From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id A858F385770C; Sat, 17 Feb 2024 00:39:42 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A858F385770C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1708130382; bh=//ycf41A3i3TCNI1VOSdqXFNqAPi4pofVjtCSQC9X5o=; h=From:To:Subject:Date:In-Reply-To:References:From; b=aFIy/wcR7XbFw9YvsqGoGaRLSByfu5+8bnG5XWFf4gMHEJJJvF8GRcTjNehUBKPD9 V0DCzPQcdxgxcXznVIMeaZfCleh4m/2dGc+gn/bNka2D4lnnasOpSBF8Jtr3pwwK8l eNPJRGOLVlXVd6lH+tnZH8Nn+f9GovSg8xKulgag= From: "hp at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/113779] Very inefficient m68k code generated for simple copy loop Date: Sat, 17 Feb 2024 00:39:41 +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: 13.2.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: hp 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: 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=3D113779 Hans-Peter Nilsson changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hp at gcc dot gnu.org --- Comment #7 from Hans-Peter Nilsson --- (In reply to Richard Biener from comment #6) > The auto-inc pass is well > structured, so it should be possible to extend it. Or just replace it, as it doesn't look far enough to be able to handle all incdec-opportunities.=