public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "pault at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/47082] [4.6 Regression] [OOP] ICE in gfc_conv_component_ref
Date: Tue, 01 Feb 2011 10:00:00 -0000	[thread overview]
Message-ID: <bug-47082-4-zp1WYrI88n@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-47082-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47082

Paul Thomas <pault at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pault at gcc dot gnu.org

--- Comment #5 from Paul Thomas <pault at gcc dot gnu.org> 2011-02-01 10:00:14 UTC ---
(In reply to comment #3)
> (In reply to comment #2)
> > This does not solve the problem fully, but it reduces it to PR46448:
> > 
> > /tmp/cc9UG1CN.s: Assembler messages:
> > /tmp/cc9UG1CN.s:65: Error: symbol `__copy_m0_t0_' is already defined
> 
> After PR46448 is solved now, the patch fully fixes the test case. Still it
> feels a bit hackish.

Not entirely:
If you change the line in module m1 from-
  class(t0), pointer, private :: idxmap
to
  type(t0), pointer, private :: idxmap

then the reduced testcase of comment #1 compiles.  Comparing themain programme
between the two, you will see a symtree '@2' in the failing case that points to
the vtype, '__vtype_m0_T0'.  I would guess that this has no backend_decl.

Calling gfc_get_derived_type then associates (I think) the backend_decls with
that of the symtree '__vtype_m0_T0', which is somehow pointing to a different
symbol.

I will explore further at lunchtime.

Paul


  parent reply	other threads:[~2011-02-01 10:00 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-28 20:00 [Bug fortran/47082] New: " sfilippone at uniroma2 dot it
2010-12-28 21:05 ` [Bug fortran/47082] " janus at gcc dot gnu.org
2010-12-29 15:59 ` janus at gcc dot gnu.org
2011-01-04 13:28 ` janus at gcc dot gnu.org
2011-01-04 13:31 ` [Bug fortran/47082] [4.6 Regression] " janus at gcc dot gnu.org
2011-01-14 14:24 ` rguenth at gcc dot gnu.org
2011-01-17 19:03 ` jakub at gcc dot gnu.org
2011-02-01 10:00 ` pault at gcc dot gnu.org [this message]
2011-02-01 22:32 ` pault at gcc dot gnu.org
2011-02-02 19:51 ` pault at gcc dot gnu.org
2011-02-02 19:52 ` pault at gcc dot gnu.org

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=bug-47082-4-zp1WYrI88n@http.gcc.gnu.org/bugzilla/ \
    --to=gcc-bugzilla@gcc.gnu.org \
    --cc=gcc-bugs@gcc.gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).