From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 2722A38930D7; Wed, 29 Apr 2020 08:46:38 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2722A38930D7 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1588149998; bh=Du4C1IOMATjFIz7jpA3JpL8gRAQXL4+8b2sWykk0KWU=; h=From:To:Subject:Date:In-Reply-To:References:From; b=FBKl/D1VJINfB2fxISYr73mowPBwK3UMeenFXuHKtE+tNq50aMi+mXZRy1QbjFI2K P7m3OslQprF8zJoydZXfrOiIvhl5hXHFQnV11935iw8XLa3hxuJTOHLKJFoMQbZNez tK/lBlI1nbDkYHEoL4VybBXKOnvHVoCl72xQUaNQ= From: "gabravier at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/94837] Failure to optimize out spurious movbe into bswap Date: Wed, 29 Apr 2020 08:46:38 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 10.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: gabravier at gmail dot com 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: 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 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Apr 2020 08:46:38 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94837 --- Comment #3 from Gabriel Ravier --- Also, I've tested the code from https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D54593 and the optimization in question is no longer in in `-mtune=3Dgeneric`, only with specific architec= tures like `-mtune=3Dk8`=