From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id EAC0E3858C83; Wed, 1 Mar 2023 14:32:07 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org EAC0E3858C83 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1677681127; bh=45FHDwoUfamopUK325Cd7pL/J0z95KHC0M79eeNmsA4=; h=From:To:Subject:Date:In-Reply-To:References:From; b=HHjRFfG1Wi53+5upyRdyaNWsX/YQVnVEJkJf9J0pWw4bWcq1qe2uXfFgZYbPx7kbu pMMrKVB8WU4AYjDWP4dx2lW07PfkwD5oIz8W5BPxo1GMBxep2xKhD1VbxuBgTrBBAk iBFK1fGM2TmJO6vFJZRTTZ2uhjG/Sj7GNabalv4Q= From: "dmalcolm at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug analyzer/107565] [12/13 Regression] -Wanalyzer-use-of-uninitialized-value false positive with rdrand Date: Wed, 01 Mar 2023 14:32:07 +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: 12.2.1 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: dmalcolm 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: 12.3 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: attachments.created Message-ID: In-Reply-To: References: 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: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107565 --- Comment #4 from David Malcolm --- Created attachment 54565 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D54565&action=3Dedit Patch that reworks builtin handling I've been testing this patch, but it might be too invasive at this point in= GCC 13; attaching here to back it up while I try a less invasive approach.=