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108 lines
4.1 KiB
C++
108 lines
4.1 KiB
C++
//===-- SparcInstrInfo.h - Sparc 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 Sparc implementation of the TargetInstrInfo class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_SPARC_SPARCINSTRINFO_H
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#define LLVM_LIB_TARGET_SPARC_SPARCINSTRINFO_H
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#include "SparcRegisterInfo.h"
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#include "llvm/CodeGen/TargetInstrInfo.h"
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#define GET_INSTRINFO_HEADER
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#include "SparcGenInstrInfo.inc"
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namespace llvm {
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class SparcSubtarget;
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/// SPII - This namespace holds all of the target specific flags that
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/// instruction info tracks.
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///
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namespace SPII {
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enum {
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Pseudo = (1<<0),
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Load = (1<<1),
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Store = (1<<2),
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DelaySlot = (1<<3)
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};
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}
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class SparcInstrInfo : public SparcGenInstrInfo {
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const SparcRegisterInfo RI;
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const SparcSubtarget& Subtarget;
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virtual void anchor();
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public:
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explicit SparcInstrInfo(SparcSubtarget &ST);
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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 SparcRegisterInfo &getRegisterInfo() const { return RI; }
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/// isLoadFromStackSlot - If the specified machine instruction is a direct
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/// load from a stack slot, return the virtual or physical register number of
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/// the destination along with the FrameIndex of the loaded stack slot. If
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/// not, return 0. This predicate must return 0 if the instruction has
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/// any side effects other than loading from the stack slot.
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unsigned isLoadFromStackSlot(const MachineInstr &MI,
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int &FrameIndex) const override;
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/// isStoreToStackSlot - If the specified machine instruction is a direct
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/// store to a stack slot, return the virtual or physical register number of
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/// the source reg along with the FrameIndex of the loaded stack slot. If
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/// not, return 0. This predicate must return 0 if the instruction has
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/// any side effects other than storing to the stack slot.
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unsigned isStoreToStackSlot(const MachineInstr &MI,
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int &FrameIndex) 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 = false) 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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bool
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reverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const override;
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void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
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const DebugLoc &DL, unsigned DestReg, unsigned SrcReg,
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bool KillSrc) const override;
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void storeRegToStackSlot(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MBBI,
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unsigned SrcReg, bool isKill, int FrameIndex,
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const TargetRegisterClass *RC,
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const TargetRegisterInfo *TRI) const override;
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void loadRegFromStackSlot(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MBBI,
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unsigned DestReg, int FrameIndex,
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const TargetRegisterClass *RC,
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const TargetRegisterInfo *TRI) const override;
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unsigned getGlobalBaseReg(MachineFunction *MF) const;
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// Lower pseudo instructions after register allocation.
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bool expandPostRAPseudo(MachineInstr &MI) const override;
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};
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}
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#endif
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