[Bug preprocessor/108244] [13 Regression] `pragma GCC diagnostic` and -E -fdirectives-only causes the preprocessor to become confused since r13-1544-ge46f4d7430c52104

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108244

--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Lewis Hyatt <lhy...@gcc.gnu.org>:

https://gcc.gnu.org/g:9ca4899144de6db61a782b03a1257489bd26f750

commit r13-5114-g9ca4899144de6db61a782b03a1257489bd26f750
Author: Lewis Hyatt <lhy...@gmail.com>
Date:   Thu Dec 29 16:55:21 2022 -0500

    preprocessor: Don't register pragmas in directives-only mode [PR108244]

    libcpp's directives-only mode does not expect deferred pragmas to be
    registered, but to date the c-family registration process has not checked
for
    this case. That issue became more visible since r13-1544, which added the
    commonly used GCC diagnostic pragmas to the set of those registered in
    preprocessing modes. Fix it by checking for directives-only mode in
    c-family/c-pragma.cc.

    gcc/c-family/ChangeLog:

            PR preprocessor/108244
            * c-pragma.cc (c_register_pragma_1): Don't attempt to register any
            deferred pragmas if -fdirectives-only.
            (init_pragma): Likewise.

    gcc/testsuite/ChangeLog:

            * c-c++-common/cpp/pr108244-1.c: New test.
            * c-c++-common/cpp/pr108244-2.c: New test.
            * c-c++-common/gomp/pr108244-3.c: New test.