1 //===-- TargetParser - Parser for target features ---------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file implements a target parser to recognise hardware features such as 10 // FPU/CPU/ARCH names as well as specific support such as HDIV, etc. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/Support/TargetParser.h" 15 #include "llvm/ADT/ArrayRef.h" 16 #include "llvm/ADT/SmallString.h" 17 #include "llvm/ADT/StringSwitch.h" 18 #include "llvm/ADT/Twine.h" 19 #include "llvm/Support/ARMBuildAttributes.h" 20 21 using namespace llvm; 22 using namespace AMDGPU; 23 24 namespace { 25 26 struct GPUInfo { 27 StringLiteral Name; 28 StringLiteral CanonicalName; 29 AMDGPU::GPUKind Kind; 30 unsigned Features; 31 }; 32 33 constexpr GPUInfo R600GPUs[26] = { 34 // Name Canonical Kind Features 35 // Name 36 {{"r600"}, {"r600"}, GK_R600, FEATURE_NONE }, 37 {{"rv630"}, {"r600"}, GK_R600, FEATURE_NONE }, 38 {{"rv635"}, {"r600"}, GK_R600, FEATURE_NONE }, 39 {{"r630"}, {"r630"}, GK_R630, FEATURE_NONE }, 40 {{"rs780"}, {"rs880"}, GK_RS880, FEATURE_NONE }, 41 {{"rs880"}, {"rs880"}, GK_RS880, FEATURE_NONE }, 42 {{"rv610"}, {"rs880"}, GK_RS880, FEATURE_NONE }, 43 {{"rv620"}, {"rs880"}, GK_RS880, FEATURE_NONE }, 44 {{"rv670"}, {"rv670"}, GK_RV670, FEATURE_NONE }, 45 {{"rv710"}, {"rv710"}, GK_RV710, FEATURE_NONE }, 46 {{"rv730"}, {"rv730"}, GK_RV730, FEATURE_NONE }, 47 {{"rv740"}, {"rv770"}, GK_RV770, FEATURE_NONE }, 48 {{"rv770"}, {"rv770"}, GK_RV770, FEATURE_NONE }, 49 {{"cedar"}, {"cedar"}, GK_CEDAR, FEATURE_NONE }, 50 {{"palm"}, {"cedar"}, GK_CEDAR, FEATURE_NONE }, 51 {{"cypress"}, {"cypress"}, GK_CYPRESS, FEATURE_FMA }, 52 {{"hemlock"}, {"cypress"}, GK_CYPRESS, FEATURE_FMA }, 53 {{"juniper"}, {"juniper"}, GK_JUNIPER, FEATURE_NONE }, 54 {{"redwood"}, {"redwood"}, GK_REDWOOD, FEATURE_NONE }, 55 {{"sumo"}, {"sumo"}, GK_SUMO, FEATURE_NONE }, 56 {{"sumo2"}, {"sumo"}, GK_SUMO, FEATURE_NONE }, 57 {{"barts"}, {"barts"}, GK_BARTS, FEATURE_NONE }, 58 {{"caicos"}, {"caicos"}, GK_CAICOS, FEATURE_NONE }, 59 {{"aruba"}, {"cayman"}, GK_CAYMAN, FEATURE_FMA }, 60 {{"cayman"}, {"cayman"}, GK_CAYMAN, FEATURE_FMA }, 61 {{"turks"}, {"turks"}, GK_TURKS, FEATURE_NONE } 62 }; 63 64 // This table should be sorted by the value of GPUKind 65 // Don't bother listing the implicitly true features 66 constexpr GPUInfo AMDGCNGPUs[39] = { 67 // Name Canonical Kind Features 68 // Name 69 {{"gfx600"}, {"gfx600"}, GK_GFX600, FEATURE_FAST_FMA_F32}, 70 {{"tahiti"}, {"gfx600"}, GK_GFX600, FEATURE_FAST_FMA_F32}, 71 {{"gfx601"}, {"gfx601"}, GK_GFX601, FEATURE_NONE}, 72 {{"hainan"}, {"gfx601"}, GK_GFX601, FEATURE_NONE}, 73 {{"oland"}, {"gfx601"}, GK_GFX601, FEATURE_NONE}, 74 {{"pitcairn"}, {"gfx601"}, GK_GFX601, FEATURE_NONE}, 75 {{"verde"}, {"gfx601"}, GK_GFX601, FEATURE_NONE}, 76 {{"gfx700"}, {"gfx700"}, GK_GFX700, FEATURE_NONE}, 77 {{"kaveri"}, {"gfx700"}, GK_GFX700, FEATURE_NONE}, 78 {{"gfx701"}, {"gfx701"}, GK_GFX701, FEATURE_FAST_FMA_F32}, 79 {{"hawaii"}, {"gfx701"}, GK_GFX701, FEATURE_FAST_FMA_F32}, 80 {{"gfx702"}, {"gfx702"}, GK_GFX702, FEATURE_FAST_FMA_F32}, 81 {{"gfx703"}, {"gfx703"}, GK_GFX703, FEATURE_NONE}, 82 {{"kabini"}, {"gfx703"}, GK_GFX703, FEATURE_NONE}, 83 {{"mullins"}, {"gfx703"}, GK_GFX703, FEATURE_NONE}, 84 {{"gfx704"}, {"gfx704"}, GK_GFX704, FEATURE_NONE}, 85 {{"bonaire"}, {"gfx704"}, GK_GFX704, FEATURE_NONE}, 86 {{"gfx801"}, {"gfx801"}, GK_GFX801, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 87 {{"carrizo"}, {"gfx801"}, GK_GFX801, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 