clang/lib/Basic/Targets/LoongArch.h

   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