From patchwork Tue Jun 4 13:11:15 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alan Modra X-Patchwork-Id: 248583 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "localhost", Issuer "www.qmailtoaster.com" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 86BB22C0082 for ; Tue, 4 Jun 2013 23:11:30 +1000 (EST) DomainKey-Signature: a=rsa-sha1; c=nofws; d=gcc.gnu.org; h=list-id :list-unsubscribe:list-archive:list-post:list-help:sender:date :from:to:cc:subject:message-id:mime-version:content-type; q=dns; s=default; b=g4sk8tCkY/mOeeCAhxO7CJi6Dfcwhv/hfqwnSvwBC1+hCSOVhd 8qZ+Hn7X3jwXU9zLuzTTjEAIW8w9ONhrnlcg72jaxog3UHcY6hOgEYqm6C/7U9np CJPGj2Kc1xoiGrshsyqufIpR0C3ga+2Y8l7+twXxiZtyvYa+pqWwd9+hU= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=gcc.gnu.org; h=list-id :list-unsubscribe:list-archive:list-post:list-help:sender:date :from:to:cc:subject:message-id:mime-version:content-type; s= default; bh=vc+IcFmzXTTImCvFBE4BSozi4GQ=; b=AHZBufTm20tHZ5grjZ95 NBSNOjkjetR+i8qXmUU2thK0ycRXHByrWRUNr189vDkUUDKWDXEr3rb9LI0YgBjp TbGi537K11etxZ37Ug9GL/dA51j68fFmbV1zTd00xbFMwA3IvQOrnsrbHzj2W/xz jd1/nUDGs7f5H6ultDA0gvQ= Received: (qmail 10039 invoked by alias); 4 Jun 2013 13:11:25 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Delivered-To: mailing list gcc-patches@gcc.gnu.org Received: (qmail 10028 invoked by uid 89); 4 Jun 2013 13:11:24 -0000 X-Spam-SWARE-Status: No, score=-2.1 required=5.0 tests=AWL, BAYES_00, FREEMAIL_FROM, RCVD_IN_DNSWL_NONE, RCVD_IN_HOSTKARMA_YE, SPF_PASS autolearn=ham version=3.3.1 Received: from mail-pd0-f171.google.com (HELO mail-pd0-f171.google.com) (209.85.192.171) by sourceware.org (qpsmtpd/0.84/v0.84-167-ge50287c) with ESMTP; Tue, 04 Jun 2013 13:11:22 +0000 Received: by mail-pd0-f171.google.com with SMTP id z11so223786pdj.2 for ; Tue, 04 Jun 2013 06:11:21 -0700 (PDT) X-Received: by 10.68.171.196 with SMTP id aw4mr28044498pbc.78.1370351480947; Tue, 04 Jun 2013 06:11:20 -0700 (PDT) Received: from bubble.grove.modra.org ([101.166.26.37]) by mx.google.com with ESMTPSA id bs2sm67562992pad.17.2013.06.04.06.11.18 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 04 Jun 2013 06:11:19 -0700 (PDT) Received: by bubble.grove.modra.org (Postfix, from userid 1000) id 8832FEA0073; Tue, 4 Jun 2013 22:41:15 +0930 (CST) Date: Tue, 4 Jun 2013 22:41:15 +0930 From: Alan Modra To: gcc-patches@gcc.gnu.org Cc: David Edelsohn Subject: [RS6000] Enable long-double support for little-endian Message-ID: <20130604131115.GB6878@bubble.grove.modra.org> Mail-Followup-To: gcc-patches@gcc.gnu.org, David Edelsohn MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) This enables long double support for little-endian. It assumes we keep the same ordering as big-endian, ie. the first double is the larger magnitude or inf/nan. Bootstrapped powerpc64-linux. OK to apply? * config/rs6000/ibm-ldouble.c: Enable for little-endian. Index: libgcc/config/rs6000/ibm-ldouble.c =================================================================== --- libgcc/config/rs6000/ibm-ldouble.c (revision 199174) +++ libgcc/config/rs6000/ibm-ldouble.c (working copy) @@ -42,10 +42,10 @@ represented as (1.0, +0.0) or (1.0, -0.0), and the low part of a NaN is don't-care. - This code currently assumes big-endian. */ + This code currently assumes the most significant double is in + the lower numbered register or lower addressed memory. */ -#if (!defined (__LITTLE_ENDIAN__) \ - && (defined (__MACH__) || defined (__powerpc__) || defined (_AIX))) +#if defined (__MACH__) || defined (__powerpc__) || defined (_AIX) #define fabs(x) __builtin_fabs(x) #define isless(x, y) __builtin_isless (x, y)