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; 28 bool HasM; 29 bool HasA; 30 bool HasF; 31 bool HasD; 32 bool HasC; 33 bool HasB; 34 35 public: 36 RISCVTargetInfo(const llvm::Triple &Triple, const TargetOptions &) 37 : TargetInfo(Triple), HasM(false), HasA(false), HasF(false), 38 HasD(false), HasC(false), HasB(false) { 39 LongDoubleWidth = 128; 40 LongDoubleAlign = 128; 41 LongDoubleFormat = &llvm::APFloat::IEEEquad(); 42 SuitableAlign = 128; 43 WCharType = SignedInt; 44 WIntType = UnsignedInt; 45 } 46 47 StringRef getABI() const override { return ABI; } 48 void getTargetDefines(const LangOptions &Opts, 49 MacroBuilder &Builder) const override; 50 51 ArrayRef<Builtin::Info> getTargetBuiltins() const override { return None; } 52 53 BuiltinVaListKind getBuiltinVaListKind() const override { 54 return TargetInfo::VoidPtrBuiltinVaList; 55 } 56 57 const char *getClobbers() const override { return ""; } 58 59 ArrayRef<const char *> getGCCRegNames() const override; 60 61 int getEHDataRegisterNumber(unsigned RegNo) const override { 62 if (RegNo == 0) 63 return 10; 64 else if (RegNo == 1) 65 return 11; 66 else 67 return -1; 68 } 69 70 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override; 71 72 bool validateAsmConstraint(const char *&Name, 73 TargetInfo::ConstraintInfo &Info) const override; 74 75 bool hasFeature(StringRef Feature) const override; 76 77 bool handleTargetFeatures(std::vector<std::string> &Features, 78 DiagnosticsEngine &Diags) override; 79 80 bool hasExtIntType() const override { return true; } 81 }; 82 class LLVM_LIBRARY_VISIBILITY RISCV32TargetInfo : public RISCVTargetInfo { 83 public: 84 RISCV32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 85 : RISCVTargetInfo(Triple, Opts) { 86 IntPtrType = SignedInt; 87 PtrDiffType = SignedInt; 88 SizeType = UnsignedInt; 89 resetDataLayout("e-m:e-p:32:32-i64:64-n32-S128"); 90 } 91 92 bool setABI(const std::string &Name) override { 93 if (Name == "ilp32" || Name == "ilp32f" || Name == "ilp32d") { 94 ABI = Name; 95 return true; 96 } 97 return false; 98 } 99 100 void setMaxAtomicWidth() override { 101 MaxAtomicPromoteWidth = 128; 102 103 if (HasA) 104 MaxAtomicInlineWidth = 32; 105 } 106 }; 107 class LLVM_LIBRARY_VISIBILITY RISCV64TargetInfo : public RISCVTargetInfo { 108 public: 109 RISCV64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 110 : RISCVTargetInfo(Triple, Opts) { 111 LongWidth = LongAlign = PointerWidth = PointerAlign = 64; 112 IntMaxType = Int64Type = SignedLong; 113 resetDataLayout("e-m:e-p:64:64-i64:64-i128:128-n64-S128"); 114 } 115 116 bool setABI(const std::string &Name) override { 117 if (Name == "lp64" || Name == "lp64f" || Name == "lp64d") { 118 ABI = Name; 119 return true; 120 } 121 return false; 122 } 123 124 void setMaxAtomicWidth() override { 125 MaxAtomicPromoteWidth = 128; 126 127 if (HasA) 128 MaxAtomicInlineWidth = 64; 129 } 130 }; 131 } // namespace targets 132 } // namespace clang 133 134 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_RISCV_H 135