From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15434 invoked by alias); 24 Nov 2011 03:45:43 -0000 Received: (qmail 15425 invoked by uid 22791); 24 Nov 2011 03:45:43 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,TW_AV 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; Thu, 24 Nov 2011 03:45:28 +0000 From: "vmakarov at redhat dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/50829] avx extra copy for _mm256_insertf128_pd Date: Thu, 24 Nov 2011 07:20:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Keywords: ra X-Bugzilla-Severity: enhancement 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: --- 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: 2011-11/txt/msg02378.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50829 --- Comment #7 from Vladimir Makarov 2011-11-24 03:45:24 UTC --- As for stack allocation. crtl->stack_realign_needed == 1 results in frame_pointer_needed:=1 in ira.c::ira_setup_eliminable_regset. I don't remember the origin of the code. Probably, it is from HJ's stack aligning work. Sorry, if I am wrong. I guess we should re-evaluate frame_pointer_needed at the end of RA if we don't allocate any memory in all RA.