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https://github.com/c64scene-ar/llvm-6502.git
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95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
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//===- XCoreRegisterInfo.h - XCore Register Information Impl ----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the XCore implementation of the MRegisterInfo class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef XCOREREGISTERINFO_H
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#define XCOREREGISTERINFO_H
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#include "llvm/Target/TargetRegisterInfo.h"
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#include "XCoreGenRegisterInfo.h.inc"
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namespace llvm {
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class TargetInstrInfo;
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struct XCoreRegisterInfo : public XCoreGenRegisterInfo {
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private:
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const TargetInstrInfo &TII;
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void loadConstant(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator I,
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unsigned DstReg, int64_t Value) const;
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void storeToStack(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator I,
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unsigned SrcReg, int Offset) const;
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void loadFromStack(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator I,
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unsigned DstReg, int Offset) const;
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public:
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XCoreRegisterInfo(const TargetInstrInfo &tii);
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/// Code Generation virtual methods...
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const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
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const TargetRegisterClass* const* getCalleeSavedRegClasses(
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const MachineFunction *MF = 0) const;
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BitVector getReservedRegs(const MachineFunction &MF) const;
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bool requiresRegisterScavenging(const MachineFunction &MF) const;
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bool hasFP(const MachineFunction &MF) const;
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void eliminateCallFramePseudoInstr(MachineFunction &MF,
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MachineBasicBlock &MBB,
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MachineBasicBlock::iterator I) const;
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void eliminateFrameIndex(MachineBasicBlock::iterator II,
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int SPAdj, RegScavenger *RS = NULL) const;
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void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
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RegScavenger *RS = NULL) const;
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void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
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void emitPrologue(MachineFunction &MF) const;
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void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
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// Debug information queries.
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unsigned getRARegister() const;
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unsigned getFrameRegister(MachineFunction &MF) const;
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void getInitialFrameState(std::vector<MachineMove> &Moves) const;
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//! Return the array of argument passing registers
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/*!
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\note The size of this array is returned by getArgRegsSize().
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*/
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static const unsigned *getArgRegs(const MachineFunction *MF = 0);
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//! Return the size of the argument passing register array
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static unsigned getNumArgRegs(const MachineFunction *MF = 0);
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//! Return whether to emit frame moves
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static bool needsFrameMoves(const MachineFunction &MF);
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//! Get DWARF debugging register number
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int getDwarfRegNum(unsigned RegNum, bool isEH) const;
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};
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} // end namespace llvm
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#endif
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