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Small compiled methods that fit into a call site can easily be inlined
using the code patching mechanism. The JVM inlines a method by
patching the method body into a call site and pads the remaining space
with nops. Interestingly, inlining in this manner allows us to inline
a method after all call sites to it have been compiled. This kind of
inlining typically happens because inlining at the time we compile the
caller is not always possible, usually because of class initialization
constraints. More sophisticated techniques for inlining can be found
in [12].