bool invalidateBailedOutScripts() {
RootedScript script(cx_, fun_->toFunction()->nonLazyScript());
// Sometimes the script is collected or invalidated already,
// for example when a full GC runs at an inconvenient time.
if (!script->hasParallelIonScript()) {
JS_ASSERT(hasNoPendingInvalidations());
return true;
}
IonScript *ion = script->parallelIonScript();
JS_ASSERT(pendingInvalidations.length() == ion->parallelInvalidatedScriptEntries());
Vector<types::RecompileInfo> invalid(cx_);
for (uint32_t i = 0; i < pendingInvalidations.length(); i++) {
JSScript *script = pendingInvalidations[i];
if (script && !hasScript(invalid, script)) {
JS_ASSERT(script->hasParallelIonScript());
if (!invalid.append(script->parallelIonScript()->recompileInfo()))
return false;
ion->parallelInvalidatedScriptList()[i] = script;
}
pendingInvalidations[i] = NULL;
}
Invalidate(cx_, invalid);
return true;
}
MethodStatus compileForParallelExecution() {
// The kernel should be a self-hosted function.
if (!fun_->isFunction())
return Method_Skipped;
RootedFunction callee(cx_, fun_->toFunction());
if (!callee->isInterpreted() || !callee->isSelfHostedBuiltin())
return Method_Skipped;
if (callee->isInterpretedLazy() && !callee->initializeLazyScript(cx_))
return Method_Error;
// If this function has not been run enough to enable parallel
// execution, perform a warmup.
RootedScript script(cx_, callee->nonLazyScript());
if (script->getUseCount() < js_IonOptions.usesBeforeCompileParallel) {
if (!warmupForParallelExecution())
return Method_Error;
}
if (script->hasParallelIonScript() &&
!script->parallelIonScript()->hasInvalidatedCallTarget())
{
Spew(SpewOps, "Already compiled");
return Method_Compiled;
}
Spew(SpewOps, "Compiling all reachable functions");
ParallelCompileContext compileContext(cx_);
if (!compileContext.appendToWorklist(script))
return Method_Error;
MethodStatus status = compileContext.compileTransitively();
if (status != Method_Compiled)
return status;
// it can happen that during transitive compilation, our
// callee's parallel ion script is invalidated or GC'd. So
// before we declare success, double check that it's still
// compiled!
if (!callee->nonLazyScript()->hasParallelIonScript())
return Method_Skipped;
return Method_Compiled;
}
virtual bool parallel(ForkJoinSlice &slice) {
#ifndef JS_ION
JS_NOT_REACHED("Parallel execution without ion");
return false;
#else
Spew(SpewOps, "Up");
// Make a new IonContext for the slice, which is needed if we need to
// re-enter the VM.
IonContext icx(cx_, NULL);
JS_ASSERT(pendingInvalidations[slice.sliceId] == NULL);
JS_ASSERT(fun_->isFunction());
RootedFunction callee(cx_, fun_->toFunction());
if (!callee->nonLazyScript()->hasParallelIonScript()) {
// Sometimes, particularly with GCZeal, the parallel ion
// script can be collected between starting the parallel
// op and reaching this point. In that case, we just fail
// and fallback.
Spew(SpewOps, "Down (Script no longer present)");
return false;
}
ParallelIonInvoke<3> fii(cx_, callee, 3);
fii.args[0] = Int32Value(slice.sliceId);
fii.args[1] = Int32Value(slice.numSlices);
fii.args[2] = BooleanValue(false);
bool ok = fii.invoke(cx_);
JS_ASSERT(ok == !slice.abortedScript);
if (!ok) {
JSScript *script = slice.abortedScript;
Spew(SpewBailouts, "Aborted script: %p (hasParallelIonScript? %d)",
script, script->hasParallelIonScript());
JS_ASSERT(script->hasParallelIonScript());
pendingInvalidations[slice.sliceId] = script;
}
Spew(SpewOps, "Down");
return ok;
#endif // JS_ION
}
JSObject *
js_InitBooleanClass(JSContext *cx, HandleObject obj)
{
JS_ASSERT(obj->isNative());
Rooted<GlobalObject*> global(cx, &obj->asGlobal());
RootedObject booleanProto (cx, global->createBlankPrototype(cx, &BooleanClass));
if (!booleanProto)
return NULL;
booleanProto->setFixedSlot(BooleanObject::PRIMITIVE_VALUE_SLOT, BooleanValue(false));
RootedFunction ctor(cx, global->createConstructor(cx, Boolean, cx->names().Boolean, 1));
if (!ctor)
return NULL;
if (!LinkConstructorAndPrototype(cx, ctor, booleanProto))
return NULL;
if (!DefinePropertiesAndBrand(cx, booleanProto, NULL, boolean_methods))
return NULL;
Handle<PropertyName*> valueOfName = cx->names().valueOf;
RootedFunction
valueOf(cx, js_NewFunction(cx, NullPtr(), bool_valueOf, 0, JSFunction::NATIVE_FUN,
global, valueOfName));
if (!valueOf)
return NULL;
RootedValue value(cx, ObjectValue(*valueOf));
if (!JSObject::defineProperty(cx, booleanProto, valueOfName, value,
JS_PropertyStub, JS_StrictPropertyStub, 0))
{
return NULL;
}
global->setBooleanValueOf(valueOf);
if (!DefineConstructorAndPrototype(cx, global, JSProto_Boolean, ctor, booleanProto))
return NULL;
return booleanProto;
}
JSObject *
js_InitBooleanClass(JSContext *cx, JSObject *obj)
{
JS_ASSERT(obj->isNative());
Rooted<GlobalObject*> global(cx, &obj->asGlobal());
RootedObject booleanProto (cx, global->createBlankPrototype(cx, &BooleanClass));
if (!booleanProto)
return NULL;
booleanProto->setFixedSlot(BooleanObject::PRIMITIVE_VALUE_SLOT, BooleanValue(false));
RootedFunction ctor(cx, global->createConstructor(cx, Boolean, CLASS_NAME(cx, Boolean), 1));
if (!ctor)
return NULL;
if (!LinkConstructorAndPrototype(cx, ctor, booleanProto))
return NULL;
if (!DefinePropertiesAndBrand(cx, booleanProto, NULL, boolean_methods))
return NULL;
Rooted<PropertyName*> valueOfName(cx, cx->runtime->atomState.valueOfAtom);
Rooted<JSFunction*> valueOf(cx,
js_NewFunction(cx, NULL, bool_valueOf, 0, 0, global, valueOfName));
if (!valueOf)
return NULL;
if (!booleanProto->defineProperty(cx, valueOfName, ObjectValue(*valueOf),
JS_PropertyStub, JS_StrictPropertyStub, 0))
{
return NULL;
}
global->setBooleanValueOf(valueOf);
if (!DefineConstructorAndPrototype(cx, global, JSProto_Boolean, ctor, booleanProto))
return NULL;
return booleanProto;
}
bool append(uint32_t index, HandleValue v) {
JS_ASSERT(!array->getOps()->getElement);
return !!baseops::DefineElement(cx, array, index, v, JS_PropertyStub, JS_StrictPropertyStub,
JSPROP_ENUMERATE);
}