-//===- 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
+#ifndef LLVM_LIB_TARGET_MIPS_MIPSREGISTERINFO_H
+#define LLVM_LIB_TARGET_MIPS_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"
-class TargetInstrInfo;
+namespace llvm {
+class MipsSubtarget;
class Type;
-struct MipsRegisterInfo : public MipsGenRegisterInfo {
- const TargetInstrInfo &TII;
-
- MipsRegisterInfo(const TargetInstrInfo &tii);
+class MipsRegisterInfo : public MipsGenRegisterInfo {
+protected:
+ const MipsSubtarget &Subtarget;
+
+public:
+ MipsRegisterInfo(const MipsSubtarget &Subtarget);
/// 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);
- /// Code Generation virtual methods...
- void storeRegToStackSlot(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MBBI,
- unsigned SrcReg, int FrameIndex,
- const TargetRegisterClass *RC) const;
-
- void storeRegToAddr(MachineFunction &MF, unsigned SrcReg,
- SmallVectorImpl<MachineOperand> Addr,
- const TargetRegisterClass *RC,
- SmallVectorImpl<MachineInstr*> &NewMIs) const;
-
- void loadRegFromStackSlot(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MBBI,
- unsigned DestReg, int FrameIndex,
- const TargetRegisterClass *RC) const;
+ /// Get PIC indirect call register
+ static unsigned getPICCallReg();
- void loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
- SmallVectorImpl<MachineOperand> Addr,
- const TargetRegisterClass *RC,
- SmallVectorImpl<MachineInstr*> &NewMIs) const;
+ /// Adjust the Mips stack frame.
+ void adjustMipsStackFrame(MachineFunction &MF) const;
- void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
- unsigned DestReg, const MachineInstr *Orig) const;
-
- MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
- int FrameIndex) const;
-
- MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
- MachineInstr* LoadMI) const {
- return 0;
- }
-
- void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
- unsigned DestReg, unsigned SrcReg,
- const TargetRegisterClass *DestRC,
- const TargetRegisterClass *SrcRC) const;
-
-
- const unsigned *getCalleeSavedRegs(const MachineFunction* MF = 0) const;
+ /// Code Generation virtual methods...
+ const TargetRegisterClass *getPointerRegClass(const MachineFunction &MF,
+ unsigned Kind) const override;
- const TargetRegisterClass* const*
- getCalleeSavedRegClasses(const MachineFunction* MF = 0) const;
+ unsigned getRegPressureLimit(const TargetRegisterClass *RC,
+ MachineFunction &MF) const override;
+ const MCPhysReg *
+ getCalleeSavedRegs(const MachineFunction *MF = nullptr) const override;
+ const uint32_t *getCallPreservedMask(CallingConv::ID) const override;
+ static const uint32_t *getMips16RetHelperMask();
- BitVector getReservedRegs(const MachineFunction &MF) const;
+ BitVector getReservedRegs(const MachineFunction &MF) const override;
- bool hasFP(const MachineFunction &MF) const;
+ bool requiresRegisterScavenging(const MachineFunction &MF) const override;
- void eliminateCallFramePseudoInstr(MachineFunction &MF,
- MachineBasicBlock &MBB,
- MachineBasicBlock::iterator I) const;
+ bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const override;
/// Stack Frame Processing Methods
void eliminateFrameIndex(MachineBasicBlock::iterator II,
- int SPAdj, RegScavenger *RS = NULL) const;
+ int SPAdj, unsigned FIOperandNum,
+ RegScavenger *RS = nullptr) const override;
- void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
+ void processFunctionBeforeFrameFinalized(MachineFunction &MF,
+ RegScavenger *RS = nullptr) const;
- void emitPrologue(MachineFunction &MF) const;
- void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
-
/// Debug information queries.
- unsigned getRARegister() const;
- unsigned getFrameRegister(MachineFunction &MF) const;
+ unsigned getFrameRegister(const MachineFunction &MF) const override;
+
+ /// \brief Return GPR register class.
+ virtual const TargetRegisterClass *intRegClass(unsigned Size) const = 0;
- /// Exception handling queries.
- unsigned getEHExceptionRegister() const;
- unsigned getEHHandlerRegister() const;
+private:
+ virtual void eliminateFI(MachineBasicBlock::iterator II, unsigned OpNo,
+ int FrameIndex, uint64_t StackSize,
+ int64_t SPOffset) const = 0;
};
} // end namespace llvm
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