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

Encapsulate the names of CFI target functions for ThinLTO export.

== Synopsis

Declared in `<llvm/IR/ModuleSummaryIndex.h>`

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

== Description

It interfaces with ThinLTO to determine efficiently which of the names need to be exported for a particular module.

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:llvm/CfiFunctionIndex/2constructor-0a.adoc[`CfiFunctionIndex`]         [.small]#[constructor]#
| Constructors
| xref:llvm/CfiFunctionIndex/addSymbolWithThinLTOGUID.adoc[`addSymbolWithThinLTOGUID`] 
| Add the function name and the GUID that ThinLTO uses for it.
| xref:llvm/CfiFunctionIndex/contains.adoc[`contains`] 
| Return true if `Name` is recorded as a CFI target function.
| xref:llvm/CfiFunctionIndex/empty.adoc[`empty`] 
| Return true if no CFI target function names are recorded.
| xref:llvm/CfiFunctionIndex/getExportedThinLTOGUIDs.adoc[`getExportedThinLTOGUIDs`] 
| get the set of GUIDs that should also be exported because they are the GUIDs of the cfi functions encapsulated here.
| xref:llvm/CfiFunctionIndex/getNamesForGUID.adoc[`getNamesForGUID`] 
| get the name(s) associated with a given ThinLTO GUID. This enables efficient identification of the subset of names that should be included in a module summary.
| xref:llvm/CfiFunctionIndex/getSortedSymbols.adoc[`getSortedSymbols`] 
| API used for serialization, e.g. YAML.
|===



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