llvm-project

2bf7ddf0 - [X86] Add vector truncation tests for nsw/nuw flags

[X86] Add vector truncation tests for nsw/nuw flags Based off #85592 - our truncation -> PACKSS/PACKUS folds should be able to use the nsw/nuw flags to recognise when we don't need to mask/sext_inreg prior to the PACKSS/PACKUS nodes.