[Bug rtl-optimization/116479] [15 Regression] wrong code with -O -funroll-loops -finline-stringops -fmodulo-sched --param=max-iterations-computation-cost=637924876 on aarch64 since r15-1447-g5d0c1b4e0d33c2

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116479

--- Comment #8 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-15 branch has been updated by Andre Simoes Dias Vieira
<avie...@gcc.gnu.org>:

https://gcc.gnu.org/g:eec0e950c6ba80217c73fe720a1b6cdba982f796

commit r15-10820-geec0e950c6ba80217c73fe720a1b6cdba982f796
Author: Andre Vieira <andre.simoesdiasvie...@arm.com>
Date:   Fri Apr 25 14:02:43 2025 +0100

    modulo-sched: reject loop conditions when not decrementing with one [PR
116479]

    In the commit titled 'doloop: Add support for predicated vectorized loops'
the
    doloop_condition_get function was changed to accept loops with decrements
    larger than 1.  This patch rejects such loops for modulo-sched.

    gcc/ChangeLog:

            PR rtl-optimization/116479
            * modulo-sched.cc (doloop_register_get): Reject conditions with
            decrements that are not 1.

    gcc/testsuite/ChangeLog:

            * gcc.dg/pr116479.c: New test.

    (cherry picked from commit 8073fa147248aa67c11227f922d91d784659077e)