |
| 2971 | result = LLVMBuildZExt(ctx->builder, result, ctx->i32, ""); |
| 2972 | break; |
Samuel Pitoiset | 371c35e | 2018-09-14 12:52:32 +0200 | [diff] [blame] | 2973 | default: |
| 2974 | unreachable(!"invalid bitsize"); |
| 2975 | break; |
| 2976 | } |
| 2977 | |
| 2978 | return result; |
| 2979 | } |
| 2980 | |
Samuel Pitoiset | 074e291 | 2018-09-14 12:52:33 +0200 | [diff] [blame] | 2981 | LLVMValueRef ac_build_bitfield_reverse(struct ac_llvm_context *ctx, |
| 2982 | LLVMValueRef src0) |
| 2983 | { |
| 2984 | LLVMValueRef result; |
| 2985 | unsigned bitsize; |
| 2986 | |
| 2987 | bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(src0)); |
| 2988 | |
| 2989 | switch (bitsize) { |
Samuel Pitoiset | d099bc5 | 2019-04-01 16:18:10 +0200 | [diff] [blame] | 2990 | case 64: |
| 2991 | result = ac_build_intrinsic(ctx, "llvm.bitreverse.i64", ctx->i64, |
| 2992 | (LLVMValueRef []) { src0 }, 1, |
| 2993 | AC_FUNC_ATTR_READNONE); |
| 2994 | |
| 2995 | result = LLVMBuildTrunc(ctx->builder, result, ctx->i32, ""); |
| 2996 | break; |
Samuel Pitoiset | 074e291 | 2018-09-14 12:52:33 +0200 | [diff] [blame] | 2997 | case 32: |
| 2998 | result = ac_build_intrinsic(ctx, "llvm.bitreverse.i32", ctx->i32, |
| 2999 | (LLVMValueRef []) { src0 }, 1, |
| 3000 | AC_FUNC_ATTR_READNONE); |
| 3001 | break; |
Samuel Pitoiset | cd76ce0 | 2018-09-14 12:52:39 +0200 | [diff] [blame] | 3002 | case 16: |
| 3003 | result = ac_build_intrinsic(ctx, "llvm.bitreverse.i16", ctx->i16, |
| 3004 | (LLVMValueRef []) { src0 }, 1, |
| 3005 | AC_FUNC_ATTR_READNONE); |
Samuel Pitoiset | b16dfff | 2019-03-26 11:34:44 +0100 | [diff] [blame] | 3006 | |
| 3007 | result = LLVMBuildZExt(ctx->builder, result, ctx->i32, ""); |
Samuel Pitoiset | cd76ce0 | 2018-09-14 12:52:39 +0200 | [diff] [blame] | 3008 | break; |
Samuel Pitoiset | d099bc5 | 2019-04-01 16:18:10 +0200 | [diff] [blame] | 3009 | case 8: |
| 3010 | result = ac_build_intrinsic(ctx, "llvm.bitreverse.i8", ctx->i8, |
| 3011 | (LLVMValueRef []) { src0 }, 1, |
| 3012 | AC_FUNC_ATTR_READNONE); |
| 3013 | |
| 3014 | result = LLVMBuildZExt(ctx->builder, result, ctx->i32, ""); |
| 3015 | break; |
Samuel Pitoiset | 074e291 | 2018-09-14 12:52:33 +0200 | [diff] [blame] | 3016 | default: |
| 3017 | unreachable(!"invalid bitsize"); |
| 3018 | break; |
| 3019 | } |
| 3020 | |
| 3021 | return result; |
| 3022 | } |
| 3023 | |
Marek Olšák | f9eb1ef | 2018-05-16 22:23:41 -0400 | [diff] [blame] | 3024 | #define AC_EXP_TARGET 0 |
| 3025 | #define AC_EXP_ENABLED_CHANNELS 1 |
| 3026 | #define AC_EXP_OUT0 2 |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3027 | |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3028 | enum ac_ir_type { |
| 3029 | AC_IR_UNDEF, |
| 3030 | AC_IR_CONST, |
| 3031 | AC_IR_VALUE, |
| 3032 | }; |
| 3033 | |
| 3034 | struct ac_vs_exp_chan |
| 3035 | { |
| 3036 | LLVMValueRef value; |
| 3037 | float const_float; |
| 3038 | enum ac_ir_type type; |
| 3039 | }; |
| 3040 | |
| 3041 | struct ac_vs_exp_inst { |
| 3042 | unsigned offset; |
| 3043 | LLVMValueRef inst; |
| 3044 | struct ac_vs_exp_chan chan[4]; |
| 3045 | }; |
| 3046 | |
| 3047 | struct ac_vs_exports { |
| 3048 | unsigned num; |
| 3049 | struct ac_vs_exp_inst exp[VARYING_SLOT_MAX]; |
| 3050 | }; |
| 3051 | |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3052 | /* Return true if the PARAM export has been eliminated. */ |
| 3053 | static bool ac_eliminate_const_output(uint8_t *vs_output_param_offset, |
| 3054 | uint32_t num_outputs, |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3055 | struct ac_vs_exp_inst *exp) |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3056 | { |
| 3057 | unsigned i, default_val; /* SPI_PS_INPUT_CNTL_i.DEFAULT_VAL */ |
| 3058 | bool is_zero[4] = {}, is_one[4] = {}; |
| 3059 | |
| 3060 | for (i = 0; i < 4; i++) { |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3061 | /* It's a constant expression. Undef outputs are eliminated too. */ |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3062 | if (exp->chan[i].type == AC_IR_UNDEF) { |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3063 | is_zero[i] = true; |
| 3064 | is_one[i] = true; |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3065 | } else if (exp->chan[i].type == AC_IR_CONST) { |
| 3066 | if (exp->chan[i].const_float == 0) |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3067 | is_zero[i] = true; |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3068 | else if (exp->chan[i].const_float == 1) |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3069 | is_one[i] = true; |
| 3070 | else |
| 3071 | return false; /* other constant */ |
| 3072 | } else |
| 3073 | return false; |
| 3074 | } |
| 3075 | |
| 3076 | /* Only certain combinations of 0 and 1 can be eliminated. */ |
| 3077 | if (is_zero[0] && is_zero[1] && is_zero[2]) |
| 3078 | default_val = is_zero[3] ? 0 : 1; |
| 3079 | else if (is_one[0] && is_one[1] && is_one[2]) |
| 3080 | default_val = is_zero[3] ? 2 : 3; |
| 3081 | else |
| 3082 | return false; |
| 3083 | |
| 3084 | /* The PARAM export can be represented as DEFAULT_VAL. Kill it. */ |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3085 | LLVMInstructionEraseFromParent(exp->inst); |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3086 | |
| 3087 | /* Change OFFSET to DEFAULT_VAL. */ |
| 3088 | for (i = 0; i < num_outputs; i++) { |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3089 | if (vs_output_param_offset[i] == exp->offset) { |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3090 | vs_output_param_offset[i] = |
| 3091 | AC_EXP_PARAM_DEFAULT_VAL_0000 + default_val; |
| 3092 | break; |
| 3093 | } |
| 3094 | } |
| 3095 | return true; |
| 3096 | } |
| 3097 | |
Samuel Pitoiset | 675dde1 | 2018-03-01 11:54:21 +0100 | [diff] [blame] | 3098 | static bool ac_eliminate_duplicated_output(struct ac_llvm_context *ctx, |
| 3099 | uint8_t *vs_output_param_offset, |
Marek Olšák | b087154 | 2017-04-29 23:56:03 +0200 | [diff] [blame] | 3100 | uint32_t num_outputs, |
| 3101 | struct ac_vs_exports *processed, |
| 3102 | struct ac_vs_exp_inst *exp) |
| 3103 | { |
| 3104 | unsigned p, copy_back_channels = 0; |
| 3105 | |
| 3106 | /* See if the output is already in the list of processed outputs. |
| 3107 | * The LLVMValueRef comparison relies on SSA. |
| 3108 | */ |
| 3109 | for (p = 0; p < processed->num; p++) { |
| 3110 | bool different = false; |
| 3111 | |
| 3112 | for (unsigned j = 0; j < 4; j++) { |
| 3113 | struct ac_vs_exp_chan *c1 = &processed->exp[p].chan[j]; |
| 3114 | struct ac_vs_exp_chan *c2 = &exp->chan[j]; |
| 3115 | |
| 3116 | /* Treat undef as a match. */ |
| 3117 | if (c2->type == AC_IR_UNDEF) |
| 3118 | continue; |
| 3119 | |
| 3120 | /* If c1 is undef but c2 isn't, we can copy c2 to c1 |
| 3121 | * and consider the instruction duplicated. |
| 3122 | */ |
| 3123 | if (c1->type == AC_IR_UNDEF) { |
| 3124 | copy_back_channels |= 1 << j; |
| 3125 | continue; |
| 3126 | } |
| 3127 | |
| 3128 | /* Test whether the channels are not equal. */ |
| 3129 | if (c1->type != c2->type || |
| 3130 | (c1->type == AC_IR_CONST && |
| 3131 | c1->const_float != c2->const_float) || |
| 3132 | (c1->type == AC_IR_VALUE && |
| 3133 | c1->value != c2->value)) { |
| 3134 | different = true; |
| 3135 | break; |
| 3136 | } |
| 3137 | } |
| 3138 | if (!different) |
| 3139 | break; |
| 3140 | |
| 3141 | copy_back_channels = 0; |
| 3142 | } |
| 3143 | if (p == processed->num) |
| 3144 | return false; |
| 3145 | |
| 3146 | /* If a match was found, but the matching export has undef where the new |
| 3147 | * one has a normal value, copy the normal value to the undef channel. |
| 3148 | */ |
| 3149 | struct ac_vs_exp_inst *match = &processed->exp[p]; |
| 3150 | |
Samuel Pitoiset | 675dde1 | 2018-03-01 11:54:21 +0100 | [diff] [blame] | 3151 | /* Get current enabled channels mask. */ |
| 3152 | LLVMValueRef arg = LLVMGetOperand(match->inst, AC_EXP_ENABLED_CHANNELS); |
| 3153 | unsigned enabled_channels = LLVMConstIntGetZExtValue(arg); |
| 3154 | |
Marek Olšák | b087154 | 2017-04-29 23:56:03 +0200 | [diff] [blame] | 3155 | while (copy_back_channels) { |
| 3156 | unsigned chan = u_bit_scan(©_back_channels); |
| 3157 | |
| 3158 | assert(match->chan[chan].type == AC_IR_UNDEF); |
| 3159 | LLVMSetOperand(match->inst, AC_EXP_OUT0 + chan, |
| 3160 | exp->chan[chan].value); |
| 3161 | match->chan[chan] = exp->chan[chan]; |
Samuel Pitoiset | 675dde1 | 2018-03-01 11:54:21 +0100 | [diff] [blame] | 3162 | |
| 3163 | /* Update number of enabled channels because the original mask |
| 3164 | * is not always 0xf. |
| 3165 | */ |
| 3166 | enabled_channels |= (1 << chan); |
| 3167 | LLVMSetOperand(match->inst, AC_EXP_ENABLED_CHANNELS, |
| 3168 | LLVMConstInt(ctx->i32, enabled_channels, 0)); |
