llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackendDarwin.h

   1 //===-- ARMAsmBackendDarwin.h   ARM Asm Backend Darwin ----------*- 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 #ifndef LLVM_LIB_TARGET_ARM_ARMASMBACKENDDARWIN_H
  10 #define LLVM_LIB_TARGET_ARM_ARMASMBACKENDDARWIN_H
  11
  12 #include "ARMAsmBackend.h"
  13 #include "llvm/BinaryFormat/MachO.h"
  14 #include "llvm/MC/MCContext.h"
  15 #include "llvm/MC/MCObjectWriter.h"
  16
  17 namespace llvm {
  18 class ARMAsmBackendDarwin : public ARMAsmBackend {
  19   const MCRegisterInfo &MRI;
  20   Triple TT;
  21 public:
  22   const MachO::CPUSubTypeARM Subtype;
  23   ARMAsmBackendDarwin(const Target &T, const MCSubtargetInfo &STI,
  24                       const MCRegisterInfo &MRI)
  25       : ARMAsmBackend(T, STI.getTargetTriple().isThumb(),
  26                       llvm::endianness::little),
  27         MRI(MRI), TT(STI.getTargetTriple()),
  28         Subtype((MachO::CPUSubTypeARM)cantFail(
  29             MachO::getCPUSubType(STI.getTargetTriple()))) {}
  30
  31   std::unique_ptr<MCObjectTargetWriter>
  32   createObjectTargetWriter() const override {
  33     return createARMMachObjectWriter(
  34         /*Is64Bit=*/false, cantFail(MachO::getCPUType(TT)), Subtype);
  35   }
  36
  37   uint64_t generateCompactUnwindEncoding(const MCDwarfFrameInfo *FI,
  38                                          const MCContext *Ctxt) const override;
  39 };
  40 } // end namespace llvm
  41
  42 #endif