Use CloneMachineInstr to make a new MI in commuteInstruction to make the code tolerant of instructions with more than two input operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163000 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TargetInstrInfoImpl.cpp b/lib/CodeGen/TargetInstrInfoImpl.cpp
index 59d62bb..7e7f835 100644
--- a/lib/CodeGen/TargetInstrInfoImpl.cpp
+++ b/lib/CodeGen/TargetInstrInfoImpl.cpp
@@ -99,17 +99,8 @@
if (NewMI) {
// Create a new instruction.
- bool Reg0IsDead = HasDef ? MI->getOperand(0).isDead() : false;
MachineFunction &MF = *MI->getParent()->getParent();
- if (HasDef)
- return BuildMI(MF, MI->getDebugLoc(), MI->getDesc())
- .addReg(Reg0, RegState::Define | getDeadRegState(Reg0IsDead), SubReg0)
- .addReg(Reg2, getKillRegState(Reg2IsKill), SubReg2)
- .addReg(Reg1, getKillRegState(Reg1IsKill), SubReg1);
- else
- return BuildMI(MF, MI->getDebugLoc(), MI->getDesc())
- .addReg(Reg2, getKillRegState(Reg2IsKill), SubReg2)
- .addReg(Reg1, getKillRegState(Reg1IsKill), SubReg1);
+ MI = MF.CloneMachineInstr(MI);
}
if (HasDef) {