Marek Olšák | b087154 | 2017-04-29 23:56:03 +0200 | [diff] [blame] | 3169 | } |
| 3170 | |
| 3171 | /* The PARAM export is duplicated. Kill it. */ |
| 3172 | LLVMInstructionEraseFromParent(exp->inst); |
| 3173 | |
| 3174 | /* Change OFFSET to the matching export. */ |
| 3175 | for (unsigned i = 0; i < num_outputs; i++) { |
| 3176 | if (vs_output_param_offset[i] == exp->offset) { |
| 3177 | vs_output_param_offset[i] = match->offset; |
| 3178 | break; |
| 3179 | } |
| 3180 | } |
| 3181 | return true; |
| 3182 | } |
| 3183 | |
Marek Olšák | 7647e90 | 2017-04-29 23:53:08 +0200 | [diff] [blame] | 3184 | void ac_optimize_vs_outputs(struct ac_llvm_context *ctx, |
| 3185 | LLVMValueRef main_fn, |
| 3186 | uint8_t *vs_output_param_offset, |
| 3187 | uint32_t num_outputs, |
| 3188 | uint8_t *num_param_exports) |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3189 | { |
| 3190 | LLVMBasicBlockRef bb; |
| 3191 | bool removed_any = false; |
| 3192 | struct ac_vs_exports exports; |
| 3193 | |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3194 | exports.num = 0; |
| 3195 | |
| 3196 | /* Process all LLVM instructions. */ |
| 3197 | bb = LLVMGetFirstBasicBlock(main_fn); |
| 3198 | while (bb) { |
| 3199 | LLVMValueRef inst = LLVMGetFirstInstruction(bb); |
| 3200 | |
| 3201 | while (inst) { |
| 3202 | LLVMValueRef cur = inst; |
| 3203 | inst = LLVMGetNextInstruction(inst); |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3204 | struct ac_vs_exp_inst exp; |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3205 | |
| 3206 | if (LLVMGetInstructionOpcode(cur) != LLVMCall) |
| 3207 | continue; |
| 3208 | |
| 3209 | LLVMValueRef callee = ac_llvm_get_called_value(cur); |
| 3210 | |
| 3211 | if (!ac_llvm_is_function(callee)) |
| 3212 | continue; |
| 3213 | |
| 3214 | const char *name = LLVMGetValueName(callee); |
| 3215 | unsigned num_args = LLVMCountParams(callee); |
| 3216 | |
| 3217 | /* Check if this is an export instruction. */ |
| 3218 | if ((num_args != 9 && num_args != 8) || |
| 3219 | (strcmp(name, "llvm.SI.export") && |
| 3220 | strcmp(name, "llvm.amdgcn.exp.f32"))) |
| 3221 | continue; |
| 3222 | |
| 3223 | LLVMValueRef arg = LLVMGetOperand(cur, AC_EXP_TARGET); |
| 3224 | unsigned target = LLVMConstIntGetZExtValue(arg); |
| 3225 | |
| 3226 | if (target < V_008DFC_SQ_EXP_PARAM) |
| 3227 | continue; |
| 3228 | |
| 3229 | target -= V_008DFC_SQ_EXP_PARAM; |
| 3230 | |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3231 | /* Parse the instruction. */ |
| 3232 | memset(&exp, 0, sizeof(exp)); |
| 3233 | exp.offset = target; |
| 3234 | exp.inst = cur; |
| 3235 | |
| 3236 | for (unsigned i = 0; i < 4; i++) { |
| 3237 | LLVMValueRef v = LLVMGetOperand(cur, AC_EXP_OUT0 + i); |
| 3238 | |
| 3239 | exp.chan[i].value = v; |
| 3240 | |
| 3241 | if (LLVMIsUndef(v)) { |
| 3242 | exp.chan[i].type = AC_IR_UNDEF; |
| 3243 | } else if (LLVMIsAConstantFP(v)) { |
| 3244 | LLVMBool loses_info; |
| 3245 | exp.chan[i].type = AC_IR_CONST; |
| 3246 | exp.chan[i].const_float = |
| 3247 | LLVMConstRealGetDouble(v, &loses_info); |
| 3248 | } else { |
| 3249 | exp.chan[i].type = AC_IR_VALUE; |
| 3250 | } |
| 3251 | } |
| 3252 | |
Marek Olšák | b087154 | 2017-04-29 23:56:03 +0200 | [diff] [blame] | 3253 | /* Eliminate constant and duplicated PARAM exports. */ |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3254 | if (ac_eliminate_const_output(vs_output_param_offset, |
Marek Olšák | b087154 | 2017-04-29 23:56:03 +0200 | [diff] [blame] | 3255 | num_outputs, &exp) || |
Samuel Pitoiset | 675dde1 | 2018-03-01 11:54:21 +0100 | [diff] [blame] | 3256 | ac_eliminate_duplicated_output(ctx, |
| 3257 | vs_output_param_offset, |
Marek Olšák | b087154 | 2017-04-29 23:56:03 +0200 | [diff] [blame] | 3258 | num_outputs, &exports, |
| 3259 | &exp)) { |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3260 | removed_any = true; |
| 3261 | } else { |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3262 | exports.exp[exports.num++] = exp; |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3263 | } |
| 3264 | } |
| 3265 | bb = LLVMGetNextBasicBlock(bb); |
| 3266 | } |
| 3267 | |
| 3268 | /* Remove holes in export memory due to removed PARAM exports. |
| 3269 | * This is done by renumbering all PARAM exports. |
| 3270 | */ |
| 3271 | if (removed_any) { |
Marek Olšák | 34bc470 | 2017-05-08 16:37:26 +0200 | [diff] [blame] | 3272 | uint8_t old_offset[VARYING_SLOT_MAX]; |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3273 | unsigned out, i; |
| 3274 | |
| 3275 | /* Make a copy of the offsets. We need the old version while |
| 3276 | * we are modifying some of them. */ |
Marek Olšák | 34bc470 | 2017-05-08 16:37:26 +0200 | [diff] [blame] | 3277 | memcpy(old_offset, vs_output_param_offset, |
| 3278 | sizeof(old_offset)); |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3279 | |
| 3280 | for (i = 0; i < exports.num; i++) { |
Marek Olšák | faa3747 | 2017-04-29 23:47:08 +0200 | [diff] [blame] | 3281 | unsigned offset = exports.exp[i].offset; |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3282 | |
Marek Olšák | 34bc470 | 2017-05-08 16:37:26 +0200 | [diff] [blame] | 3283 | /* Update vs_output_param_offset. Multiple outputs can |
| 3284 | * have the same offset. |
| 3285 | */ |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3286 | for (out = 0; out < num_outputs; out++) { |
Marek Olšák | 34bc470 | 2017-05-08 16:37:26 +0200 | [diff] [blame] | 3287 | if (old_offset[out] == offset) |
| 3288 | vs_output_param_offset[out] = i; |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3289 | } |
Marek Olšák | 34bc470 | 2017-05-08 16:37:26 +0200 | [diff] [blame] | 3290 | |
| 3291 | /* Change the PARAM offset in the instruction. */ |
| 3292 | LLVMSetOperand(exports.exp[i].inst, AC_EXP_TARGET, |
| 3293 | LLVMConstInt(ctx->i32, |
| 3294 | V_008DFC_SQ_EXP_PARAM + i, 0)); |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3295 | } |
Marek Olšák | 34bc470 | 2017-05-08 16:37:26 +0200 | [diff] [blame] | 3296 | *num_param_exports = exports.num; |
Dave Airlie | e265917 | 2017-04-25 23:33:29 +0100 | [diff] [blame] | 3297 | } |
| 3298 | } |
Dave Airlie | 1dda214 | 2017-10-19 05:29:02 +0100 | [diff] [blame] | 3299 | |
| 3300 | void ac_init_exec_full_mask(struct ac_llvm_context *ctx) |
| 3301 | { |
| 3302 | LLVMValueRef full_mask = LLVMConstInt(ctx->i64, ~0ull, 0); |
| 3303 | ac_build_intrinsic(ctx, |
| 3304 | "llvm.amdgcn.init.exec", ctx->voidt, |
| 3305 | &full_mask, 1, AC_FUNC_ATTR_CONVERGENT); |
| 3306 | } |
Dave Airlie | f925f5b | 2017-10-26 14:43:51 +1000 | [diff] [blame] | 3307 | |
| 3308 | void ac_declare_lds_as_pointer(struct ac_llvm_context *ctx) |
| 3309 | { |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 3310 | unsigned lds_size = ctx->chip_class >= GFX7 ? 65536 : 32768; |
Dave Airlie | f925f5b | 2017-10-26 14:43:51 +1000 | [diff] [blame] | 3311 | ctx->lds = LLVMBuildIntToPtr(ctx->builder, ctx->i32_0, |
Marek Olšák | a668c8d | 2018-09-07 18:44:54 -0400 | [diff] [blame] | 3312 | LLVMPointerType(LLVMArrayType(ctx->i32, lds_size / 4), AC_ADDR_SPACE_LDS), |
Dave Airlie | f925f5b | 2017-10-26 14:43:51 +1000 | [diff] [blame] | 3313 | "lds"); |
| 3314 | } |
| 3315 | |
| 3316 | LLVMValueRef ac_lds_load(struct ac_llvm_context *ctx, |
| 3317 | LLVMValueRef dw_addr) |
| 3318 | { |
Marek Olšák | 6b0b8f1 | 2019-05-09 20:58:21 -0400 | [diff] [blame] | 3319 | return LLVMBuildLoad(ctx->builder, ac_build_gep0(ctx, ctx->lds, dw_addr), ""); |
Dave Airlie | f925f5b | 2017-10-26 14:43:51 +1000 | [diff] [blame] | 3320 | } |
| 3321 | |
| 3322 | void ac_lds_store(struct ac_llvm_context *ctx, |
| 3323 | LLVMValueRef dw_addr, |
| 3324 | LLVMValueRef value) |
| 3325 | { |
| 3326 | value = ac_to_integer(ctx, value); |
| 3327 | ac_build_indexed_store(ctx, ctx->lds, |
| 3328 | dw_addr, value); |
| 3329 | } |
Dave Airlie | 82d47b9 | 2017-10-26 15:28:41 +1000 | [diff] [blame] | 3330 | |
| 3331 | LLVMValueRef ac_find_lsb(struct ac_llvm_context *ctx, |
| 3332 | LLVMTypeRef dst_type, |
| 3333 | LLVMValueRef src0) |
| 3334 | { |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3335 | unsigned src0_bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(src0)); |
| 3336 | const char *intrin_name; |
| 3337 | LLVMTypeRef type; |
| 3338 | LLVMValueRef zero; |
Samuel Pitoiset | 94dd08e | 2018-09-14 12:52:37 +0200 | [diff] [blame] | 3339 | |
| 3340 | switch (src0_bitsize) { |
| 3341 | case 64: |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3342 | intrin_name = "llvm.cttz.i64"; |
| 3343 | type = ctx->i64; |
| 3344 | zero = ctx->i64_0; |
Samuel Pitoiset | 94dd08e | 2018-09-14 12:52:37 +0200 | [diff] [blame] | 3345 | break; |
| 3346 | case 32: |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3347 | intrin_name = "llvm.cttz.i32"; |
