[PATCH] D98509: [LV] Calculate max feasible scalable VF.

[Sander de Smalen via Phabricator via llvm-commits]

sdesmalen added a comment.

In D98509#2724752 <https://reviews.llvm.org/D98509#2724752>, @hubert.reinterpretcast wrote:

> In D98509#2724684 <https://reviews.llvm.org/D98509#2724684>, @hubert.reinterpretcast wrote:
>
>> Reverting this patch locally resolves the following failure (and many more) for me:
>> https://lab.llvm.org/buildbot/#/builders/140/builds/2/steps/5/logs/FAIL__Clang__loop-vectorize_c
>
> Trying to figure out if this patch is running into UB. Disabling optimizations in the build seems to resolve these failure

Hi @hubert.reinterpretcast, I've built this patch with UBSan but that didn't point out any issues. Do you have any suggestions on how to reproduce this locally? (I see that buildbot is using some IBM xlclang (proprietary?) compiler to build)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D98509/new/

https://reviews.llvm.org/D98509