clang/lib/Basic/Targets/Lanai.h

   1 //===--- Lanai.h - Declare Lanai 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 Lanai TargetInfo objects.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_LANAI_H
  14 #define LLVM_CLANG_LIB_BASIC_TARGETS_LANAI_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 LanaiTargetInfo : public TargetInfo {
  25   // Class for Lanai (32-bit).
  26   // The CPU profiles supported by the Lanai backend
  27   enum CPUKind {
  28     CK_NONE,
  29     CK_V11,
  30   } CPU;
  31
  32   static const TargetInfo::GCCRegAlias GCCRegAliases[];
  33   static const char *const GCCRegNames[];
  34
  35 public:
  36   LanaiTargetInfo(const llvm::Triple &Triple, const TargetOptions &)
  37       : TargetInfo(Triple) {
  38     // Description string has to be kept in sync with backend.
  39     resetDataLayout("E"        // Big endian
  40                     "-m:e"     // ELF name manging
  41                     "-p:32:32" // 32 bit pointers, 32 bit aligned
  42                     "-i64:64"  // 64 bit integers, 64 bit aligned
  43                     "-a:0:32"  // 32 bit alignment of objects of aggregate type
  44                     "-n32"     // 32 bit native integer width
  45                     "-S64"     // 64 bit natural stack alignment
  46     );
  47
  48     // Setting RegParmMax equal to what mregparm was set to in the old
  49     // toolchain
  50     RegParmMax = 4;
  51
  52     // Set the default CPU to V11
  53     CPU = CK_V11;
  54
  55     // Temporary approach to make everything at least word-aligned and allow for
  56     // safely casting between pointers with different alignment requirements.
  57     // TODO: Remove this when there are no more cast align warnings on the
  58     // firmware.
  59     MinGlobalAlign = 32;
  60   }
  61
  62   void getTargetDefines(const LangOptions &Opts,
  63                         MacroBuilder &Builder) const override;
  64
  65   bool isValidCPUName(StringRef Name) const override;
  66
  67   void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override;
  68
  69   bool setCPU(const std::string &Name) override;
  70
  71   bool hasFeature(StringRef Feature) const override;
  72
  73   ArrayRef<const char *> getGCCRegNames() const override;
  74
  75   ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
  76
  77   BuiltinVaListKind getBuiltinVaListKind() const override {
  78     return TargetInfo::VoidPtrBuiltinVaList;
  79   }
  80
  81   ArrayRef<Builtin::Info> getTargetBuiltins() const override {
  82     return std::nullopt;
  83   }
  84
  85   bool validateAsmConstraint(const char *&Name,
  86                              TargetInfo::ConstraintInfo &info) const override {
  87     return false;
  88   }
  89
  90   std::string_view getClobbers() const override { return ""; }
  91
  92   bool hasBitIntType() const override { return true; }
  93 };
  94 } // namespace targets
  95 } // namespace clang
  96
  97 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_LANAI_H