| 3348 | type = ctx->i32; |
| 3349 | zero = ctx->i32_0; |
Samuel Pitoiset | 94dd08e | 2018-09-14 12:52:37 +0200 | [diff] [blame] | 3350 | break; |
| 3351 | case 16: |
| 3352 | intrin_name = "llvm.cttz.i16"; |
| 3353 | type = ctx->i16; |
| 3354 | zero = ctx->i16_0; |
| 3355 | break; |
Samuel Pitoiset | a45d9e3 | 2019-04-01 16:18:08 +0200 | [diff] [blame] | 3356 | case 8: |
| 3357 | intrin_name = "llvm.cttz.i8"; |
| 3358 | type = ctx->i8; |
| 3359 | zero = ctx->i8_0; |
| 3360 | break; |
Samuel Pitoiset | 94dd08e | 2018-09-14 12:52:37 +0200 | [diff] [blame] | 3361 | default: |
| 3362 | unreachable(!"invalid bitsize"); |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3363 | } |
| 3364 | |
Dave Airlie | 82d47b9 | 2017-10-26 15:28:41 +1000 | [diff] [blame] | 3365 | LLVMValueRef params[2] = { |
| 3366 | src0, |
| 3367 | |
| 3368 | /* The value of 1 means that ffs(x=0) = undef, so LLVM won't |
| 3369 | * add special code to check for x=0. The reason is that |
| 3370 | * the LLVM behavior for x=0 is different from what we |
| 3371 | * need here. However, LLVM also assumes that ffs(x) is |
| 3372 | * in [0, 31], but GLSL expects that ffs(0) = -1, so |
| 3373 | * a conditional assignment to handle 0 is still required. |
| 3374 | * |
| 3375 | * The hardware already implements the correct behavior. |
| 3376 | */ |
Marek Olšák | cc36ebb | 2018-08-29 00:15:16 -0400 | [diff] [blame] | 3377 | ctx->i1true, |
Dave Airlie | 82d47b9 | 2017-10-26 15:28:41 +1000 | [diff] [blame] | 3378 | }; |
| 3379 | |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3380 | LLVMValueRef lsb = ac_build_intrinsic(ctx, intrin_name, type, |
Dave Airlie | 82d47b9 | 2017-10-26 15:28:41 +1000 | [diff] [blame] | 3381 | params, 2, |
| 3382 | AC_FUNC_ATTR_READNONE); |
| 3383 | |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3384 | if (src0_bitsize == 64) { |
| 3385 | lsb = LLVMBuildTrunc(ctx->builder, lsb, ctx->i32, ""); |
Samuel Pitoiset | a45d9e3 | 2019-04-01 16:18:08 +0200 | [diff] [blame] | 3386 | } else if (src0_bitsize < 32) { |
Samuel Pitoiset | 7a088d1 | 2019-03-26 11:34:45 +0100 | [diff] [blame] | 3387 | lsb = LLVMBuildSExt(ctx->builder, lsb, ctx->i32, ""); |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3388 | } |
| 3389 | |
Dave Airlie | 82d47b9 | 2017-10-26 15:28:41 +1000 | [diff] [blame] | 3390 | /* TODO: We need an intrinsic to skip this conditional. */ |
| 3391 | /* Check for zero: */ |
| 3392 | return LLVMBuildSelect(ctx->builder, LLVMBuildICmp(ctx->builder, |
| 3393 | LLVMIntEQ, src0, |
Timothy Arceri | 12a2350 | 2018-02-06 14:38:57 +1100 | [diff] [blame] | 3394 | zero, ""), |
Dave Airlie | 82d47b9 | 2017-10-26 15:28:41 +1000 | [diff] [blame] | 3395 | LLVMConstInt(ctx->i32, -1, 0), lsb, ""); |
| 3396 | } |
Marek Olšák | b633999 | 2017-12-31 23:35:59 +0100 | [diff] [blame] | 3397 | |
| 3398 | LLVMTypeRef ac_array_in_const_addr_space(LLVMTypeRef elem_type) |
| 3399 | { |
Marek Olšák | 6b0b8f1 | 2019-05-09 20:58:21 -0400 | [diff] [blame] | 3400 | return LLVMPointerType(elem_type, AC_ADDR_SPACE_CONST); |
Marek Olšák | b633999 | 2017-12-31 23:35:59 +0100 | [diff] [blame] | 3401 | } |
Marek Olšák | 931ec80 | 2018-01-01 21:04:22 +0100 | [diff] [blame] | 3402 | |
| 3403 | LLVMTypeRef ac_array_in_const32_addr_space(LLVMTypeRef elem_type) |
| 3404 | { |
Marek Olšák | 6b0b8f1 | 2019-05-09 20:58:21 -0400 | [diff] [blame] | 3405 | return LLVMPointerType(elem_type, AC_ADDR_SPACE_CONST_32BIT); |
Marek Olšák | 931ec80 | 2018-01-01 21:04:22 +0100 | [diff] [blame] | 3406 | } |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3407 | |
| 3408 | static struct ac_llvm_flow * |
| 3409 | get_current_flow(struct ac_llvm_context *ctx) |
| 3410 | { |
| 3411 | if (ctx->flow_depth > 0) |
| 3412 | return &ctx->flow[ctx->flow_depth - 1]; |
| 3413 | return NULL; |
| 3414 | } |
| 3415 | |
| 3416 | static struct ac_llvm_flow * |
| 3417 | get_innermost_loop(struct ac_llvm_context *ctx) |
| 3418 | { |
| 3419 | for (unsigned i = ctx->flow_depth; i > 0; --i) { |
| 3420 | if (ctx->flow[i - 1].loop_entry_block) |
| 3421 | return &ctx->flow[i - 1]; |
| 3422 | } |
| 3423 | return NULL; |
| 3424 | } |
| 3425 | |
| 3426 | static struct ac_llvm_flow * |
| 3427 | push_flow(struct ac_llvm_context *ctx) |
| 3428 | { |
| 3429 | struct ac_llvm_flow *flow; |
| 3430 | |
| 3431 | if (ctx->flow_depth >= ctx->flow_depth_max) { |
| 3432 | unsigned new_max = MAX2(ctx->flow_depth << 1, |
| 3433 | AC_LLVM_INITIAL_CF_DEPTH); |
| 3434 | |
| 3435 | ctx->flow = realloc(ctx->flow, new_max * sizeof(*ctx->flow)); |
| 3436 | ctx->flow_depth_max = new_max; |
| 3437 | } |
| 3438 | |
| 3439 | flow = &ctx->flow[ctx->flow_depth]; |
| 3440 | ctx->flow_depth++; |
| 3441 | |
| 3442 | flow->next_block = NULL; |
| 3443 | flow->loop_entry_block = NULL; |
| 3444 | return flow; |
| 3445 | } |
| 3446 | |
| 3447 | static void set_basicblock_name(LLVMBasicBlockRef bb, const char *base, |
| 3448 | int label_id) |
| 3449 | { |
| 3450 | char buf[32]; |
| 3451 | snprintf(buf, sizeof(buf), "%s%d", base, label_id); |
| 3452 | LLVMSetValueName(LLVMBasicBlockAsValue(bb), buf); |
| 3453 | } |
| 3454 | |
| 3455 | /* Append a basic block at the level of the parent flow. |
| 3456 | */ |
| 3457 | static LLVMBasicBlockRef append_basic_block(struct ac_llvm_context *ctx, |
| 3458 | const char *name) |
| 3459 | { |
| 3460 | assert(ctx->flow_depth >= 1); |
| 3461 | |
| 3462 | if (ctx->flow_depth >= 2) { |
| 3463 | struct ac_llvm_flow *flow = &ctx->flow[ctx->flow_depth - 2]; |
| 3464 | |
| 3465 | return LLVMInsertBasicBlockInContext(ctx->context, |
| 3466 | flow->next_block, name); |
| 3467 | } |
| 3468 | |
| 3469 | LLVMValueRef main_fn = |
| 3470 | LLVMGetBasicBlockParent(LLVMGetInsertBlock(ctx->builder)); |
| 3471 | return LLVMAppendBasicBlockInContext(ctx->context, main_fn, name); |
| 3472 | } |
| 3473 | |
| 3474 | /* Emit a branch to the given default target for the current block if |
| 3475 | * applicable -- that is, if the current block does not already contain a |
| 3476 | * branch from a break or continue. |
| 3477 | */ |
| 3478 | static void emit_default_branch(LLVMBuilderRef builder, |
| 3479 | LLVMBasicBlockRef target) |
| 3480 | { |
| 3481 | if (!LLVMGetBasicBlockTerminator(LLVMGetInsertBlock(builder))) |
| 3482 | LLVMBuildBr(builder, target); |
| 3483 | } |
| 3484 | |
| 3485 | void ac_build_bgnloop(struct ac_llvm_context *ctx, int label_id) |
| 3486 | { |
| 3487 | struct ac_llvm_flow *flow = push_flow(ctx); |
| 3488 | flow->loop_entry_block = append_basic_block(ctx, "LOOP"); |
| 3489 | flow->next_block = append_basic_block(ctx, "ENDLOOP"); |
| 3490 | set_basicblock_name(flow->loop_entry_block, "loop", label_id); |
| 3491 | LLVMBuildBr(ctx->builder, flow->loop_entry_block); |
| 3492 | LLVMPositionBuilderAtEnd(ctx->builder, flow->loop_entry_block); |
| 3493 | } |
| 3494 | |
| 3495 | void ac_build_break(struct ac_llvm_context *ctx) |
| 3496 | { |
| 3497 | struct ac_llvm_flow *flow = get_innermost_loop(ctx); |
| 3498 | LLVMBuildBr(ctx->builder, flow->next_block); |
| 3499 | } |
| 3500 | |
| 3501 | void ac_build_continue(struct ac_llvm_context *ctx) |
| 3502 | { |
| 3503 | struct ac_llvm_flow *flow = get_innermost_loop(ctx); |
| 3504 | LLVMBuildBr(ctx->builder, flow->loop_entry_block); |
| 3505 | } |
| 3506 | |
| 3507 | void ac_build_else(struct ac_llvm_context *ctx, int label_id) |
| 3508 | { |
| 3509 | struct ac_llvm_flow *current_branch = get_current_flow(ctx); |
| 3510 | LLVMBasicBlockRef endif_block; |
| 3511 | |
| 3512 | assert(!current_branch->loop_entry_block); |
| 3513 | |
| 3514 | endif_block = append_basic_block(ctx, "ENDIF"); |
| 3515 | emit_default_branch(ctx->builder, endif_block); |
| 3516 | |
| 3517 | LLVMPositionBuilderAtEnd(ctx->builder, current_branch->next_block); |
| 3518 | set_basicblock_name(current_branch->next_block, "else", label_id); |
| 3519 | |
| 3520 | current_branch->next_block = endif_block; |
| 3521 | } |
| 3522 | |
| 3523 | void ac_build_endif(struct ac_llvm_context *ctx, int label_id) |
| 3524 | { |
| 3525 | struct ac_llvm_flow *current_branch = get_current_flow(ctx); |
| 3526 | |
| 3527 | assert(!current_branch->loop_entry_block); |
| 3528 | |
| 3529 | emit_default_branch(ctx->builder, current_branch->next_block); |
| 3530 | LLVMPositionBuilderAtEnd(ctx->builder, current_branch->next_block); |
| 3531 | set_basicblock_name(current_branch->next_block, "endif", label_id); |
| 3532 | |
| 3533 | ctx->flow_depth--; |
| 3534 | } |
| 3535 | |
| 3536 | void ac_build_endloop(struct ac_llvm_context *ctx, int label_id) |
| 3537 | { |
| 3538 | struct ac_llvm_flow *current_loop = get_current_flow(ctx); |
| 3539 | |
| 3540 | assert(current_loop->loop_entry_block); |
| 3541 | |
