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Subject: [Bug tree-optimization/104676] [12 Regression] ICE in
 verify_loop_structure, at cfgloop.cc:1748 (error: loop 3's number of
 iterations '(unsigned int) + 4294967295' references the released SSA name
 '<unknown>')
Date: Thu, 24 Feb 2022 14:58:08 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104676

--- 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:a4066d3a5097333f17c0d7be1630a98f3a5b1c1d

commit r12-7372-ga4066d3a5097333f17c0d7be1630a98f3a5b1c1d
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Feb 24 14:34:52 2022 +0100

    tree-optimization/104676 - free nb_iterations after loop distribution

    Loop distribution can release SSA names used in nb_iterations, make
    sure to release those.

    2022-02-24  Richard Biener  <rguenther@suse.de>

            PR tree-optimization/104676
            * tree-loop-distribution.cc (loop_distribution::execute):
            Do a full scev_reset.

            * gcc.dg/torture/pr104676.c: New testcase.=