clang/lib/Basic/Targets/PNaCl.h

   1 //===--- PNaCl.h - Declare PNaCl 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 PNaCl TargetInfo objects.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_PNACL_H
  14 #define LLVM_CLANG_LIB_BASIC_TARGETS_PNACL_H
  15
  16 #include "Mips.h"
  17 #include "clang/Basic/TargetInfo.h"
  18 #include "clang/Basic/TargetOptions.h"
  19 #include "llvm/Support/Compiler.h"
  20 #include "llvm/TargetParser/Triple.h"
  21
  22 namespace clang {
  23 namespace targets {
  24
  25 class LLVM_LIBRARY_VISIBILITY PNaClTargetInfo : public TargetInfo {
  26 public:
  27   PNaClTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
  28       : TargetInfo(Triple) {
  29     this->LongAlign = 32;
  30     this->LongWidth = 32;
  31     this->PointerAlign = 32;
  32     this->PointerWidth = 32;
  33     this->IntMaxType = TargetInfo::SignedLongLong;
  34     this->Int64Type = TargetInfo::SignedLongLong;
  35     this->DoubleAlign = 64;
  36     this->LongDoubleWidth = 64;
  37     this->LongDoubleAlign = 64;
  38     this->SizeType = TargetInfo::UnsignedInt;
  39     this->PtrDiffType = TargetInfo::SignedInt;
  40     this->IntPtrType = TargetInfo::SignedInt;
  41     this->RegParmMax = 0; // Disallow regparm
  42   }
  43
  44   void getArchDefines(const LangOptions &Opts, MacroBuilder &Builder) const;
  45
  46   void getTargetDefines(const LangOptions &Opts,
  47                         MacroBuilder &Builder) const override {
  48     getArchDefines(Opts, Builder);
  49   }
  50
  51   bool hasFeature(StringRef Feature) const override {
  52     return Feature == "pnacl";
  53   }
  54
  55   ArrayRef<Builtin::Info> getTargetBuiltins() const override {
  56     return std::nullopt;
  57   }
  58
  59   BuiltinVaListKind getBuiltinVaListKind() const override {
  60     return TargetInfo::PNaClABIBuiltinVaList;
  61   }
  62
  63   ArrayRef<const char *> getGCCRegNames() const override;
  64
  65   ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
  66
  67   bool validateAsmConstraint(const char *&Name,
  68                              TargetInfo::ConstraintInfo &Info) const override {
  69     return false;
  70   }
  71
  72   const char *getClobbers() const override { return ""; }
  73
  74   bool hasBitIntType() const override { return true; }
  75 };
  76
  77 // We attempt to use PNaCl (le32) frontend and Mips32EL backend.
  78 class LLVM_LIBRARY_VISIBILITY NaClMips32TargetInfo : public MipsTargetInfo {
  79 public:
  80   NaClMips32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
  81       : MipsTargetInfo(Triple, Opts) {}
  82
  83   BuiltinVaListKind getBuiltinVaListKind() const override {
  84     return TargetInfo::PNaClABIBuiltinVaList;
  85   }
  86 };
  87 } // namespace targets
  88 } // namespace clang
  89
  90 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_PNACL_H