[#llvm-AtomicScope]
= xref:llvm.adoc[llvm]::AtomicScope
:relfileprefix: ../
:mrdocs:

Target‐neutral memory synchronization scopes.

== Synopsis

Declared in `<llvm/TargetParser/AtomicScope.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
enum class AtomicScope : unsigned int;
----

== Description

The underlying values are ABI‐sensitive and should not be changed.

== Members

[cols="1,4"]
|===
| Name| Description
| `System` 
| System‐wide synchronization (__MEMORY_SCOPE_SYSTEM).
| `Device` 
| Device‐wide synchronization (__MEMORY_SCOPE_DEVICE).
| `Workgroup` 
| Workgroup synchronization (__MEMORY_SCOPE_WRKGRP).
| `Wavefront` 
| Wavefront synchronization (__MEMORY_SCOPE_WVFRNT).
| `Single` 
| Single‐thread synchronization (__MEMORY_SCOPE_SINGLE).
| `Cluster` 
| Cluster synchronization (__MEMORY_SCOPE_CLUSTR).
|===



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