| 3542 | emit_default_branch(ctx->builder, current_loop->loop_entry_block); |
| 3543 | |
| 3544 | LLVMPositionBuilderAtEnd(ctx->builder, current_loop->next_block); |
| 3545 | set_basicblock_name(current_loop->next_block, "endloop", label_id); |
| 3546 | ctx->flow_depth--; |
| 3547 | } |
| 3548 | |
Nicolai Hähnle | 3963402 | 2018-05-23 22:04:20 +0200 | [diff] [blame] | 3549 | 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] | 3550 | { |
| 3551 | struct ac_llvm_flow *flow = push_flow(ctx); |
| 3552 | LLVMBasicBlockRef if_block; |
| 3553 | |
| 3554 | if_block = append_basic_block(ctx, "IF"); |
| 3555 | flow->next_block = append_basic_block(ctx, "ELSE"); |
| 3556 | set_basicblock_name(if_block, "if", label_id); |
| 3557 | LLVMBuildCondBr(ctx->builder, cond, if_block, flow->next_block); |
| 3558 | LLVMPositionBuilderAtEnd(ctx->builder, if_block); |
| 3559 | } |
| 3560 | |
| 3561 | void ac_build_if(struct ac_llvm_context *ctx, LLVMValueRef value, |
| 3562 | int label_id) |
| 3563 | { |
| 3564 | LLVMValueRef cond = LLVMBuildFCmp(ctx->builder, LLVMRealUNE, |
| 3565 | value, ctx->f32_0, ""); |
Nicolai Hähnle | 3963402 | 2018-05-23 22:04:20 +0200 | [diff] [blame] | 3566 | ac_build_ifcc(ctx, cond, label_id); |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3567 | } |
| 3568 | |
| 3569 | void ac_build_uif(struct ac_llvm_context *ctx, LLVMValueRef value, |
| 3570 | int label_id) |
| 3571 | { |
| 3572 | LLVMValueRef cond = LLVMBuildICmp(ctx->builder, LLVMIntNE, |
| 3573 | ac_to_integer(ctx, value), |
| 3574 | ctx->i32_0, ""); |
Nicolai Hähnle | 3963402 | 2018-05-23 22:04:20 +0200 | [diff] [blame] | 3575 | ac_build_ifcc(ctx, cond, label_id); |
Timothy Arceri | 42627da | 2018-03-07 10:53:34 +1100 | [diff] [blame] | 3576 | } |
Samuel Pitoiset | bf63682 | 2018-03-09 16:22:44 +0100 | [diff] [blame] | 3577 | |
Marek Olšák | 82f5f89 | 2018-09-21 03:27:06 -0400 | [diff] [blame] | 3578 | LLVMValueRef ac_build_alloca_undef(struct ac_llvm_context *ac, LLVMTypeRef type, |
Samuel Pitoiset | bf63682 | 2018-03-09 16:22:44 +0100 | [diff] [blame] | 3579 | const char *name) |
| 3580 | { |
| 3581 | LLVMBuilderRef builder = ac->builder; |
| 3582 | LLVMBasicBlockRef current_block = LLVMGetInsertBlock(builder); |
| 3583 | LLVMValueRef function = LLVMGetBasicBlockParent(current_block); |
| 3584 | LLVMBasicBlockRef first_block = LLVMGetEntryBasicBlock(function); |
| 3585 | LLVMValueRef first_instr = LLVMGetFirstInstruction(first_block); |
| 3586 | LLVMBuilderRef first_builder = LLVMCreateBuilderInContext(ac->context); |
| 3587 | LLVMValueRef res; |
| 3588 | |
| 3589 | if (first_instr) { |
| 3590 | LLVMPositionBuilderBefore(first_builder, first_instr); |
| 3591 | } else { |
| 3592 | LLVMPositionBuilderAtEnd(first_builder, first_block); |
| 3593 | } |
| 3594 | |
| 3595 | res = LLVMBuildAlloca(first_builder, type, name); |
Samuel Pitoiset | bf63682 | 2018-03-09 16:22:44 +0100 | [diff] [blame] | 3596 | LLVMDisposeBuilder(first_builder); |
Samuel Pitoiset | bf63682 | 2018-03-09 16:22:44 +0100 | [diff] [blame] | 3597 | return res; |
| 3598 | } |
| 3599 | |
Marek Olšák | 82f5f89 | 2018-09-21 03:27:06 -0400 | [diff] [blame] | 3600 | LLVMValueRef ac_build_alloca(struct ac_llvm_context *ac, |
Samuel Pitoiset | bf63682 | 2018-03-09 16:22:44 +0100 | [diff] [blame] | 3601 | LLVMTypeRef type, const char *name) |
| 3602 | { |
Marek Olšák | 82f5f89 | 2018-09-21 03:27:06 -0400 | [diff] [blame] | 3603 | LLVMValueRef ptr = ac_build_alloca_undef(ac, type, name); |
| 3604 | LLVMBuildStore(ac->builder, LLVMConstNull(type), ptr); |
Samuel Pitoiset | bf63682 | 2018-03-09 16:22:44 +0100 | [diff] [blame] | 3605 | return ptr; |
| 3606 | } |
Samuel Pitoiset | 895632b | 2018-03-09 16:26:34 +0100 | [diff] [blame] | 3607 | |
| 3608 | LLVMValueRef ac_cast_ptr(struct ac_llvm_context *ctx, LLVMValueRef ptr, |
| 3609 | LLVMTypeRef type) |
| 3610 | { |
| 3611 | int addr_space = LLVMGetPointerAddressSpace(LLVMTypeOf(ptr)); |
| 3612 | return LLVMBuildBitCast(ctx->builder, ptr, |
| 3613 | LLVMPointerType(type, addr_space), ""); |
| 3614 | } |
Samuel Pitoiset | 28bb687 | 2018-03-09 16:36:31 +0100 | [diff] [blame] | 3615 | |
| 3616 | LLVMValueRef ac_trim_vector(struct ac_llvm_context *ctx, LLVMValueRef value, |
| 3617 | unsigned count) |
| 3618 | { |
| 3619 | unsigned num_components = ac_get_llvm_num_components(value); |
| 3620 | if (count == num_components) |
| 3621 | return value; |
| 3622 | |
Rhys Perry | 12dc7cb | 2018-12-05 13:42:47 +0000 | [diff] [blame] | 3623 | LLVMValueRef masks[MAX2(count, 2)]; |
| 3624 | masks[0] = ctx->i32_0; |
| 3625 | masks[1] = ctx->i32_1; |
| 3626 | for (unsigned i = 2; i < count; i++) |
| 3627 | masks[i] = LLVMConstInt(ctx->i32, i, false); |
Samuel Pitoiset | 28bb687 | 2018-03-09 16:36:31 +0100 | [diff] [blame] | 3628 | |
| 3629 | if (count == 1) |
| 3630 | return LLVMBuildExtractElement(ctx->builder, value, masks[0], |
| 3631 | ""); |
| 3632 | |
| 3633 | LLVMValueRef swizzle = LLVMConstVector(masks, count); |
| 3634 | return LLVMBuildShuffleVector(ctx->builder, value, value, swizzle, ""); |
| 3635 | } |
Samuel Pitoiset | 61a91ca | 2018-03-09 16:39:35 +0100 | [diff] [blame] | 3636 | |
| 3637 | LLVMValueRef ac_unpack_param(struct ac_llvm_context *ctx, LLVMValueRef param, |
| 3638 | unsigned rshift, unsigned bitwidth) |
| 3639 | { |
| 3640 | LLVMValueRef value = param; |
| 3641 | if (rshift) |
| 3642 | value = LLVMBuildLShr(ctx->builder, value, |
| 3643 | LLVMConstInt(ctx->i32, rshift, false), ""); |
| 3644 | |
| 3645 | if (rshift + bitwidth < 32) { |
| 3646 | unsigned mask = (1 << bitwidth) - 1; |
| 3647 | value = LLVMBuildAnd(ctx->builder, value, |
| 3648 | LLVMConstInt(ctx->i32, mask, false), ""); |
| 3649 | } |
| 3650 | return value; |
| 3651 | } |
Marek Olšák | dc04e4b | 2018-03-20 19:14:57 -0400 | [diff] [blame] | 3652 | |
| 3653 | /* Adjust the sample index according to FMASK. |
| 3654 | * |
| 3655 | * For uncompressed MSAA surfaces, FMASK should return 0x76543210, |
| 3656 | * which is the identity mapping. Each nibble says which physical sample |
| 3657 | * should be fetched to get that sample. |
| 3658 | * |
| 3659 | * For example, 0x11111100 means there are only 2 samples stored and |
| 3660 | * the second sample covers 3/4 of the pixel. When reading samples 0 |
| 3661 | * and 1, return physical sample 0 (determined by the first two 0s |
| 3662 | * in FMASK), otherwise return physical sample 1. |
| 3663 | * |
| 3664 | * The sample index should be adjusted as follows: |
| 3665 | * addr[sample_index] = (fmask >> (addr[sample_index] * 4)) & 0xF; |
| 3666 | */ |
| 3667 | void ac_apply_fmask_to_sample(struct ac_llvm_context *ac, LLVMValueRef fmask, |
| 3668 | LLVMValueRef *addr, bool is_array_tex) |
| 3669 | { |
| 3670 | struct ac_image_args fmask_load = {}; |
| 3671 | fmask_load.opcode = ac_image_load; |
| 3672 | fmask_load.resource = fmask; |
| 3673 | fmask_load.dmask = 0xf; |
Nicolai Hähnle | f931583 | 2018-02-16 14:21:56 +0100 | [diff] [blame] | 3674 | fmask_load.dim = is_array_tex ? ac_image_2darray : ac_image_2d; |
Marek Olšák | 971bc10 | 2019-04-10 21:24:18 -0400 | [diff] [blame] | 3675 | fmask_load.attributes = AC_FUNC_ATTR_READNONE; |
Marek Olšák | dc04e4b | 2018-03-20 19:14:57 -0400 | [diff] [blame] | 3676 | |
Nicolai Hähnle | 625dcbb | 2018-03-23 11:20:24 +0100 | [diff] [blame] | 3677 | fmask_load.coords[0] = addr[0]; |
| 3678 | fmask_load.coords[1] = addr[1]; |
| 3679 | if (is_array_tex) |
| 3680 | fmask_load.coords[2] = addr[2]; |
Marek Olšák | dc04e4b | 2018-03-20 19:14:57 -0400 | [diff] [blame] | 3681 | |
| 3682 | LLVMValueRef fmask_value = ac_build_image_opcode(ac, &fmask_load); |
| 3683 | fmask_value = LLVMBuildExtractElement(ac->builder, fmask_value, |
| 3684 | ac->i32_0, ""); |
| 3685 | |
| 3686 | /* Apply the formula. */ |
| 3687 | unsigned sample_chan = is_array_tex ? 3 : 2; |
| 3688 | LLVMValueRef final_sample; |
| 3689 | final_sample = LLVMBuildMul(ac->builder, addr[sample_chan], |
| 3690 | LLVMConstInt(ac->i32, 4, 0), ""); |
| 3691 | final_sample = LLVMBuildLShr(ac->builder, fmask_value, final_sample, ""); |
Marek Olšák | e5e57c3 | 2018-05-17 23:23:24 -0400 | [diff] [blame] | 3692 | /* Mask the sample index by 0x7, because 0x8 means an unknown value |
| 3693 | * with EQAA, so those will map to 0. */ |
Marek Olšák | dc04e4b | 2018-03-20 19:14:57 -0400 | [diff] [blame] | 3694 | final_sample = LLVMBuildAnd(ac->builder, final_sample, |
Marek Olšák | e5e57c3 | 2018-05-17 23:23:24 -0400 | [diff] [blame] | 3695 | LLVMConstInt(ac->i32, 0x7, 0), ""); |
Marek Olšák | dc04e4b | 2018-03-20 19:14:57 -0400 | [diff] [blame] | 3696 | |
| 3697 | /* 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] | 3698 | * resource descriptor is 0 (invalid). |
