From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 16281 invoked by alias); 5 Feb 2015 19:34:02 -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 16246 invoked by uid 48); 5 Feb 2015 19:33:58 -0000 From: "manuel.reimer at gmx dot de" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/64953] Compiling sourcecode for STM32F103 causes USB errors with some optimization settings Date: Thu, 05 Feb 2015 19:34:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: 4.9.2 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: manuel.reimer at gmx dot de 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: 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: 2015-02/txt/msg00504.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64953 --- Comment #1 from manuel.reimer at gmx dot de --- One addition: The same problem exists with other "USB based" sourcecode. For example with this one: https://github.com/j1rie/IRMP_STM32/ olebowle at vdr-portal.de did a nice overview on which optimization settings cause the resulting software to fail on which compiler: http://www.vdr-portal.de/board18-vdr-hardware/board13-fernbedienungen/p1231315-irmp-auf-stm32-ein-usb-ir-empf%C3%A4nger-sender-einschalter-mit-wakeup-timer/#post1231315