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