From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id DB1E73858C41; Wed, 20 Mar 2024 22:34:50 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org DB1E73858C41
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1710974090;
	bh=dqz0r5h4fl60wTBz6mUr1wBsrZG1PKDMef/NC8UxKQg=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=EG4RfUDykO1Hn74Q3yPlPX5sK+dYNiLiUkIOcfKXl7gXoeMffYIysyV3XD75yb7Hg
	 IXNIO0bktDkWjU5gbCIiVTlcP+uFXu0EpmwNoJUKn6p2vnOezUxLLSK8FwcpuMs94k
	 +enrAdk7MekygjEfG4sb+QwUhTYPDb3xjT+ztzZM=
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug analyzer/109251] [13/14 Regression]
 -Wanalyzer-deref-before-check false positives seen in Linux kernel due to
 check in macros
Date: Wed, 20 Mar 2024 22:34:49 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: analyzer
X-Bugzilla-Version: 13.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: dmalcolm at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 13.3
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-109251-4-ct3i8b6NGL@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-109251-4@http.gcc.gnu.org/bugzilla/>
References: <bug-109251-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109251

--- Comment #1 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by David Malcolm <dmalcolm@gcc.gnu.org>:

https://gcc.gnu.org/g:9093f275e0a3430e4517e782e7f5419d403113f7

commit r14-9586-g9093f275e0a3430e4517e782e7f5419d403113f7
Author: David Malcolm <dmalcolm@redhat.com>
Date:   Wed Mar 20 18:33:11 2024 -0400

    analyzer: fix -Wanalyzer-deref-before-check false positive seen in loop
header macro [PR109251]

    gcc/analyzer/ChangeLog:
            PR analyzer/109251
            * sm-malloc.cc (deref_before_check::emit): Reject cases where t=
he
            check is in a loop header within a macro expansion.
            (deref_before_check::loop_header_p): New.

    gcc/testsuite/ChangeLog:
            PR analyzer/109251
            * c-c++-common/analyzer/deref-before-check-pr109251-1.c: New te=
st.
            * c-c++-common/analyzer/deref-before-check-pr109251-2.c: New te=
st.

    Signed-off-by: David Malcolm <dmalcolm@redhat.com>=