[Bug middle-end/112344] [14 Regression] Wrong code at -O2 on x86_64-pc-linux-gnu

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112344

--- Comment #12 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:a7d82b45edeed99a850595eee0e59d16c4df7aff

commit r14-5813-ga7d82b45edeed99a850595eee0e59d16c4df7aff
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Nov 23 09:49:59 2023 +0100

    tree-optimization/112344 - relax final value-replacement fix

    The following tries to reduce the number of cases we use an unsigned
    type for the addition when we know the original signed increment was
    OK which is when the total unsigned increment computed fits the signed
    type as well.

    This fixes the observed testsuite fallout.

            PR tree-optimization/112344
            * tree-chrec.cc (chrec_apply): Only use an unsigned add
            when the overall increment doesn't fit the signed type.