Jeroen Ketema 1364d268a4 Implement mem_fence on ptx ...

PTX does not differentiate between read and write fences. Hence, these a
lowered to a mem_fence call. The mem_fence function compiles to the
“member.cta” instruction, which commits all outstanding reads and writes
of a thread such that these become visible to all other threads in the same
CTA (i.e., work-group). The instruction does not differentiate between
global and local memory. Hence, the flags parameter is ignored, except
for deciding whether a “member.cta” instruction should be issued at all.

Reviewed-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 315235

2017-10-09 19:43:04 +00:00

..

mem_fence

Implement mem_fence on ptx

2017-10-09 19:43:04 +00:00

synchronization

…

workitem

…

SOURCES

Implement mem_fence on ptx

2017-10-09 19:43:04 +00:00