Add note about need to synchronize

christiangnrd · christiangnrd · commit 8c38a761858d · 2026-01-02T00:20:06.000-04:00
diff --git a/src/intrinsics.jl b/src/intrinsics.jl
@@ -192,6 +192,8 @@ localmemory(::Type{T}, dims) where {T} = localmemory(T, Val(dims))
     shfl_down(val::T, offset::Integer)::T where T
 
 Read `val` from a lane with higher id given by `offset`.
+When writing kernels using this function, it should be
+assumed that it is not synchronized.
 
 !!! note
     Backend implementations **must** implement:
