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/MCObjectWriter.h"
  15
  16 namespace llvm {
  17 class ARMAsmBackendDarwin : public ARMAsmBackend {
  18   const MCRegisterInfo &MRI;
  19   Triple TT;
  20 public:
  21   const MachO::CPUSubTypeARM Subtype;
  22   ARMAsmBackendDarwin(const Target &T, const MCSubtargetInfo &STI,
  23                       const MCRegisterInfo &MRI)
  24       : ARMAsmBackend(T, STI, support::little), MRI(MRI),
  25         TT(STI.getTargetTriple()),
  26         Subtype((MachO::CPUSubTypeARM)cantFail(
  27             MachO::getCPUSubType(STI.getTargetTriple()))) {}
  28
  29   std::unique_ptr<MCObjectTargetWriter>
  30   createObjectTargetWriter() const override {
  31     return createARMMachObjectWriter(
  32         /*Is64Bit=*/false, cantFail(MachO::getCPUType(TT)), Subtype);
  33   }
  34
  35   uint32_t generateCompactUnwindEncoding(
  36       ArrayRef<MCCFIInstruction> Instrs) const override;
  37 };
  38 } // end namespace llvm
  39
  40 #endif