mirror of
https://github.com/c64scene-ar/llvm-6502.git
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fcb4a8ead3
to try to re-use scavenged frame index reference registers. rdar://8277890 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112241 91177308-0d34-0410-b5e6-96231b3b80d8
68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
//===- AlphaRegisterInfo.h - Alpha 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 Alpha implementation of the TargetRegisterInfo class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef ALPHAREGISTERINFO_H
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#define ALPHAREGISTERINFO_H
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#include "llvm/Target/TargetRegisterInfo.h"
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#include "AlphaGenRegisterInfo.h.inc"
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namespace llvm {
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class TargetInstrInfo;
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class Type;
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struct AlphaRegisterInfo : public AlphaGenRegisterInfo {
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const TargetInstrInfo &TII;
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AlphaRegisterInfo(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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BitVector getReservedRegs(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 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(const MachineFunction &MF) const;
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// Exception handling queries.
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unsigned getEHExceptionRegister() const;
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unsigned getEHHandlerRegister() const;
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int getDwarfRegNum(unsigned RegNum, bool isEH) const;
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static std::string getPrettyName(unsigned reg);
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private:
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mutable int curgpdist;
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};
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} // end namespace llvm
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#endif
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