Jeroen Ketema 4f5a3d5d6f Make ptx barrier work irrespective of the cl_mem_fence_flags ... This generates a "bar.sync 0” instruction, which not only causes the threads to wait, but does acts as a memory fence, as required by OpenCL. The fence does not differentiate between local and global memory. Unfortunately, there is no similar instruction which does not include a memory fence. Hence, we cannot optimize the case where neither CLK_LOCAL_MEM_FENCE nor CLK_GLOBAL_MEM_FENCE is passed. llvm-svn: 315228		2017-10-09 18:36:48 +00:00
..
barrier.cl	Make ptx barrier work irrespective of the cl_mem_fence_flags	2017-10-09 18:36:48 +00:00