[all-commits] [llvm/llvm-project] 77f0f8: [Sema][ObjC] Treat unknown selector messages as un...

[Akira Hatanaka via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 77f0f812b4195bfde3b8d2ddb4b85f78f41a628f
      https://github.com/llvm/llvm-project/commit/77f0f812b4195bfde3b8d2ddb4b85f78f41a628f
  Author: Akira Hatanaka <ahatanak at gmail.com>
  Date:   2025-07-03 (Thu, 03 Jul 2025)

  Changed paths:
    M clang/lib/Basic/DiagnosticIDs.cpp
    M clang/test/SemaObjCXX/arc-0x.mm

  Log Message:
  -----------
  [Sema][ObjC] Treat unknown selector messages as unrecoverable errors under ARC (#146803)

Fixes a CodeGen crash observed when C++ auto variable types remained
non-deduced due to a message being sent with an unknown selector under
ARC.

By treating these instances as an unrecoverable error, we prevent the
compiler from proceeding to CodeGen with fundamentally incorrect code.

rdar://144394403



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