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

Utility class used to store the names of SSA values after their owning modules have been destroyed.

== Synopsis

Declared in `<llvm/Transforms/Utils/DebugSSAUpdater.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class SSAValueNameMap;
----

== Description

Values are added via `addValue` to receive a corresponding ID, which can then be used to retrieve the name of the SSA value via `getName` at any point. Adding the same value multiple times returns the same ID, making `addValue` idempotent.

== Type Aliases

[cols="1,4"]
|===
| Name| Description
| xref:llvm/SSAValueNameMap/ValueID.adoc[`ValueID`] 
| Opaque identifier for a recorded SSA value name.
|===


== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:llvm/SSAValueNameMap/addValue.adoc[`addValue`] 
| Record `V` and return a stable ID for its name.
| xref:llvm/SSAValueNameMap/getName.adoc[`getName`] 
| Return the stored name for `ID.`
|===



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