| //===--- AMDGPU.cpp - Implement AMDGPU target feature support -------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements AMDGPU TargetInfo objects. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "AMDGPU.h" |
| #include "clang/Basic/Builtins.h" |
| #include "clang/Basic/CodeGenOptions.h" |
| #include "clang/Basic/LangOptions.h" |
| #include "clang/Basic/MacroBuilder.h" |
| #include "clang/Basic/TargetBuiltins.h" |
| #include "llvm/ADT/StringSwitch.h" |
| #include "llvm/IR/DataLayout.h" |
| |
| using namespace clang; |
| using namespace clang::targets; |
| |
| namespace clang { |
| namespace targets { |
| |
| // If you edit the description strings, make sure you update |
| // getPointerWidthV(). |
| |
| static const char *const DataLayoutStringR600 = |
| "e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128" |
| "-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5"; |
| |
| static const char *const DataLayoutStringAMDGCN = |
| "e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32" |
| "-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128" |
| "-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5" |
| "-ni:7"; |
| |
| const LangASMap AMDGPUTargetInfo::AMDGPUDefIsGenMap = { |
| Generic, // Default |
| Global, // opencl_global |
| Local, // opencl_local |
| Constant, // opencl_constant |
| Private, // opencl_private |
| Generic, // opencl_generic |
| Global, // cuda_device |
| Constant, // cuda_constant |
| Local // cuda_shared |
| }; |
| |
| const LangASMap AMDGPUTargetInfo::AMDGPUDefIsPrivMap = { |
| Private, // Default |
| Global, // opencl_global |
| Local, // opencl_local |
| Constant, // opencl_constant |
| Private, // opencl_private |
| Generic, // opencl_generic |
| Global, // cuda_device |
| Constant, // cuda_constant |
| Local // cuda_shared |
| }; |
| } // namespace targets |
| } // namespace clang |
| |
| const Builtin::Info AMDGPUTargetInfo::BuiltinInfo[] = { |
| #define BUILTIN(ID, TYPE, ATTRS) \ |
| {#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, nullptr}, |
| #define TARGET_BUILTIN(ID, TYPE, ATTRS, FEATURE) \ |
| {#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, FEATURE}, |
| #include "clang/Basic/BuiltinsAMDGPU.def" |
| }; |
| |
| const char *const AMDGPUTargetInfo::GCCRegNames[] = { |
| "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", |
| "v9", "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17", |
| "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25", "v26", |
| "v27", "v28", "v29", "v30", "v31", "v32", "v33", "v34", "v35", |
| "v36", "v37", "v38", "v39", "v40", "v41", "v42", "v43", "v44", |
| "v45", "v46", "v47", "v48", "v49", "v50", "v51", "v52", "v53", |
| "v54", "v55", "v56", "v57", "v58", "v59", "v60", "v61", "v62", |
| "v63", "v64", "v65", "v66", "v67", "v68", "v69", "v70", "v71", |
| "v72", "v73", "v74", "v75", "v76", "v77", "v78", "v79", "v80", |
| "v81", "v82", "v83", "v84", "v85", "v86", "v87", "v88", "v89", |
| "v90", "v91", "v92", "v93", "v94", "v95", "v96", "v97", "v98", |
| "v99", "v100", "v101", "v102", "v103", "v104", "v105", "v106", "v107", |
| "v108", "v109", "v110", "v111", "v112", "v113", "v114", "v115", "v116", |
