[Libclc-dev] [PATCH 1/1] r600: Add fence implementation, rework barrier

[Matt Arsenault]

On 04/30/2014 06:12 PM, Jan Vesely wrote:
> Matt, is no AS argument a problem? OpenCL allows fences only on local
> and global AS, and since we don't need any for LDS, I thought having
> implicit global AS was ok.

Yes. Fencing all address spaces always would be unfortunate. I would be 
most concerned about not allowing private loads and stores to be moved 
across fences, which should always be OK, and would help reduce register 
usage