From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 18032 invoked by alias); 8 Nov 2012 16:14:58 -0000 Received: (qmail 17062 invoked by uid 48); 8 Nov 2012 16:14:24 -0000 From: "ebotcazou at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/55177] missed optimizations with __builtin_bswap Date: Thu, 08 Nov 2012 16:14:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: ebotcazou at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: ebotcazou 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: 2012-11/txt/msg00737.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55177 --- Comment #8 from Eric Botcazou 2012-11-08 16:14:23 UTC --- > I think I have the GCC version checks right there, for the availability of the > builtins? That is, __builtin_bswap32() and __builtin_bswap64() since GCC 4.4, > and __builtin_bswap16() since GCC 4.6 on PowerPC or GCC 4.9 on other platforms? 4.8 on other platforms.