62 lines
2.2 KiB
C++
62 lines
2.2 KiB
C++
//===- WDC65816FrameLowering.h - Define frame lowering for Sparc -*- 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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//
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//
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//===----------------------------------------------------------------------===//
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#ifndef WDC65816_FRAMEINFO_H
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#define WDC65816_FRAMEINFO_H
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#include "WDC65816.h"
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#include "llvm/Target/TargetFrameLowering.h"
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namespace llvm {
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class WDC65816FrameLowering : public TargetFrameLowering {
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public:
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explicit WDC65816FrameLowering(void)
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: TargetFrameLowering(TargetFrameLowering::StackGrowsDown, 1, 0) {}
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bool hasFP(const MachineFunction &MF) const;
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/// emitProlog/emitEpilog - These methods insert prolog and epilog code into
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/// the function.
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void emitPrologue(MachineFunction &MF) const;
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void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
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#if 0 // JSR TODO - do I need any of this?
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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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bool hasReservedCallFrame(const MachineFunction &MF) const;
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void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
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RegScavenger *RS = NULL) const;
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private:
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// Remap input registers to output registers for leaf procedure.
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void remapRegsForLeafProc(MachineFunction &MF) const;
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// Returns true if MF is a leaf procedure.
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bool isLeafProc(MachineFunction &MF) const;
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// Emits code for adjusting SP in function prologue/epilogue.
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void emitSPAdjustment(MachineFunction &MF,
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MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MBBI,
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int NumBytes, unsigned ADDrr, unsigned ADDri) const;
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#endif
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};
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} // End llvm namespace
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#endif
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