| "v117", "v118", "v119", "v120", "v121", "v122", "v123", "v124", "v125", |
| "v126", "v127", "v128", "v129", "v130", "v131", "v132", "v133", "v134", |
| "v135", "v136", "v137", "v138", "v139", "v140", "v141", "v142", "v143", |
| "v144", "v145", "v146", "v147", "v148", "v149", "v150", "v151", "v152", |
| "v153", "v154", "v155", "v156", "v157", "v158", "v159", "v160", "v161", |
| "v162", "v163", "v164", "v165", "v166", "v167", "v168", "v169", "v170", |
| "v171", "v172", "v173", "v174", "v175", "v176", "v177", "v178", "v179", |
| "v180", "v181", "v182", "v183", "v184", "v185", "v186", "v187", "v188", |
| "v189", "v190", "v191", "v192", "v193", "v194", "v195", "v196", "v197", |
| "v198", "v199", "v200", "v201", "v202", "v203", "v204", "v205", "v206", |
| "v207", "v208", "v209", "v210", "v211", "v212", "v213", "v214", "v215", |
| "v216", "v217", "v218", "v219", "v220", "v221", "v222", "v223", "v224", |
| "v225", "v226", "v227", "v228", "v229", "v230", "v231", "v232", "v233", |
| "v234", "v235", "v236", "v237", "v238", "v239", "v240", "v241", "v242", |
| "v243", "v244", "v245", "v246", "v247", "v248", "v249", "v250", "v251", |
| "v252", "v253", "v254", "v255", "s0", "s1", "s2", "s3", "s4", |
| "s5", "s6", "s7", "s8", "s9", "s10", "s11", "s12", "s13", |
| "s14", "s15", "s16", "s17", "s18", "s19", "s20", "s21", "s22", |
| "s23", "s24", "s25", "s26", "s27", "s28", "s29", "s30", "s31", |
| "s32", "s33", "s34", "s35", "s36", "s37", "s38", "s39", "s40", |
| "s41", "s42", "s43", "s44", "s45", "s46", "s47", "s48", "s49", |
| "s50", "s51", "s52", "s53", "s54", "s55", "s56", "s57", "s58", |
| "s59", "s60", "s61", "s62", "s63", "s64", "s65", "s66", "s67", |
| "s68", "s69", "s70", "s71", "s72", "s73", "s74", "s75", "s76", |
| "s77", "s78", "s79", "s80", "s81", "s82", "s83", "s84", "s85", |
| "s86", "s87", "s88", "s89", "s90", "s91", "s92", "s93", "s94", |
| "s95", "s96", "s97", "s98", "s99", "s100", "s101", "s102", "s103", |
| "s104", "s105", "s106", "s107", "s108", "s109", "s110", "s111", "s112", |
| "s113", "s114", "s115", "s116", "s117", "s118", "s119", "s120", "s121", |
| "s122", "s123", "s124", "s125", "s126", "s127", "exec", "vcc", "scc", |
| "m0", "flat_scratch", "exec_lo", "exec_hi", "vcc_lo", "vcc_hi", |
| "flat_scratch_lo", "flat_scratch_hi" |
| }; |
| |
| ArrayRef<const char *> AMDGPUTargetInfo::getGCCRegNames() const { |
| return llvm::makeArrayRef(GCCRegNames); |
| } |
| |
| bool AMDGPUTargetInfo::initFeatureMap( |
| llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, StringRef CPU, |
| const std::vector<std::string> &FeatureVec) const { |
| |
| using namespace llvm::AMDGPU; |
| |
| // XXX - What does the member GPU mean if device name string passed here? |
| if (isAMDGCN(getTriple())) { |
| switch (llvm::AMDGPU::parseArchAMDGCN(CPU)) { |
| case GK_GFX1012: |
| case GK_GFX1011: |
| Features["dot1-insts"] = true; |
| Features["dot2-insts"] = true; |
| Features["dot5-insts"] = true; |
| Features["dot6-insts"] = true; |
| LLVM_FALLTHROUGH; |
| case GK_GFX1010: |
| Features["dl-insts"] = true; |
| Features["ci-insts"] = true; |
| Features["flat-address-space"] = true; |
| Features["16-bit-insts"] = true; |
