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llvm-mirror/lib/Target/ARM/ARMInstrInfo.h
Hans Wennborg 9099fd3422 Re-commit r301040 "X86: Don't emit zero-byte functions on Windows"
In addition to the original commit, tighten the condition for when to
pad empty functions to COFF Windows.  This avoids running into problems
when targeting e.g. Win32 AMDGPU, which caused test failures when this
was committed initially.

llvm-svn: 301047
2017-04-21 21:48:41 +00:00

48 lines
1.5 KiB
C++

//===-- ARMInstrInfo.h - ARM Instruction Information ------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the ARM implementation of the TargetInstrInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_ARM_ARMINSTRINFO_H
#define LLVM_LIB_TARGET_ARM_ARMINSTRINFO_H
#include "ARMBaseInstrInfo.h"
#include "ARMRegisterInfo.h"
namespace llvm {
class ARMSubtarget;
class ARMInstrInfo : public ARMBaseInstrInfo {
ARMRegisterInfo RI;
public:
explicit ARMInstrInfo(const ARMSubtarget &STI);
/// Return the noop instruction to use for a noop.
void getNoop(MCInst &NopInst) const override;
// Return the non-pre/post incrementing version of 'Opc'. Return 0
// if there is not such an opcode.
unsigned getUnindexedOpcode(unsigned Opc) const override;
/// getRegisterInfo - TargetInstrInfo is a superset of MRegister info. As
/// such, whenever a client has an instance of instruction info, it should
/// always be able to get register info as well (through this method).
///
const ARMRegisterInfo &getRegisterInfo() const override { return RI; }
private:
void expandLoadStackGuard(MachineBasicBlock::iterator MI) const override;
};
}
#endif