From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9783 invoked by alias); 20 Sep 2010 22:26:58 -0000 Received: (qmail 9739 invoked by uid 48); 20 Sep 2010 22:26:44 -0000 Date: Mon, 20 Sep 2010 22:26:00 -0000 Message-ID: <20100920222643.9738.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug fortran/45648] [4.6 regression] Unnecessary temporary for transpose calls as actual argument. In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "mikael at gcc dot gnu dot org" 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: 2010-09/txt/msg02321.txt.bz2 ------- Comment #5 from mikael at gcc dot gnu dot org 2010-09-20 22:26 ------- (In reply to comment #4) > (In reply to comment #2) > > Created an attachment (id=21777) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21777&action=view) [edit] > > patch restoring the previous behaviour. > > > > Applying this patch restored the performance. > Sorry, the patch is missing the 5/5 part of the patch set I have just posted at http://gcc.gnu.org/ml/fortran/2010-09/msg00364.html Without it, gfortran over-optimizes function calls with transposed aliasing arguments. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45648