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