[Bug target/120604] runtime error in ix86_expand_int_movcc i386/i386-expand.cc:3612:

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120604

--- Comment #14 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Uros Bizjak <uros@gcc.gnu.org>:

https://gcc.gnu.org/g:03e87c78d399e7fd9510a7db3025a9ed1393e874

commit r16-1483-g03e87c78d399e7fd9510a7db3025a9ed1393e874
Author: Uros Bizjak <ubizjak@gmail.com>
Date:   Thu Jun 12 14:03:50 2025 +0200

    i386: Fix signed integer overflow in ix86_expand_int_movcc, part 2
[PR120604]

    Make sure we can represent the difference between two 64-bit DImode
immediate
    values in 64-bit HOST_WIDE_INT and return false if this is not the case.

    ix86_expand_int_movcc is used in mov<mode>cc expaner.  Expander will FAIL
    when the function returns false and middle-end will retry expansion with
    values forced to registers.

            PR target/120604

    gcc/ChangeLog:

            * config/i386/i386-expand.cc (ix86_expand_int_movcc): Make sure
            we can represent the difference between two 64-bit DImode
            immediate values in 64-bit HOST_WIDE_INT.