From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6440 invoked by alias); 12 May 2003 17:12:02 -0000 Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org Received: (qmail 6383 invoked from network); 12 May 2003 17:12:01 -0000 Received: from unknown (HELO touchme.toronto.redhat.com) (207.219.125.105) by sources.redhat.com with SMTP; 12 May 2003 17:12:01 -0000 Received: from localhost.localdomain (tooth.toronto.redhat.com [172.16.14.29]) by touchme.toronto.redhat.com (Postfix) with ESMTP id 2AFB8800030; Mon, 12 May 2003 13:12:01 -0400 (EDT) Subject: Re: [tree-ssa] Out of SSA status and issues From: Andrew MacLeod To: Jeff Law Cc: Diego Novillo , gcc mailing list In-Reply-To: <200305121708.h4CH86cS015911@speedy.slc.redhat.com> References: <200305121708.h4CH86cS015911@speedy.slc.redhat.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Mon, 12 May 2003 17:12:00 -0000 Message-Id: <1052759521.3373.0.camel@p4> Mime-Version: 1.0 X-SW-Source: 2003-05/txt/msg01176.txt.bz2 On Mon, 2003-05-12 at 13:08, law@redhat.com wrote: > In message <1052755028.2743.368.camel@p4>, Andrew MacLeod writes: > >On another note, shouldn't the into-ssa-pass's copy propagation only be > >turned on when -ftree-copyprop is specified? I think we do it all the > >time right now... thus my problem in libstdc++ even without > >-ftree-copyprop... > Probably... > > > FWIW, I dug up my changes to identify the problem variables (those > occurring in abnormal PHIs) and cobbled together the two lines of > code necessary to use that information to avoid copy propagating > those variables during SSA renaming. > > Interested in playing with it to see if it resolves your problems? > Absolutely :-) Andrew