[Bug tree-optimization/107935] [13 Regression] ICE on valid code at -O3: in set_ssa_val_to, at tree-ssa-sccvn.cc:5011

Thu, 01 Dec 2022 01:19:34 -0800 

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107935

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <[email protected]>:

https://gcc.gnu.org/g:8629f212af0acb113879d0bc45291c54743790f1

commit r13-4436-g8629f212af0acb113879d0bc45291c54743790f1
Author: Richard Biener <[email protected]>
Date:   Thu Dec 1 09:01:20 2022 +0100

    tree-optimization/107935 - fixup equivalence handling in PHI VN

    The following makes sure to honor the backedge processing logic
    that forces VARYING there.

            PR tree-optimization/107935
            * tree-ssa-sccvn.cc (visit_phi): Honor forced VARYING on
            backedges.

            * gcc.dg/torture/pr107935.c: New testcase.

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