[PATCH] Fix PR41144

[H.J. Lu]

On Sun, Sep 6, 2009 at 8:46 AM, Richard Guenther <rguenther@suse.de> wrote:
>
> This fixes PR41144 - the C++ FE is somewhat unlucky with the
> order it completes types during template substitution and
> messes up canonical types this way.  The following patch ensures
> we're not recording types with structurall equality requirements
> in the canonical hash table.
>
> Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk.
>
> Richard.
>
> 2009-09-06  Richard Guenther  <rguenther@suse.de>
>
>        PR middle-end/41144
>        * tree.c (build_array_type): Do not record types marked
>        with structural equality in the canonical type hashtable.
>
>        * g++.dg/torture/pr41144.C: New testcase.

This caused:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42447


H.J.