From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 23361 invoked by alias); 12 Apr 2011 17:44:11 -0000 Received: (qmail 23348 invoked by uid 22791); 12 Apr 2011 17:44:11 -0000 X-SWARE-Spam-Status: No, hits=-1.9 required=5.0 tests=AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from mel.act-europe.fr (HELO mel.act-europe.fr) (194.98.77.210) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 12 Apr 2011 17:44:08 +0000 Received: from localhost (localhost [127.0.0.1]) by filtered-smtp.eu.adacore.com (Postfix) with ESMTP id 9ABF6CB0378; Tue, 12 Apr 2011 19:44:07 +0200 (CEST) Received: from mel.act-europe.fr ([127.0.0.1]) by localhost (smtp.eu.adacore.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qTDnILIZVR4H; Tue, 12 Apr 2011 19:44:04 +0200 (CEST) Received: from [192.168.1.2] (bon31-9-83-155-120-49.fbx.proxad.net [83.155.120.49]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mel.act-europe.fr (Postfix) with ESMTP id 854A9CB0224; Tue, 12 Apr 2011 19:44:04 +0200 (CEST) From: Eric Botcazou To: Laurent =?iso-8859-1?q?Roug=E9?= Subject: Re: Reintroduce -mflat option on SPARC Date: Tue, 12 Apr 2011 17:44:00 -0000 User-Agent: KMail/1.9.9 Cc: gcc-patches@gcc.gnu.org References: <4D64F83B.5060704@menta.fr> In-Reply-To: <4D64F83B.5060704@menta.fr> MIME-Version: 1.0 Content-Disposition: inline Message-Id: <201104121938.44734.ebotcazou@adacore.com> Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org X-SW-Source: 2011-04/txt/msg00913.txt.bz2 > This patch reintroduce the -mflat option on SPARC. The -mfalt option was > deprecated in february 2004 with GCC 3.4.6. Now, with the support of > LEON processor on GCC, this option has found a new interest. Just a couple of remarks: - the epilogue isn't fully RTL-ized, - delay slot filling for epilogue doesn't work: DELAY_SLOTS_FOR_EPILOGUE isn't defined anymore so defining ELIGIBLE_FOR_EPILOGUE_DELAY is useless. I'm going to fix these minor issues, as well as try to refactor the code a bit. One question: I presume there is no point in supporting -mflat in 64-bit mode for the time being? -- Eric Botcazou