Marek Olšák | dc04e4b | 2018-03-20 19:14:57 -0400 | [diff] [blame] | 3699 | */ |
| 3700 | LLVMValueRef tmp; |
| 3701 | tmp = LLVMBuildBitCast(ac->builder, fmask, ac->v8i32, ""); |
| 3702 | tmp = LLVMBuildExtractElement(ac->builder, tmp, ac->i32_1, ""); |
| 3703 | tmp = LLVMBuildICmp(ac->builder, LLVMIntNE, tmp, ac->i32_0, ""); |
| 3704 | |
| 3705 | /* Replace the MSAA sample index. */ |
| 3706 | addr[sample_chan] = LLVMBuildSelect(ac->builder, tmp, final_sample, |
| 3707 | addr[sample_chan], ""); |
| 3708 | } |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3709 | |
| 3710 | static LLVMValueRef |
| 3711 | _ac_build_readlane(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef lane) |
| 3712 | { |
| 3713 | ac_build_optimization_barrier(ctx, &src); |
| 3714 | return ac_build_intrinsic(ctx, |
| 3715 | lane == NULL ? "llvm.amdgcn.readfirstlane" : "llvm.amdgcn.readlane", |
| 3716 | LLVMTypeOf(src), (LLVMValueRef []) { |
| 3717 | src, lane }, |
| 3718 | lane == NULL ? 1 : 2, |
| 3719 | AC_FUNC_ATTR_READNONE | |
| 3720 | AC_FUNC_ATTR_CONVERGENT); |
| 3721 | } |
| 3722 | |
| 3723 | /** |
| 3724 | * Builds the "llvm.amdgcn.readlane" or "llvm.amdgcn.readfirstlane" intrinsic. |
| 3725 | * @param ctx |
| 3726 | * @param src |
| 3727 | * @param lane - id of the lane or NULL for the first active lane |
| 3728 | * @return value of the lane |
| 3729 | */ |
| 3730 | LLVMValueRef |
| 3731 | ac_build_readlane(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef lane) |
| 3732 | { |
| 3733 | LLVMTypeRef src_type = LLVMTypeOf(src); |
| 3734 | src = ac_to_integer(ctx, src); |
| 3735 | unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src)); |
| 3736 | LLVMValueRef ret; |
| 3737 | |
| 3738 | if (bits == 32) { |
| 3739 | ret = _ac_build_readlane(ctx, src, lane); |
| 3740 | } else { |
| 3741 | assert(bits % 32 == 0); |
| 3742 | LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32); |
| 3743 | LLVMValueRef src_vector = |
| 3744 | LLVMBuildBitCast(ctx->builder, src, vec_type, ""); |
| 3745 | ret = LLVMGetUndef(vec_type); |
| 3746 | for (unsigned i = 0; i < bits / 32; i++) { |
| 3747 | src = LLVMBuildExtractElement(ctx->builder, src_vector, |
| 3748 | LLVMConstInt(ctx->i32, i, 0), ""); |
| 3749 | LLVMValueRef ret_comp = _ac_build_readlane(ctx, src, lane); |
| 3750 | ret = LLVMBuildInsertElement(ctx->builder, ret, ret_comp, |
| 3751 | LLVMConstInt(ctx->i32, i, 0), ""); |
| 3752 | } |
| 3753 | } |
| 3754 | return LLVMBuildBitCast(ctx->builder, ret, src_type, ""); |
| 3755 | } |
| 3756 | |
| 3757 | LLVMValueRef |
| 3758 | ac_build_writelane(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef value, LLVMValueRef lane) |
| 3759 | { |
| 3760 | /* TODO: Use the actual instruction when LLVM adds an intrinsic for it. |
| 3761 | */ |
| 3762 | LLVMValueRef pred = LLVMBuildICmp(ctx->builder, LLVMIntEQ, lane, |
| 3763 | ac_get_thread_id(ctx), ""); |
| 3764 | return LLVMBuildSelect(ctx->builder, pred, value, src, ""); |
| 3765 | } |
| 3766 | |
| 3767 | LLVMValueRef |
| 3768 | ac_build_mbcnt(struct ac_llvm_context *ctx, LLVMValueRef mask) |
| 3769 | { |
| 3770 | LLVMValueRef mask_vec = LLVMBuildBitCast(ctx->builder, mask, |
| 3771 | LLVMVectorType(ctx->i32, 2), |
| 3772 | ""); |
| 3773 | LLVMValueRef mask_lo = LLVMBuildExtractElement(ctx->builder, mask_vec, |
| 3774 | ctx->i32_0, ""); |
| 3775 | LLVMValueRef mask_hi = LLVMBuildExtractElement(ctx->builder, mask_vec, |
| 3776 | ctx->i32_1, ""); |
| 3777 | LLVMValueRef val = |
| 3778 | ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.lo", ctx->i32, |
| 3779 | (LLVMValueRef []) { mask_lo, ctx->i32_0 }, |
| 3780 | 2, AC_FUNC_ATTR_READNONE); |
| 3781 | val = ac_build_intrinsic(ctx, "llvm.amdgcn.mbcnt.hi", ctx->i32, |
| 3782 | (LLVMValueRef []) { mask_hi, val }, |
| 3783 | 2, AC_FUNC_ATTR_READNONE); |
| 3784 | return val; |
| 3785 | } |
| 3786 | |
| 3787 | enum dpp_ctrl { |
| 3788 | _dpp_quad_perm = 0x000, |
| 3789 | _dpp_row_sl = 0x100, |
| 3790 | _dpp_row_sr = 0x110, |
| 3791 | _dpp_row_rr = 0x120, |
| 3792 | dpp_wf_sl1 = 0x130, |
| 3793 | dpp_wf_rl1 = 0x134, |
| 3794 | dpp_wf_sr1 = 0x138, |
| 3795 | dpp_wf_rr1 = 0x13C, |
| 3796 | dpp_row_mirror = 0x140, |
| 3797 | dpp_row_half_mirror = 0x141, |
| 3798 | dpp_row_bcast15 = 0x142, |
| 3799 | dpp_row_bcast31 = 0x143 |
| 3800 | }; |
| 3801 | |
| 3802 | static inline enum dpp_ctrl |
| 3803 | dpp_quad_perm(unsigned lane0, unsigned lane1, unsigned lane2, unsigned lane3) |
| 3804 | { |
| 3805 | assert(lane0 < 4 && lane1 < 4 && lane2 < 4 && lane3 < 4); |
| 3806 | return _dpp_quad_perm | lane0 | (lane1 << 2) | (lane2 << 4) | (lane3 << 6); |
| 3807 | } |
| 3808 | |
| 3809 | static inline enum dpp_ctrl |
| 3810 | dpp_row_sl(unsigned amount) |
| 3811 | { |
| 3812 | assert(amount > 0 && amount < 16); |
| 3813 | return _dpp_row_sl | amount; |
| 3814 | } |
| 3815 | |
| 3816 | static inline enum dpp_ctrl |
| 3817 | dpp_row_sr(unsigned amount) |
| 3818 | { |
| 3819 | assert(amount > 0 && amount < 16); |
| 3820 | return _dpp_row_sr | amount; |
| 3821 | } |
| 3822 | |
| 3823 | static LLVMValueRef |
| 3824 | _ac_build_dpp(struct ac_llvm_context *ctx, LLVMValueRef old, LLVMValueRef src, |
| 3825 | enum dpp_ctrl dpp_ctrl, unsigned row_mask, unsigned bank_mask, |
| 3826 | bool bound_ctrl) |
| 3827 | { |
| 3828 | return ac_build_intrinsic(ctx, "llvm.amdgcn.update.dpp.i32", |
| 3829 | LLVMTypeOf(old), |
| 3830 | (LLVMValueRef[]) { |
| 3831 | old, src, |
| 3832 | LLVMConstInt(ctx->i32, dpp_ctrl, 0), |
| 3833 | LLVMConstInt(ctx->i32, row_mask, 0), |
| 3834 | LLVMConstInt(ctx->i32, bank_mask, 0), |
| 3835 | LLVMConstInt(ctx->i1, bound_ctrl, 0) }, |
| 3836 | 6, AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT); |
| 3837 | } |
| 3838 | |
| 3839 | static LLVMValueRef |
| 3840 | ac_build_dpp(struct ac_llvm_context *ctx, LLVMValueRef old, LLVMValueRef src, |
| 3841 | enum dpp_ctrl dpp_ctrl, unsigned row_mask, unsigned bank_mask, |
| 3842 | bool bound_ctrl) |
| 3843 | { |
| 3844 | LLVMTypeRef src_type = LLVMTypeOf(src); |
| 3845 | src = ac_to_integer(ctx, src); |
| 3846 | old = ac_to_integer(ctx, old); |
| 3847 | unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src)); |
| 3848 | LLVMValueRef ret; |
| 3849 | if (bits == 32) { |
| 3850 | ret = _ac_build_dpp(ctx, old, src, dpp_ctrl, row_mask, |
| 3851 | bank_mask, bound_ctrl); |
| 3852 | } else { |
| 3853 | assert(bits % 32 == 0); |
| 3854 | LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32); |
| 3855 | LLVMValueRef src_vector = |
| 3856 | LLVMBuildBitCast(ctx->builder, src, vec_type, ""); |
| 3857 | LLVMValueRef old_vector = |
| 3858 | LLVMBuildBitCast(ctx->builder, old, vec_type, ""); |
| 3859 | ret = LLVMGetUndef(vec_type); |
| 3860 | for (unsigned i = 0; i < bits / 32; i++) { |
| 3861 | src = LLVMBuildExtractElement(ctx->builder, src_vector, |
| 3862 | LLVMConstInt(ctx->i32, i, |
| 3863 | 0), ""); |
| 3864 | old = LLVMBuildExtractElement(ctx->builder, old_vector, |
| 3865 | LLVMConstInt(ctx->i32, i, |
| 3866 | 0), ""); |
| 3867 | LLVMValueRef ret_comp = _ac_build_dpp(ctx, old, src, |
| 3868 | dpp_ctrl, |
| 3869 | row_mask, |
| 3870 | bank_mask, |
| 3871 | bound_ctrl); |
| 3872 | ret = LLVMBuildInsertElement(ctx->builder, ret, |
| 3873 | ret_comp, |
| 3874 | LLVMConstInt(ctx->i32, i, |
| 3875 | 0), ""); |
| 3876 | } |
| 3877 | } |
| 3878 | return LLVMBuildBitCast(ctx->builder, ret, src_type, ""); |
| 3879 | } |
| 3880 | |
| 3881 | static inline unsigned |
| 3882 | ds_pattern_bitmode(unsigned and_mask, unsigned or_mask, unsigned xor_mask) |
| 3883 | { |
| 3884 | assert(and_mask < 32 && or_mask < 32 && xor_mask < 32); |
| 3885 | return and_mask | (or_mask << 5) | (xor_mask << 10); |
| 3886 | } |
| 3887 | |
| 3888 | static LLVMValueRef |
| 3889 | _ac_build_ds_swizzle(struct ac_llvm_context *ctx, LLVMValueRef src, unsigned mask) |
| 3890 | { |
| 3891 | return ac_build_intrinsic(ctx, "llvm.amdgcn.ds.swizzle", |
| 3892 | LLVMTypeOf(src), (LLVMValueRef []) { |
| 3893 | src, LLVMConstInt(ctx->i32, mask, 0) }, |
| 3894 | 2, AC_FUNC_ATTR_READNONE | AC_FUNC_ATTR_CONVERGENT); |
| 3895 | } |
| 3896 | |
| 3897 | LLVMValueRef |
| 3898 | ac_build_ds_swizzle(struct ac_llvm_context *ctx, LLVMValueRef src, unsigned mask) |
| 3899 | { |
| 3900 | LLVMTypeRef src_type = LLVMTypeOf(src); |
| 3901 | src = ac_to_integer(ctx, src); |
| 3902 | unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src)); |
| 3903 | LLVMValueRef ret; |
| 3904 | if (bits == 32) { |
| 3905 | ret = _ac_build_ds_swizzle(ctx, src, mask); |
| 3906 | } else { |
| 3907 | assert(bits % 32 == 0); |
| 3908 | LLVMTypeRef vec_type = LLVMVectorType(ctx->i32, bits / 32); |
| 3909 | LLVMValueRef src_vector = |
| 3910 | LLVMBuildBitCast(ctx->builder, src, vec_type, ""); |
| 3911 | ret = LLVMGetUndef(vec_type); |
