[Bug middle-end/115913] [12/13/14/15 Regression] ICE with pragma GCC pop_options with diagnostic since r11-1141

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115913

--- Comment #12 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Lewis Hyatt <lhyatt@gcc.gnu.org>:

https://gcc.gnu.org/g:c0008df2118233f1afbed76ce308b4dfb6e6fc1a

commit r15-7323-gc0008df2118233f1afbed76ce308b4dfb6e6fc1a
Author: Lewis Hyatt <lhyatt@gmail.com>
Date:   Sun Jan 26 18:57:00 2025 -0500

    options: Adjust cl_optimization_compare to avoid checking ICE [PR115913]

    At the end of a sequence like:
     #pragma GCC push_options
     ...
     #pragma GCC pop_options

    the handler for pop_options calls cl_optimization_compare() (as generated
by
    optc-save-gen.awk) to make sure that all global state has been restored to
    the value it had prior to the push_options call. The verification is
    performed for almost all entries in the global_options struct. This leads
to
    unexpected checking asserts, as discussed in the PR, in case the state of
    warnings-related options has been intentionally modified in between
    push_options and pop_options via a call to #pragma GCC diagnostic. Address
    that by skipping the verification for CL_WARNING-flagged options.

    gcc/ChangeLog:

            PR middle-end/115913
            * optc-save-gen.awk (cl_optimization_compare): Skip options with
            CL_WARNING flag.

    gcc/testsuite/ChangeLog:

            PR middle-end/115913
            * c-c++-common/cpp/pr115913.c: New test.