VectorICs: New interface descriptor for vector transitioning stores.

src/code-stubs.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/code-stubs.h"
 
 #include <sstream>
 
 #include "src/bootstrapper.h"
 #include "src/cpu-profiler.h"
@@ skipping 635 matching lines @@
         FUNCTION_ADDR(Runtime_KeyedStoreIC_MissFromStubFailure));
   }
 }
 
 
 CallInterfaceDescriptor HandlerStub::GetCallInterfaceDescriptor() const {
   if (kind() == Code::LOAD_IC || kind() == Code::KEYED_LOAD_IC) {
     return LoadWithVectorDescriptor(isolate());
   } else {
     DCHECK(kind() == Code::STORE_IC || kind() == Code::KEYED_STORE_IC);
-    return StoreDescriptor(isolate());
+    return FLAG_vector_stores ? VectorStoreICDescriptor(isolate())
+                              : StoreDescriptor(isolate());
   }
 }
 
 
 void StoreFastElementStub::InitializeDescriptor(
     CodeStubDescriptor* descriptor) {
   descriptor->Initialize(
       FUNCTION_ADDR(Runtime_KeyedStoreIC_MissFromStubFailure));
 }
 
 
 void ElementsTransitionAndStoreStub::InitializeDescriptor(
     CodeStubDescriptor* descriptor) {
   descriptor->Initialize(
       FUNCTION_ADDR(Runtime_ElementsTransitionAndStoreIC_Miss));
 }
 
 
 void ToObjectStub::InitializeDescriptor(CodeStubDescriptor* descriptor) {
   descriptor->Initialize(Runtime::FunctionForId(Runtime::kToObject)->entry);
 }
 
 
 CallInterfaceDescriptor StoreTransitionStub::GetCallInterfaceDescriptor()
     const {
+  if (FLAG_vector_stores) {
+    return VectorStoreTransitionDescriptor(isolate());
+  }
   return StoreTransitionDescriptor(isolate());
 }
 
+
+CallInterfaceDescriptor
+ElementsTransitionAndStoreStub::GetCallInterfaceDescriptor() const {
+  if (FLAG_vector_stores) {
+    return VectorStoreTransitionDescriptor(isolate());
+  }
+  return StoreTransitionDescriptor(isolate());
+}
+
 
 void FastNewClosureStub::InitializeDescriptor(CodeStubDescriptor* descriptor) {
   descriptor->Initialize(
       Runtime::FunctionForId(Runtime::kNewClosureFromStubFailure)->entry);
 }
 
 
 void FastNewContextStub::InitializeDescriptor(CodeStubDescriptor* d) {}
 
 
@@ skipping 375 matching lines @@
 
   if (type->Is(Type::UntaggedPointer())) {
     return Representation::External();
   }
 
   DCHECK(!type->Is(Type::Untagged()));
   return Representation::Tagged();
 }
 }  // namespace internal
 }  // namespace v8