ordered_queue is not derived from sycl::queue

[kevin-harms]

llvm/sycl/doc/extensions/OrderedQueue/ordered_queue.h

Line 2 in dd329d6

class ordered_queue {

Given the definition of sycl::ordered_queue, it can not be passed as a parameter to functions or methods that take a sycl::queue because it is not derived from sycl::queue. This limits the usefulness of sycl::ordered_queue. (Or all existing code needs to be updated to accept both types).

[jbrodman]

Hi,

Based on feedback, we decided to deprecate ordered_queue in favor of: #1035

Now there is only just the queue class. The 'ordered'ness is determined by a property of the queue and can be queried by the programmer.

[bader]

@jbrodman, I think we need to update the extension documentation.

[jbrodman]

@bader, we did: #1042
:)

[bader]

I mean make it obvious that first version is deprecated. It's done in the source code only.
If someone reads only documentation there are two legit versions of the proposal.
:)

[jbrodman]

Aha.

Done: #1131

[bader]

Fixed by #1035, #1042 and #1131.

[bader]

@kevin-harms, let us know if you have any other issues with using ordered queues.