Sub-group barrier

Author: christiangnrd

lib/intrinsics/Project.toml

@@ -1,7 +1,7 @@
 name = "SPIRVIntrinsics"
 uuid = "71d1d633-e7e8-4a92-83a1-de8814b09ba8"
 authors = ["Tim Besard <tim.besard@gmail.com>"]
-version = "0.5.6"
+version = "0.5.7"
 
 [deps]
 ExprTools = "e2ba6199-217a-4e67-a87a-7c52f15ade04"

lib/intrinsics/src/synchronization.jl

@@ -149,10 +149,14 @@ write_mem_fence(flags) = atomic_work_item_fence(flags, memory_order_release, mem
 
 ## OpenCL execution barriers
 
-export barrier, work_group_barrier
+export barrier, work_group_barrier, sub_group_barrier
 
 @inline work_group_barrier(flags, scope = memory_scope_work_group) =
     control_barrier(Scope.Workgroup, cl_scope_to_spirv(scope),
                     MemorySemantics.SequentiallyConsistent | mem_fence_flags_to_semantics(flags))
 
+@inline sub_group_barrier(flags, scope = memory_scope_sub_group) =
+    control_barrier(Scope.Subgroup, cl_scope_to_spirv(scope),
+                    MemorySemantics.SequentiallyConsistent | mem_fence_flags_to_semantics(flags))
+
 barrier(flags) = work_group_barrier(flags)