[Bug tree-optimization/119039] Improve simplify_switch_using_ranges

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119039

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

https://gcc.gnu.org/g:9560cd83671a32ee2253f307112ac39b40aa712c

commit r16-1562-g9560cd83671a32ee2253f307112ac39b40aa712c
Author: Andrew MacLeod <amacl...@redhat.com>
Date:   Wed May 28 16:27:16 2025 -0400

    Improve contains_p and intersect with bitmasks.

    Improve the way contains_p (wide_int) and intersect behave wioth
    singletons and bitmasks.  Also fix a buglet in bitmask_intersect when the
    result is a singleton which is not in the current range.

            PR tree-optimization/119039
            gcc/
            * value-range.cc (irange::contains_p): Call wide_int version of
            contains_p for singleton ranges.
            (irange::intersect): If either range is a singleton, use
            contains_p.

            gcc/testsuite/
            * gcc.dg/pr119039-2.c: New.