Files
llvm/clang/lib/AST
Aaron Ballman 2e275e2435 [C11] Allow initialization of an atomic-qualified pointer from a null pointer constant
The relevant language rule from C11 is 6.5.16.1p1: "the left operand is
an atomic, qualified, or unqualified pointer, and the right is a null
pointer constant; or". We correctly handled qualified or unqualified
pointer types, but failed to handle atomic-qualified pointer types. Now
we look through the atomic qualification before testing the constraint
requirements.

Fixes https://github.com/llvm/llvm-project/issues/49563
Differential Revision: https://reviews.llvm.org/D148730
2023-04-20 08:02:40 -04:00
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