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54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
//=- MBlazeFrameLowering.h - Define frame lowering for MicroBlaze -*- 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 MBLAZE_FRAMEINFO_H
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#define MBLAZE_FRAMEINFO_H
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#include "MBlaze.h"
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#include "MBlazeSubtarget.h"
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#include "llvm/Target/TargetFrameLowering.h"
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namespace llvm {
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class MBlazeSubtarget;
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class MBlazeFrameLowering : public TargetFrameLowering {
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protected:
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const MBlazeSubtarget &STI;
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public:
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explicit MBlazeFrameLowering(const MBlazeSubtarget &sti)
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: TargetFrameLowering(TargetFrameLowering::StackGrowsUp, 4, 0), STI(sti) {
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}
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/// targetHandlesStackFrameRounding - Returns true if the target is
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/// responsible for rounding up the stack frame (probably at emitPrologue
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/// time).
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bool targetHandlesStackFrameRounding() const { return true; }
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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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bool hasFP(const MachineFunction &MF) const;
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int getFrameIndexOffset(const MachineFunction &MF, int FI) const;
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virtual void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
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RegScavenger *RS) const;
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};
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} // End llvm namespace
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#endif
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