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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/109462] [13 Regression] Possible
 miscompilation of clang LocalizationChecker since r13-1938
Date: Thu, 13 Apr 2023 18:12:48 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109462

--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Andrew Macleod <amacleod@gcc.gnu.org>:

https://gcc.gnu.org/g:9c2a5db997446a9438a3e01f5229dec3f78b09e7

commit r13-7170-g9c2a5db997446a9438a3e01f5229dec3f78b09e7
Author: Andrew MacLeod <amacleod@redhat.com>
Date:   Wed Apr 12 13:10:55 2023 -0400

    Ensure PHI equivalencies do not dominate the argument edge.

    When we create an equivalency between a PHI definition and an argument,
    ensure the definition does not dominate the incoming argument edge.

            PR tree-optimization/108139
            PR tree-optimization/109462
            * gimple-range-cache.cc (ranger_cache::fill_block_cache): Remove
            equivalency check for PHI nodes.
            * gimple-range-fold.cc (fold_using_range::range_of_phi): Ensure=
 def
            does not dominate single-arg equivalency edges.=