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Split foldMemoryOperand into public non-virtual and protected virtual

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parts, and add target-independent code to add/preserve
MachineMemOperands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60488 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2008-12-03 18:43:12 +00:00
parent 15511cf166
commit c54baa2d43
16 changed files with 188 additions and 102 deletions
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24
lib/Target/X86/X86InstrInfo.h
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@@ -368,18 +368,18 @@ public:
/// folding and return true, otherwise it should return false. If it folds
/// the instruction, it is likely that the MachineInstruction the iterator
/// references has been changed.
virtual MachineInstr* foldMemoryOperand(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const;
/// foldMemoryOperand - Same as the previous version except it allows folding
/// of any load and store from / to any address, not just from a specific
/// stack slot.
virtual MachineInstr* foldMemoryOperand(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
MachineInstr* LoadMI) const;
virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
const SmallVectorImpl<unsigned> &Ops,
MachineInstr* LoadMI) const;
/// canFoldMemoryOperand - Returns true if the specified load / store is
/// folding is possible.
@@ -444,10 +444,10 @@ public:
unsigned getGlobalBaseReg(MachineFunction *MF) const;
private:
MachineInstr* foldMemoryOperand(MachineFunction &MF,
MachineInstr* MI,
unsigned OpNum,
const SmallVector<MachineOperand,4> &MOs) const;
MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr* MI,
unsigned OpNum,
const SmallVector<MachineOperand,4> &MOs) const;
};
} // End llvm namespace