[Bug c/119950] __builtin_constant_p warning with -Wdeprecated-non-prototype inconsistent

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119950

--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Florian Weimer <f...@gcc.gnu.org>:

https://gcc.gnu.org/g:b6d37ec1dd2a228d94e7b5b438f3aa53684316bc

commit r16-334-gb6d37ec1dd2a228d94e7b5b438f3aa53684316bc
Author: Florian Weimer <fwei...@redhat.com>
Date:   Thu May 1 19:06:45 2025 +0200

    c: Suppress -Wdeprecated-non-prototype warnings for builtins

    Builtins defined with BT_FN_INT_VAR etc. show as functions without
    a prototype and trigger the warning.

    gcc/c/

            PR c/119950
            * c-typeck.cc (convert_arguments): Check for built-in
            function declaration before warning.

    gcc/testsuite/

            * gcc.dg/Wdeprecated-non-prototype-5.c: New test.