[all-commits] [llvm/llvm-project] 6f13c7: [clang] fix sema init crashing on initialization s...

[Yuxuan Chen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6f13c71d31f7aa08bd59c72f7ba4c5c8b1023e40
      https://github.com/llvm/llvm-project/commit/6f13c71d31f7aa08bd59c72f7ba4c5c8b1023e40
  Author: Yuxuan Chen <ych at fb.com>
  Date:   2024-07-10 (Wed, 10 Jul 2024)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/lib/Sema/SemaInit.cpp
    A clang/test/SemaCXX/pr98102.cpp

  Log Message:
  -----------
  [clang] fix sema init crashing on initialization sequences (#98102)

We ran into a FE crash and root caused to `ER.get()` on line 5584 here
being nullptr. I think this is a result of not checking if ER here is
invalid.

Example of crash-on-valid C++
https://gist.github.com/yuxuanchen1997/576dce964666f0f8713fccacf5847138

Note that this crash happens only with `-std=c++20`.



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