llvm-project

3073bb5f - [X86] canCreateUndefOrPoisonForTargetNode/isGuaranteedNotToBeUndefOrPoisonForTargetNode - add X86ISD::VPERMV handling (#160845)

[X86] canCreateUndefOrPoisonForTargetNode/isGuaranteedNotToBeUndefOrPoisonForTargetNode - add X86ISD::VPERMV handling (#160845) X86ISD::VPERMV shuffles can't create undef/poison itself, allowing us to fold freeze(vpermps(x,y)) -> vpermps(freeze(x),freeze(y))