5 Commits

Author	SHA1	Message	Date
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
Jan Vesely	a82e080b57	AMDGPU: Implement get_global_offset builtin ... Also fix get_global_id to consider offset No idea how to add this for ptx, so they are stuck with the old get_global_id implementation. v2: split to a separate patch v3: Switch R600 to use implictarg.ptr Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu> llvm-svn: 276443	2016-07-22 17:24:24 +00:00
Peter Collingbourne	7b0ad09cc3	Add barrier.cl to SOURCES, spotted by Jin Wang. ... llvm-svn: 163227	2012-09-05 18:13:55 +00:00
Peter Collingbourne	a385c53413	PTX: move implementations of work-item and synchronisation functions ... to lib, and add header files in generic. Incorporates a patch by Tom Stellard! llvm-svn: 161313	2012-08-05 22:25:37 +00:00
Peter Collingbourne	d5395fbf03	Initial commit. ... llvm-svn: 147756	2012-01-08 22:09:58 +00:00