| 3912 | for (unsigned i = 0; i < bits / 32; i++) { |
| 3913 | src = LLVMBuildExtractElement(ctx->builder, src_vector, |
| 3914 | LLVMConstInt(ctx->i32, i, |
| 3915 | 0), ""); |
| 3916 | LLVMValueRef ret_comp = _ac_build_ds_swizzle(ctx, src, |
| 3917 | mask); |
| 3918 | ret = LLVMBuildInsertElement(ctx->builder, ret, |
| 3919 | ret_comp, |
| 3920 | LLVMConstInt(ctx->i32, i, |
| 3921 | 0), ""); |
| 3922 | } |
| 3923 | } |
| 3924 | return LLVMBuildBitCast(ctx->builder, ret, src_type, ""); |
| 3925 | } |
| 3926 | |
| 3927 | static LLVMValueRef |
| 3928 | ac_build_wwm(struct ac_llvm_context *ctx, LLVMValueRef src) |
| 3929 | { |
| 3930 | char name[32], type[8]; |
| 3931 | ac_build_type_name_for_intr(LLVMTypeOf(src), type, sizeof(type)); |
| 3932 | snprintf(name, sizeof(name), "llvm.amdgcn.wwm.%s", type); |
| 3933 | return ac_build_intrinsic(ctx, name, LLVMTypeOf(src), |
| 3934 | (LLVMValueRef []) { src }, 1, |
| 3935 | AC_FUNC_ATTR_READNONE); |
| 3936 | } |
| 3937 | |
| 3938 | static LLVMValueRef |
| 3939 | ac_build_set_inactive(struct ac_llvm_context *ctx, LLVMValueRef src, |
| 3940 | LLVMValueRef inactive) |
| 3941 | { |
Timothy Arceri | fae3b38 | 2018-06-07 10:30:01 +1000 | [diff] [blame] | 3942 | char name[33], type[8]; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 3943 | LLVMTypeRef src_type = LLVMTypeOf(src); |
| 3944 | src = ac_to_integer(ctx, src); |
| 3945 | inactive = ac_to_integer(ctx, inactive); |
| 3946 | ac_build_type_name_for_intr(LLVMTypeOf(src), type, sizeof(type)); |
| 3947 | snprintf(name, sizeof(name), "llvm.amdgcn.set.inactive.%s", type); |
| 3948 | LLVMValueRef ret = |
| 3949 | ac_build_intrinsic(ctx, name, |
| 3950 | LLVMTypeOf(src), (LLVMValueRef []) { |
| 3951 | src, inactive }, 2, |
| 3952 | AC_FUNC_ATTR_READNONE | |
| 3953 | AC_FUNC_ATTR_CONVERGENT); |
| 3954 | return LLVMBuildBitCast(ctx->builder, ret, src_type, ""); |
| 3955 | } |
| 3956 | |
| 3957 | static LLVMValueRef |
| 3958 | get_reduction_identity(struct ac_llvm_context *ctx, nir_op op, unsigned type_size) |
| 3959 | { |
| 3960 | if (type_size == 4) { |
| 3961 | switch (op) { |
| 3962 | case nir_op_iadd: return ctx->i32_0; |
| 3963 | case nir_op_fadd: return ctx->f32_0; |
| 3964 | case nir_op_imul: return ctx->i32_1; |
| 3965 | case nir_op_fmul: return ctx->f32_1; |
| 3966 | case nir_op_imin: return LLVMConstInt(ctx->i32, INT32_MAX, 0); |
| 3967 | case nir_op_umin: return LLVMConstInt(ctx->i32, UINT32_MAX, 0); |
| 3968 | case nir_op_fmin: return LLVMConstReal(ctx->f32, INFINITY); |
| 3969 | case nir_op_imax: return LLVMConstInt(ctx->i32, INT32_MIN, 0); |
| 3970 | case nir_op_umax: return ctx->i32_0; |
| 3971 | case nir_op_fmax: return LLVMConstReal(ctx->f32, -INFINITY); |
| 3972 | case nir_op_iand: return LLVMConstInt(ctx->i32, -1, 0); |
| 3973 | case nir_op_ior: return ctx->i32_0; |
| 3974 | case nir_op_ixor: return ctx->i32_0; |
| 3975 | default: |
| 3976 | unreachable("bad reduction intrinsic"); |
| 3977 | } |
| 3978 | } else { /* type_size == 64bit */ |
| 3979 | switch (op) { |
| 3980 | case nir_op_iadd: return ctx->i64_0; |
| 3981 | case nir_op_fadd: return ctx->f64_0; |
| 3982 | case nir_op_imul: return ctx->i64_1; |
| 3983 | case nir_op_fmul: return ctx->f64_1; |
| 3984 | case nir_op_imin: return LLVMConstInt(ctx->i64, INT64_MAX, 0); |
| 3985 | case nir_op_umin: return LLVMConstInt(ctx->i64, UINT64_MAX, 0); |
| 3986 | case nir_op_fmin: return LLVMConstReal(ctx->f64, INFINITY); |
| 3987 | case nir_op_imax: return LLVMConstInt(ctx->i64, INT64_MIN, 0); |
| 3988 | case nir_op_umax: return ctx->i64_0; |
| 3989 | case nir_op_fmax: return LLVMConstReal(ctx->f64, -INFINITY); |
| 3990 | case nir_op_iand: return LLVMConstInt(ctx->i64, -1, 0); |
| 3991 | case nir_op_ior: return ctx->i64_0; |
| 3992 | case nir_op_ixor: return ctx->i64_0; |
| 3993 | default: |
| 3994 | unreachable("bad reduction intrinsic"); |
| 3995 | } |
| 3996 | } |
| 3997 | } |
| 3998 | |
| 3999 | static LLVMValueRef |
| 4000 | ac_build_alu_op(struct ac_llvm_context *ctx, LLVMValueRef lhs, LLVMValueRef rhs, nir_op op) |
| 4001 | { |
| 4002 | bool _64bit = ac_get_type_size(LLVMTypeOf(lhs)) == 8; |
| 4003 | switch (op) { |
| 4004 | case nir_op_iadd: return LLVMBuildAdd(ctx->builder, lhs, rhs, ""); |
| 4005 | case nir_op_fadd: return LLVMBuildFAdd(ctx->builder, lhs, rhs, ""); |
| 4006 | case nir_op_imul: return LLVMBuildMul(ctx->builder, lhs, rhs, ""); |
| 4007 | case nir_op_fmul: return LLVMBuildFMul(ctx->builder, lhs, rhs, ""); |
| 4008 | case nir_op_imin: return LLVMBuildSelect(ctx->builder, |
| 4009 | LLVMBuildICmp(ctx->builder, LLVMIntSLT, lhs, rhs, ""), |
| 4010 | lhs, rhs, ""); |
| 4011 | case nir_op_umin: return LLVMBuildSelect(ctx->builder, |
| 4012 | LLVMBuildICmp(ctx->builder, LLVMIntULT, lhs, rhs, ""), |
| 4013 | lhs, rhs, ""); |
| 4014 | case nir_op_fmin: return ac_build_intrinsic(ctx, |
| 4015 | _64bit ? "llvm.minnum.f64" : "llvm.minnum.f32", |
| 4016 | _64bit ? ctx->f64 : ctx->f32, |
| 4017 | (LLVMValueRef[]){lhs, rhs}, 2, AC_FUNC_ATTR_READNONE); |
| 4018 | case nir_op_imax: return LLVMBuildSelect(ctx->builder, |
| 4019 | LLVMBuildICmp(ctx->builder, LLVMIntSGT, lhs, rhs, ""), |
| 4020 | lhs, rhs, ""); |
| 4021 | case nir_op_umax: return LLVMBuildSelect(ctx->builder, |
| 4022 | LLVMBuildICmp(ctx->builder, LLVMIntUGT, lhs, rhs, ""), |
| 4023 | lhs, rhs, ""); |
| 4024 | case nir_op_fmax: return ac_build_intrinsic(ctx, |
| 4025 | _64bit ? "llvm.maxnum.f64" : "llvm.maxnum.f32", |
| 4026 | _64bit ? ctx->f64 : ctx->f32, |
| 4027 | (LLVMValueRef[]){lhs, rhs}, 2, AC_FUNC_ATTR_READNONE); |
| 4028 | case nir_op_iand: return LLVMBuildAnd(ctx->builder, lhs, rhs, ""); |
| 4029 | case nir_op_ior: return LLVMBuildOr(ctx->builder, lhs, rhs, ""); |
| 4030 | case nir_op_ixor: return LLVMBuildXor(ctx->builder, lhs, rhs, ""); |
| 4031 | default: |
| 4032 | unreachable("bad reduction intrinsic"); |
| 4033 | } |
| 4034 | } |
| 4035 | |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4036 | /** |
| 4037 | * \param maxprefix specifies that the result only needs to be correct for a |
| 4038 | * prefix of this many threads |
| 4039 | * |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 4040 | * TODO: add inclusive and excluse scan functions for GFX6. |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4041 | */ |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4042 | static LLVMValueRef |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4043 | ac_build_scan(struct ac_llvm_context *ctx, nir_op op, LLVMValueRef src, LLVMValueRef identity, |
| 4044 | unsigned maxprefix) |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4045 | { |
| 4046 | LLVMValueRef result, tmp; |
| 4047 | result = src; |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4048 | if (maxprefix <= 1) |
| 4049 | return result; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4050 | tmp = ac_build_dpp(ctx, identity, src, dpp_row_sr(1), 0xf, 0xf, false); |
| 4051 | result = ac_build_alu_op(ctx, result, tmp, op); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4052 | if (maxprefix <= 2) |
| 4053 | return result; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4054 | tmp = ac_build_dpp(ctx, identity, src, dpp_row_sr(2), 0xf, 0xf, false); |
| 4055 | result = ac_build_alu_op(ctx, result, tmp, op); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4056 | if (maxprefix <= 3) |
| 4057 | return result; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4058 | tmp = ac_build_dpp(ctx, identity, src, dpp_row_sr(3), 0xf, 0xf, false); |
| 4059 | result = ac_build_alu_op(ctx, result, tmp, op); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4060 | if (maxprefix <= 4) |
| 4061 | return result; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4062 | tmp = ac_build_dpp(ctx, identity, result, dpp_row_sr(4), 0xf, 0xe, false); |
| 4063 | result = ac_build_alu_op(ctx, result, tmp, op); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4064 | if (maxprefix <= 8) |
| 4065 | return result; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4066 | tmp = ac_build_dpp(ctx, identity, result, dpp_row_sr(8), 0xf, 0xc, false); |
| 4067 | result = ac_build_alu_op(ctx, result, tmp, op); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4068 | if (maxprefix <= 16) |
| 4069 | return result; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4070 | tmp = ac_build_dpp(ctx, identity, result, dpp_row_bcast15, 0xa, 0xf, false); |
| 4071 | result = ac_build_alu_op(ctx, result, tmp, op); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4072 | if (maxprefix <= 32) |
| 4073 | return result; |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4074 | tmp = ac_build_dpp(ctx, identity, result, dpp_row_bcast31, 0xc, 0xf, false); |
