diff options
Diffstat (limited to 'llvm/lib/CodeGen/TargetInstrInfo.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/TargetInstrInfo.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/TargetInstrInfo.cpp b/llvm/lib/CodeGen/TargetInstrInfo.cpp index bd90ed5b55b..963f8178b50 100644 --- a/llvm/lib/CodeGen/TargetInstrInfo.cpp +++ b/llvm/lib/CodeGen/TargetInstrInfo.cpp @@ -174,6 +174,14 @@ MachineInstr *TargetInstrInfo::commuteInstructionImpl(MachineInstr &MI, bool Reg2IsUndef = MI.getOperand(Idx2).isUndef(); bool Reg1IsInternal = MI.getOperand(Idx1).isInternalRead(); bool Reg2IsInternal = MI.getOperand(Idx2).isInternalRead(); + // Avoid calling isRenamable for virtual registers since we assert that + // renamable property is only queried/set for physical registers. + bool Reg1IsRenamable = TargetRegisterInfo::isPhysicalRegister(Reg1) + ? MI.getOperand(Idx1).isRenamable() + : false; + bool Reg2IsRenamable = TargetRegisterInfo::isPhysicalRegister(Reg2) + ? MI.getOperand(Idx2).isRenamable() + : false; // If destination is tied to either of the commuted source register, then // it must be updated. if (HasDef && Reg0 == Reg1 && @@ -211,6 +219,12 @@ MachineInstr *TargetInstrInfo::commuteInstructionImpl(MachineInstr &MI, CommutedMI->getOperand(Idx1).setIsUndef(Reg2IsUndef); CommutedMI->getOperand(Idx2).setIsInternalRead(Reg1IsInternal); CommutedMI->getOperand(Idx1).setIsInternalRead(Reg2IsInternal); + // Avoid calling setIsRenamable for virtual registers since we assert that + // renamable property is only queried/set for physical registers. + if (TargetRegisterInfo::isPhysicalRegister(Reg1)) + CommutedMI->getOperand(Idx2).setIsRenamable(Reg1IsRenamable); + if (TargetRegisterInfo::isPhysicalRegister(Reg2)) + CommutedMI->getOperand(Idx1).setIsRenamable(Reg2IsRenamable); return CommutedMI; } |
