From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13839 invoked by alias); 18 Jul 2013 10:35:02 -0000 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 Received: (qmail 10060 invoked by uid 48); 18 Jul 2013 10:33:00 -0000 From: "paulo@matos-sorge.com" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/56888] memcpy implementation optimized as a call to memcpy Date: Thu, 18 Jul 2013 10:35:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 4.8.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: paulo@matos-sorge.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-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2013-07/txt/msg00858.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56888 --- Comment #18 from Paulo J. Matos --- I notice(In reply to Brooks Moses from comment #12) > > Now, if this replacement still happens when you compile with -nostdlib, that > would be a bug since it becomes legal code in that case. But that's > somewhat of a separate issue and should be filed separately if it happens. > (We should arguably also have a test for it, if we don't already.) I noticed this in the gcc testsuite with my port. File ./gcc.c-torture/execute/builtins/lib/memset.c contains an implementation of memset called memset and gcc goes into recursion when it finds this for the reasons mentioned above. This causes builtin/memset test to fail.