88 {{"gfx802"}, {"gfx802"}, GK_GFX802, FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 89 {{"iceland"}, {"gfx802"}, GK_GFX802, FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 90 {{"tonga"}, {"gfx802"}, GK_GFX802, FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 91 {{"gfx803"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 92 {{"fiji"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 93 {{"polaris10"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 94 {{"polaris11"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 95 {{"gfx810"}, {"gfx810"}, GK_GFX810, FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 96 {{"stoney"}, {"gfx810"}, GK_GFX810, FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 97 {{"gfx900"}, {"gfx900"}, GK_GFX900, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 98 {{"gfx902"}, {"gfx902"}, GK_GFX902, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 99 {{"gfx904"}, {"gfx904"}, GK_GFX904, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 100 {{"gfx906"}, {"gfx906"}, GK_GFX906, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK|FEATURE_SRAM_ECC}, 101 {{"gfx908"}, {"gfx908"}, GK_GFX908, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK|FEATURE_SRAM_ECC}, 102 {{"gfx909"}, {"gfx909"}, GK_GFX909, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 103 {{"gfx1010"}, {"gfx1010"}, GK_GFX1010, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32|FEATURE_XNACK}, 104 {{"gfx1011"}, {"gfx1011"}, GK_GFX1011, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32|FEATURE_XNACK}, 105 {{"gfx1012"}, {"gfx1012"}, GK_GFX1012, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32|FEATURE_XNACK}, 106 {{"gfx1030"}, {"gfx1030"}, GK_GFX1030, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32}, 107 {{"gfx1031"}, {"gfx1031"}, GK_GFX1031, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32}, 108 }; 109 110 const GPUInfo *getArchEntry(AMDGPU::GPUKind AK, ArrayRef<GPUInfo> Table) { 111 GPUInfo Search = { {""}, {""}, AK, AMDGPU::FEATURE_NONE }; 112 113 auto I = std::lower_bound(Table.begin(), Table.end(), Search, 114 [](const GPUInfo &A, const GPUInfo &B) { 115 return A.Kind < B.Kind; 116 }); 117 118 if (I == Table.end()) 119 return nullptr; 120 return I; 121 } 122 123 } // namespace 124 125 StringRef llvm::AMDGPU::getArchNameAMDGCN(GPUKind AK) { 126 if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs)) 127 return Entry->CanonicalName; 128 return ""; 129 } 130 131 StringRef llvm::AMDGPU::getArchNameR600(GPUKind AK) { 132 if (const auto *Entry = getArchEntry(AK, R600GPUs)) 133 return Entry->CanonicalName; 134 return ""; 135 } 136 137 AMDGPU::GPUKind llvm::AMDGPU::parseArchAMDGCN(StringRef CPU) { 138 for (const auto &C : AMDGCNGPUs) { 139 if (CPU == C.Name) 140 return C.Kind; 141 } 142 143 return AMDGPU::GPUKind::GK_NONE; 144 } 145 146 AMDGPU::GPUKind llvm::AMDGPU::parseArchR600(StringRef CPU) { 147 for (const auto &C : R600GPUs) { 148 if (CPU == C.Name) 149 return C.Kind; 150 } 151 152 return AMDGPU::GPUKind::GK_NONE; 153 } 154 155 unsigned AMDGPU::getArchAttrAMDGCN(GPUKind AK) { 156 if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs)) 157 return Entry->Features; 158 return FEATURE_NONE; 159 } 160 161 unsigned AMDGPU::getArchAttrR600(GPUKind AK) { 162 if (const auto *Entry = getArchEntry(AK, R600GPUs)) 163 return Entry->Features; 164 return FEATURE_NONE; 165 } 166 167 void AMDGPU::fillValidArchListAMDGCN(SmallVectorImpl<StringRef> &Values) { 168 // XXX: Should this only report unique canonical names? 