X-Recipient: archive-cygwin@delorie.com X-SWARE-Spam-Status: No, hits=0.8 required=5.0 tests=BAYES_50,SPF_HELO_PASS X-Spam-Check-By: sourceware.org From: "Joseph Quinsey" To: References: Subject: RE: Runtime SEGV from gcc -O3 -march=native Date: Mon, 26 Jul 2010 12:16:03 -0400 Message-ID: <5658D512251040778D1DF5B5D583ADC9@LeakyCauldron> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit In-Reply-To: X-Declude-Sender: jquinsey@entrenet.com [199.246.24.8] X-Declude-Spoolname: Db4bc00d500000bec.smd X-Declude-RefID: str=0001.0A090209.4C4DB4C6.00DB,ss=1,fgs=0 X-Declude-Note: Scanned by Declude 4.10.53 "http://www.declude.com/x-note.htm" X-Declude-Scan: Outgoing Score [-5] at 12:16:11 on 26 Jul 2010 X-Declude-Tests: NOPOSTMASTER [1], SPFPASS [-2], FILTER_COUNTRY [0] X-Country-Chain: CANADA->destination X-Declude-Code: e X-Declude-Recipcount: 1 X-Helo: relay.thehostingservice.com X-RevDNS: firemagma2.entrenet.com Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Again, just FYI, with a simpler example, and with -march=native replaced by k8 or athlon64. Source code: int main(void) { static int foo[4]; int i; for (i = 0; i < 4; i++) foo[i] = 0; return 0; } Compile and run, using Cygwin's current gcc version 4.3.4: gcc -O3 -march=athlon64 foobar.c ./a.exe Segmentation fault (core dumped) -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple