[heap] Introduce enum of garbage collection reasons.

test/cctest/heap/test-mark-compact.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 71 matching lines @@
     v8::HandleScope sc(CcTest::isolate());
     Heap* heap = isolate->heap();
 
     heap::SealCurrentObjects(heap);
 
     int array_length = heap::FixedArrayLenFromSize(kMaxRegularHeapObjectSize);
     Handle<FixedArray> array = isolate->factory()->NewFixedArray(array_length);
 
     // Array should be in the new space.
     CHECK(heap->InSpace(*array, NEW_SPACE));
-    heap->CollectAllGarbage();
-    heap->CollectAllGarbage();
+    CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
+    CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
     CHECK(heap->InSpace(*array, OLD_SPACE));
   }
 }
 
 HEAP_TEST(NoPromotion) {
   // Page promotion allows pages to be moved to old space even in the case of
   // OOM scenarios.
   FLAG_page_promotion = false;
 
   CcTest::InitializeVM();
   Isolate* isolate = CcTest::i_isolate();
   {
     v8::HandleScope sc(CcTest::isolate());
     Heap* heap = isolate->heap();
 
     heap::SealCurrentObjects(heap);
 
     int array_length = heap::FixedArrayLenFromSize(kMaxRegularHeapObjectSize);
     Handle<FixedArray> array = isolate->factory()->NewFixedArray(array_length);
 
     heap->set_force_oom(true);
     // Array should be in the new space.
     CHECK(heap->InSpace(*array, NEW_SPACE));
-    heap->CollectAllGarbage();
-    heap->CollectAllGarbage();
+    CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
+    CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
     CHECK(heap->InSpace(*array, NEW_SPACE));
   }
 }
 
 HEAP_TEST(MarkCompactCollector) {
   FLAG_incremental_marking = false;
   FLAG_retain_maps_for_n_gc = 0;
   CcTest::InitializeVM();
   Isolate* isolate = CcTest::i_isolate();
   Heap* heap = CcTest::heap();
   Factory* factory = isolate->factory();
 
   v8::HandleScope sc(CcTest::isolate());
   Handle<JSGlobalObject> global(isolate->context()->global_object());
 
   // call mark-compact when heap is empty
-  heap->CollectGarbage(OLD_SPACE, "trigger 1");
+  CcTest::CollectGarbage(OLD_SPACE);
 
   // keep allocating garbage in new space until it fails
   const int arraysize = 100;
   AllocationResult allocation;
   do {
     allocation = heap->AllocateFixedArray(arraysize);
   } while (!allocation.IsRetry());
-  heap->CollectGarbage(NEW_SPACE, "trigger 2");
+  CcTest::CollectGarbage(NEW_SPACE);
   heap->AllocateFixedArray(arraysize).ToObjectChecked();
 
   // keep allocating maps until it fails
   do {
     allocation = heap->AllocateMap(JS_OBJECT_TYPE, JSObject::kHeaderSize);
   } while (!allocation.IsRetry());
-  heap->CollectGarbage(MAP_SPACE, "trigger 3");
+  CcTest::CollectGarbage(MAP_SPACE);
   heap->AllocateMap(JS_OBJECT_TYPE, JSObject::kHeaderSize).ToObjectChecked();
 
   { HandleScope scope(isolate);
     // allocate a garbage
     Handle<String> func_name = factory->InternalizeUtf8String("theFunction");
     Handle<JSFunction> function = factory->NewFunction(func_name);
     JSReceiver::SetProperty(global, func_name, function, SLOPPY).Check();
 
     factory->NewJSObject(function);
   }
 
-  heap->CollectGarbage(OLD_SPACE, "trigger 4");
+  CcTest::CollectGarbage(OLD_SPACE);
 
   { HandleScope scope(isolate);
     Handle<String> func_name = factory->InternalizeUtf8String("theFunction");
     CHECK(Just(true) == JSReceiver::HasOwnProperty(global, func_name));
     Handle<Object> func_value =
         Object::GetProperty(global, func_name).ToHandleChecked();
     CHECK(func_value->IsJSFunction());
     Handle<JSFunction> function = Handle<JSFunction>::cast(func_value);
     Handle<JSObject> obj = factory->NewJSObject(function);
 
     Handle<String> obj_name = factory->InternalizeUtf8String("theObject");
     JSReceiver::SetProperty(global, obj_name, obj, SLOPPY).Check();
     Handle<String> prop_name = factory->InternalizeUtf8String("theSlot");
     Handle<Smi> twenty_three(Smi::FromInt(23), isolate);
     JSReceiver::SetProperty(obj, prop_name, twenty_three, SLOPPY).Check();
   }
 
-  heap->CollectGarbage(OLD_SPACE, "trigger 5");
+  CcTest::CollectGarbage(OLD_SPACE);
 
