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//=- BlackfinFrameLowering.h - Define frame lowering for Blackfin -*- C++ -*-=//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//
//===----------------------------------------------------------------------===//
#ifndef BLACKFIN_FRAMEINFO_H
#define BLACKFIN_FRAMEINFO_H
#include "Blackfin.h"
#include "BlackfinSubtarget.h"
#include "llvm/Target/TargetFrameLowering.h"
namespace llvm {
class BlackfinSubtarget;
class BlackfinFrameLowering : public TargetFrameLowering {
protected:
const BlackfinSubtarget &STI;
public:
explicit BlackfinFrameLowering(const BlackfinSubtarget &sti)
: TargetFrameLowering(TargetFrameLowering::StackGrowsDown, 4, 0), STI(sti) {
}
/// 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;
bool hasReservedCallFrame(const MachineFunction &MF) const;
void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
RegScavenger *RS) const;
};
} // End llvm namespace
#endif
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