[gomp4] GOMP_target fall back execution

[Jakub Jelinek]

On Wed, Sep 18, 2013 at 02:52:17PM +0400, Ilya Verbin wrote:
> On 18 Sep 10:38, Jakub Jelinek wrote:
> ICC prints:
> 
> inp 1
> 3 0 2 1 0
> 3 0 2 1 1

That doesn't look correct, because for levels above omp_get_level ()
it should return -1.  Either the host fallback inside of target construct
should be shielded away from the other threads (omp_* would pretend as
if it really executed on some other target), or not, but then I don't see
how it could return omp_get_level () of 0.

There are other fuzzy things, like do the threads
outside of target constructs and threads inside of it sum up together
during host fallback for purposes of e.g. thread-limit-var ICV, or not.

	Jakub