llvm-6502/lib/Target/X86/X86FrameLowering.h
Craig Topper 59ae7294ef Prune includes in X86 target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204216 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-19 06:53:25 +00:00

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2.8 KiB
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//===-- X86TargetFrameLowering.h - Define frame lowering for X86 -*- C++ -*-==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This class implements X86-specific bits of TargetFrameLowering class.
//
//===----------------------------------------------------------------------===//
#ifndef X86_FRAMELOWERING_H
#define X86_FRAMELOWERING_H
#include "X86Subtarget.h"
#include "llvm/Target/TargetFrameLowering.h"
namespace llvm {
class MCSymbol;
class X86TargetMachine;
class X86FrameLowering : public TargetFrameLowering {
const X86TargetMachine &TM;
const X86Subtarget &STI;
public:
explicit X86FrameLowering(const X86TargetMachine &tm, const X86Subtarget &sti)
: TargetFrameLowering(StackGrowsDown,
sti.getStackAlignment(),
(sti.is64Bit() ? -8 : -4)),
TM(tm), STI(sti) {
}
void emitCalleeSavedFrameMoves(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI, DebugLoc DL,
unsigned FramePtr) const;
/// emitProlog/emitEpilog - These methods insert prolog and epilog code into
/// the function.
void emitPrologue(MachineFunction &MF) const override;
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
void adjustForSegmentedStacks(MachineFunction &MF) const override;
void adjustForHiPEPrologue(MachineFunction &MF) const override;
void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
RegScavenger *RS = NULL) const override;
bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
const std::vector<CalleeSavedInfo> &CSI,
const TargetRegisterInfo *TRI) const override;
bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
const std::vector<CalleeSavedInfo> &CSI,
const TargetRegisterInfo *TRI) const override;
bool hasFP(const MachineFunction &MF) const override;
bool hasReservedCallFrame(const MachineFunction &MF) const override;
int getFrameIndexOffset(const MachineFunction &MF, int FI) const override;
int getFrameIndexReference(const MachineFunction &MF, int FI,
unsigned &FrameReg) const override;
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI) const override;
};
} // End llvm namespace
#endif