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 41