[PATCH] D56082: [X86][SLP] Enable SLP vectorization for 128-bit horizontal X86 instructions (add, sub)

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

There are a lot of test changes here that have nothing to do with the add/sub operations mentioned in the title. How do we know these changes are good? Was any benchmarking done with this patch?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56082/new/

https://reviews.llvm.org/D56082