[Bug tree-optimization/107130] [13 Regression] wrong code with -Os -fno-tree-ccp -fno-tree-forwprop -fno-tree-fre since r13-2900-g001c60ccfeaf9a48

["cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107130

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Aldy Hernandez <aldyh@gcc.gnu.org>:

https://gcc.gnu.org/g:f50d103183c551c7f9f9f20efaf2ebbf83d5e99f

commit r13-3052-gf50d103183c551c7f9f9f20efaf2ebbf83d5e99f
Author: Aldy Hernandez <aldyh@redhat.com>
Date:   Mon Oct 3 17:31:32 2022 +0200

    [PR107130] range-ops: Separate out ffs and popcount optimizations.

    __builtin_popcount and __builtin_ffs were sharing the same range-ops
    entry, but the nonzero mask optimization is not valid for ffs.
    Separate them out into two entries.

            PR tree-optimization/107130

    gcc/ChangeLog:

            * gimple-range-op.cc (class cfn_popcount): Call op_cfn_ffs.
            (class cfn_ffs): New.
            (gimple_range_op_handler::maybe_builtin_call): Separate out
            CASE_CFN_FFS into its own case.

    gcc/testsuite/ChangeLog:

            * gcc.dg/tree-ssa/pr107130.c: New test.