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

Declare analyses required and preserved by this pass.

== Synopsis

Declared in `<llvm/CodeGen/VirtRegMap.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
void
getAnalysisUsage(xref:llvm/AnalysisUsage.adoc[AnalysisUsage]& AU) const override;
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *AU*
| Analysis usage object to update.
|===


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