[PATCH] D105199: [LoopVectorize] Fix scalable vector crash in VPReplicateRecipe::execute

[Sander de Smalen via Phabricator via llvm-commits]

sdesmalen added a comment.

Hi @david-arm, the case for the first test (`phi_multiple_use`) seems like an existing bug in `collectLoopScalars` where the LV incorrectly assumes that a value is scalar after vectorization even when it's also needed as a widened value.
The code already seemed to guard against similar cases, but some values still slipped through the cracks, as your test points out!

I've created a patch to address that in D106164 <https://reviews.llvm.org/D106164>.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D105199/new/

https://reviews.llvm.org/D105199