   { HandleScope scope(isolate);
     Handle<String> obj_name = factory->InternalizeUtf8String("theObject");
     CHECK(Just(true) == JSReceiver::HasOwnProperty(global, obj_name));
     Handle<Object> object =
         Object::GetProperty(global, obj_name).ToHandleChecked();
     CHECK(object->IsJSObject());
     Handle<String> prop_name = factory->InternalizeUtf8String("theSlot");
     CHECK_EQ(*Object::GetProperty(object, prop_name).ToHandleChecked(),
              Smi::FromInt(23));
@@ skipping 22 matching lines @@
     do {
       Handle<Map> map = CreateMap();
       map->set_prototype(*root);
       root = factory->NewJSObjectFromMap(map);
     } while (CcTest::heap()->map_space()->MapPointersEncodable());
   }
   // Now, as we don't have any handles to just allocated maps, we should
   // be able to trigger map compaction.
   // To give an additional chance to fail, try to force compaction which
   // should be impossible right now.
-  CcTest::heap()->CollectAllGarbage(Heap::kForceCompactionMask);
+  CcTest::CollectAllGarbage(Heap::kForceCompactionMask);
   // And now map pointers should be encodable again.
   CHECK(CcTest::heap()->map_space()->MapPointersEncodable());
 }
 #endif
 
 
 static int NumberOfWeakCalls = 0;
 static void WeakPointerCallback(const v8::WeakCallbackInfo<void>& data) {
   std::pair<v8::Persistent<v8::Value>*, int>* p =
       reinterpret_cast<std::pair<v8::Persistent<v8::Value>*, int>*>(
@@ skipping 60 matching lines @@
     Object** g1_objects[] = { g1s1.location(), g1s2.location() };
     Object** g2_objects[] = { g2s1.location(), g2s2.location() };
     global_handles->AddObjectGroup(g1_objects, 2, NULL);
     global_handles->SetReference(Handle<HeapObject>::cast(g1s1).location(),
                                  g1c1.location());
     global_handles->AddObjectGroup(g2_objects, 2, NULL);
     global_handles->SetReference(Handle<HeapObject>::cast(g2s1).location(),
                                  g2c1.location());
   }
   // Do a full GC
-  heap->CollectGarbage(OLD_SPACE);
+  CcTest::CollectGarbage(OLD_SPACE);
 
   // All object should be alive.
   CHECK_EQ(0, NumberOfWeakCalls);
 
   // Weaken the root.
   std::pair<Handle<Object>*, int> root_and_id(&root, 1234);
   GlobalHandles::MakeWeak(
       root.location(), reinterpret_cast<void*>(&root_and_id),
       &WeakPointerCallback, v8::WeakCallbackType::kParameter);
   // But make children strong roots---all the objects (except for children)
   // should be collectable now.
   global_handles->ClearWeakness(g1c1.location());
   global_handles->ClearWeakness(g2c1.location());
 
   // Groups are deleted, rebuild groups.
   {
     Object** g1_objects[] = { g1s1.location(), g1s2.location() };
     Object** g2_objects[] = { g2s1.location(), g2s2.location() };
     global_handles->AddObjectGroup(g1_objects, 2, NULL);
     global_handles->SetReference(Handle<HeapObject>::cast(g1s1).location(),
                                  g1c1.location());
     global_handles->AddObjectGroup(g2_objects, 2, NULL);
     global_handles->SetReference(Handle<HeapObject>::cast(g2s1).location(),
                                  g2c1.location());
   }
 
-  heap->CollectGarbage(OLD_SPACE);
+  CcTest::CollectGarbage(OLD_SPACE);
 
   // All objects should be gone. 5 global handles in total.
   CHECK_EQ(5, NumberOfWeakCalls);
 
   // And now make children weak again and collect them.
   GlobalHandles::MakeWeak(
       g1c1.location(), reinterpret_cast<void*>(&g1c1_and_id),
       &WeakPointerCallback, v8::WeakCallbackType::kParameter);
   GlobalHandles::MakeWeak(
       g2c1.location(), reinterpret_cast<void*>(&g2c1_and_id),
       &WeakPointerCallback, v8::WeakCallbackType::kParameter);
 
-  heap->CollectGarbage(OLD_SPACE);
+  CcTest::CollectGarbage(OLD_SPACE);
   CHECK_EQ(7, NumberOfWeakCalls);
 }
 
 
 class TestRetainedObjectInfo : public v8::RetainedObjectInfo {
  public:
   TestRetainedObjectInfo() : has_been_disposed_(false) {}
 
   bool has_been_disposed() { return has_been_disposed_; }
 
@@ skipping 124 matching lines @@
 
 
 TEST(RegressJoinThreadsOnIsolateDeinit) {
   intptr_t size_limit = ShortLivingIsolate() * 2;
   for (int i = 0; i < 10; i++) {
     CHECK_GT(size_limit, ShortLivingIsolate());
   }
 }
 
 #endif  // __linux__ and !USE_SIMULATOR