| Features["dpp"] = true; |
| Features["gfx8-insts"] = true; |
| Features["gfx9-insts"] = true; |
| Features["gfx10-insts"] = true; |
| Features["s-memrealtime"] = true; |
| break; |
| case GK_GFX908: |
| Features["dot3-insts"] = true; |
| Features["dot4-insts"] = true; |
| Features["dot5-insts"] = true; |
| Features["dot6-insts"] = true; |
| LLVM_FALLTHROUGH; |
| case GK_GFX906: |
| Features["dl-insts"] = true; |
| Features["dot1-insts"] = true; |
| Features["dot2-insts"] = true; |
| LLVM_FALLTHROUGH; |
| case GK_GFX909: |
| case GK_GFX904: |
| case GK_GFX902: |
| case GK_GFX900: |
| Features["gfx9-insts"] = true; |
| LLVM_FALLTHROUGH; |
| case GK_GFX810: |
| case GK_GFX803: |
| case GK_GFX802: |
| case GK_GFX801: |
| Features["gfx8-insts"] = true; |
| Features["16-bit-insts"] = true; |
| Features["dpp"] = true; |
| Features["s-memrealtime"] = true; |
| LLVM_FALLTHROUGH; |
| case GK_GFX704: |
| case GK_GFX703: |
| case GK_GFX702: |
| case GK_GFX701: |
| case GK_GFX700: |
| Features["ci-insts"] = true; |
| Features["flat-address-space"] = true; |
| LLVM_FALLTHROUGH; |
| case GK_GFX601: |
| case GK_GFX600: |
| break; |
| case GK_NONE: |
| break; |
| default: |
| llvm_unreachable("Unhandled GPU!"); |
| } |
| } else { |
| if (CPU.empty()) |
| CPU = "r600"; |
| |
| switch (llvm::AMDGPU::parseArchR600(CPU)) { |
| case GK_CAYMAN: |
| case GK_CYPRESS: |
| case GK_RV770: |
| case GK_RV670: |
| // TODO: Add fp64 when implemented. |
| break; |
| case GK_TURKS: |
| case GK_CAICOS: |
| case GK_BARTS: |
| case GK_SUMO: |
| case GK_REDWOOD: |
| case GK_JUNIPER: |
| case GK_CEDAR: |
| case GK_RV730: |
| case GK_RV710: |
| case GK_RS880: |
| case GK_R630: |
| case GK_R600: |
| break; |
| default: |
| llvm_unreachable("Unhandled GPU!"); |
| } |
| } |
| |
| return TargetInfo::initFeatureMap(Features, Diags, CPU, FeatureVec); |
| } |
| |
| void AMDGPUTargetInfo::adjustTargetOptions(const CodeGenOptions &CGOpts, |
| TargetOptions &TargetOpts) const { |
| bool hasFP32Denormals = false; |
| bool hasFP64Denormals = false; |
| |
| for (auto &I : TargetOpts.FeaturesAsWritten) { |
| if (I == "+fp32-denormals" || I == "-fp32-denormals") |
| hasFP32Denormals = true; |
| if (I == "+fp64-fp16-denormals" || I == "-fp64-fp16-denormals") |
| hasFP64Denormals = true; |
| } |
| if (!hasFP32Denormals) |
| TargetOpts.Features.push_back( |
| (Twine(hasFastFMAF() && hasFullRateDenormalsF32() && !CGOpts.FlushDenorm |
| ? '+' : '-') + Twine("fp32-denormals")) |
| .str()); |
| // Always do not flush fp64 or fp16 denorms. |
| if (!hasFP64Denormals && hasFP64()) |
| TargetOpts.Features.push_back("+fp64-fp16-denormals"); |
| } |
| |
| void AMDGPUTargetInfo::fillValidCPUList( |
| SmallVectorImpl<StringRef> &Values) const { |
| if (isAMDGCN(getTriple())) |
| llvm::AMDGPU::fillValidArchListAMDGCN(Values); |
| else |
| llvm::AMDGPU::fillValidArchListR600(Values); |
| } |
| |
| void AMDGPUTargetInfo::setAddressSpaceMap(bool DefaultIsPrivate) { |
| AddrSpaceMap = DefaultIsPrivate ? &AMDGPUDefIsPrivMap : &AMDGPUDefIsGenMap; |
| } |
| |
| AMDGPUTargetInfo::AMDGPUTargetInfo(const llvm::Triple &Triple, |
| const TargetOptions &Opts) |
| : TargetInfo(Triple), |
