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Diffstat (limited to 'contrib/llvm/lib/Target/MBlaze/MBlazeFrameLowering.h')
-rw-r--r-- | contrib/llvm/lib/Target/MBlaze/MBlazeFrameLowering.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/MBlaze/MBlazeFrameLowering.h b/contrib/llvm/lib/Target/MBlaze/MBlazeFrameLowering.h new file mode 100644 index 0000000..01e6578 --- /dev/null +++ b/contrib/llvm/lib/Target/MBlaze/MBlazeFrameLowering.h @@ -0,0 +1,52 @@ +//=- MBlazeFrameLowering.h - Define frame lowering for MicroBlaze -*- C++ -*-=// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// +// +//===----------------------------------------------------------------------===// + +#ifndef MBLAZE_FRAMEINFO_H +#define MBLAZE_FRAMEINFO_H + +#include "MBlaze.h" +#include "llvm/Target/TargetFrameLowering.h" + +namespace llvm { +class MBlazeSubtarget; + +class MBlazeFrameLowering : public TargetFrameLowering { +protected: + const MBlazeSubtarget &STI; + +public: + explicit MBlazeFrameLowering(const MBlazeSubtarget &sti) + : TargetFrameLowering(TargetFrameLowering::StackGrowsUp, 4, 0), STI(sti) { + } + + /// targetHandlesStackFrameRounding - Returns true if the target is + /// responsible for rounding up the stack frame (probably at emitPrologue + /// time). + bool targetHandlesStackFrameRounding() const { return true; } + + /// emitProlog/emitEpilog - These methods insert prolog and epilog code into + /// the function. + void emitPrologue(MachineFunction &MF) const; + void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const; + + bool hasFP(const MachineFunction &MF) const; + + int getFrameIndexOffset(const MachineFunction &MF, int FI) const; + + virtual void processFunctionBeforeCalleeSavedScan(MachineFunction &MF, + RegScavenger *RS) const; +}; + +} // End llvm namespace + +#endif |