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

Match any null constant or a vector with all elements equal to 0. For vectors, this includes constants with undefined elements.

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:llvm/PatternMatch/is_zero.adoc[is_zero]
m_Zero();
----

== Return Value

A matcher for any null constant or a vector with all elements equal to 0. For vectors, this includes constants with undefined elements.


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