| GPUKind(isAMDGCN(Triple) ? |
| llvm::AMDGPU::parseArchAMDGCN(Opts.CPU) : |
| llvm::AMDGPU::parseArchR600(Opts.CPU)), |
| GPUFeatures(isAMDGCN(Triple) ? |
| llvm::AMDGPU::getArchAttrAMDGCN(GPUKind) : |
| llvm::AMDGPU::getArchAttrR600(GPUKind)) { |
| resetDataLayout(isAMDGCN(getTriple()) ? DataLayoutStringAMDGCN |
| : DataLayoutStringR600); |
| assert(DataLayout->getAllocaAddrSpace() == Private); |
| |
| setAddressSpaceMap(Triple.getOS() == llvm::Triple::Mesa3D || |
| !isAMDGCN(Triple)); |
| UseAddrSpaceMapMangling = true; |
| |
| HasLegalHalfType = true; |
| HasFloat16 = true; |
| |
| // Set pointer width and alignment for target address space 0. |
| PointerWidth = PointerAlign = DataLayout->getPointerSizeInBits(); |
| if (getMaxPointerWidth() == 64) { |
| LongWidth = LongAlign = 64; |
| SizeType = UnsignedLong; |
| PtrDiffType = SignedLong; |
| IntPtrType = SignedLong; |
| } |
| |
| MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64; |
| } |
| |
| void AMDGPUTargetInfo::adjust(LangOptions &Opts) { |
| TargetInfo::adjust(Opts); |
| // ToDo: There are still a few places using default address space as private |
| // address space in OpenCL, which needs to be cleaned up, then Opts.OpenCL |
| // can be removed from the following line. |
| setAddressSpaceMap(/*DefaultIsPrivate=*/Opts.OpenCL || |
| !isAMDGCN(getTriple())); |
| } |
| |
| ArrayRef<Builtin::Info> AMDGPUTargetInfo::getTargetBuiltins() const { |
| return llvm::makeArrayRef(BuiltinInfo, clang::AMDGPU::LastTSBuiltin - |
| Builtin::FirstTSBuiltin); |
| } |
| |
| void AMDGPUTargetInfo::getTargetDefines(const LangOptions &Opts, |
| MacroBuilder &Builder) const { |
| Builder.defineMacro("__AMD__"); |
| Builder.defineMacro("__AMDGPU__"); |
| |
| if (isAMDGCN(getTriple())) |
| Builder.defineMacro("__AMDGCN__"); |
| else |
| Builder.defineMacro("__R600__"); |
| |
| if (GPUKind != llvm::AMDGPU::GK_NONE) { |
| StringRef CanonName = isAMDGCN(getTriple()) ? |
| getArchNameAMDGCN(GPUKind) : getArchNameR600(GPUKind); |
| Builder.defineMacro(Twine("__") + Twine(CanonName) + Twine("__")); |
| } |
| |
| // TODO: __HAS_FMAF__, __HAS_LDEXPF__, __HAS_FP64__ are deprecated and will be |
| // removed in the near future. |
| if (hasFMAF()) |
| Builder.defineMacro("__HAS_FMAF__"); |
| if (hasFastFMAF()) |
| Builder.defineMacro("FP_FAST_FMAF"); |
| if (hasLDEXPF()) |
| Builder.defineMacro("__HAS_LDEXPF__"); |
| if (hasFP64()) |
| Builder.defineMacro("__HAS_FP64__"); |
| if (hasFastFMA()) |
| Builder.defineMacro("FP_FAST_FMA"); |
| } |
| |
| void AMDGPUTargetInfo::setAuxTarget(const TargetInfo *Aux) { |
| assert(HalfFormat == Aux->HalfFormat); |
| assert(FloatFormat == Aux->FloatFormat); |
| assert(DoubleFormat == Aux->DoubleFormat); |
| |
| // On x86_64 long double is 80-bit extended precision format, which is |
| // not supported by AMDGPU. 128-bit floating point format is also not |
| // supported by AMDGPU. Therefore keep its own format for these two types. |
| auto SaveLongDoubleFormat = LongDoubleFormat; |
| auto SaveFloat128Format = Float128Format; |
| copyAuxTarget(Aux); |
| LongDoubleFormat = SaveLongDoubleFormat; |
| Float128Format = SaveFloat128Format; |
| } |
