[all-commits] [llvm/llvm-project] ef6df9: [Clang] Fix assertion when __block is used on glob...

[TPPPP via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ef6df9dcea99d7dad003539c82264cf8777374e7
      https://github.com/llvm/llvm-project/commit/ef6df9dcea99d7dad003539c82264cf8777374e7
  Author: TPPPP <TPPPP72 at outlook.com>
  Date:   2026-05-12 (Tue, 12 May 2026)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/lib/Sema/SemaDecl.cpp
    M clang/lib/Sema/SemaObjC.cpp
    A clang/test/Sema/block-on-objc-ivars.m
    A clang/test/Sema/gh183974.c

  Log Message:
  -----------
  [Clang] Fix assertion when __block is used on global variables in C mode (#194856)

This is a reland PR, related to #183988 

I added an extra check in handleBlocksAttr to ensure that illegal Decl
values ​​are not passed to downstream functions.
And remove unnecessary check in `CheckCompleteVariableDeclaration`.

Also added a extra regression test.

Fixes #183974



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