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/StringSwitch.h" 17 #include "llvm/ADT/Triple.h" 18 19 using namespace llvm; 20 using namespace AMDGPU; 21 22 namespace { 23 24 struct GPUInfo { 25 StringLiteral Name; 26 StringLiteral CanonicalName; 27 AMDGPU::GPUKind Kind; 28 unsigned Features; 29 }; 30 31 constexpr GPUInfo R600GPUs[] = { 32 // Name Canonical Kind Features 33 // Name 34 {{"r600"}, {"r600"}, GK_R600, FEATURE_NONE }, 35 {{"rv630"}, {"r600"}, GK_R600, FEATURE_NONE }, 36 {{"rv635"}, {"r600"}, GK_R600, FEATURE_NONE }, 37 {{"r630"}, {"r630"}, GK_R630, FEATURE_NONE }, 38 {{"rs780"}, {"rs880"}, GK_RS880, FEATURE_NONE }, 39 {{"rs880"}, {"rs880"}, GK_RS880, FEATURE_NONE }, 40 {{"rv610"}, {"rs880"}, GK_RS880, FEATURE_NONE }, 41 {{"rv620"}, {"rs880"}, GK_RS880, FEATURE_NONE }, 42 {{"rv670"}, {"rv670"}, GK_RV670, FEATURE_NONE }, 43 {{"rv710"}, {"rv710"}, GK_RV710, FEATURE_NONE }, 44 {{"rv730"}, {"rv730"}, GK_RV730, FEATURE_NONE }, 45 {{"rv740"}, {"rv770"}, GK_RV770, FEATURE_NONE }, 46 {{"rv770"}, {"rv770"}, GK_RV770, FEATURE_NONE }, 47 {{"cedar"}, {"cedar"}, GK_CEDAR, FEATURE_NONE }, 48 {{"palm"}, {"cedar"}, GK_CEDAR, FEATURE_NONE }, 49 {{"cypress"}, {"cypress"}, GK_CYPRESS, FEATURE_FMA }, 50 {{"hemlock"}, {"cypress"}, GK_CYPRESS, FEATURE_FMA }, 51 {{"juniper"}, {"juniper"}, GK_JUNIPER, FEATURE_NONE }, 52 {{"redwood"}, {"redwood"}, GK_REDWOOD, FEATURE_NONE }, 53 {{"sumo"}, {"sumo"}, GK_SUMO, FEATURE_NONE }, 54 {{"sumo2"}, {"sumo"}, GK_SUMO, FEATURE_NONE }, 55 {{"barts"}, {"barts"}, GK_BARTS, FEATURE_NONE }, 56 {{"caicos"}, {"caicos"}, GK_CAICOS, FEATURE_NONE }, 57 {{"aruba"}, {"cayman"}, GK_CAYMAN, FEATURE_FMA }, 58 {{"cayman"}, {"cayman"}, GK_CAYMAN, FEATURE_FMA }, 59 {{"turks"}, {"turks"}, GK_TURKS, FEATURE_NONE } 60 }; 61 62 // This table should be sorted by the value of GPUKind 63 // Don't bother listing the implicitly true features 64 constexpr GPUInfo AMDGCNGPUs[] = { 65 // Name Canonical Kind Features 66 // Name 67 {{"gfx600"}, {"gfx600"}, GK_GFX600, FEATURE_FAST_FMA_F32}, 68 {{"tahiti"}, {"gfx600"}, GK_GFX600, FEATURE_FAST_FMA_F32}, 69 {{"gfx601"}, {"gfx601"}, GK_GFX601, FEATURE_NONE}, 70 {{"pitcairn"}, {"gfx601"}, GK_GFX601, FEATURE_NONE}, 71 {{"verde"}, {"gfx601"}, GK_GFX601, FEATURE_NONE}, 72 {{"gfx602"}, {"gfx602"}, GK_GFX602, FEATURE_NONE}, 73 {{"hainan"}, {"gfx602"}, GK_GFX602, FEATURE_NONE}, 74 {{"oland"}, {"gfx602"}, GK_GFX602, FEATURE_NONE}, 75 {{"gfx700"}, {"gfx700"}, GK_GFX700, FEATURE_NONE}, 76 {{"kaveri"}, {"gfx700"}, GK_GFX700, FEATURE_NONE}, 77 {{"gfx701"}, {"gfx701"}, GK_GFX701, FEATURE_FAST_FMA_F32}, 78 {{"hawaii"}, {"gfx701"}, GK_GFX701, FEATURE_FAST_FMA_F32}, 79 {{"gfx702"}, {"gfx702"}, GK_GFX702, FEATURE_FAST_FMA_F32}, 80 {{"gfx703"}, {"gfx703"}, GK_GFX703, FEATURE_NONE}, 81 {{"kabini"}, {"gfx703"}, GK_GFX703, FEATURE_NONE}, 82 {{"mullins"}, {"gfx703"}, GK_GFX703, FEATURE_NONE}, 83 {{"gfx704"}, {"gfx704"}, GK_GFX704, FEATURE_NONE}, 84 {{"bonaire"}, {"gfx704"}, GK_GFX704, FEATURE_NONE}, 85 {{"gfx705"}, {"gfx705"}, GK_GFX705, 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}, 89 {{"iceland"}, {"gfx802"}, GK_GFX802, FEATURE_FAST_DENORMAL_F32}, 90 {{"tonga"}, {"gfx802"}, GK_GFX802, FEATURE_FAST_DENORMAL_F32}, 91 {{"gfx803"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32}, 92 {{"fiji"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32}, 93 {{"polaris10"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32}, 94 {{"polaris11"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32}, 95 {{"gfx805"}, {"gfx805"}, GK_GFX805, FEATURE_FAST_DENORMAL_F32}, 96 {{"tongapro"}, {"gfx805"}, GK_GFX805, FEATURE_FAST_DENORMAL_F32}, 97 {{"gfx810"}, {"gfx810"}, GK_GFX810, FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 98 {{"stoney"}, {"gfx810"}, GK_GFX810, FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 99 {{"gfx900"}, {"gfx900"}, GK_GFX900, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 100 {{"gfx902"}, {"gfx902"}, GK_GFX902, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 101 {{"gfx904"}, {"gfx904"}, GK_GFX904, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 102 {{"gfx906"}, {"gfx906"}, GK_GFX906, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK|FEATURE_SRAMECC}, 103 {{"gfx908"}, {"gfx908"}, GK_GFX908, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK|FEATURE_SRAMECC}, 104 {{"gfx909"}, {"gfx909"}, GK_GFX909, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 105 {{"gfx90a"}, {"gfx90a"}, GK_GFX90A, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK|FEATURE_SRAMECC}, 106 {{"gfx90c"}, {"gfx90c"}, GK_GFX90C, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK}, 107 {{"gfx940"}, {"gfx940"}, GK_GFX940, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK|FEATURE_SRAMECC}, 108 {{"gfx1010"}, {"gfx1010"}, GK_GFX1010, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32|FEATURE_XNACK}, 109 {{"gfx1011"}, {"gfx1011"}, GK_GFX1011, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32|FEATURE_XNACK}, 110 {{"gfx1012"}, {"gfx1012"}, GK_GFX1012, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32|FEATURE_XNACK}, 111 {{"gfx1013"}, {"gfx1013"}, GK_GFX1013, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32|FEATURE_XNACK}, 112 {{"gfx1030"}, {"gfx1030"}, GK_GFX1030, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32}, 113 {{"gfx1031"}, {"gfx1031"}, GK_GFX1031, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32}, 114 {{"gfx1032"}, {"gfx1032"}, GK_GFX1032, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32}, 115 {{"gfx1033"}, {"gfx1033"}, GK_GFX1033, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32}, 116 {{"gfx1034"}, {"gfx1034"}, GK_GFX1034, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32}, 117 {{"gfx1035"}, {"gfx1035"}, GK_GFX1035, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32}, 118 }; 119 120 const GPUInfo *getArchEntry(AMDGPU::GPUKind AK, ArrayRef<GPUInfo> Table) { 121 GPUInfo Search = { {""}, {""}, AK, AMDGPU::FEATURE_NONE }; 122 123 auto I = 124 llvm::lower_bound(Table, Search, [](const GPUInfo &A, const GPUInfo &B) { 125 return A.Kind < B.Kind; 126 }); 127 128 if (I == Table.end()) 129 return nullptr; 130 return I; 131 } 132 133 } // namespace 134 135 StringRef llvm::AMDGPU::getArchNameAMDGCN(GPUKind AK) { 136 if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs)) 137 return Entry->CanonicalName; 138 return ""; 139 } 140 141 StringRef llvm::AMDGPU::getArchNameR600(GPUKind AK) { 142 if (const auto *Entry = getArchEntry(AK, R600GPUs)) 143 return Entry->CanonicalName; 144 return ""; 145 } 146 147 AMDGPU::GPUKind llvm::AMDGPU::parseArchAMDGCN(StringRef CPU) { 148 for (const auto &C : AMDGCNGPUs) { 149 if (CPU == C.Name) 150 return C.Kind; 151 } 152 153 return AMDGPU::GPUKind::GK_NONE; 154 } 155 156 AMDGPU::GPUKind llvm::AMDGPU::parseArchR600(StringRef CPU) { 157 for (const auto &C : R600GPUs) { 158 if (CPU == C.Name) 159 return C.Kind; 160 } 161 162 return