WebAssembly effort (#721)

runtime/src/main/cpp/Memory.cpp

@@ -94,7 +94,7 @@ struct MemoryState {
 namespace {
 
 // TODO: can we pass this variable as an explicit argument?
-__thread MemoryState* memoryState = nullptr;
+THREAD_LOCAL_VARIABLE MemoryState* memoryState = nullptr;
 
 inline bool isFreeable(const ContainerHeader* header) {
   return (header->refCount_ & CONTAINER_TAG_MASK) < CONTAINER_TAG_PERMANENT;
@@ -649,6 +649,13 @@ OBJ_GETTER(InitInstance,
 
   ObjHeader* object = AllocInstance(type_info, OBJ_RESULT);
   UpdateRef(location, object);
+#if KONAN_NO_EXCEPTIONS
+  ctor(object);
+#if TRACE_MEMORY
+  memoryState->globalObjects->push_back(location);
+#endif
+  return object;
+#else
   try {
     ctor(object);
 #if TRACE_MEMORY
@@ -660,6 +667,7 @@ OBJ_GETTER(InitInstance,
     UpdateRef(location, nullptr);
     throw;
   }
+#endif
 }
 
 void SetRef(ObjHeader** location, const ObjHeader* object) {
@@ -882,7 +890,9 @@ OBJ_GETTER(DerefStablePointer, KNativePtr pointer) {
 }
 
 OBJ_GETTER(AdoptStablePointer, KNativePtr pointer) {
+#ifndef KONAN_NO_THREADS
   __sync_synchronize();
+#endif
   KRef ref = reinterpret_cast<KRef>(pointer);
   // Somewhat hacky.
   *OBJ_RESULT = ref;