From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id C46203858418; Wed, 12 Apr 2023 11:33:39 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C46203858418 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1681299219; bh=1lYoNG46SxpId9tBt2P5ICCrlBYzwMqIOlE9z7Y7a0s=; h=From:To:Subject:Date:In-Reply-To:References:From; b=NmhUl/BaKl51noUr/J/jcMCjyV4NvSun3TYc31TZMTeGihdiy2Me3aKR47oyZCVTz Ej35ocxMV7DpTS+WItt0IeSDvyf6dBWjK5YNaMgPbZ7DY+u1m1XsIdbGJ7T0iYPk7l tgoKlNDTT4oIy6FyC4x8BinrqrIoEM/CmvZz01/A= From: "klaus.doldinger64 at googlemail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/109476] Missing optimization for 8bit/8bit multiplication / regression Date: Wed, 12 Apr 2023 11:33:39 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 12.2.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: klaus.doldinger64 at googlemail dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109476 --- Comment #3 from Wilhelm M --- Sorry, I forgot to mention the flags: -Os -mmcu=3Datmega328=20 Maybe CompilerExplorer ist also usefull: https://godbolt.org/z/zsq6PT1xb=