| 4075 | result = ac_build_alu_op(ctx, result, tmp, op); |
| 4076 | return result; |
| 4077 | } |
| 4078 | |
| 4079 | LLVMValueRef |
| 4080 | ac_build_inclusive_scan(struct ac_llvm_context *ctx, LLVMValueRef src, nir_op op) |
| 4081 | { |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4082 | LLVMValueRef result; |
Nicolai Hähnle | 8efaffa | 2018-09-20 19:09:50 +0200 | [diff] [blame] | 4083 | |
| 4084 | if (LLVMTypeOf(src) == ctx->i1 && op == nir_op_iadd) { |
| 4085 | LLVMBuilderRef builder = ctx->builder; |
| 4086 | src = LLVMBuildZExt(builder, src, ctx->i32, ""); |
| 4087 | result = ac_build_ballot(ctx, src); |
| 4088 | result = ac_build_mbcnt(ctx, result); |
| 4089 | result = LLVMBuildAdd(builder, result, src, ""); |
| 4090 | return result; |
| 4091 | } |
| 4092 | |
| 4093 | ac_build_optimization_barrier(ctx, &src); |
| 4094 | |
Nicolai Hähnle | 3c77f26 | 2018-11-29 19:00:15 +0100 | [diff] [blame] | 4095 | LLVMValueRef identity = |
| 4096 | get_reduction_identity(ctx, op, ac_get_type_size(LLVMTypeOf(src))); |
| 4097 | result = LLVMBuildBitCast(ctx->builder, ac_build_set_inactive(ctx, src, identity), |
| 4098 | LLVMTypeOf(identity), ""); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4099 | result = ac_build_scan(ctx, op, result, identity, 64); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4100 | |
| 4101 | return ac_build_wwm(ctx, result); |
| 4102 | } |
| 4103 | |
| 4104 | LLVMValueRef |
| 4105 | ac_build_exclusive_scan(struct ac_llvm_context *ctx, LLVMValueRef src, nir_op op) |
| 4106 | { |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4107 | LLVMValueRef result; |
Nicolai Hähnle | 8efaffa | 2018-09-20 19:09:50 +0200 | [diff] [blame] | 4108 | |
| 4109 | if (LLVMTypeOf(src) == ctx->i1 && op == nir_op_iadd) { |
| 4110 | LLVMBuilderRef builder = ctx->builder; |
| 4111 | src = LLVMBuildZExt(builder, src, ctx->i32, ""); |
| 4112 | result = ac_build_ballot(ctx, src); |
| 4113 | result = ac_build_mbcnt(ctx, result); |
| 4114 | return result; |
| 4115 | } |
| 4116 | |
| 4117 | ac_build_optimization_barrier(ctx, &src); |
| 4118 | |
Nicolai Hähnle | 3c77f26 | 2018-11-29 19:00:15 +0100 | [diff] [blame] | 4119 | LLVMValueRef identity = |
| 4120 | get_reduction_identity(ctx, op, ac_get_type_size(LLVMTypeOf(src))); |
| 4121 | result = LLVMBuildBitCast(ctx->builder, ac_build_set_inactive(ctx, src, identity), |
| 4122 | LLVMTypeOf(identity), ""); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4123 | result = ac_build_dpp(ctx, identity, result, dpp_wf_sr1, 0xf, 0xf, false); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4124 | result = ac_build_scan(ctx, op, result, identity, 64); |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4125 | |
| 4126 | return ac_build_wwm(ctx, result); |
| 4127 | } |
| 4128 | |
| 4129 | LLVMValueRef |
| 4130 | ac_build_reduce(struct ac_llvm_context *ctx, LLVMValueRef src, nir_op op, unsigned cluster_size) |
| 4131 | { |
| 4132 | if (cluster_size == 1) return src; |
| 4133 | ac_build_optimization_barrier(ctx, &src); |
| 4134 | LLVMValueRef result, swap; |
| 4135 | LLVMValueRef identity = get_reduction_identity(ctx, op, |
| 4136 | ac_get_type_size(LLVMTypeOf(src))); |
| 4137 | result = LLVMBuildBitCast(ctx->builder, |
| 4138 | ac_build_set_inactive(ctx, src, identity), |
| 4139 | LLVMTypeOf(identity), ""); |
| 4140 | swap = ac_build_quad_swizzle(ctx, result, 1, 0, 3, 2); |
| 4141 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4142 | if (cluster_size == 2) return ac_build_wwm(ctx, result); |
| 4143 | |
| 4144 | swap = ac_build_quad_swizzle(ctx, result, 2, 3, 0, 1); |
| 4145 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4146 | if (cluster_size == 4) return ac_build_wwm(ctx, result); |
| 4147 | |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 4148 | if (ctx->chip_class >= GFX8) |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4149 | swap = ac_build_dpp(ctx, identity, result, dpp_row_half_mirror, 0xf, 0xf, false); |
| 4150 | else |
| 4151 | swap = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1f, 0, 0x04)); |
| 4152 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4153 | if (cluster_size == 8) return ac_build_wwm(ctx, result); |
| 4154 | |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 4155 | if (ctx->chip_class >= GFX8) |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4156 | swap = ac_build_dpp(ctx, identity, result, dpp_row_mirror, 0xf, 0xf, false); |
| 4157 | else |
| 4158 | swap = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1f, 0, 0x08)); |
| 4159 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4160 | if (cluster_size == 16) return ac_build_wwm(ctx, result); |
| 4161 | |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 4162 | if (ctx->chip_class >= GFX8 && cluster_size != 32) |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4163 | swap = ac_build_dpp(ctx, identity, result, dpp_row_bcast15, 0xa, 0xf, false); |
| 4164 | else |
| 4165 | swap = ac_build_ds_swizzle(ctx, result, ds_pattern_bitmode(0x1f, 0, 0x10)); |
| 4166 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4167 | if (cluster_size == 32) return ac_build_wwm(ctx, result); |
| 4168 | |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 4169 | if (ctx->chip_class >= GFX8) { |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4170 | swap = ac_build_dpp(ctx, identity, result, dpp_row_bcast31, 0xc, 0xf, false); |
| 4171 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4172 | result = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 63, 0)); |
| 4173 | return ac_build_wwm(ctx, result); |
| 4174 | } else { |
| 4175 | swap = ac_build_readlane(ctx, result, ctx->i32_0); |
| 4176 | result = ac_build_readlane(ctx, result, LLVMConstInt(ctx->i32, 32, 0)); |
| 4177 | result = ac_build_alu_op(ctx, result, swap, op); |
| 4178 | return ac_build_wwm(ctx, result); |
| 4179 | } |
| 4180 | } |
| 4181 | |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4182 | /** |
| 4183 | * "Top half" of a scan that reduces per-wave values across an entire |
| 4184 | * workgroup. |
| 4185 | * |
| 4186 | * The source value must be present in the highest lane of the wave, and the |
| 4187 | * highest lane must be live. |
| 4188 | */ |
| 4189 | void |
| 4190 | ac_build_wg_wavescan_top(struct ac_llvm_context *ctx, struct ac_wg_scan *ws) |
| 4191 | { |
| 4192 | if (ws->maxwaves <= 1) |
| 4193 | return; |
| 4194 | |
| 4195 | const LLVMValueRef i32_63 = LLVMConstInt(ctx->i32, 63, false); |
| 4196 | LLVMBuilderRef builder = ctx->builder; |
| 4197 | LLVMValueRef tid = ac_get_thread_id(ctx); |
| 4198 | LLVMValueRef tmp; |
| 4199 | |
| 4200 | tmp = LLVMBuildICmp(builder, LLVMIntEQ, tid, i32_63, ""); |
| 4201 | ac_build_ifcc(ctx, tmp, 1000); |
| 4202 | LLVMBuildStore(builder, ws->src, LLVMBuildGEP(builder, ws->scratch, &ws->waveidx, 1, "")); |
| 4203 | ac_build_endif(ctx, 1000); |
| 4204 | } |
| 4205 | |
| 4206 | /** |
| 4207 | * "Bottom half" of a scan that reduces per-wave values across an entire |
| 4208 | * workgroup. |
| 4209 | * |
| 4210 | * The caller must place a barrier between the top and bottom halves. |
| 4211 | */ |
| 4212 | void |
| 4213 | ac_build_wg_wavescan_bottom(struct ac_llvm_context *ctx, struct ac_wg_scan *ws) |
| 4214 | { |
| 4215 | const LLVMTypeRef type = LLVMTypeOf(ws->src); |
| 4216 | const LLVMValueRef identity = |
| 4217 | get_reduction_identity(ctx, ws->op, ac_get_type_size(type)); |
| 4218 | |
| 4219 | if (ws->maxwaves <= 1) { |
| 4220 | ws->result_reduce = ws->src; |
| 4221 | ws->result_inclusive = ws->src; |
| 4222 | ws->result_exclusive = identity; |
| 4223 | return; |
| 4224 | } |
| 4225 | assert(ws->maxwaves <= 32); |
| 4226 | |
| 4227 | LLVMBuilderRef builder = ctx->builder; |
| 4228 | LLVMValueRef tid = ac_get_thread_id(ctx); |
| 4229 | LLVMBasicBlockRef bbs[2]; |
| 4230 | LLVMValueRef phivalues_scan[2]; |
| 4231 | LLVMValueRef tmp, tmp2; |
| 4232 | |
| 4233 | bbs[0] = LLVMGetInsertBlock(builder); |
| 4234 | phivalues_scan[0] = LLVMGetUndef(type); |
| 4235 | |
| 4236 | if (ws->enable_reduce) |
| 4237 | tmp = LLVMBuildICmp(builder, LLVMIntULT, tid, ws->numwaves, ""); |
| 4238 | else if (ws->enable_inclusive) |
| 4239 | tmp = LLVMBuildICmp(builder, LLVMIntULE, tid, ws->waveidx, ""); |
| 4240 | else |
| 4241 | tmp = LLVMBuildICmp(builder, LLVMIntULT, tid, ws->waveidx, ""); |
| 4242 | ac_build_ifcc(ctx, tmp, 1001); |
| 4243 | { |
| 4244 | tmp = LLVMBuildLoad(builder, LLVMBuildGEP(builder, ws->scratch, &tid, 1, ""), ""); |
| 4245 | |
| 4246 | ac_build_optimization_barrier(ctx, &tmp); |
| 4247 | |
| 4248 | bbs[1] = LLVMGetInsertBlock(builder); |
| 4249 | phivalues_scan[1] = ac_build_scan(ctx, ws->op, tmp, identity, ws->maxwaves); |
| 4250 | } |
| 4251 | ac_build_endif(ctx, 1001); |
