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

If there is a single latch block for this loop, return it. A latch block is a block that contains a branch back to the header.

== Synopsis

Declared in `<llvm/Support/GenericLoopInfo.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:llvm/BasicBlock.adoc[BasicBlock]*
getLoopLatch() const;
----

== Return Value

The unique latch block, or null if there is not exactly one.


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