llvm-project

263224e4 - [InstCombine] Require poison operand in canEvaluateShuffled transform

[InstCombine] Require poison operand in canEvaluateShuffled transform This transform works on single-source shuffles, which require that the second operand is poison, not undef. Otherwise we may convert undef to poison. Fixes https://github.com/llvm/llvm-project/issues/92887.