[PATCH] D144958: [SLP]Initial support for reshuffling of non-starting buildvector/gather nodes.

Fri Mar 17 15:55:32 PDT 2023

rupprecht added a comment.

We're still seeing issues with this at trunk, even after the followup assertion fix in 874c49f55454cb285282e6d184f809945c0beca1 <https://reviews.llvm.org/rG874c49f55454cb285282e6d184f809945c0beca1>.

One strange thing I noticed is an entire method that now gets replaced w/ `unreachable`. This may just be a bug in `SimplifyCFGPass` that this patch triggers: https://godbolt.org/z/1G6PTd6os

(That method isn't the one that's causing problems for us, but maybe it has the same root cause)

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D144958/new/

https://reviews.llvm.org/D144958