[#llvm-LegalizerHelper-createLibcall-02b]
= xref:llvm.adoc[llvm]::xref:llvm/LegalizerHelper.adoc[LegalizerHelper]::createLibcall
:relfileprefix: ../../
:mrdocs:

Create a libcall to the given `Name` using calling convention `CC.`

== Synopsis

Declared in `<llvm/CodeGen/GlobalISel/LegalizerHelper.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:llvm/LegalizerHelper/LegalizeResult.adoc[LegalizeResult]
createLibcall(
    char const* Name,
    xref:llvm/CallLowering/ArgInfo.adoc[CallLowering::ArgInfo] const& Result,
    xref:llvm/ArrayRef-08.adoc[ArrayRef<CallLowering::ArgInfo>] Args,
    xref:llvm/CallingConv/ID.adoc[CallingConv::ID] CC,
    xref:llvm/LostDebugLocObserver.adoc[LostDebugLocObserver]& LocObserver,
    xref:llvm/MachineInstr.adoc[MachineInstr]* MI = nullptr) const;
----

== Return Value

Result of attempting to legalize the instruction.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *Name*
| Mangled libcall name to emit.
| *Result*
| Call result argument info.
| *Args*
| Call argument infos.
| *CC*
| Calling convention for the libcall.
| *LocObserver*
| Observer that tracks lost debug locations.
| *MI*
| Optional original instruction providing debug location.
|===


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