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Missed this. 

llvm-svn: 86331
This commit is contained in:
Evan Cheng 2009-11-07 04:07:30 +00:00
parent a8e8a7c976
commit 16e1c31da2
1 changed files with 12 additions and 1 deletions
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13
llvm/include/llvm/Target/TargetInstrInfo.h
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@ -21,7 +21,6 @@ namespace llvm {
class MCAsmInfo;
class TargetRegisterClass;
class TargetRegisterInfo;
class LiveVariables;
class CalleeSavedInfo;
class SDNode;
@ -226,6 +225,14 @@ public:
virtual bool findCommutedOpIndices(MachineInstr *MI, unsigned &SrcOpIdx1,
unsigned &SrcOpIdx2) const = 0;
/// isIdentical - Return true if two instructions are identical. This differs
/// from MachineInstr::isIdenticalTo() in that it does not require the
/// virtual destination registers to be the same. This is used by MachineLICM
/// and other MI passes to perform CSE.
virtual bool isIdentical(const MachineInstr *MI,
const MachineInstr *Other,
const MachineRegisterInfo *MRI) const = 0;
/// AnalyzeBranch - Analyze the branching code at the end of MBB, returning
/// true if it cannot be understood (e.g. it's a switch dispatch or isn't
/// implemented for a target). Upon success, this returns false and returns
@ -510,6 +517,10 @@ public:
MachineBasicBlock::iterator MI,
unsigned DestReg, unsigned SubReg,
const MachineInstr *Orig) const;
virtual bool isIdentical(const MachineInstr *MI,
const MachineInstr *Other,
const MachineRegisterInfo *MRI) const;
virtual unsigned GetFunctionSizeInBytes(const MachineFunction &MF) const;
};