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//===-- Thumb1InstrInfo.h - Thumb-1 Instruction Information -----*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains the Thumb-1 implementation of the TargetInstrInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_ARM_THUMB1INSTRINFO_H
#define LLVM_LIB_TARGET_ARM_THUMB1INSTRINFO_H
#include "ARMBaseInstrInfo.h"
#include "ThumbRegisterInfo.h"
namespace llvm {
class ARMSubtarget;
class Thumb1InstrInfo : public ARMBaseInstrInfo {
ThumbRegisterInfo RI;
public:
explicit Thumb1InstrInfo(const ARMSubtarget &STI);
/// Return the noop instruction to use for a noop.
MCInst getNop() 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 ThumbRegisterInfo &getRegisterInfo() const override { return RI; }
void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
const DebugLoc &DL, MCRegister DestReg, MCRegister SrcReg,
bool KillSrc) const override;
void storeRegToStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI, Register SrcReg,
bool isKill, int FrameIndex,
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI,
Register VReg) const override;
void loadRegFromStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI, Register DestReg,
int FrameIndex, const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI,
Register VReg) const override;
bool canCopyGluedNodeDuringSchedule(SDNode *N) const override;
private:
void expandLoadStackGuard(MachineBasicBlock::iterator MI) const override;
};
}
#endif
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