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From: "burnus at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/45019] Aliasing of TARGET dummy argument not detected correctly
Date: Thu, 22 Jul 2010 08:40:00 -0000 [thread overview]
Message-ID: <20100722084003.1288.qmail@sourceware.org> (raw)
In-Reply-To: <bug-45019-16338@http.gcc.gnu.org/bugzilla/>
------- Comment #8 from burnus at gcc dot gnu dot org 2010-07-22 08:40 -------
Mine. Additional fix is needed for gfc_symbols_could_alias:
--- a/gcc/fortran/symbol.c
+++ b/gcc/fortran/symbol.c
@@ -2811,6 +2811,17 @@ gfc_symbols_could_alias (gfc_symbol *lsym, gfc_symbol
*rsym)
if (lsym->attr.allocatable && rsym->attr.pointer)
return 1;
+ /* Special case: Argument association, cf. F90 12.4.1.6, F2003 12.4.1.7
+ and F2008 12.5.2.13 items 3b and 4b. The pointer case (a) is already
+ checked above. */
+ if (lsym->attr.target && rsym->attr.target
+ && ((lsym->attr.dummy && !lsym->attr.contiguous
+ && (!lsym->attr.dimension || lsym->as->type == AS_ASSUMED_SHAPE))
+ || (rsym->attr.dummy && !rsym->attr.contiguous
+ && (!rsym->attr.dimension
+ || rsym->as->type == AS_ASSUMED_SHAPE))))
+ return 1;
+
return 0;
}
--
burnus at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |burnus at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2010-07-21 15:57:34 |2010-07-22 08:40:03
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45019
next prev parent reply other threads:[~2010-07-22 8:40 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-21 15:41 [Bug fortran/45019] New: " domob at gcc dot gnu dot org
2010-07-21 15:57 ` [Bug fortran/45019] " burnus at gcc dot gnu dot org
2010-07-21 16:32 ` burnus at gcc dot gnu dot org
2010-07-21 16:44 ` burnus at gcc dot gnu dot org
2010-07-21 16:58 ` burnus at gcc dot gnu dot org
2010-07-21 18:43 ` burnus at gcc dot gnu dot org
2010-07-21 21:37 ` burnus at gcc dot gnu dot org
2010-07-22 6:45 ` burnus at gcc dot gnu dot org
2010-07-22 8:40 ` burnus at gcc dot gnu dot org [this message]
2010-07-22 10:01 ` paul dot richard dot thomas at gmail dot com
2010-07-22 11:35 ` burnus at gcc dot gnu dot org
2010-07-23 8:40 ` burnus at gcc dot gnu dot org
2010-07-23 9:53 ` burnus at gcc dot gnu dot org
2010-09-04 19:21 ` burnus at gcc dot gnu dot org
2010-09-04 19:21 ` burnus at gcc dot gnu dot org
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