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Diffstat (limited to 'contrib/llvm/lib/Target/Mips/MipsFrameLowering.h')
-rw-r--r-- | contrib/llvm/lib/Target/Mips/MipsFrameLowering.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/Mips/MipsFrameLowering.h b/contrib/llvm/lib/Target/Mips/MipsFrameLowering.h new file mode 100644 index 0000000..5eabd58 --- /dev/null +++ b/contrib/llvm/lib/Target/Mips/MipsFrameLowering.h @@ -0,0 +1,54 @@ +//===-- MipsFrameLowering.h - Define frame lowering for Mips ----*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIB_TARGET_MIPS_MIPSFRAMELOWERING_H +#define LLVM_LIB_TARGET_MIPS_MIPSFRAMELOWERING_H + +#include "Mips.h" +#include "llvm/Target/TargetFrameLowering.h" + +namespace llvm { + class MipsSubtarget; + +class MipsFrameLowering : public TargetFrameLowering { +protected: + const MipsSubtarget &STI; + +public: + explicit MipsFrameLowering(const MipsSubtarget &sti, unsigned Alignment) + : TargetFrameLowering(StackGrowsDown, Alignment, 0, Alignment), STI(sti) {} + + static const MipsFrameLowering *create(const MipsSubtarget &ST); + + bool hasFP(const MachineFunction &MF) const override; + + bool hasBP(const MachineFunction &MF) const; + + bool isFPCloseToIncomingSP() const override { return false; } + + void + eliminateCallFramePseudoInstr(MachineFunction &MF, + MachineBasicBlock &MBB, + MachineBasicBlock::iterator I) const override; + +protected: + uint64_t estimateStackSize(const MachineFunction &MF) const; +}; + +/// Create MipsFrameLowering objects. +const MipsFrameLowering *createMips16FrameLowering(const MipsSubtarget &ST); +const MipsFrameLowering *createMipsSEFrameLowering(const MipsSubtarget &ST); + +} // End llvm namespace + +#endif |