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

Record a symbol that must be preserved during LTO.

== Synopsis

Declared in `<llvm/LTO/legacy/LTOCodeGenerator.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
addMustPreserveSymbol(xref:llvm/StringRef.adoc[StringRef] Sym);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *Sym*
| Symbol name that must not be internalized or discarded.
|===


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