[Bug c++/115623] ICE: Segmentation fault in finish_for_cond with novector and almost infinite loop

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115623

--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-14 branch has been updated by Tamar Christina
<tnfch...@gcc.gnu.org>:

https://gcc.gnu.org/g:1742b699c31e3ac4dadbedb6036ee2498b569259

commit r14-10378-g1742b699c31e3ac4dadbedb6036ee2498b569259
Author: Tamar Christina <tamar.christ...@arm.com>
Date:   Thu Jul 4 11:01:55 2024 +0100

    c++ frontend: check for missing condition for novector [PR115623]

    It looks like I forgot to check in the C++ frontend if a condition exist
for the
    loop being adorned with novector.  This causes a segfault because cond
isn't
    expected to be null.

    This fixes it by issuing ignoring the pragma when there's no loop condition
    the same way we do in the C frontend.

    gcc/cp/ChangeLog:

            PR c++/115623
            * semantics.cc (finish_for_cond): Add check for C++ cond.

    gcc/testsuite/ChangeLog:

            PR c++/115623
            * g++.dg/vect/vect-novector-pragma_2.cc: New test.

    (cherry picked from commit 84acbfbecbdbc3fb2a395bd97e338b2b26fad374)