[Bug rtl-optimization/117611] [15 Regression] internal compiler error: in as_a, at machmode.h:381

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117611

--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>:

https://gcc.gnu.org/g:5b46c01c50662a1c730e6658ea4307d4f80da578

commit r15-7344-g5b46c01c50662a1c730e6658ea4307d4f80da578
Author: Richard Biener <rguent...@suse.de>
Date:   Mon Feb 3 15:27:30 2025 +0100

    rtl-optimization/117611 - ICE in simplify_shift_const_1

    The following checks we have a scalar int shift mode before
    enforcing it.  As AVR shows the mode can be a signed _Accum mode
    as well.

            PR rtl-optimization/117611
            * combine.cc (simplify_shift_const_1): Bail if not
            scalar int mode.

            * gcc.dg/fixed-point/pr117611.c: New testcase.