llvm-project

9115bef8 - [VectorCombine] Shrink loads used in shufflevector rebroadcasts. (#153138)

[VectorCombine] Shrink loads used in shufflevector rebroadcasts. (#153138) Reopen #128938. Attempt to shrink the size of vector loads where only some of the incoming lanes are used for rebroadcasts in shufflevector instructions. --------- Co-authored-by: Leon Clark <leoclark@amd.com> Co-authored-by: Simon Pilgrim <llvm-dev@redking.me.uk>