Turn StoreIC::Megamorphic into a builtin, get rid of the non-monomorphic-cache

src/ic/ic-compiler.cc

Index: src/ic/ic-compiler.cc
diff --git a/src/ic/ic-compiler.cc b/src/ic/ic-compiler.cc
index dbdb59589c134d2b380d00bcb257c95b33071101..3c2619d0e6dd45fc0a3c6d7ef25b1a7d8d8f4873 100644
--- a/src/ic/ic-compiler.cc
+++ b/src/ic/ic-compiler.cc
@@ -43,90 +43,35 @@ Handle<Code> PropertyICCompiler::ComputeKeyedLoadMonomorphicHandler(
   return stub;
 }
 
-
 Handle<Code> PropertyICCompiler::ComputeKeyedStoreMonomorphicHandler(
-    Handle<Map> receiver_map, LanguageMode language_mode,
-    KeyedAccessStoreMode store_mode) {
+    Handle<Map> receiver_map, KeyedAccessStoreMode store_mode) {
   Isolate* isolate = receiver_map->GetIsolate();
-  ExtraICState extra_state =
-      KeyedStoreIC::ComputeExtraICState(language_mode, store_mode);
 
   DCHECK(store_mode == STANDARD_STORE ||
          store_mode == STORE_AND_GROW_NO_TRANSITION ||
          store_mode == STORE_NO_TRANSITION_IGNORE_OUT_OF_BOUNDS ||
          store_mode == STORE_NO_TRANSITION_HANDLE_COW);
 
-  PropertyICCompiler compiler(isolate, Code::KEYED_STORE_IC, extra_state);
+  PropertyICCompiler compiler(isolate);
   Handle<Code> code =
       compiler.CompileKeyedStoreMonomorphicHandler(receiver_map, store_mode);
   return code;
 }
 
-
-static void FillCache(Isolate* isolate, Handle<Code> code) {
-  Handle<UnseededNumberDictionary> dictionary = UnseededNumberDictionary::Set(
-      isolate->factory()->non_monomorphic_cache(), code->flags(), code);
-  isolate->heap()->SetRootNonMonomorphicCache(*dictionary);
-}
-
-
-Handle<Code> PropertyICCompiler::ComputeStore(Isolate* isolate,
-                                              InlineCacheState ic_state,
-                                              ExtraICState extra_state) {
-  DCHECK_EQ(MEGAMORPHIC, ic_state);
-  Code::Flags flags = Code::ComputeFlags(Code::STORE_IC, ic_state, extra_state);
-  Handle<UnseededNumberDictionary> cache =
-      isolate->factory()->non_monomorphic_cache();
-  int entry = cache->FindEntry(isolate, flags);
-  if (entry != -1) return Handle<Code>(Code::cast(cache->ValueAt(entry)));
-
-  PropertyICCompiler compiler(isolate, Code::STORE_IC);
-  Handle<Code> code = compiler.CompileStoreMegamorphic(flags);
-
-  FillCache(isolate, code);
-  return code;
-}
-
-
 void PropertyICCompiler::ComputeKeyedStorePolymorphicHandlers(
     MapHandleList* receiver_maps, MapHandleList* transitioned_maps,
-    CodeHandleList* handlers, KeyedAccessStoreMode store_mode,
-    LanguageMode language_mode) {
+    CodeHandleList* handlers, KeyedAccessStoreMode store_mode) {
   Isolate* isolate = receiver_maps->at(0)->GetIsolate();
   DCHECK(store_mode == STANDARD_STORE ||
          store_mode == STORE_AND_GROW_NO_TRANSITION ||
          store_mode == STORE_NO_TRANSITION_IGNORE_OUT_OF_BOUNDS ||
          store_mode == STORE_NO_TRANSITION_HANDLE_COW);
-  ExtraICState extra_state =
-      KeyedStoreIC::ComputeExtraICState(language_mode, store_mode);
-  PropertyICCompiler compiler(isolate, Code::KEYED_STORE_IC, extra_state);
+  PropertyICCompiler compiler(isolate);
   compiler.CompileKeyedStorePolymorphicHandlers(
       receiver_maps, transitioned_maps, handlers, store_mode);
 }
 
 
-Handle<Code> PropertyICCompiler::CompileStoreMegamorphic(Code::Flags flags) {
-  StoreIC::GenerateMegamorphic(masm());
-  Handle<Code> code = GetCodeWithFlags(flags, "CompileStoreMegamorphic");
-  PROFILE(isolate(), CodeCreateEvent(Logger::STORE_MEGAMORPHIC_TAG,
-                                     AbstractCode::cast(*code), 0));
-  return code;
-}
-
-Handle<Code> PropertyICCompiler::GetCode(Code::Kind kind, Handle<Name> name,
-                                         InlineCacheState state) {
-  Code::Flags flags =
-      Code::ComputeFlags(kind, state, extra_ic_state_, cache_holder());
-  Handle<Code> code = GetCodeWithFlags(flags, name);
-  PROFILE(isolate(),
-          CodeCreateEvent(log_kind(code), AbstractCode::cast(*code), *name));
-#ifdef DEBUG
-  code->VerifyEmbeddedObjects();
-#endif
-  return code;
-}
-
-
 void PropertyICCompiler::CompileKeyedStorePolymorphicHandlers(
     MapHandleList* receiver_maps, MapHandleList* transitioned_maps,
     CodeHandleList* handlers, KeyedAccessStoreMode store_mode) {