-//===- MipsRegisterInfo.h - Mips Register Information Impl ------*- C++ -*-===//
+//===-- MipsRegisterInfo.h - Mips Register Information Impl -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Bruno Cardoso Lopes and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
-// This file contains the Mips implementation of the MRegisterInfo class.
+// This file contains the Mips implementation of the TargetRegisterInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef MIPSREGISTERINFO_H
#define MIPSREGISTERINFO_H
-#include "llvm/Target/MRegisterInfo.h"
-#include "MipsGenRegisterInfo.h.inc"
+#include "Mips.h"
+#include "llvm/Target/TargetRegisterInfo.h"
-namespace llvm {
+#define GET_REGINFO_HEADER
+#include "MipsGenRegisterInfo.inc"
+namespace llvm {
+class MipsSubtarget;
class TargetInstrInfo;
class Type;
struct MipsRegisterInfo : public MipsGenRegisterInfo {
+ const MipsSubtarget &Subtarget;
const TargetInstrInfo &TII;
-
- MipsRegisterInfo(const TargetInstrInfo &tii);
-
- /// Code Generation virtual methods...
- void storeRegToStackSlot(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MBBI,
- unsigned SrcReg, int FrameIndex,
- const TargetRegisterClass *RC) const;
- void loadRegFromStackSlot(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MBBI,
- unsigned DestReg, int FrameIndex,
- const TargetRegisterClass *RC) const;
+ MipsRegisterInfo(const MipsSubtarget &Subtarget, const TargetInstrInfo &tii);
- void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
- unsigned DestReg, const MachineInstr *Orig) const;
+ /// getRegisterNumbering - Given the enum value for some register, e.g.
+ /// Mips::RA, return the number that it corresponds to (e.g. 31).
+ static unsigned getRegisterNumbering(unsigned RegEnum);
- MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
- int FrameIndex) const;
+ /// Get PIC indirect call register
+ static unsigned getPICCallReg();
- void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
- unsigned DestReg, unsigned SrcReg,
- const TargetRegisterClass *RC) const;
-
+ /// Adjust the Mips stack frame.
+ void adjustMipsStackFrame(MachineFunction &MF) const;
- const unsigned *getCalleeSavedRegs(const MachineFunction* MF = 0) const;
-
- const TargetRegisterClass* const*
- getCalleeSavedRegClasses(const MachineFunction* MF = 0) const;
+ /// Code Generation virtual methods...
+ const uint16_t *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
+ const uint32_t *getCallPreservedMask(CallingConv::ID) const;
BitVector getReservedRegs(const MachineFunction &MF) const;
- bool hasFP(const MachineFunction &MF) const;
+ virtual bool requiresRegisterScavenging(const MachineFunction &MF) const;
+
+ virtual bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const;
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
+ /// Stack Frame Processing Methods
void eliminateFrameIndex(MachineBasicBlock::iterator II,
int SPAdj, RegScavenger *RS = NULL) const;
void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
- void emitPrologue(MachineFunction &MF) const;
- void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
-
- // Debug information queries.
- unsigned getRARegister() const;
- unsigned getFrameRegister(MachineFunction &MF) const;
+ /// Debug information queries.
+ unsigned getFrameRegister(const MachineFunction &MF) const;
- // Exception handling queries.
+ /// Exception handling queries.
unsigned getEHExceptionRegister() const;
unsigned getEHHandlerRegister() const;
};