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

Return true if a live interval already exists for `Reg.`

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
hasInterval(xref:llvm/Register.adoc[Register] Reg) const;
----

== Return Value

True if a live interval already exists for `Reg.`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *Reg*
| Virtual register to query.
|===


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