59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
//===-- MipsFrameLowering.h - Define frame lowering for Mips ----*- 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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//
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_MIPS_MIPSFRAMELOWERING_H
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#define LLVM_LIB_TARGET_MIPS_MIPSFRAMELOWERING_H
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#include "Mips.h"
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#include "llvm/CodeGen/TargetFrameLowering.h"
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namespace llvm {
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class MipsSubtarget;
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class MipsFrameLowering : public TargetFrameLowering {
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protected:
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const MipsSubtarget &STI;
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public:
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explicit MipsFrameLowering(const MipsSubtarget &sti, unsigned Alignment)
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: TargetFrameLowering(StackGrowsDown, Alignment, 0, Alignment), STI(sti) {}
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static const MipsFrameLowering *create(const MipsSubtarget &ST);
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bool hasFP(const MachineFunction &MF) const override;
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bool hasBP(const MachineFunction &MF) const;
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bool isFPCloseToIncomingSP() const override { return false; }
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bool enableShrinkWrapping(const MachineFunction &MF) const override {
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return true;
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}
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MachineBasicBlock::iterator
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eliminateCallFramePseudoInstr(MachineFunction &MF,
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MachineBasicBlock &MBB,
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MachineBasicBlock::iterator I) const override;
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protected:
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uint64_t estimateStackSize(const MachineFunction &MF) const;
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};
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/// Create MipsFrameLowering objects.
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const MipsFrameLowering *createMips16FrameLowering(const MipsSubtarget &ST);
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const MipsFrameLowering *createMipsSEFrameLowering(const MipsSubtarget &ST);
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} // End llvm namespace
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#endif
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