From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27060 invoked by alias); 30 Jan 2006 19:13:26 -0000 Received: (qmail 27022 invoked by uid 48); 30 Jan 2006 19:13:23 -0000 Date: Mon, 30 Jan 2006 19:13:00 -0000 Message-ID: <20060130191323.27020.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug middle-end/26001] [4.1/4.2 Regression] LAPACK testsuite failure with optimization In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "pinskia at gcc dot gnu dot org" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2006-01/txt/msg03406.txt.bz2 List-Id: ------- Comment #10 from pinskia at gcc dot gnu dot org 2006-01-30 19:13 ------- (In reply to comment #8) > Did the regression also happen on 4.1? We should probably revert Feng Wang's > patch there. But there is a latent bug. I don't know a way to reproduce this without Feng's patch in C or C++, maybe Ada. But the bug is still there. Here is the reduced testcase that passes at -O0 but fails at -O1. CHARACTER*10 INTSTR CHARACTER C1 DATA INTSTR / '0123456789' / C1 = INTSTR(1:1) print *, C1 if(C1 .ne. '0') call abort() end -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26001