From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 31835 invoked by alias); 13 Nov 2014 00:57:37 -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 31779 invoked by uid 48); 13 Nov 2014 00:57:33 -0000 From: "mednafen at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/63843] New: wrong code generation at -O1 and higher Date: Thu, 13 Nov 2014 00:57:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: 5.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mednafen at gmail dot com X-Bugzilla-Status: UNCONFIRMED 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: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter attachments.created Message-ID: 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: 2014-11/txt/msg01067.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63843 Bug ID: 63843 Summary: wrong code generation at -O1 and higher Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: mednafen at gmail dot com Created attachment 33955 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33955&action=edit Testcase, good output is 8181. trunk revision 217451 gcc (GCC) 5.0.0 20141112 (experimental) Linux x86_64 $ ~mednafen/gcc-dev/bin/gcc -O0 -o tc tc.c $ ./tc 8181 $ ~mednafen/gcc-dev/bin/gcc -O1 -o tc tc.c $ ./tc ff81 $ ~mednafen/gcc-dev/bin/gcc -O1 -fno-tree-copyrename -o tc tc.c $ ./tc 8181