Refactor lexical home object binding

test/cctest/test-heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3569 matching lines @@
   CcTest::global()->Set(v8_str("fun2"), fun2);
   CompileRun("function f(a, b) { a(); b(); } f(fun1, fun2);");
 
   Handle<JSFunction> f =
       v8::Utils::OpenHandle(
           *v8::Handle<v8::Function>::Cast(
               CcTest::global()->Get(v8_str("f"))));
 
   Handle<TypeFeedbackVector> feedback_vector(f->shared()->feedback_vector());
 
-  int expected_slots = 3;
+  int expected_slots = 2;
   CHECK_EQ(expected_slots, feedback_vector->ICSlots());
-  int slot1 = 1;
-  int slot2 = 2;
+  int slot1 = 0;
+  int slot2 = 1;
   CHECK(feedback_vector->Get(FeedbackVectorICSlot(slot1))->IsWeakCell());
   CHECK(feedback_vector->Get(FeedbackVectorICSlot(slot2))->IsWeakCell());
 
   SimulateIncrementalMarking(CcTest::heap());
   CcTest::heap()->CollectAllGarbage();
 
   CHECK(!WeakCell::cast(feedback_vector->Get(FeedbackVectorICSlot(slot1)))
              ->cleared());
   CHECK(!WeakCell::cast(feedback_vector->Get(FeedbackVectorICSlot(slot2)))
              ->cleared());
@@ skipping 102 matching lines @@
   // Prepare function f that contains a monomorphic IC for object
   // originating from the same native context.
   CompileRun("function fun() { this.x = 1; }; var obj = new fun();"
              "function f(o) { return o.x; } f(obj); f(obj);");
   Handle<JSFunction> f =
       v8::Utils::OpenHandle(
           *v8::Handle<v8::Function>::Cast(
               CcTest::global()->Get(v8_str("f"))));
 
   Code* ic_before = FindFirstIC(f->shared()->code(), Code::LOAD_IC);
-  CheckVectorIC(f, 1, MONOMORPHIC);
+  CheckVectorIC(f, 0, MONOMORPHIC);
   CHECK(ic_before->ic_state() == DEFAULT);
 
   SimulateIncrementalMarking(CcTest::heap());
   CcTest::heap()->CollectAllGarbage();
 
   Code* ic_after = FindFirstIC(f->shared()->code(), Code::LOAD_IC);
-  CheckVectorIC(f, 1, MONOMORPHIC);
+  CheckVectorIC(f, 0, MONOMORPHIC);
   CHECK(ic_after->ic_state() == DEFAULT);
 }
 
 
 TEST(IncrementalMarkingClearsMonomorphicIC) {
   if (i::FLAG_always_opt) return;
   CcTest::InitializeVM();
   v8::HandleScope scope(CcTest::isolate());
   v8::Local<v8::Value> obj1;
 
   {
     LocalContext env;
     CompileRun("function fun() { this.x = 1; }; var obj = new fun();");
     obj1 = env->Global()->Get(v8_str("obj"));
   }
 
   // Prepare function f that contains a monomorphic IC for object
   // originating from a different native context.
   CcTest::global()->Set(v8_str("obj1"), obj1);
   CompileRun("function f(o) { return o.x; } f(obj1); f(obj1);");
   Handle<JSFunction> f = v8::Utils::OpenHandle(
       *v8::Handle<v8::Function>::Cast(CcTest::global()->Get(v8_str("f"))));
 
   Code* ic_before = FindFirstIC(f->shared()->code(), Code::LOAD_IC);
-  CheckVectorIC(f, 1, MONOMORPHIC);
+  CheckVectorIC(f, 0, MONOMORPHIC);
   CHECK(ic_before->ic_state() == DEFAULT);
 
   // Fire context dispose notification.
   CcTest::isolate()->ContextDisposedNotification();
   SimulateIncrementalMarking(CcTest::heap());
   CcTest::heap()->CollectAllGarbage();
 
   Code* ic_after = FindFirstIC(f->shared()->code(), Code::LOAD_IC);
-  CheckVectorICCleared(f, 1);
+  CheckVectorICCleared(f, 0);
   CHECK(ic_after->ic_state() == DEFAULT);
 }
 
 
 TEST(IncrementalMarkingPreservesPolymorphicIC) {
   if (i::FLAG_always_opt) return;
   CcTest::InitializeVM();
   v8::HandleScope scope(CcTest::isolate());
   v8::Local<v8::Value> obj1, obj2;
 
@@ skipping 11 matching lines @@
 
   // Prepare function f that contains a polymorphic IC for objects
   // originating from two different native contexts.
   CcTest::global()->Set(v8_str("obj1"), obj1);
   CcTest::global()->Set(v8_str("obj2"), obj2);
   CompileRun("function f(o) { return o.x; } f(obj1); f(obj1); f(obj2);");
   Handle<JSFunction> f = v8::Utils::OpenHandle(
       *v8::Handle<v8::Function>::Cast(CcTest::global()->Get(v8_str("f"))));
 
   Code* ic_before = FindFirstIC(f->shared()->code(), Code::LOAD_IC);
-  CheckVectorIC(f, 1, POLYMORPHIC);
+  CheckVectorIC(f, 0, POLYMORPHIC);
   CHECK(ic_before->ic_state() == DEFAULT);
 
