[Bug tree-optimization/111039] [11/12 Regression] Unable to coalesce ssa_names

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111039

--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Richard Biener
<rgue...@gcc.gnu.org>:

https://gcc.gnu.org/g:47e6bff94d980e2fcb6bcb42df04d3b73bd67da7

commit r12-10457-g47e6bff94d980e2fcb6bcb42df04d3b73bd67da7
Author: Richard Biener <rguent...@suse.de>
Date:   Thu Aug 17 13:10:14 2023 +0200

    tree-optimization/111039 - abnormals and bit test merging

    The following guards the bit test merging code in if-combine against
    the appearance of SSA names used in abnormal PHIs.

            PR tree-optimization/111039
            * tree-ssa-ifcombine.cc (ifcombine_ifandif): Check for
            SSA_NAME_OCCURS_IN_ABNORMAL_PHI.

            * gcc.dg/pr111039.c: New testcase.

    (cherry picked from commit 482551a79a3d3f107f6239679ee74655cfe8707e)