From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 00520385802B; Tue, 16 Nov 2021 16:40:58 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 00520385802B From: "acsawdey at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/103197] ppc inline expansion of memcpy/memmove should not use lxsibzx/stxsibx for a single byte Date: Tue, 16 Nov 2021 16:40:58 +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: 10.3.1 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: acsawdey at gcc dot gnu.org X-Bugzilla-Status: NEW 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 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: Tue, 16 Nov 2021 16:40:59 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103197 --- Comment #5 from acsawdey at gcc dot gnu.org --- Bisection reveals that this starts with this commit: 20d70cd2719815d9ea853314775ae5787648ece5 is the first bad commit commit 20d70cd2719815d9ea853314775ae5787648ece5 Author: Alan Modra Date: Thu May 9 08:37:26 2019 +0930 [RS6000] PR89271, gcc.target/powerpc/vsx-simode2.c This patch makes a number of corrections to rs6000_register_move_cost, adds a new register union class, GEN_OR_VSX_REGS, and adjusts insn alternative costs to suit.=