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Subject: [Bug tree-optimization/105458] [12/13 Regression] ICE in
 set_relation, at value-relation.cc:609 since r12-4790-g4b3a325f07acebf4
Date: Wed, 18 May 2022 14:13:26 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105458

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Andrew Macleod
<amacleod@gcc.gnu.org>:

https://gcc.gnu.org/g:9c8125b98cdd406fbad09995529a5c6acffdd928

commit r12-8393-g9c8125b98cdd406fbad09995529a5c6acffdd928
Author: Andrew MacLeod <amacleod@redhat.com>
Date:   Tue May 17 09:36:39 2022 -0400

    Check for equivalence after merging relations.

    When registering a relation, we need to merge with any existing relation
    before checking if it was an equivalence... otherwise it was not being
    handled properly.

            gcc/
            PR tree-optimization/105458
            * value-relation.cc (path_oracle::register_relation): Merge, th=
en
check
            for equivalence.

            gcc/testsuite/
            * gcc.dg/pr105458.c: New.=