169 for (const auto &C : AMDGCNGPUs) 170 Values.push_back(C.Name); 171 } 172 173 void AMDGPU::fillValidArchListR600(SmallVectorImpl<StringRef> &Values) { 174 for (const auto &C : R600GPUs) 175 Values.push_back(C.Name); 176 } 177 178 AMDGPU::IsaVersion AMDGPU::getIsaVersion(StringRef GPU) { 179 AMDGPU::GPUKind AK = parseArchAMDGCN(GPU); 180 if (AK == AMDGPU::GPUKind::GK_NONE) { 181 if (GPU == "generic-hsa") 182 return {7, 0, 0}; 183 if (GPU == "generic") 184 return {6, 0, 0}; 185 return {0, 0, 0}; 186 } 187 188 switch (AK) { 189 case GK_GFX600: return {6, 0, 0}; 190 case GK_GFX601: return {6, 0, 1}; 191 case GK_GFX700: return {7, 0, 0}; 192 case GK_GFX701: return {7, 0, 1}; 193 case GK_GFX702: return {7, 0, 2}; 194 case GK_GFX703: return {7, 0, 3}; 195 case GK_GFX704: return {7, 0, 4}; 196 case GK_GFX801: return {8, 0, 1}; 197 case GK_GFX802: return {8, 0, 2}; 198 case GK_GFX803: return {8, 0, 3}; 199 case GK_GFX810: return {8, 1, 0}; 200 case GK_GFX900: return {9, 0, 0}; 201 case GK_GFX902: return {9, 0, 2}; 202 case GK_GFX904: return {9, 0, 4}; 203 case GK_GFX906: return {9, 0, 6}; 204 case GK_GFX908: return {9, 0, 8}; 205 case GK_GFX909: return {9, 0, 9}; 206 case GK_GFX1010: return {10, 1, 0}; 207 case GK_GFX1011: return {10, 1, 1}; 208 case GK_GFX1012: return {10, 1, 2}; 209 case GK_GFX1030: return {10, 3, 0}; 210 case GK_GFX1031: return {10, 3, 1}; 211 default: return {0, 0, 0}; 212 } 213 } 214 215 StringRef AMDGPU::getCanonicalArchName(const Triple &T, StringRef Arch) { 216 assert(T.isAMDGPU()); 217 auto ProcKind = T.isAMDGCN() ? parseArchAMDGCN(Arch) : parseArchR600(Arch); 218 if (ProcKind == GK_NONE) 219 return StringRef(); 220 221 return T.isAMDGCN() ? getArchNameAMDGCN(ProcKind) : getArchNameR600(ProcKind); 222 } 223 224 namespace llvm { 225 namespace RISCV { 226 227 struct CPUInfo { 228 StringLiteral Name; 229 CPUKind Kind; 230 unsigned Features; 231 StringLiteral DefaultMarch; 232 bool is64Bit() const { return (Features & FK_64BIT); } 233 }; 234 235 constexpr CPUInfo RISCVCPUInfo[] = { 236 #define PROC(ENUM, NAME, FEATURES, DEFAULT_MARCH) \ 237 {NAME, CK_##ENUM, FEATURES, DEFAULT_MARCH}, 238 #include "llvm/Support/RISCVTargetParser.def" 239 }; 240 241 bool checkCPUKind(CPUKind Kind, bool IsRV64) { 242 if (Kind == CK_INVALID) 243 return false; 244 return RISCVCPUInfo[static_cast<unsigned>(Kind)].is64Bit() == IsRV64; 245 } 246 247 CPUKind parseCPUKind(StringRef CPU) { 248 return llvm::StringSwitch<CPUKind>(CPU) 249 #define PROC(ENUM, NAME, FEATURES, DEFAULT_MARCH) .Case(NAME, CK_##ENUM) 250 #include "llvm/Support/RISCVTargetParser.def" 251 .Default(CK_INVALID); 252 } 253 254 StringRef getMArchFromMcpu(StringRef CPU) { 255 CPUKind Kind = parseCPUKind(CPU); 256 return RISCVCPUInfo[static_cast<unsigned>(Kind)].DefaultMarch; 257 } 258 259 void fillValidCPUArchList(SmallVectorImpl<StringRef> &Values, bool IsRV64) { 260 for (const auto &C : RISCVCPUInfo) { 261 if (C.Kind != CK_INVALID && IsRV64 == C.is64Bit()) 262 Values.emplace_back(C.Name); 263 } 264 } 265 266 // Get all features except standard extension feature 267 bool getCPUFeaturesExceptStdExt(CPUKind Kind, 268 std::vector<StringRef> &Features) { 269 unsigned CPUFeatures = RISCVCPUInfo[static_cast<unsigned>(Kind)].Features; 270 271 if (CPUFeatures == FK_INVALID) 272 return false; 273 274 if (CPUFeatures & FK_64BIT) 275 Features.push_back("+64bit"); 276 else 277 Features.push_back("-64bit"); 278 279 return true; 280 } 281 282 } // namespace RISCV 283 } // namespace llvm 284