[#LLVM_DEFINE_REGISTRY]
= LLVM_DEFINE_REGISTRY
:mrdocs:

Helper macro to define registry class.

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
#define LLVM_DEFINE_REGISTRY(REGISTRY_CLASS)

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== Description

Technically, these macros don't instantiate `Registry` despite the name. They handle underlying storage that used by `Registry` indirectly, enforcing proper declarations/definitions by compilers or linkers. If you forget to place `LLVM_DEFINE_REGISTRY`, your linker will complain about a missing `getRegistryLinkListInstance` definiton.


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