[Bug tree-optimization/122934] [16 Regression] gnat profiled bootstrap fails on i686-linux-gnu since r16-5168

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122934

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

https://gcc.gnu.org/g:f5978fc4f173d04dd5c48318cdff107cc4fabc76

commit r16-5874-gf5978fc4f173d04dd5c48318cdff107cc4fabc76
Author: Eric Botcazou <ebotcazou@adacore.com>
Date:   Wed Dec 3 17:26:49 2025 +0100

    Fix miscompilation of gnatbind with profiled bootstrap

    Boolean types may have precision > 1 so using !undefined_p && !varying_p is
    not sufficient for them.

    gcc/
            PR tree-optimization/122934
            * tree-ssa-loop-niter.cc (simplify_using_initial_conditions): Use
            singleton_p predicate even with boolean ranges.