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37f247b8d8
to TargetFrameLowering, where it belongs. Incidentally, this allows us to delete some duplicated (and slightly different!) code in TRI. There are potentially other layering problems that can be cleaned up as a result, or in a similar manner. The refactoring was OK'd by Anton Korobeynikov on llvmdev. Note: this touches the target interfaces, so out-of-tree targets may be affected. llvm-svn: 175788
77 lines
2.8 KiB
C++
77 lines
2.8 KiB
C++
//===-- X86TargetFrameLowering.h - Define frame lowering for X86 -*- 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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// This class implements X86-specific bits of TargetFrameLowering class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef X86_FRAMELOWERING_H
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#define X86_FRAMELOWERING_H
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#include "X86Subtarget.h"
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#include "llvm/MC/MCDwarf.h"
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#include "llvm/Target/TargetFrameLowering.h"
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namespace llvm {
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class MCSymbol;
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class X86TargetMachine;
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class X86FrameLowering : public TargetFrameLowering {
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const X86TargetMachine &TM;
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const X86Subtarget &STI;
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public:
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explicit X86FrameLowering(const X86TargetMachine &tm, const X86Subtarget &sti)
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: TargetFrameLowering(StackGrowsDown,
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sti.getStackAlignment(),
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(sti.is64Bit() ? -8 : -4)),
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TM(tm), STI(sti) {
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}
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void emitCalleeSavedFrameMoves(MachineFunction &MF, MCSymbol *Label,
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unsigned FramePtr) 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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void adjustForSegmentedStacks(MachineFunction &MF) const;
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void adjustForHiPEPrologue(MachineFunction &MF) const;
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void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
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RegScavenger *RS = NULL) const;
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bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MI,
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const std::vector<CalleeSavedInfo> &CSI,
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const TargetRegisterInfo *TRI) const;
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bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MI,
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const std::vector<CalleeSavedInfo> &CSI,
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const TargetRegisterInfo *TRI) const;
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bool hasFP(const MachineFunction &MF) const;
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bool hasReservedCallFrame(const MachineFunction &MF) const;
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int getFrameIndexOffset(const MachineFunction &MF, int FI) const;
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int getFrameIndexReference(const MachineFunction &MF, int FI,
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unsigned &FrameReg) const;
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uint32_t getCompactUnwindEncoding(MachineFunction &MF) const;
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void eliminateCallFramePseudoInstr(MachineFunction &MF,
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MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MI) const;
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};
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} // End llvm namespace
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#endif
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