[PATCH] D76483: [DivRemPairs] Freeze operands if they can be undef values

[Sanne Wouda via Phabricator via llvm-commits]

sanwou01 added a comment.

Hi, we're seeing a performance drop of 1.3% on SPEC 2017 mcf_r (compiled with LTO enabled) on AArch64 that bisects down to this patch. I'm testing whether D76010 <https://reviews.llvm.org/D76010> happens to fix this regression (I'll comment when I get the results), but if not then this might need some investigation to see what's going on.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D76483/new/

https://reviews.llvm.org/D76483