[Bug rtl-optimization/123294] [14/15 Regression] ICE at -O1 during RTL pass: ce2

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123294

--- Comment #9 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-15 branch has been updated by Andrew Pinski
<pinskia@gcc.gnu.org>:

https://gcc.gnu.org/g:1fbe552f9235d66499ad6a2a24ac6c642bb6ba59

commit r15-10940-g1fbe552f9235d66499ad6a2a24ac6c642bb6ba59
Author: Andrew Pinski <andrew.pinski@oss.qualcomm.com>
Date:   Sun Feb 1 15:41:52 2026 -0800

    ifcvt: Fix store flag of XImode on aarch64 while ifcvt [PR123294]

    In the testcase ifcvt is trying to do a emit_store_flag into a XImode.
    That will cause an ICE because XImode does not have any arithmetic optabs
    associated with it. This is because it is greater than MAX_FIXED_MODE_SIZE
    (along other things).
    noce_emit_store_flag already has code to reject non-scalar modes, so
    this adds a new check for modes that are greater than MAX_FIXED_MODE_SIZE.

    Bootstrapped and tested on aarch64-linux-gnu.

            PR rtl-optimization/123294

    gcc/ChangeLog:

            * ifcvt.cc (noce_emit_store_flag): Reject modes
            greater than MAX_FIXED_MODE_SIZE.

    gcc/testsuite/ChangeLog:

            * gcc.dg/pr123294-1.c: New test.
            * gcc.target/aarch64/pr123294-1.c: New test.

    Signed-off-by: Andrew Pinski <andrew.pinski@oss.qualcomm.com>
    (cherry picked from commit e02eba0dc7d1aa62c5edf7108e641bcb5c5584b8)