[llvm] [AMDGPU] Recognise bitmask operations as srcmods on select (PR #152119)

[Matt Arsenault via llvm-commits]

https://github.com/arsenm commented:

LGTM but can you add some negative tests for the case where this was trigger for canonicalizing instructions? I assume those required looking through a bitcast? 

https://github.com/llvm/llvm-project/pull/152119