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.getTargetTriple().isThumb(), support::little),
25         MRI(MRI), 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
41