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Subject: [Bug tree-optimization/106498] [13 Regression] ICE in
 check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:645 since
 r13-1450-gd2a89866660945
Date: Tue, 02 Aug 2022 06:40:46 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106498

--- Comment #4 from CVS 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:c30bbd4d169c98b7535a30384c6a971ee875fa44

commit r13-1926-gc30bbd4d169c98b7535a30384c6a971ee875fa44
Author: Richard Biener <rguenther@suse.de>
Date:   Tue Aug 2 08:37:16 2022 +0200

    tree-optimization/106498 - reduce SSA updates in autopar

    The following reduces the number of SSA updates done during autopar
    OMP expansion, specifically avoiding the cases that just add virtual
    operands (where maybe none have been before) in dead regions of the CFG.

    Instead virtual SSA update is delayed until after the pass.  There's
    much more TLC needed here, but test coverage makes it really difficult.

            PR tree-optimization/106498
            * omp-expand.cc (expand_omp_taskreg): Do not perform virtual
            SSA update here.
            (expand_omp_for): Or here.
            (execute_expand_omp): Instead schedule it here together
            with CFG cleanup via TODO.=