From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 145C93858421; Wed, 29 Mar 2023 18:39:10 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 145C93858421 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1680115150; bh=PCeVZQoMFqbFRaXiF61uQVTpCskruA6UZXylFCEdm3Y=; h=From:To:Subject:Date:In-Reply-To:References:From; b=kNd/AAmldbS9DBz2bUdcmOvGyfLilooqCwK1PJi5XFG4uQ4PJEd7L8u+Ca4gr0IIj 2rtv326OQPXtWyaHauwpw6wSmkF438NE+rytzIuawa91wPKufxGgzKYfcKOXyalRdm namKIr6aZpz8tXd9jh6yuXB5LE06u4X2TZL8JtzI= From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/103559] Can't optimize away < 0 check on sqrt Date: Wed, 29 Mar 2023 18:39:09 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 12.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: enhancement X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: DUPLICATE X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc 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=3D103559 Jakub Jelinek changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #7 from Jakub Jelinek --- The HW sqrt certainly handles NAN input by returning NAN output, the questi= on is if it is required to set some errno in that case as well or not. One wo= uld need to check what different libcs do in that case.=