From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15574 invoked by alias); 4 Dec 2011 04:09:25 -0000 Received: (qmail 15432 invoked by uid 22791); 4 Dec 2011 04:09:23 -0000 X-SWARE-Spam-Status: No, hits=-2.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Sun, 04 Dec 2011 04:09:09 +0000 From: "vmakarov at redhat dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug other/50775] Register allocator sets up frame and frame pointer with low register pressure Date: Sun, 04 Dec 2011 04:09:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: other X-Bugzilla-Keywords: ra X-Bugzilla-Severity: normal X-Bugzilla-Who: vmakarov at redhat dot com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.7.0 X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2011-12/txt/msg00302.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50775 --- Comment #6 from Vladimir Makarov 2011-12-04 04:09:06 UTC --- (In reply to comment #5) > (In reply to comment #4) > > > Wrong profitable hard regs calculation for register files requiring aligned > > start register was a merging problem with a patch for allocation without cover > > classes. > > > > I'll try make a patch this week to solve the problem. > > Thanks you are taking care of this. Will it also improve the situation for > 3-byte types as introduced in PR50931? 3-byte types also start in even > registers. I think it will improve. Sorry for the delay with the patch. The changes are big (the patch is about 1700 lines long) so I need a thorough testing.