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

Returns true if `V` is a constant integer zero or an UNDEF node.

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
isNullConstantOrUndef(xref:llvm/SDValue.adoc[SDValue] V);
----

== Return Value

True if `V` is a constant integer zero or an UNDEF node.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *V*
| Value to test.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#