llvm-project

bdd1b0aa - [SLP]Fix erasing reduced vals after partial shuffled-extract group merge

[SLP]Fix erasing reduced vals after partial shuffled-extract group merge The merge copied only extractelements from the next reduced-values group but skipped the whole group when collecting externally used values, so a leftover reduced value could be erased while still used by reduction ops. Merge only groups made solely of extractelements. Fixes #218709 Reviewers: Pull Request: https://github.com/llvm/llvm-project/pull/218734