1 //===-- LoongArch.h - Declare LoongArch target feature support --*- 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 declares LoongArch TargetInfo objects. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_LOONGARCH_H 14 #define LLVM_CLANG_LIB_BASIC_TARGETS_LOONGARCH_H 15 16 #include "clang/Basic/TargetInfo.h" 17 #include "clang/Basic/TargetOptions.h" 18 #include "llvm/Support/Compiler.h" 19 #include "llvm/TargetParser/Triple.h" 20 21 namespace clang { 22 namespace targets { 23 24 class LLVM_LIBRARY_VISIBILITY LoongArchTargetInfo : public TargetInfo { 25 protected: 26 std::string ABI; 27 std::string CPU; 28 bool HasFeatureD; 29 bool HasFeatureF; 30 bool HasFeatureLSX; 31 bool HasFeatureLASX; 32 bool HasFeatureFrecipe; 33 bool HasFeatureLAM_BH; 34 bool HasFeatureLAMCAS; 35 bool HasFeatureLD_SEQ_SA; 36 bool HasFeatureDiv32; 37 bool HasFeatureSCQ; 38 39 public: 40 LoongArchTargetInfo(const llvm::Triple &Triple, const TargetOptions &) 41 : TargetInfo(Triple) { 42 HasFeatureD = false; 43 HasFeatureF = false; 44 HasFeatureLSX = false; 45 HasFeatureLASX = false; 46 HasFeatureFrecipe = false; 47 HasFeatureLAM_BH = false; 48 HasFeatureLAMCAS = false; 49 HasFeatureLD_SEQ_SA = false; 50 HasFeatureDiv32 = false; 51 HasFeatureSCQ = false; 52 LongDoubleWidth = 128; 53 LongDoubleAlign = 128; 54 LongDoubleFormat = &llvm::APFloat::IEEEquad(); 55 MCountName = "_mcount"; 56 SuitableAlign = 128; 57 WCharType = SignedInt; 58 WIntType = UnsignedInt; 59 } 60 61 bool setCPU(const std::string &Name) override { 62 if (!isValidCPUName(Name)) 63 return false; 64 CPU = Name; 65 return true; 66 } 67 68 StringRef getCPU() const { return CPU; } 69 70 StringRef getABI() const override { return ABI; } 71 72 void getTargetDefines(const LangOptions &Opts, 73 MacroBuilder &Builder) const override; 74 75 ArrayRef<Builtin::Info> getTargetBuiltins() const override; 76 77 BuiltinVaListKind getBuiltinVaListKind() const override { 78 return TargetInfo::VoidPtrBuiltinVaList; 79 } 80 81 std::string_view getClobbers() const override { return ""; } 82 83 ArrayRef<const char *> getGCCRegNames() const override; 84 85 int getEHDataRegisterNumber(unsigned RegNo) const override { 86 if (RegNo == 0) 87 return 4; 88 if (RegNo == 1) 89 return 5; 90 return -1; 91 } 92 93 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override; 94 95 bool validateAsmConstraint(const char *&Name, 96 TargetInfo::ConstraintInfo &Info) const override; 97 std::string convertConstraint(const char *&Constraint) const override; 98 99 bool hasBitIntType() const override { return true; } 100 101 bool handleTargetFeatures(std::vector<std::string> &Features, 102 DiagnosticsEngine &Diags) override; 103 104 bool 105 initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, 106 StringRef CPU, 107 const std::vector<std::string> &FeaturesVec) const override; 108 109 bool hasFeature(StringRef Feature) const override; 110 111 bool isValidCPUName(StringRef Name) const override; 112 void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override; 113 }; 114 115 class LLVM_LIBRARY_VISIBILITY LoongArch32TargetInfo 116 : public LoongArchTargetInfo { 117 public: 118 LoongArch32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 119 : LoongArchTargetInfo(Triple, Opts) { 120 IntPtrType = SignedInt; 121 PtrDiffType = SignedInt; 122 SizeType = UnsignedInt; 123 resetDataLayout("e-m:e-p:32:32-i64:64-n32-S128"); 124 // TODO: select appropriate ABI. 125 setABI("ilp32d"); 126 } 127 128 bool setABI(const std::string &Name) override { 129 if (Name == "ilp32d" || Name == "ilp32f" || Name == "ilp32s") { 130 ABI = Name; 131 return true; 132 } 133 return false; 134 } 135 void setMaxAtomicWidth() override { 136 MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 32; 137 } 138 }; 139 140 class LLVM_LIBRARY_VISIBILITY LoongArch64TargetInfo 141 : public LoongArchTargetInfo { 142 public: 143 LoongArch64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 144 : LoongArchTargetInfo(Triple, Opts) { 145 LongWidth = LongAlign = PointerWidth = PointerAlign = 64; 146 IntMaxType = Int64Type = SignedLong; 147 HasUnalignedAccess = true; 148 resetDataLayout("e-m:e-p:64:64-i64:64-i128:128-n32:64-S128"); 149 // TODO: select appropriate ABI. 150 setABI("lp64d"); 151 } 152 153 bool setABI(const std::string &Name) override { 154 if (Name == "lp64d" || Name == "lp64f" || Name == "lp64s") { 155 ABI = Name; 156 return true; 157 } 158 return false; 159 } 160 void setMaxAtomicWidth() override { 161 MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64; 162 } 163 }; 164 } // end namespace targets 165 } // end namespace clang 166 167 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_LOONGARCH_H 168