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==Just-in-time compilation== {{main|Just-in-time compilation}} Smalltalk programs are usually{{citation needed|date=December 2022}} compiled to [[bytecode]], which is then interpreted by a [[virtual machine]] or dynamically translated into native machine-code. The results of previous message lookups are cached in self-modifying machine-code resulting in very high-performance sends that can out-perform the indirect function calls in C++ virtual method calls.
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