X-Recipient:	archive-cygwin AT delorie DOT com
X-Original-To:	cygwin AT cygwin DOT com
Delivered-To:	cygwin AT cygwin DOT com
DMARC-Filter:	OpenDMARC Filter v1.3.2 sourceware.org D25963858039
Authentication-Results:	sourceware.org;
	dmarc=none (p=none dis=none) header.from=t-online.de
Authentication-Results:	sourceware.org;
	spf=none smtp.mailfrom=HBBroeker AT t-online DOT de
Subject:	Re: [ANNOUNCEMENT] Test: {mingw64-{i686,x86_64}-,}gcc-11.1.0-0.1
To:	cygwin AT cygwin DOT com
References:	<announce DOT 871raewgfm DOT fsf AT Rainer DOT invalid>
	<f3f9f296-cde2-1549-e7e9-38c1c855d5df AT towo DOT net>
	<87mtszzsvd DOT fsf AT Rainer DOT invalid>
	<29a53ee2-cac3-6815-792d-36f96be47bd1 AT towo DOT net>
From:	=?UTF-8?Q?Hans-Bernhard_Br=c3=b6ker?= <HBBroeker AT t-online DOT de>
Message-ID:	<5d911b7f-70c6-01f5-a353-d8735be46ecd@t-online.de>
Date:	Thu, 13 May 2021 21:33:19 +0200
User-Agent:	Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101
	Thunderbird/78.10.1
MIME-Version:	1.0
In-Reply-To:	<29a53ee2-cac3-6815-792d-36f96be47bd1@towo.net>
X-ID:	VygkvGZ18h1x+de31X2GcjRV2FkUR7mPBIEa2MRzFLTZljNWzZNArx5t7zzM789ZhS
X-TOI-EXPURGATEID:	150726::1620934403-0000B3FF-6F030DF4/0/0 CLEAN NORMAL
X-TOI-MSGID:	1cb3ba82-841b-4142-9d3b-4a3c7bbc5f8a
X-Spam-Status:	No, score=-2.1 required=5.0 tests=BAYES_00, FREEMAIL_FROM,
	KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, KAM_NUMSUBJECT, NICE_REPLY_A,
	RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NONE,
	TXREP autolearn=no autolearn_force=no version=3.4.2
X-Spam-Checker-Version:	SpamAssassin 3.4.2 (2018-09-13) on
	server2.sourceware.org
X-BeenThere:	cygwin AT cygwin DOT com
X-Mailman-Version:	2.1.29
List-Id:	General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe:	<https://cygwin.com/mailman/options/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive:	<https://cygwin.com/pipermail/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe:	<https://cygwin.com/mailman/listinfo/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
Errors-To:	cygwin-bounces AT cygwin DOT com
Sender:	"Cygwin" <cygwin-bounces AT cygwin DOT com>

Am 13.05.2021 um 10:57 schrieb Thomas Wolff:

> The crash vanishes after removing a few lines from a conditional (if 
> block) where the condition is false.

A conditions that's always false, or one that's false during the 
execution of a particular test case?

> This smells like wrong calculation of a relative jump (Intel "short 
> jump") by the optimizer.

If it were that simple, the problematic change should stand out like the 
proverbial sore thumb when comparing assembly listings of the two cases. 
  Does it?

-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple

- Raw text -