[Bug tree-optimization/118717] [12/13/14/15 Regression] GCC 15 produces ICE with ruby-3.4.1 when lto is used: ractor.c:592:1: internal compiler error: SSA corruption

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118717

--- Comment #13 from GCC 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:fbcbbfe2bf83eb8b1347144eeca37b06be5a8bb5

commit r15-7331-gfbcbbfe2bf83eb8b1347144eeca37b06be5a8bb5
Author: Richard Biener <rguenther@suse.de>
Date:   Mon Feb 3 09:55:50 2025 +0100

    tree-optimization/118717 - store commoning vs. abnormals

    When we sink common stores in cselim or the sink pass we have to
    make sure to not introduce overlapping lifetimes for abnormals
    used in the ref.  The easiest is to avoid sinking stmts which
    reference abnormals at all which is what the following does.

            PR tree-optimization/118717
            * tree-ssa-phiopt.cc (cond_if_else_store_replacement_1):
            Do not common stores referencing abnormal SSA names.
            * tree-ssa-sink.cc (sink_common_stores_to_bb): Likewise.

            * gcc.dg/torture/pr118717.c: New testcase.