1 //===--- RISCV.h - Declare RISCV 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 RISCV TargetInfo objects. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_RISCV_H 14 #define LLVM_CLANG_LIB_BASIC_TARGETS_RISCV_H 15 16 #include "clang/Basic/TargetInfo.h" 17 #include "clang/Basic/TargetOptions.h" 18 #include "llvm/ADT/Triple.h" 19 #include "llvm/Support/Compiler.h" 20 21 namespace clang { 22 namespace targets { 23 24 // RISC-V Target 25 class RISCVTargetInfo : public TargetInfo { 26 protected: 27 std::string ABI, CPU; 28 bool HasM = false; 29 bool HasA = false; 30 bool HasF = false; 31 bool HasD = false; 32 bool HasC = false; 33 bool HasB = false; 34 bool HasV = false; 35 bool HasZba = false; 36 bool HasZbb = false; 37 bool HasZbc = false; 38 bool HasZbe = false; 39 bool HasZbf = false; 40 bool HasZbm = false; 41 bool HasZbp = false; 42 bool HasZbproposedc = false; 43 bool HasZbr = false; 44 bool HasZbs = false; 45 bool HasZbt = false; 46 bool HasZfh = false; 47 bool HasZvamo = false; 48 bool HasZvlsseg = false; 49 50 static const Builtin::Info BuiltinInfo[]; 51 52 public: 53 RISCVTargetInfo(const llvm::Triple &Triple, const TargetOptions &) 54 : TargetInfo(Triple) { 55 LongDoubleWidth = 128; 56 LongDoubleAlign = 128; 57 LongDoubleFormat = &llvm::APFloat::IEEEquad(); 58 SuitableAlign = 128; 59 WCharType = SignedInt; 60 WIntType = UnsignedInt; 61 HasRISCVVTypes = true; 62 MCountName = "_mcount"; 63 HasFloat16 = true; 64 } 65 66 bool setCPU(const std::string &Name) override { 67 if (!isValidCPUName(Name)) 68 return false; 69 CPU = Name; 70 return true; 71 } 72 73 StringRef getABI() const override { return ABI; } 74 void getTargetDefines(const LangOptions &Opts, 75 MacroBuilder &Builder) const override; 76 77 ArrayRef<Builtin::Info> getTargetBuiltins() const override; 78 79 BuiltinVaListKind getBuiltinVaListKind() const override { 80 return TargetInfo::VoidPtrBuiltinVaList; 81 } 82 83 const char *getClobbers() const override { return ""; } 84 85 ArrayRef<const char *> getGCCRegNames() const override; 86 87 int getEHDataRegisterNumber(unsigned RegNo) const override { 88 if (RegNo == 0) 89 return 10; 90 else if (RegNo == 1) 91 return 11; 92 else 93 return -1; 94 } 95 96 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override; 97 98 bool validateAsmConstraint(const char *&Name, 99 TargetInfo::ConstraintInfo &Info) const override; 100 101 std::string convertConstraint(const char *&Constraint) const override; 102 103 bool 104 initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, 105 StringRef CPU, 106 const std::vector<std::string> &FeaturesVec) const override; 107 108 bool hasFeature(StringRef Feature) const override; 109 110 bool handleTargetFeatures(std::vector<std::string> &Features, 111 DiagnosticsEngine &Diags) override; 112 113 bool hasExtIntType() const override { return true; } 114 }; 115 class LLVM_LIBRARY_VISIBILITY RISCV32TargetInfo : public RISCVTargetInfo { 116 public: 117 RISCV32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 118 : RISCVTargetInfo(Triple, Opts) { 119 IntPtrType = SignedInt; 120 PtrDiffType = SignedInt; 121 SizeType = UnsignedInt; 122 resetDataLayout("e-m:e-p:32:32-i64:64-n32-S128"); 123 } 124 125 bool setABI(const std::string &Name) override { 126 if (Name == "ilp32" || Name == "ilp32f" || Name == "ilp32d") { 127 ABI = Name; 128 return true; 129 } 130 return false; 131 } 132 133 bool isValidCPUName(StringRef Name) const override; 134 void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override; 135 bool isValidTuneCPUName(StringRef Name) const override; 136 void fillValidTuneCPUList(SmallVectorImpl<StringRef> &Values) const override; 137 138 void setMaxAtomicWidth() override { 139 MaxAtomicPromoteWidth = 128; 140 141 if (HasA) 142 MaxAtomicInlineWidth = 32; 143 } 144 }; 145 class LLVM_LIBRARY_VISIBILITY RISCV64TargetInfo : public RISCVTargetInfo { 146 public: 147 RISCV64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 148 : RISCVTargetInfo(Triple, Opts) { 149 LongWidth = LongAlign = PointerWidth = PointerAlign = 64; 150 IntMaxType = Int64Type = SignedLong; 151 resetDataLayout("e-m:e-p:64:64-i64:64-i128:128-n64-S128"); 152 } 153 154 bool setABI(const std::string &Name) override { 155 if (Name == "lp64" || Name == "lp64f" || Name == "lp64d") { 156 ABI = Name; 157 return true; 158 } 159 return false; 160 } 161 162 bool isValidCPUName(StringRef Name) const override; 163 void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override; 164 bool isValidTuneCPUName(StringRef Name) const override; 165 void fillValidTuneCPUList(SmallVectorImpl<StringRef> &Values) const override; 166 167 void setMaxAtomicWidth() override { 168 MaxAtomicPromoteWidth = 128; 169 170 if (HasA) 171 MaxAtomicInlineWidth = 64; 172 } 173 }; 174 } // namespace targets 175 } // namespace clang 176 177 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_RISCV_H 178