[PATCH] D51589: DAG: Fold extract_vector_elt (scalar_to_vector), K to undef

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

@arsenm The subvector regression is still there but the actual instruction count has reduced


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D51589/new/

https://reviews.llvm.org/D51589