[llvm-branch-commits] [llvm] RegisterPressure: Detect dead physreg defs from LiveIntervals with lane masks (PR #233215)

[Jay Foad via llvm-branch-commits]

https://github.com/jayfoad approved this pull request.

LGTM, this just matches what #225079 did for RegisterOperands::detectDeadDefs

https://github.com/llvm/llvm-project/pull/233215