title: v8 engine: does each bytecode ignition generated has a corresponding bytecode handler in CodeStubAssembly?
body: <p>The reason I asked this question is that if I write a Javascript where there is no hot code in it (therefore it won't need to be optimized by TurboFan, aka short running script), so when I run this Javascript, I assume it will go through the following process:</p>
  <p>js code (ignition)-&gt; bytecode -&gt; codeStubHandler(TurboFan IR) -&gt; assembly code</p>
  <p>And the assembly code generated for all the builtins declared in builtins-definition.h is in a file called embedded.S.</p>
  <p>so every bytecode has a handler to generate assembly code for them directly? is my understanding right? At least this is what I saw when I was debugging through the script.</p>
  <p>Please help me verify.</p>