b01c006f73
The renamable flag is useful during MachineCopyPropagation but renamable flag will be dropped after lowerCopy in some case. This patch introduces extra arguments to pass the renamable flag to copyPhysReg.
82 lines
3.2 KiB
C++
82 lines
3.2 KiB
C++
//===-- MSP430InstrInfo.h - MSP430 Instruction Information ------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the MSP430 implementation of the TargetInstrInfo class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_MSP430_MSP430INSTRINFO_H
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#define LLVM_LIB_TARGET_MSP430_MSP430INSTRINFO_H
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#include "MSP430RegisterInfo.h"
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#include "llvm/CodeGen/TargetInstrInfo.h"
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#define GET_INSTRINFO_HEADER
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#include "MSP430GenInstrInfo.inc"
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namespace llvm {
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class MSP430Subtarget;
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class MSP430InstrInfo : public MSP430GenInstrInfo {
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const MSP430RegisterInfo RI;
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virtual void anchor();
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public:
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explicit MSP430InstrInfo(MSP430Subtarget &STI);
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/// getRegisterInfo - TargetInstrInfo is a superset of MRegister info. As
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/// such, whenever a client has an instance of instruction info, it should
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/// always be able to get register info as well (through this method).
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///
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const MSP430RegisterInfo &getRegisterInfo() const { return RI; }
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void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
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const DebugLoc &DL, MCRegister DestReg, MCRegister SrcReg,
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bool KillSrc, bool RenamableDest = false,
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bool RenamableSrc = false) const override;
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void storeRegToStackSlot(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MI, Register SrcReg,
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bool isKill, int FrameIndex,
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const TargetRegisterClass *RC,
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const TargetRegisterInfo *TRI,
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Register VReg) const override;
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void loadRegFromStackSlot(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MI, Register DestReg,
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int FrameIdx, const TargetRegisterClass *RC,
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const TargetRegisterInfo *TRI,
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Register VReg) const override;
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unsigned getInstSizeInBytes(const MachineInstr &MI) const override;
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// Branch folding goodness
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bool
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reverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const override;
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bool analyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB,
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MachineBasicBlock *&FBB,
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SmallVectorImpl<MachineOperand> &Cond,
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bool AllowModify) const override;
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unsigned removeBranch(MachineBasicBlock &MBB,
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int *BytesRemoved = nullptr) const override;
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unsigned insertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
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MachineBasicBlock *FBB, ArrayRef<MachineOperand> Cond,
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const DebugLoc &DL,
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int *BytesAdded = nullptr) const override;
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int64_t getFramePoppedByCallee(const MachineInstr &I) const {
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assert(isFrameInstr(I) && "Not a frame instruction");
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assert(I.getOperand(1).getImm() >= 0 && "Size must not be negative");
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return I.getOperand(1).getImm();
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}
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};
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}
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#endif
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