46db78b743
After D41349, we can now directly access MCSubtargetInfo from createARM*AsmBackend. This patch makes use of this, avoiding the need to create a fresh MCSubtargetInfo (which was previously always done with a blank CPU and feature string). Given the total size of the change remains pretty tiny and we're removing the old explicit destructor, I changed the STI field to a reference rather than a pointer. Differential Revision: https://reviews.llvm.org/D41693 llvm-svn: 321707
39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
//===-- ARMAsmBackendDarwin.h ARM Asm Backend Darwin ----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_ARM_ARMASMBACKENDDARWIN_H
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#define LLVM_LIB_TARGET_ARM_ARMASMBACKENDDARWIN_H
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#include "ARMAsmBackend.h"
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#include "llvm/BinaryFormat/MachO.h"
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#include "llvm/MC/MCObjectWriter.h"
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namespace llvm {
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class ARMAsmBackendDarwin : public ARMAsmBackend {
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const MCRegisterInfo &MRI;
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public:
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const MachO::CPUSubTypeARM Subtype;
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ARMAsmBackendDarwin(const Target &T, const MCSubtargetInfo &STI,
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const MCRegisterInfo &MRI, MachO::CPUSubTypeARM st)
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: ARMAsmBackend(T, STI, /* IsLittleEndian */ true), MRI(MRI),
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Subtype(st) {}
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std::unique_ptr<MCObjectWriter>
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createObjectWriter(raw_pwrite_stream &OS) const override {
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return createARMMachObjectWriter(OS, /*Is64Bit=*/false, MachO::CPU_TYPE_ARM,
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Subtype);
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}
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uint32_t generateCompactUnwindEncoding(
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ArrayRef<MCCFIInstruction> Instrs) const override;
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};
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} // end namespace llvm
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#endif
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