[#llvm-MachineFunction-begin-07]
= xref:llvm.adoc[llvm]::xref:llvm/MachineFunction.adoc[MachineFunction]::begin
:relfileprefix: ../../
:mrdocs:

Return a const iterator to the first MachineBasicBlock in this function.

== Synopsis

Declared in `<llvm/CodeGen/MachineFunction.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:llvm/MachineFunction/const_iterator.adoc[const_iterator]
begin() const;
----

== Return Value

Const iterator to the first MachineBasicBlock.


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