2013年4月1日月曜日 23時32分28秒 UTC+9 井関正也:
> I'm interested in IonMonkey.
>
> I read some code in js/src/ion.But I can't understand how IonMonkey analyze
> the code.
>
> When type javascript code in console or commnad line , What function call
> firstly?
Thanks Pericles.
I found ion::CanEnter and ion::Cannon near js/src/jsinterp.cpp:314.
When I type
* var x = "hoge" + s + "fuga";*
ion::CanEnter return Method_Skipped. (s is pre-declared)
I trace ion::CanEnter.
*MethodStatus
*ion::CanEnter(JSContext *cx, JSScript *script, AbstractFramePtr fp, bool
isConstructing)
↓
*template <typename CompileContext>
*static MethodStatus
*Compile(JSContext *cx, HandleScript script, HandleFunction fun, jsbytecode
*osrPc, bool constructing,
* CompileContext &compileContext)
↓
*if (script->getUseCount() < js_IonOptions.usesBeforeCompile){
* return Method_Skipped;
ion::CanEnter have to return Method_Compiled to call *OptimizeMIR*.
Why ion::CanEnter return Method_Compiled?
I can't execute ion::Cannon from Shell?
Please tell me.
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