Implement many KeyedStoreStubs using Crankshaft

src/stub-cache.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 423 matching lines @@
 Handle<Code> StubCache::ComputeKeyedStoreElement(
     Handle<Map> receiver_map,
     StrictModeFlag strict_mode,
     KeyedAccessStoreMode store_mode) {
   Code::ExtraICState extra_state =
       Code::ComputeExtraICState(store_mode, strict_mode);
   Code::Flags flags = Code::ComputeMonomorphicFlags(
       Code::KEYED_STORE_IC, extra_state);
 
   ASSERT(store_mode == STANDARD_STORE ||
-         store_mode == STORE_AND_GROW_NO_TRANSITION);
+         store_mode == STORE_AND_GROW_NO_TRANSITION ||
+         store_mode == STORE_NO_TRANSITION_IGNORE_OUT_OF_BOUNDS ||
+         store_mode == STORE_NO_TRANSITION_HANDLE_COW);
 
   Handle<String> name =
       isolate()->factory()->KeyedStoreElementMonomorphic_string();
   Handle<Object> probe(receiver_map->FindInCodeCache(*name, flags), isolate_);
   if (probe->IsCode()) return Handle<Code>::cast(probe);
 
   KeyedStoreStubCompiler compiler(isolate(), strict_mode, store_mode);
   Handle<Code> code = compiler.CompileStoreElement(receiver_map);
 
   Map::UpdateCodeCache(receiver_map, name, code);
@@ skipping 437 matching lines @@
       receiver_maps, handlers, name, type, PROPERTY);
   return ic;
 }
 
 
 Handle<Code> StubCache::ComputeStoreElementPolymorphic(
     MapHandleList* receiver_maps,
     KeyedAccessStoreMode store_mode,
     StrictModeFlag strict_mode) {
   ASSERT(store_mode == STANDARD_STORE ||
-         store_mode == STORE_AND_GROW_NO_TRANSITION);
+         store_mode == STORE_AND_GROW_NO_TRANSITION ||
+         store_mode == STORE_NO_TRANSITION_IGNORE_OUT_OF_BOUNDS ||
+         store_mode == STORE_NO_TRANSITION_HANDLE_COW);
   Handle<PolymorphicCodeCache> cache =
       isolate_->factory()->polymorphic_code_cache();
   Code::ExtraICState extra_state = Code::ComputeExtraICState(store_mode,
                                                              strict_mode);
   Code::Flags flags =
       Code::ComputeFlags(Code::KEYED_STORE_IC, POLYMORPHIC, extra_state);
   Handle<Object> probe = cache->Lookup(receiver_maps, flags);
   if (probe->IsCode()) return Handle<Code>::cast(probe);
 
   KeyedStoreStubCompiler compiler(isolate_, strict_mode, store_mode);
@@ skipping 740 matching lines @@
 
   // Return the generated code.
   return GetICCode(kind(), Code::NORMAL, factory()->empty_string());
 }
 
 
 Handle<Code> KeyedStoreStubCompiler::CompileStoreElement(
     Handle<Map> receiver_map) {
   ElementsKind elements_kind = receiver_map->elements_kind();
   bool is_jsarray = receiver_map->instance_type() == JS_ARRAY_TYPE;
-  Handle<Code> stub =
-      KeyedStoreElementStub(is_jsarray,
-                            elements_kind,
-                            store_mode_).GetCode(isolate());
+  Handle<Code> stub;
+  if (FLAG_compiled_keyed_stores &&
+      (receiver_map->has_fast_elements() ||
+       receiver_map->has_external_array_elements())) {
+    stub = KeyedStoreFastElementStub(
+        is_jsarray,
+        elements_kind,
+        store_mode_).GetCode(isolate());
+  } else {
+    stub = KeyedStoreElementStub(is_jsarray,
+                                 elements_kind,
+                                 store_mode_).GetCode(isolate());
+  }
 
   __ DispatchMap(receiver(), scratch1(), receiver_map, stub, DO_SMI_CHECK);
 
   TailCallBuiltin(masm(), Builtins::kKeyedStoreIC_Miss);
 
   // Return the generated code.
   return GetICCode(kind(), Code::NORMAL, factory()->empty_string());
 }
 
 
@@ skipping 125 matching lines @@
     bool is_js_array = receiver_map->instance_type() == JS_ARRAY_TYPE;
     ElementsKind elements_kind = receiver_map->elements_kind();
     if (!transitioned_map.is_null()) {
       cached_stub = ElementsTransitionAndStoreStub(
           elements_kind,
           transitioned_map->elements_kind(),
           is_js_array,
           strict_mode(),
           store_mode_).GetCode(isolate());
     } else {
-      cached_stub = KeyedStoreElementStub(
-          is_js_array,
-          elements_kind,
-          store_mode_).GetCode(isolate());
+      if (FLAG_compiled_keyed_stores &&
+          (receiver_map->has_fast_elements() ||
+           receiver_map->has_external_array_elements())) {
+        cached_stub = KeyedStoreFastElementStub(
+            is_js_array,
+            elements_kind,
+            store_mode_).GetCode(isolate());
+      } else {
+        cached_stub = KeyedStoreElementStub(
+            is_js_array,
+            elements_kind,
+            store_mode_).GetCode(isolate());
+      }
     }
     ASSERT(!cached_stub.is_null());
     handlers.Add(cached_stub);
     transitioned_maps.Add(transitioned_map);
   }
   Handle<Code> code =
       CompileStorePolymorphic(receiver_maps, &handlers, &transitioned_maps);
   isolate()->counters()->keyed_store_polymorphic_stubs()->Increment();
   PROFILE(isolate(),
           CodeCreateEvent(Logger::KEYED_STORE_POLYMORPHIC_IC_TAG, *code, 0));
@@ skipping 161 matching lines @@
           Handle<FunctionTemplateInfo>(
               FunctionTemplateInfo::cast(signature->receiver()));
     }
   }
 
   is_simple_api_call_ = true;
 }
 
 
 } }  // namespace v8::internal