TurboFan JIT Compiler¶

For full code compilation scenarios, most code may only execute once or twice. In that case, using interpreted execution to run JavaScript code is more efficient than traditional JIT compilation. However, when a piece of code needs to be executed repeatedly many times, the overall efficiency of JIT compilation is higher than interpreted execution — this is where V8's JIT compiler comes in: TurboFan Compiler. When a piece of code is executed repeatedly, or is manually specified for compilation, Ignition passes the bytecode to TurboFan, which performs JIT compilation to generate machine code for the corresponding architecture.