   // Fire context dispose notification.
   SimulateIncrementalMarking(CcTest::heap());
   CcTest::heap()->CollectAllGarbage();
 
   Code* ic_after = FindFirstIC(f->shared()->code(), Code::LOAD_IC);
-  CheckVectorIC(f, 1, POLYMORPHIC);
+  CheckVectorIC(f, 0, POLYMORPHIC);
   CHECK(ic_after->ic_state() == DEFAULT);
 }
 
 
 TEST(IncrementalMarkingClearsPolymorphicIC) {
   if (i::FLAG_always_opt) return;
   CcTest::InitializeVM();
   v8::HandleScope scope(CcTest::isolate());
   v8::Local<v8::Value> obj1, obj2;
 
@@ skipping 11 matching lines @@
 
   // Prepare function f that contains a polymorphic IC for objects
   // originating from two different native contexts.
   CcTest::global()->Set(v8_str("obj1"), obj1);
   CcTest::global()->Set(v8_str("obj2"), obj2);
   CompileRun("function f(o) { return o.x; } f(obj1); f(obj1); f(obj2);");
   Handle<JSFunction> f = v8::Utils::OpenHandle(
       *v8::Handle<v8::Function>::Cast(CcTest::global()->Get(v8_str("f"))));
 
   Code* ic_before = FindFirstIC(f->shared()->code(), Code::LOAD_IC);
-  CheckVectorIC(f, 1, POLYMORPHIC);
+  CheckVectorIC(f, 0, POLYMORPHIC);
   CHECK(ic_before->ic_state() == DEFAULT);
 
   // Fire context dispose notification.
   CcTest::isolate()->ContextDisposedNotification();
   SimulateIncrementalMarking(CcTest::heap());
   CcTest::heap()->CollectAllGarbage();
 
-  CheckVectorICCleared(f, 1);
+  CheckVectorICCleared(f, 0);
   CHECK(ic_before->ic_state() == DEFAULT);
 }
 
 
 class SourceResource : public v8::String::ExternalOneByteStringResource {
  public:
   explicit SourceResource(const char* data)
     : data_(data), length_(strlen(data)) { }
 
   virtual void Dispose() {
@@ skipping 1128 matching lines @@
       "  loadIC(obj);"
       "  loadIC(obj);"
       "  return proto;"
       "};");
   Handle<JSFunction> loadIC = GetFunctionByName(isolate, "loadIC");
   {
     v8::HandleScope scope(CcTest::isolate());
     CompileRun("(testIC())");
   }
   heap->CollectAllGarbage();
-  CheckIC(loadIC->code(), Code::LOAD_IC, loadIC->shared(), 1, MONOMORPHIC);
+  CheckIC(loadIC->code(), Code::LOAD_IC, loadIC->shared(), 0, MONOMORPHIC);
   {
     v8::HandleScope scope(CcTest::isolate());
     CompileRun("(testIC())");
   }
-  CheckIC(loadIC->code(), Code::LOAD_IC, loadIC->shared(), 1, MONOMORPHIC);
+  CheckIC(loadIC->code(), Code::LOAD_IC, loadIC->shared(), 0, MONOMORPHIC);
 }
 
 
 TEST(PolymorphicStaysPolymorphicAfterGC) {
   if (FLAG_always_opt) return;
   CcTest::InitializeVM();
   Isolate* isolate = CcTest::i_isolate();
   Heap* heap = isolate->heap();
   v8::HandleScope scope(CcTest::isolate());
   CompileRun(
@@ skipping 10 matching lines @@
       "  poly.x = true;"
       "  loadIC(poly);"
       "  return proto;"
       "};");
   Handle<JSFunction> loadIC = GetFunctionByName(isolate, "loadIC");
   {
     v8::HandleScope scope(CcTest::isolate());
     CompileRun("(testIC())");
   }
   heap->CollectAllGarbage();
-  CheckIC(loadIC->code(), Code::LOAD_IC, loadIC->shared(), 1, POLYMORPHIC);
+  CheckIC(loadIC->code(), Code::LOAD_IC, loadIC->shared(), 0, POLYMORPHIC);
   {
     v8::HandleScope scope(CcTest::isolate());
     CompileRun("(testIC())");
   }
-  CheckIC(loadIC->code(), Code::LOAD_IC, loadIC->shared(), 1, POLYMORPHIC);
+  CheckIC(loadIC->code(), Code::LOAD_IC, loadIC->shared(), 0, POLYMORPHIC);
 }
 
 
 TEST(WeakCell) {
   CcTest::InitializeVM();
   Isolate* isolate = CcTest::i_isolate();
   v8::internal::Heap* heap = CcTest::heap();
   v8::internal::Factory* factory = isolate->factory();
 
   HandleScope outer_scope(isolate);
@@ skipping 860 matching lines @@
   size_t counter2 = 2000;
   tracer->SampleAllocation(time2, counter2, counter2);
   size_t throughput = tracer->AllocationThroughputInBytesPerMillisecond(100);
   CHECK_EQ(2 * (counter2 - counter1) / (time2 - time1), throughput);
   int time3 = 1000;
   size_t counter3 = 30000;
   tracer->SampleAllocation(time3, counter3, counter3);
   throughput = tracer->AllocationThroughputInBytesPerMillisecond(100);
   CHECK_EQ(2 * (counter3 - counter1) / (time3 - time1), throughput);
 }