[PATCH] D91726: [LoopIdiom] 'left-shift until bittest' idiom: support canonical sign bit mask

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

In D91726#2475301 <https://reviews.llvm.org/D91726#2475301>, @pcc wrote:

> Sure, here is the .ll file.
> F14882187: test2.ll <https://reviews.llvm.org/F14882187>
> Reproduces with `opt -O2 -S test2.ll`.

Thank you, i can reproduce now.
This appears to be a very dumb mistake of forgetting to check the basic block of the PHI node, will fixup in a moment.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D91726/new/

https://reviews.llvm.org/D91726