27     VReg completionType = pg_->AllocReg();  in Prepare()
28     VReg completionValue = pg_->AllocReg();  in Prepare()
30     pg_->CreateGeneratorObj(node, callee);  in Prepare()
31     pg_->StoreAccumulator(node, funcObj_);  in Prepare()
32     pg_->LoadConst(node, Constant::JS_UNDEFINED);  in Prepare()
41     pg_->SetLabel(node, labelSet.TryEnd());  in CleanUp()
42     pg_->SetLabel(node, labelSet.CatchBegin());  in CleanUp()
43     pg_->EmitThrow(node);  in CleanUp()
44     pg_->SetLabel(node, labelSet.CatchEnd());  in CleanUp()
49     pg_->EmitReturn(node);  in DirectReturn()
54     pg_->LoadConst(node, Constant::JS_UNDEFINED);  in ImplicitReturn()
65     RegScope rs(pg_);  in Yield()
66     VReg value = pg_->AllocReg();  in Yield()
67     VReg done = pg_->AllocReg();  in Yield()
68     VReg completionType = pg_->AllocReg();  in Yield()
69     VReg completionValue = pg_->AllocReg();  in Yield()
71     pg_->StoreAccumulator(node, value);  in Yield()
72     pg_->LoadConst(node, Constant::JS_FALSE);  in Yield()
73     pg_->StoreAccumulator(node, done);  in Yield()
74     pg_->CreateIterResultObject(node, value, done);  in Yield()