From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-395957-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 18266 invoked by alias); 5 Jul 2012 16:33:02 -0000
Received: (qmail 18222 invoked by uid 22791); 5 Jul 2012 16:32:59 -0000
X-SWARE-Spam-Status: No, hits=-4.3 required=5.0	tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED,TW_HN
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, 05 Jul 2012 16:32:46 +0000
From: "j.moyard at voila dot fr" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/53818] -finit-local-zero -fno-automatic: Function result cannot have initializer
Date: Thu, 05 Jul 2012 16:33:00 -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: rejects-valid
X-Bugzilla-Severity: normal
X-Bugzilla-Who: j.moyard at voila dot fr
X-Bugzilla-Status: NEW
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Changed-Fields:
Message-ID: <bug-53818-4-mAihzgrD7Z@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-53818-4@http.gcc.gnu.org/bugzilla/>
References: <bug-53818-4@http.gcc.gnu.org/bugzilla/>
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
MIME-Version: 1.0
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
X-SW-Source: 2012-07/txt/msg00543.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53818

--- Comment #5 from johnjohn <j.moyard at voila dot fr> 2012-07-05 16:32:44 UTC ---
(In reply to comment #3)
> (In reply to comment #0)
> > But when I integrate '-fno-automatic' option, I obtain this error message :
> > function testing(date1, date2) result(test)
> >                                           1
> > Error: Function result 'test' at (1) cannot have an initializer
> 
> I helps if you tell up all options. The issue seemingly only occurs with
> -fno-automatic *and* -finit-local-zero (or -finit-logical=true|false).
> 
> 
> Two things surprise me:
> 
> a) Why are there two initializer, when looking at the dump
> (-fdump-tree-original). (Requires that one does not have -fno-automatic) - the
> should be only one, shouldn't it?
> 
> 
> b) Why does this only trigger with -fno-automatic? The code currently has the
> following. At a glance, it should always trigger and the
> apply_default_init_local should be after the checks (together with the
> simplify):
> 
> resolve_fl_variable (gfc_symbol *sym, int mp_flag)
> ...
>   if (sym->value == NULL && sym->attr.referenced)
>     apply_default_init_local (sym); /* Try to apply a default initialization. 
> */
> ...
>   /* Reject illegal initializers.  */
>   if (!sym->mark && sym->value)
> ...
>       else if (sym->attr.result)
>         gfc_error ("Function result '%s' at %L cannot have an initializer",
>                    sym->name, &sym->declared_at);

Yes in fact, I use finit-local with fno-automatic!