diff options
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index 969a05c580..2a3f1cbb68 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -1214,6 +1214,7 @@ X86InstrInfo::commuteInstruction(MachineInstr *MI, bool NewMI) const { unsigned A = MI->getOperand(0).getReg(); unsigned B = MI->getOperand(1).getReg(); unsigned C = MI->getOperand(2).getReg(); + bool AisDead = MI->getOperand(0).isDead(); bool BisKill = MI->getOperand(1).isKill(); bool CisKill = MI->getOperand(2).isKill(); // If machine instrs are no longer in two-address forms, update @@ -1225,7 +1226,8 @@ X86InstrInfo::commuteInstruction(MachineInstr *MI, bool NewMI) const { A = C; CisKill = false; } - return BuildMI(get(Opc), A).addReg(C, false, false, CisKill) + return BuildMI(get(Opc)).addReg(A, true, false, false, AisDead) + .addReg(C, false, false, CisKill) .addReg(B, false, false, BisKill).addImm(Size-Amt); } case X86::CMOVB16rr: |