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

Match a floating‐point negative zero. 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/cstfp_pred_ty.adoc[cstfp_pred_ty<is_neg_zero_fp>]
m_NegZeroFP();
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== Return Value

A matcher for a floating‐point negative zero. For vectors, this includes constants with undefined elements.


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