From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 8420 invoked by alias); 7 Jun 2012 14:34:11 -0000 Received: (qmail 8331 invoked by uid 22791); 7 Jun 2012 14:34:10 -0000 X-SWARE-Spam-Status: No, hits=-4.3 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 07 Jun 2012 14:33:57 +0000 From: "tkoenig at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/52861] (missed optimisation) missed transformation to memset with -O3 Date: Thu, 07 Jun 2012 14:34:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: minor X-Bugzilla-Who: tkoenig at gcc dot gnu.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: tkoenig at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 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 X-SW-Source: 2012-06/txt/msg00403.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D52861 --- Comment #6 from Thomas Koenig 2012-06-07 1= 4:33:56 UTC --- Author: tkoenig Date: Thu Jun 7 14:33:51 2012 New Revision: 188305 URL: http://gcc.gnu.org/viewcvs?root=3Dgcc&view=3Drev&rev=3D188305 Log: 2012-06-07 Thomas K=C3=B6nig PR fortran/52861 * frontend-passes.c (optimize_assignment): Don't set the length of an empty string for deferred-length character variables. 2012-06-07 Thomas K=C3=B6nig PR fortran/52861 * gfortran.dg/string_assign_2.f90: New test case. Added: trunk/gcc/testsuite/gfortran.dg/string_assign_2.f90 Modified: trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/frontend-passes.c trunk/gcc/testsuite/ChangeLog