[all-commits] [llvm/llvm-project] 14bc11: [clang][dataflow]Use cast_or_null instead of cast ...

[Qizhi Hu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 14bc11a651971bbbdf96565898be2c94fa2b1cf5
      https://github.com/llvm/llvm-project/commit/14bc11a651971bbbdf96565898be2c94fa2b1cf5
  Author: Qizhi Hu <836744285 at qq.com>
  Date:   2023-10-21 (Sat, 21 Oct 2023)

  Changed paths:
    M clang-tools-extra/docs/ReleaseNotes.rst
    M clang-tools-extra/test/clang-tidy/checkers/bugprone/Inputs/unchecked-optional-access/absl/types/optional.h
    M clang-tools-extra/test/clang-tidy/checkers/bugprone/unchecked-optional-access.cpp
    M clang/lib/Analysis/FlowSensitive/Models/UncheckedOptionalAccessModel.cpp
    M clang/unittests/Analysis/FlowSensitive/UncheckedOptionalAccessModelTest.cpp

  Log Message:
  -----------
  [clang][dataflow]Use cast_or_null instead of cast to prevent crash (#68510)

`getStorageLocation` may return `nullptr` and this will produce crash
when use `cast`, use `dyn_cast_or_null` instead. I test it locally using
[FTXUI](https://github.com/ArthurSonzogni/FTXUI) and it may be the cause
of issue [issue](https://github.com/llvm/llvm-project/issues/68412), but
I am not sure.

Co-authored-by: huqizhi <huqizhi at 836744285@qq.com>