| 4252 | |
| 4253 | const LLVMValueRef scan = ac_build_phi(ctx, type, 2, phivalues_scan, bbs); |
| 4254 | |
| 4255 | if (ws->enable_reduce) { |
| 4256 | tmp = LLVMBuildSub(builder, ws->numwaves, ctx->i32_1, ""); |
| 4257 | ws->result_reduce = ac_build_readlane(ctx, scan, tmp); |
| 4258 | } |
| 4259 | if (ws->enable_inclusive) |
| 4260 | ws->result_inclusive = ac_build_readlane(ctx, scan, ws->waveidx); |
| 4261 | if (ws->enable_exclusive) { |
| 4262 | tmp = LLVMBuildSub(builder, ws->waveidx, ctx->i32_1, ""); |
| 4263 | tmp = ac_build_readlane(ctx, scan, tmp); |
| 4264 | tmp2 = LLVMBuildICmp(builder, LLVMIntEQ, ws->waveidx, ctx->i32_0, ""); |
| 4265 | ws->result_exclusive = LLVMBuildSelect(builder, tmp2, identity, tmp, ""); |
| 4266 | } |
| 4267 | } |
| 4268 | |
| 4269 | /** |
| 4270 | * Inclusive scan of a per-wave value across an entire workgroup. |
| 4271 | * |
| 4272 | * This implies an s_barrier instruction. |
| 4273 | * |
| 4274 | * Unlike ac_build_inclusive_scan, the caller \em must ensure that all threads |
| 4275 | * of the workgroup are live. (This requirement cannot easily be relaxed in a |
| 4276 | * useful manner because of the barrier in the algorithm.) |
| 4277 | */ |
| 4278 | void |
| 4279 | ac_build_wg_wavescan(struct ac_llvm_context *ctx, struct ac_wg_scan *ws) |
| 4280 | { |
| 4281 | ac_build_wg_wavescan_top(ctx, ws); |
| 4282 | ac_build_s_barrier(ctx); |
| 4283 | ac_build_wg_wavescan_bottom(ctx, ws); |
| 4284 | } |
| 4285 | |
| 4286 | /** |
| 4287 | * "Top half" of a scan that reduces per-thread values across an entire |
| 4288 | * workgroup. |
| 4289 | * |
| 4290 | * All lanes must be active when this code runs. |
| 4291 | */ |
| 4292 | void |
| 4293 | ac_build_wg_scan_top(struct ac_llvm_context *ctx, struct ac_wg_scan *ws) |
| 4294 | { |
| 4295 | if (ws->enable_exclusive) { |
| 4296 | ws->extra = ac_build_exclusive_scan(ctx, ws->src, ws->op); |
Nicolai Hähnle | 8efaffa | 2018-09-20 19:09:50 +0200 | [diff] [blame] | 4297 | if (LLVMTypeOf(ws->src) == ctx->i1 && ws->op == nir_op_iadd) |
| 4298 | ws->src = LLVMBuildZExt(ctx->builder, ws->src, ctx->i32, ""); |
Nicolai Hähnle | 300876a | 2018-05-23 22:09:27 +0200 | [diff] [blame] | 4299 | ws->src = ac_build_alu_op(ctx, ws->extra, ws->src, ws->op); |
| 4300 | } else { |
| 4301 | ws->src = ac_build_inclusive_scan(ctx, ws->src, ws->op); |
| 4302 | } |
| 4303 | |
| 4304 | bool enable_inclusive = ws->enable_inclusive; |
| 4305 | bool enable_exclusive = ws->enable_exclusive; |
| 4306 | ws->enable_inclusive = false; |
| 4307 | ws->enable_exclusive = ws->enable_exclusive || enable_inclusive; |
| 4308 | ac_build_wg_wavescan_top(ctx, ws); |
| 4309 | ws->enable_inclusive = enable_inclusive; |
| 4310 | ws->enable_exclusive = enable_exclusive; |
| 4311 | } |
| 4312 | |
| 4313 | /** |
| 4314 | * "Bottom half" of a scan that reduces per-thread values across an entire |
| 4315 | * workgroup. |
| 4316 | * |
| 4317 | * The caller must place a barrier between the top and bottom halves. |
| 4318 | */ |
| 4319 | void |
| 4320 | ac_build_wg_scan_bottom(struct ac_llvm_context *ctx, struct ac_wg_scan *ws) |
| 4321 | { |
| 4322 | bool enable_inclusive = ws->enable_inclusive; |
| 4323 | bool enable_exclusive = ws->enable_exclusive; |
| 4324 | ws->enable_inclusive = false; |
| 4325 | ws->enable_exclusive = ws->enable_exclusive || enable_inclusive; |
| 4326 | ac_build_wg_wavescan_bottom(ctx, ws); |
| 4327 | ws->enable_inclusive = enable_inclusive; |
| 4328 | ws->enable_exclusive = enable_exclusive; |
| 4329 | |
| 4330 | /* ws->result_reduce is already the correct value */ |
| 4331 | if (ws->enable_inclusive) |
Marek Olšák | c9b64b5 | 2019-05-22 18:23:27 -0400 | [diff] [blame] | 4332 | 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] | 4333 | if (ws->enable_exclusive) |
| 4334 | ws->result_exclusive = ac_build_alu_op(ctx, ws->result_exclusive, ws->extra, ws->op); |
| 4335 | } |
| 4336 | |
| 4337 | /** |
| 4338 | * A scan that reduces per-thread values across an entire workgroup. |
| 4339 | * |
| 4340 | * The caller must ensure that all lanes are active when this code runs |
| 4341 | * (WWM is insufficient!), because there is an implied barrier. |
| 4342 | */ |
| 4343 | void |
| 4344 | ac_build_wg_scan(struct ac_llvm_context *ctx, struct ac_wg_scan *ws) |
| 4345 | { |
| 4346 | ac_build_wg_scan_top(ctx, ws); |
| 4347 | ac_build_s_barrier(ctx); |
| 4348 | ac_build_wg_scan_bottom(ctx, ws); |
| 4349 | } |
| 4350 | |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4351 | LLVMValueRef |
| 4352 | ac_build_quad_swizzle(struct ac_llvm_context *ctx, LLVMValueRef src, |
| 4353 | unsigned lane0, unsigned lane1, unsigned lane2, unsigned lane3) |
| 4354 | { |
| 4355 | unsigned mask = dpp_quad_perm(lane0, lane1, lane2, lane3); |
Marek Olšák | ccfcb9d | 2019-05-14 22:16:20 -0400 | [diff] [blame] | 4356 | if (ctx->chip_class >= GFX8) { |
Daniel Schürmann | d5f7ebd | 2018-03-06 15:03:36 +0100 | [diff] [blame] | 4357 | return ac_build_dpp(ctx, src, src, mask, 0xf, 0xf, false); |
| 4358 | } else { |
| 4359 | return ac_build_ds_swizzle(ctx, src, (1 << 15) | mask); |
| 4360 | } |
| 4361 | } |
| 4362 | |
| 4363 | LLVMValueRef |
| 4364 | ac_build_shuffle(struct ac_llvm_context *ctx, LLVMValueRef src, LLVMValueRef index) |
| 4365 | { |
| 4366 | index = LLVMBuildMul(ctx->builder, index, LLVMConstInt(ctx->i32, 4, 0), ""); |
| 4367 | return ac_build_intrinsic(ctx, |
| 4368 | "llvm.amdgcn.ds.bpermute", ctx->i32, |
| 4369 | (LLVMValueRef []) {index, src}, 2, |
| 4370 | AC_FUNC_ATTR_READNONE | |
| 4371 | AC_FUNC_ATTR_CONVERGENT); |
| 4372 | } |
Samuel Pitoiset | 1bf9311 | 2019-03-21 15:47:04 +0100 | [diff] [blame] | 4373 | |
| 4374 | LLVMValueRef |
Samuel Pitoiset | 52c02d9 | 2019-03-22 11:59:32 +0100 | [diff] [blame] | 4375 | ac_build_frexp_exp(struct ac_llvm_context *ctx, LLVMValueRef src0, |
| 4376 | unsigned bitsize) |
| 4377 | { |
| 4378 | LLVMTypeRef type; |
| 4379 | char *intr; |
| 4380 | |
| 4381 | if (bitsize == 16) { |
| 4382 | intr = "llvm.amdgcn.frexp.exp.i16.f16"; |
| 4383 | type = ctx->i16; |
| 4384 | } else if (bitsize == 32) { |
| 4385 | intr = "llvm.amdgcn.frexp.exp.i32.f32"; |
| 4386 | type = ctx->i32; |
| 4387 | } else { |
| 4388 | intr = "llvm.amdgcn.frexp.exp.i32.f64"; |
Samuel Pitoiset | cc752de | 2019-03-29 08:39:43 +0100 | [diff] [blame] | 4389 | type = ctx->i32; |
Samuel Pitoiset | 52c02d9 | 2019-03-22 11:59:32 +0100 | [diff] [blame] | 4390 | } |
| 4391 | |
| 4392 | LLVMValueRef params[] = { |
| 4393 | src0, |
| 4394 | }; |
| 4395 | return ac_build_intrinsic(ctx, intr, type, params, 1, |
| 4396 | AC_FUNC_ATTR_READNONE); |
| 4397 | } |
| 4398 | LLVMValueRef |
Samuel Pitoiset | 1bf9311 | 2019-03-21 15:47:04 +0100 | [diff] [blame] | 4399 | ac_build_frexp_mant(struct ac_llvm_context *ctx, LLVMValueRef src0, |
| 4400 | unsigned bitsize) |
| 4401 | { |
| 4402 | LLVMTypeRef type; |
| 4403 | char *intr; |
| 4404 | |
| 4405 | if (bitsize == 16) { |
| 4406 | intr = "llvm.amdgcn.frexp.mant.f16"; |
| 4407 | type = ctx->f16; |
| 4408 | } else if (bitsize == 32) { |
| 4409 | intr = "llvm.amdgcn.frexp.mant.f32"; |
| 4410 | type = ctx->f32; |
| 4411 | } else { |
| 4412 | intr = "llvm.amdgcn.frexp.mant.f64"; |
| 4413 | type = ctx->f64; |
| 4414 | } |
| 4415 | |
| 4416 | LLVMValueRef params[] = { |
| 4417 | src0, |
| 4418 | }; |
| 4419 | return ac_build_intrinsic(ctx, intr, type, params, 1, |
| 4420 | AC_FUNC_ATTR_READNONE); |
| 4421 | } |
Samuel Pitoiset | 590a4c8 | 2019-04-10 17:16:50 +0200 | [diff] [blame] | 4422 | |
| 4423 | /* |
| 4424 | * this takes an I,J coordinate pair, |
| 4425 | * and works out the X and Y derivatives. |
| 4426 | * it returns DDX(I), DDX(J), DDY(I), DDY(J). |
| 4427 | */ |
| 4428 | LLVMValueRef |
| 4429 | ac_build_ddxy_interp(struct ac_llvm_context *ctx, LLVMValueRef interp_ij) |
| 4430 | { |
| 4431 | LLVMValueRef result[4], a; |
| 4432 | unsigned i; |
| 4433 | |
| 4434 | for (i = 0; i < 2; i++) { |
| 4435 | a = LLVMBuildExtractElement(ctx->builder, interp_ij, |
| 4436 | LLVMConstInt(ctx->i32, i, false), ""); |
| 4437 | result[i] = ac_build_ddxy(ctx, AC_TID_MASK_TOP_LEFT, 1, a); |
| 4438 | result[2+i] = ac_build_ddxy(ctx, AC_TID_MASK_TOP_LEFT, 2, a); |
| 4439 | } |
| 4440 | return ac_build_gather_values(ctx, result, 4); |
| 4441 | } |
Samuel Pitoiset | fd40419 | 2019-04-10 17:16:51 +0200 | [diff] [blame] | 4442 | |
| 4443 | LLVMValueRef |
| 4444 | ac_build_load_helper_invocation(struct ac_llvm_context *ctx) |
| 4445 | { |
| 4446 | LLVMValueRef result = ac_build_intrinsic(ctx, "llvm.amdgcn.ps.live", |
| 4447 | ctx->i1, NULL, 0, |
| 4448 | AC_FUNC_ATTR_READNONE); |
| 4449 | result = LLVMBuildNot(ctx->builder, result, ""); |
| 4450 | return LLVMBuildSExt(ctx->builder, result, ctx->i32, ""); |
| 4451 | } |