AMDGPU::GPUKind::GK_NONE; 163 } 164 165 unsigned AMDGPU::getArchAttrAMDGCN(GPUKind AK) { 166 if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs)) 167 return Entry->Features; 168 return FEATURE_NONE; 169 } 170 171 unsigned AMDGPU::getArchAttrR600(GPUKind AK) { 172 if (const auto *Entry = getArchEntry(AK, R600GPUs)) 173 return Entry->Features; 174 return FEATURE_NONE; 175 } 176 177 void AMDGPU::fillValidArchListAMDGCN(SmallVectorImpl<StringRef> &Values) { 178 // XXX: Should this only report unique canonical names? 179 for (const auto &C : AMDGCNGPUs) 180 Values.push_back(C.Name); 181 } 182 183 void AMDGPU::fillValidArchListR600(SmallVectorImpl<StringRef> &Values) { 184 for (const auto &C : R600GPUs) 185 Values.push_back(C.Name); 186 } 187 188 AMDGPU::IsaVersion AMDGPU::getIsaVersion(StringRef GPU) { 189 AMDGPU::GPUKind AK = parseArchAMDGCN(GPU); 190 if (AK == AMDGPU::GPUKind::GK_NONE) { 191 if (GPU == "generic-hsa") 192 return {7, 0, 0}; 193 if (GPU == "generic") 194 return {6, 0, 0}; 195 return {0, 0, 0}; 196 } 197 198 switch (AK) { 199 case GK_GFX600: return {6, 0, 0}; 200 case GK_GFX601: return {6, 0, 1}; 201 case GK_GFX602: return {6, 0, 2}; 202 case GK_GFX700: return {7, 0, 0}; 203 case GK_GFX701: return {7, 0, 1}; 204 case GK_GFX702: return {7, 0, 2}; 205 case GK_GFX703: return {7, 0, 3}; 206 case GK_GFX704: return {7, 0, 4}; 207 case GK_GFX705: return {7, 0, 5}; 208 case GK_GFX801: return {8, 0, 1}; 209 case GK_GFX802: return {8, 0, 2}; 210 case GK_GFX803: return {8, 0, 3}; 211 case GK_GFX805: return {8, 0, 5}; 212 case GK_GFX810: return {8, 1, 0}; 213 case GK_GFX900: return {9, 0, 0}; 214 case GK_GFX902: return {9, 0, 2}; 215 case GK_GFX904: return {9, 0, 4}; 216 case GK_GFX906: return {9, 0, 6}; 217 case GK_GFX908: return {9, 0, 8}; 218 case GK_GFX909: return {9, 0, 9}; 219 case GK_GFX90A: return {9, 0, 10}; 220 case GK_GFX90C: return {9, 0, 12}; 221 case GK_GFX940: return {9, 4, 0}; 222 case GK_GFX1010: return {10, 1, 0}; 223 case GK_GFX1011: return {10, 1, 1}; 224 case GK_GFX1012: return {10, 1, 2}; 225 case GK_GFX1013: return {10, 1, 3}; 226 case GK_GFX1030: return {10, 3, 0}; 227 case GK_GFX1031: return {10, 3, 1}; 228 case GK_GFX1032: return {10, 3, 2}; 229 case GK_GFX1033: return {10, 3, 3}; 230 case GK_GFX1034: return {10, 3, 4}; 231 case GK_GFX1035: return {10, 3, 5}; 232 default: return {0, 0, 0}; 233 } 234 } 235 236 StringRef AMDGPU::getCanonicalArchName(const Triple &T, StringRef Arch) { 237 assert(T.isAMDGPU()); 238 auto ProcKind = T.isAMDGCN() ? parseArchAMDGCN(Arch) : parseArchR600(Arch); 239 if (ProcKind == GK_NONE) 240 return StringRef(); 241 242 return T.isAMDGCN() ? getArchNameAMDGCN(ProcKind) : getArchNameR600(ProcKind); 243 } 244 245 namespace llvm { 246 namespace RISCV { 247 248 struct CPUInfo { 249 StringLiteral Name; 250 CPUKind Kind; 251 unsigned Features; 252 StringLiteral DefaultMarch; 253 bool is64Bit() const { return (Features & FK_64BIT); } 254 }; 255 256 constexpr CPUInfo RISCVCPUInfo[] = { 257 #define PROC(ENUM, NAME, FEATURES, DEFAULT_MARCH) \ 258 {NAME, CK_##ENUM, FEATURES, DEFAULT_MARCH}, 259 #include "llvm/Support/RISCVTargetParser.def" 260 }; 261 262 bool checkCPUKind(CPUKind Kind, bool IsRV64) { 263 if (Kind == CK_INVALID) 264 return false; 265 return RISCVCPUInfo[static_cast<unsigned>(Kind)].is64Bit() == IsRV64; 266 } 267 268 bool checkTuneCPUKind(CPUKind Kind, bool IsRV64) { 269 if (Kind == CK_INVALID) 270 return false; 271 return