[PATCH] D136659: [AliasAnalysis] Introduce getModRefInfoMask() as a generalization of pointsToConstantMemory().

Thu Mar 30 09:59:35 PDT 2023

nikic added a comment.

In D136659#4233968 <https://reviews.llvm.org/D136659#4233968>, @xry111 wrote:

> We observed a crash in Thunderbird built with Rustc using LLVM 16.0.0 (happens with Rustc 1.68.x built with a system LLVM 16, and Rustc nightly 2023-03-25).  See https://bugzilla.mozilla.org/show_bug.cgi?id=1824544.
>
> Bisect suggests this change is the first bad commit.
>
> Any pointer for diagnose?

Probably the same issue as https://github.com/llvm/llvm-project/issues/58776. It needs a smaller reproducer than "build all of firefox".

Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D136659