================
@@ -65,6 +115,11 @@ If `A` is *completed-at* a `wait.asyncmark()` operation 
`Y`, then `A`
 
 ## Examples
 
+The mask argument is omitted in the examples below; they all use the empty 
mask,
+so every asyncmark tracks every async operation and there is only one sequence
+to reason about. The {ref}`interleaved stages 
<amdgpu-async-interleaved-stages>`
+example shows what narrower masks add.
----------------
ssahasra wrote:

Examples need to follow the syntax in the spec. If there is no intrinsic that 
takes an empty mask, this example should be changed to take a zero mask.

https://github.com/llvm/llvm-project/pull/220442
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