Ignition (V8 interpreter)

RU: Ignition (V8 интерпретатор)

V8's bytecode interpreter, first enabled in V8 5.3 / Chrome 53 (for low-memory Android devices) and made the universal pipeline in V8 5.9 / Chrome 59. When JavaScript source is parsed, Ignition compiles the AST to a compact register-based bytecode and executes it. It simultaneously collects type feedback into FeedbackVector slots; once a function is hot enough, TurboFan reads that feedback to compile optimized machine code.