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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 middle-end/110055] Dangling pointer warning inside std::vector
 on RISC-V
Date: Tue, 06 Jun 2023 08:30:55 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110055

--- Comment #9 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:84eec2916fa68cd2e2b3a2cf764f2ba595cce843

commit r14-1562-g84eec2916fa68cd2e2b3a2cf764f2ba595cce843
Author: Richard Biener <rguenther@suse.de>
Date:   Mon Jun 5 08:56:53 2023 +0200

    middle-end/110055 - avoid CLOBBERing static variables

    The gimplifier can elide initialized constant automatic variables
    to static storage in which case TARGET_EXPR gimplification needs
    to avoid emitting a CLOBBER for them since their lifetime is no
    longer limited.  Failing to do so causes spurious dangling-pointer
    diagnostics on the added testcase for some targets.

            PR middle-end/110055
            * gimplify.cc (gimplify_target_expr): Do not emit
            CLOBBERs for variables which have static storage duration
            after gimplifying their initializers.

            * g++.dg/warn/Wdangling-pointer-pr110055.C: New testcase.=