diff options
Diffstat (limited to 'include/llvm/CodeGen/MachineInstr.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineInstr.h | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h index 6e33fb3..66be26c 100644 --- a/include/llvm/CodeGen/MachineInstr.h +++ b/include/llvm/CodeGen/MachineInstr.h @@ -179,17 +179,16 @@ public: return MemRefsEnd - MemRefs == 1; } + enum MICheckType { + CheckDefs, // Check all operands for equality + IgnoreDefs, // Ignore all definitions + IgnoreVRegDefs // Ignore virtual register definitions + }; + /// isIdenticalTo - Return true if this instruction is identical to (same /// opcode and same operands as) the specified instruction. - bool isIdenticalTo(const MachineInstr *Other) const { - if (Other->getOpcode() != getOpcode() || - Other->getNumOperands() != getNumOperands()) - return false; - for (unsigned i = 0, e = getNumOperands(); i != e; ++i) - if (!getOperand(i).isIdenticalTo(Other->getOperand(i))) - return false; - return true; - } + bool isIdenticalTo(const MachineInstr *Other, + MICheckType Check = CheckDefs) const; /// removeFromParent - This method unlinks 'this' from the containing basic /// block, and returns it, but does not delete it. @@ -331,13 +330,13 @@ public: /// isSafeToMove - Return true if it is safe to move this instruction. If /// SawStore is set to true, it means that there is a store (or call) between /// the instruction's location and its intended destination. - bool isSafeToMove(const TargetInstrInfo *TII, bool &SawStore, - AliasAnalysis *AA) const; + bool isSafeToMove(const TargetInstrInfo *TII, AliasAnalysis *AA, + bool &SawStore) const; /// isSafeToReMat - Return true if it's safe to rematerialize the specified /// instruction which defined the specified register instead of copying it. - bool isSafeToReMat(const TargetInstrInfo *TII, unsigned DstReg, - AliasAnalysis *AA) const; + bool isSafeToReMat(const TargetInstrInfo *TII, AliasAnalysis *AA, + unsigned DstReg) const; /// hasVolatileMemoryRef - Return true if this instruction may have a /// volatile memory reference, or if the information describing the |
