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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/110436] [14 Regression] ICE in
 vectorizable_live_operation, at tree-vect-loop.cc:10170
Date: Tue, 04 Jul 2023 08:40:37 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110436

--- Comment #5 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:729aa4fa48d627c4344764676edad3b65d40a003

commit r14-2288-g729aa4fa48d627c4344764676edad3b65d40a003
Author: Richard Biener <rguenther@suse.de>
Date:   Tue Jul 4 09:51:05 2023 +0200

    tree-optimization/110436 - bogus live/relevant for unused pattern

    When we compute liveness and relevantness we have to make sure to
    handle live but not relevant stmts in a way we can later vectorize
    them.  When the stmt uses only operands that do not need vectorization
    we can just leave such stmts in place - but not in the case they
    are recognized as patterns.  Since we don't have a way to cancel
    pattern recognition we have to force mark such stmts as relevant.

            PR tree-optimization/110436
            * tree-vect-stmts.cc (vect_mark_relevant): Expand dumping,
            force live but not relevant pattern stmts relevant.

            * gcc.dg/pr110436.c: New testcase.=