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   bool HasFeatureFrecipe;
  33   bool HasFeatureLAM_BH;
  34   bool HasFeatureLAMCAS;
  35   bool HasFeatureLD_SEQ_SA;
  36   bool HasFeatureDiv32;
  37
  38 public:
  39   LoongArchTargetInfo(const llvm::Triple &Triple, const TargetOptions &)
  40       : TargetInfo(Triple) {
  41     HasFeatureD = false;
  42     HasFeatureF = false;
  43     HasFeatureLSX = false;
  44     HasFeatureLASX = false;
  45     HasFeatureFrecipe = false;
  46     HasFeatureLAM_BH = false;
  47     HasFeatureLAMCAS = false;
  48     HasFeatureLD_SEQ_SA = false;
  49     HasFeatureDiv32 = false;
  50     LongDoubleWidth = 128;
  51     LongDoubleAlign = 128;
  52     LongDoubleFormat = &llvm::APFloat::IEEEquad();
  53     MCountName = "_mcount";
  54     SuitableAlign = 128;
  55     WCharType = SignedInt;
  56     WIntType = UnsignedInt;
  57   }
  58
  59   bool setCPU(const std::string &Name) override {
  60     if (!isValidCPUName(Name))
  61       return false;
  62     CPU = Name;
  63     return true;
  64   }
  65
  66   StringRef getCPU() const { return CPU; }
  67
  68   StringRef getABI() const override { return ABI; }
  69
  70   void getTargetDefines(const LangOptions &Opts,
  71                         MacroBuilder &Builder) const override;
  72
  73   ArrayRef<Builtin::Info> getTargetBuiltins() const override;
  74
  75   BuiltinVaListKind getBuiltinVaListKind() const override {
  76     return TargetInfo::VoidPtrBuiltinVaList;
  77   }
  78
  79   std::string_view getClobbers() const override { return ""; }
  80
  81   ArrayRef<const char *> getGCCRegNames() const override;
  82
  83   int getEHDataRegisterNumber(unsigned RegNo) const override {
  84     if (RegNo == 0)
  85       return 4;
  86     if (RegNo == 1)
  87       return 5;
  88     return -1;
  89   }
  90
  91   ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
  92
  93   bool validateAsmConstraint(const char *&Name,
  94                              TargetInfo::ConstraintInfo &Info) const override;
  95   std::string convertConstraint(const char *&Constraint) const override;
  96
  97   bool hasBitIntType() const override { return true; }
  98
  99   bool handleTargetFeatures(std::vector<std::string> &Features,
 100                             DiagnosticsEngine &Diags) override;
 101
 102   bool
 103   initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags,
 104                  StringRef CPU,
 105                  const std::vector<std::string> &FeaturesVec) const override;
 106
 107   bool hasFeature(StringRef Feature) const override;
 108
 109   bool isValidCPUName(StringRef Name) const override;
 110   void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override;
 111 };
 112
 113 class LLVM_LIBRARY_VISIBILITY LoongArch32TargetInfo
 114     : public LoongArchTargetInfo {
 115 public:
 116   LoongArch32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
 117       : LoongArchTargetInfo(Triple, Opts) {
 118     IntPtrType = SignedInt;
 119     PtrDiffType = SignedInt;
 120     SizeType = UnsignedInt;
 121     resetDataLayout("e-m:e-p:32:32-i64:64-n32-S128");
 122     // TODO: select appropriate ABI.
 123     setABI("ilp32d");
 124   }
 125
 126   bool setABI(const std::string &Name) override {
 127     if (Name == "ilp32d" || Name == "ilp32f" || Name == "ilp32s") {
 128       ABI = Name;
 129       return true;
 130     }
 131     return false;
 132   }
 133   void setMaxAtomicWidth() override {
 134     MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 32;
 135   }
 136 };
 137
 138 class LLVM_LIBRARY_VISIBILITY LoongArch64TargetInfo
 139     : public LoongArchTargetInfo {
 140 public:
 141   LoongArch64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
 142       : LoongArchTargetInfo(Triple, Opts) {
 143     LongWidth = LongAlign = PointerWidth = PointerAlign = 64;
 144     IntMaxType = Int64Type = SignedLong;
 145     HasUnalignedAccess = true;
 146     resetDataLayout("e-m:e-p:64:64-i64:64-i128:128-n32:64-S128");
 147     // TODO: select appropriate ABI.
 148     setABI("lp64d");
 149   }
 150
 151   bool setABI(const std::string &Name) override {
 152     if (Name == "lp64d" || Name == "lp64f" || Name == "lp64s") {
 153       ABI = Name;
 154       return true;
 155     }
 156     return false;
 157   }
 158   void setMaxAtomicWidth() override {
 159     MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64;
 160   }
 161 };
 162 } // end namespace targets
 163 } // end namespace clang
 164
 165 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_LOONGARCH_H