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//===-- MipsSEInstrInfo.h - Mips32/64 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 Mips32/64 implementation of the TargetInstrInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef MIPSSEINSTRUCTIONINFO_H
#define MIPSSEINSTRUCTIONINFO_H
#include "MipsInstrInfo.h"
#include "MipsSERegisterInfo.h"
namespace llvm {
class MipsSEInstrInfo : public MipsInstrInfo {
const MipsSERegisterInfo RI;
bool IsN64;
public:
explicit MipsSEInstrInfo(MipsTargetMachine &TM);
virtual const MipsRegisterInfo &getRegisterInfo() const;
/// 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.
virtual unsigned isLoadFromStackSlot(const MachineInstr *MI,
int &FrameIndex) const;
/// 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.
virtual unsigned isStoreToStackSlot(const MachineInstr *MI,
int &FrameIndex) const;
virtual void copyPhysReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI, DebugLoc DL,
unsigned DestReg, unsigned SrcReg,
bool KillSrc) const;
virtual void storeRegToStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI,
unsigned SrcReg, bool isKill, int FrameIndex,
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const;
virtual void loadRegFromStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI,
unsigned DestReg, int FrameIndex,
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const;
virtual bool expandPostRAPseudo(MachineBasicBlock::iterator MI) const;
virtual unsigned GetOppositeBranchOpc(unsigned Opc) const;
/// Adjust SP by Amount bytes.
void adjustStackPtr(unsigned SP, int64_t Amount, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
/// Emit a series of instructions to load an immediate. If NewImm is a
/// non-NULL parameter, the last instruction is not emitted, but instead
/// its immediate operand is returned in NewImm.
unsigned loadImmediate(int64_t Imm, MachineBasicBlock &MBB,
MachineBasicBlock::iterator II, DebugLoc DL,
unsigned *NewImm) const;
private:
virtual unsigned GetAnalyzableBrOpc(unsigned Opc) const;
void ExpandRetRA(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
unsigned Opc) const;
void ExpandExtractElementF64(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
void ExpandBuildPairF64(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
void ExpandEhReturn(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
};
}
#endif
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