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 33 public: 34 LoongArchTargetInfo(const llvm::Triple &Triple, const TargetOptions &) 35 : TargetInfo(Triple) { 36 HasFeatureD = false; 37 HasFeatureF = false; 38 HasFeatureLSX = false; 39 HasFeatureLASX = false; 40 LongDoubleWidth = 128; 41 LongDoubleAlign = 128; 42 LongDoubleFormat = &llvm::APFloat::IEEEquad(); 43 MCountName = "_mcount"; 44 SuitableAlign = 128; 45 WCharType = SignedInt; 46 WIntType = UnsignedInt; 47 } 48 49 bool setCPU(const std::string &Name) override { 50 if (!isValidCPUName(Name)) 51 return false; 52 CPU = Name; 53 return true; 54 } 55 56 StringRef getCPU() const { return CPU; } 57 58 StringRef getABI() const override { return ABI; } 59 60 void getTargetDefines(const LangOptions &Opts, 61 MacroBuilder &Builder) const override; 62 63 ArrayRef<Builtin::Info> getTargetBuiltins() const override; 64 65 BuiltinVaListKind getBuiltinVaListKind() const override { 66 return TargetInfo::VoidPtrBuiltinVaList; 67 } 68 69 std::string_view getClobbers() const override { return ""; } 70 71 ArrayRef<const char *> getGCCRegNames() const override; 72 73 int getEHDataRegisterNumber(unsigned RegNo) const override { 74 if (RegNo == 0) 75 return 4; 76 if (RegNo == 1) 77 return 5; 78 return -1; 79 } 80 81 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override; 82 83 bool validateAsmConstraint(const char *&Name, 84 TargetInfo::ConstraintInfo &Info) const override; 85 std::string convertConstraint(const char *&Constraint) const override; 86 87 bool hasBitIntType() const override { return true; } 88 89 bool handleTargetFeatures(std::vector<std::string> &Features, 90 DiagnosticsEngine &Diags) override; 91 92 bool 93 initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, 94 StringRef CPU, 95 const std::vector<std::string> &FeaturesVec) const override; 96 97 bool hasFeature(StringRef Feature) const override; 98 99 bool isValidCPUName(StringRef Name) const override; 100 void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override; 101 }; 102 103 class LLVM_LIBRARY_VISIBILITY LoongArch32TargetInfo 104 : public LoongArchTargetInfo { 105 public: 106 LoongArch32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 107 : LoongArchTargetInfo(Triple, Opts) { 108 IntPtrType = SignedInt; 109 PtrDiffType = SignedInt; 110 SizeType = UnsignedInt; 111 resetDataLayout("e-m:e-p:32:32-i64:64-n32-S128"); 112 // TODO: select appropriate ABI. 113 setABI("ilp32d"); 114 } 115 116 bool setABI(const std::string &Name) override { 117 if (Name == "ilp32d" || Name == "ilp32f" || Name == "ilp32s") { 118 ABI = Name; 119 return true; 120 } 121 return false; 122 } 123 void setMaxAtomicWidth() override { 124 MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 32; 125 } 126 }; 127 128 class LLVM_LIBRARY_VISIBILITY LoongArch64TargetInfo 129 : public LoongArchTargetInfo { 130 public: 131 LoongArch64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 132 : LoongArchTargetInfo(Triple, Opts) { 133 LongWidth = LongAlign = PointerWidth = PointerAlign = 64; 134 IntMaxType = Int64Type = SignedLong; 135 resetDataLayout("e-m:e-p:64:64-i64:64-i128:128-n64-S128"); 136 // TODO: select appropriate ABI. 137 setABI("lp64d"); 138 } 139 140 bool setABI(const std::string &Name) override { 141 if (Name == "lp64d" || Name == "lp64f" || Name == "lp64s") { 142 ABI = Name; 143 return true; 144 } 145 return false; 146 } 147 void setMaxAtomicWidth() override { 148 MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64; 149 } 150 }; 151 } // end namespace targets 152 } // end namespace clang 153 154 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_LOONGARCH_H 155