[PATCH] D127812: [AArch64] FMV support and necessary target features dependencies.

Tue Dec 20 17:19:41 PST 2022

hctim added a comment.

In D127812#4009447 <https://reviews.llvm.org/D127812#4009447>, @hctim wrote:

> Hi, this looks like a candidate for breaking the MSan bot: https://lab.llvm.org/buildbot/#/builders/5/builds/30139
>
> Still looking into it and bisecting, will let you know when I have more info. To reproduce the bots, the best way (because MSan setup is tricky because it requires an instrumented libcxx) is to use the scripts from https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild (buildbot_fast.sh is the right one).

Yeah, unfortunately I did track this failure down to this commit and reverted it upstream. If you need help figuring it out, please let me know. You may find that adding `-fsanitize-memory-track-origins=2` useful to add to the buildscript as well (which can be done by changing `check_stage2_msan` to `check_stage2_msan_track_origins` in `buildbot_fast.sh`.

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D127812/new/

https://reviews.llvm.org/D127812