[PATCH] D134377: [SLP]Try to emit canonical shuffle with undef operand.

[Douglas Yung via Phabricator via llvm-commits]

dyung added a comment.

Hi @ABataev, we have an internal test where this seemed to cause the codegen for a horizontal add test to get worse (I think) after your change. I have filed the issue as #58177, can you take a look?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D134377/new/

https://reviews.llvm.org/D134377