[patch,gomp4] make fortran loop variables implicitly private in openacc

[Cesar Philippidis]

According to section 2.6.1 in the openacc spec, fortran loop variables
should be implicitly private like in openmp. This patch does just so.
Also, while working on this patch, I noticed that I made the check for
variables appearing in multiple openacc clauses too strict. A private
variable may also appear inside a reduction clause. I've also included a
fix for this in this patch.

Is this OK for gomp-4_0-branch?

Thanks,
Cesar
-------------- next part --------------
A non-text attachment was scrubbed...
Name: gfortran-acc-do-private.diff
Type: text/x-patch
Size: 4637 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/fortran/attachments/20140811/62328011/attachment.bin>