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

Read bitcode and prepare a module for lazy function deserialization.

== Synopsis

Declared in `<llvm/Bitcode/BitcodeReader.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:llvm/Expected.adoc[Expected<std::unique_ptr<Module>>]
getLazyBitcodeModule(
    xref:llvm/MemoryBufferRef.adoc[MemoryBufferRef] Buffer,
    xref:llvm/LLVMContext.adoc[LLVMContext]& Context,
    bool ShouldLazyLoadMetadata = false,
    bool IsImporting = false,
    xref:llvm/ParserCallbacks.adoc[ParserCallbacks] Callbacks = {});
----

== Description

If ShouldLazyLoadMetadata is true, lazily load metadata as well. If IsImporting is true, this module is being parsed for ThinLTO importing into another module.

== Return Value

A Module prepared for lazy deserialization, or an Error on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *Buffer*
| Memory buffer containing the bitcode.
| *Context*
| LLVM context that owns the created module.
| *ShouldLazyLoadMetadata*
| If true, defer loading metadata.
| *IsImporting*
| If true, parse for ThinLTO importing.
| *Callbacks*
| Optional parser customization callbacks.
|===


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