From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 84946 invoked by alias); 10 Dec 2017 15:10:02 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 84936 invoked by uid 89); 10 Dec 2017 15:10:02 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.9 required=5.0 tests=BAYES_00,KAM_LAZY_DOMAIN_SECURITY,SPF_HELO_PASS,T_RP_MATCHES_RCVD autolearn=no version=3.3.2 spammy=HTo:D*de.ibm.com X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Sun, 10 Dec 2017 15:10:01 +0000 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 8CBB0C047B75; Sun, 10 Dec 2017 15:10:00 +0000 (UTC) Received: from host1.jankratochvil.net (ovpn-117-202.ams2.redhat.com [10.36.117.202]) by smtp.corp.redhat.com (Postfix) with ESMTPS id CE5F05DA7B; Sun, 10 Dec 2017 15:09:59 +0000 (UTC) Date: Sun, 10 Dec 2017 15:10:00 -0000 From: Jan Kratochvil To: Ulrich Weigand Cc: gdb-patches@sourceware.org Subject: Regression on i686 host: gdb.base/floatn.exp: [RFC v2][2/2] Target FP: Make use of MPFR if available Message-ID: <20171210150956.GA12583@host1.jankratochvil.net> References: <20171116190008.CD22CD80106@oc3748833570.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20171116190008.CD22CD80106@oc3748833570.ibm.com> User-Agent: Mutt/1.9.1 (2017-09-22) X-SW-Source: 2017-12/txt/msg00216.txt.bz2 Hi Ulrich, 2400729ecfd2c7be8b18aeaa822fef5a4b503f8a is the first bad commit commit 2400729ecfd2c7be8b18aeaa822fef5a4b503f8a Author: Ulrich Weigand Date: Wed Nov 22 13:53:43 2017 +0100 Target FP: Make use of MPFR if available FAIL: gdb.base/floatn.exp: the original value of f128 is 3.375 FAIL: gdb.base/floatn.exp: try to change f128 to -3.375 with 'print f128=-3.375' FAIL: gdb.base/floatn.exp: the value of f128 is changed to 30.375 FAIL: gdb.base/floatn.exp: the original value of c128 is 3.375 + 1 * I It is reproducible on Fedora Rawhide i686. Not reproducible on Fedora Rawhide x86_64 and not even on x86_64 -m32. I haven't tried other OSes/versions. Jan print f128^M -$3 = 3.375^M -(gdb) PASS: gdb.base/floatn.exp: the original value of f128 is 3.375 +$3 = 1.375^M +(gdb) FAIL: gdb.base/floatn.exp: the original value of f128 is 3.375 print f128=-3.375^M -$8 = -3.375^M -(gdb) PASS: gdb.base/floatn.exp: try to change f128 to -3.375 with 'print f128=-3.375' +$8 = -1.375^M +(gdb) FAIL: gdb.base/floatn.exp: try to change f128 to -3.375 with 'print f128=-3.375' print f128^M -$13 = 30.375^M -(gdb) PASS: gdb.base/floatn.exp: the value of f128 is changed to 30.375 +$13 = 6.375^M +(gdb) FAIL: gdb.base/floatn.exp: the value of f128 is changed to 30.375 -$18 = 3.375 + 1 * I^M -(gdb) PASS: gdb.base/floatn.exp: the original value of c128 is 3.375 + 1 * I +$18 = 1.375 + 1 * I^M +(gdb) FAIL: gdb.base/floatn.exp: the original value of c128 is 3.375 + 1 * I