[PATCH] D146564: [SLP]Find reused scalars in buildvector sequences, if any.

Thu Apr 6 06:04:19 PDT 2023

ABataev added a comment.

In D146564#4247760 <https://reviews.llvm.org/D146564#4247760>, @dblaikie wrote:

> FWIW, this change looks likely to be the blame for a regression I'm seeing on some internal workload at Google, resulting in this failure:
>
>   Instruction does not dominate all uses!
>     <badref> = extractelement
>     %589 = insertelement <4 x float> %588, float <badref>, i64 3
>   LLVM ERROR: Transformation resulted in an invalid module
>
> I don't have an isolated repro or anything to share at the moment - just a vague "heads up" for now.

Please send the reproducer, I'll investigate this ASAP.

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D146564/new/

https://reviews.llvm.org/D146564