RISCVCPUInfo[static_cast<unsigned>(Kind)].is64Bit() == IsRV64; 272 } 273 274 CPUKind parseCPUKind(StringRef CPU) { 275 return llvm::StringSwitch<CPUKind>(CPU) 276 #define PROC(ENUM, NAME, FEATURES, DEFAULT_MARCH) .Case(NAME, CK_##ENUM) 277 #include "llvm/Support/RISCVTargetParser.def" 278 .Default(CK_INVALID); 279 } 280 281 StringRef resolveTuneCPUAlias(StringRef TuneCPU, bool IsRV64) { 282 return llvm::StringSwitch<StringRef>(TuneCPU) 283 #define PROC_ALIAS(NAME, RV32, RV64) .Case(NAME, IsRV64 ? StringRef(RV64) : StringRef(RV32)) 284 #include "llvm/Support/RISCVTargetParser.def" 285 .Default(TuneCPU); 286 } 287 288 CPUKind parseTuneCPUKind(StringRef TuneCPU, bool IsRV64) { 289 TuneCPU = resolveTuneCPUAlias(TuneCPU, IsRV64); 290 291 return llvm::StringSwitch<CPUKind>(TuneCPU) 292 #define PROC(ENUM, NAME, FEATURES, DEFAULT_MARCH) .Case(NAME, CK_##ENUM) 293 #include "llvm/Support/RISCVTargetParser.def" 294 .Default(CK_INVALID); 295 } 296 297 StringRef getMArchFromMcpu(StringRef CPU) { 298 CPUKind Kind = parseCPUKind(CPU); 299 return RISCVCPUInfo[static_cast<unsigned>(Kind)].DefaultMarch; 300 } 301 302 void fillValidCPUArchList(SmallVectorImpl<StringRef> &Values, bool IsRV64) { 303 for (const auto &C : RISCVCPUInfo) { 304 if (C.Kind != CK_INVALID && IsRV64 == C.is64Bit()) 305 Values.emplace_back(C.Name); 306 } 307 } 308 309 void fillValidTuneCPUArchList(SmallVectorImpl<StringRef> &Values, bool IsRV64) { 310 for (const auto &C : RISCVCPUInfo) { 311 if (C.Kind != CK_INVALID && IsRV64 == C.is64Bit()) 312 Values.emplace_back(C.Name); 313 } 314 #define PROC_ALIAS(NAME, RV32, RV64) Values.emplace_back(StringRef(NAME)); 315 #include "llvm/Support/RISCVTargetParser.def" 316 } 317 318 // Get all features except standard extension feature 319 bool getCPUFeaturesExceptStdExt(CPUKind Kind, 320 std::vector<StringRef> &Features) { 321 unsigned CPUFeatures = RISCVCPUInfo[static_cast<unsigned>(Kind)].Features; 322 323 if (CPUFeatures == FK_INVALID) 324 return false; 325 326 if (CPUFeatures & FK_64BIT) 327 Features.push_back("+64bit"); 328 else 329 Features.push_back("-64bit"); 330 331 return true; 332 } 333 334 } // namespace RISCV 335 } // namespace llvm 336 337 // Parse a branch protection specification, which has the form 338 // standard | none | [bti,pac-ret[+b-key,+leaf]*] 339 // Returns true on success, with individual elements of the specification 340 // returned in `PBP`. Returns false in error, with `Err` containing 341 // an erroneous part of the spec. 342 bool ARM::parseBranchProtection(StringRef Spec, ParsedBranchProtection &PBP, 343 StringRef &Err) { 344 PBP = {"none", "a_key", false}; 345 if (Spec == "none") 346 return true; // defaults are ok 347 348 if (Spec == "standard") { 349 PBP.Scope = "non-leaf"; 350 PBP.BranchTargetEnforcement = true; 351 return true; 352 } 353 354 SmallVector<StringRef, 4> Opts; 355 Spec.split(Opts, "+"); 356 for (int I = 0, E = Opts.size(); I != E; ++I) { 357 StringRef Opt = Opts[I].trim(); 358 if (Opt == "bti") { 359 PBP.BranchTargetEnforcement = true; 360 continue; 361 } 362 if (Opt == "pac-ret") { 363 PBP.Scope = "non-leaf"; 364 for (; I + 1 != E; ++I) { 365 StringRef PACOpt = Opts[I + 1].trim(); 366 if (PACOpt == "leaf") 367 PBP.Scope = "all"; 368 else if (PACOpt == "b-key") 369 PBP.Key = "b_key"; 370 else 371 break; 372 } 373 continue; 374 } 375 if (Opt == "") 376 Err = "<empty>"; 377 else 378 Err = Opt; 379 return false; 380 } 381 382 return true; 383 } 384