[Bug other/68813] [openacc] lto1: internal compiler error: in input_varpool_node, at lto-cgraph.c

["cesar at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68813

cesar at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2015-12-16
                 CC|                            |cesar at gcc dot gnu.org
           Assignee|unassigned at gcc dot gnu.org      |cesar at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #2 from cesar at gcc dot gnu.org ---
(In reply to vries from comment #1)
> Related discussion: https://gcc.gnu.org/ml/gcc-patches/2015-07/msg02076.html

I think that's more of a band-aid rather than a proper fix. But I suspect that
patch will still come in handy for routines. 

For some reason, reductions don't like firstprivate variables in fortran. I
tried a similar test in gcc and g++, and neither of those compilers ICE'd. You
can also reduce this test case a little bit by removing the array 'a' and
replacing the reduction with 'sum = sum + 1'. 

I'll work on this.