Use a register spec for StoreIC and KeyedStoreIC.

src/code-stubs-hydrogen.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/v8.h"
 
 #include "src/code-stubs.h"
 #include "src/field-index.h"
 #include "src/hydrogen.h"
 #include "src/lithium.h"
@@ skipping 585 matching lines @@
 
 
 Handle<Code> StringLengthStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
 
 template <>
 HValue* CodeStubGraphBuilder<KeyedStoreFastElementStub>::BuildCodeStub() {
   BuildUncheckedMonomorphicElementAccess(
-      GetParameter(0), GetParameter(1), GetParameter(2),
+      GetParameter(StoreIC::kReceiverIndex),
+      GetParameter(StoreIC::kNameIndex),
+      GetParameter(StoreIC::kValueIndex),
       casted_stub()->is_js_array(), casted_stub()->elements_kind(),
       STORE, NEVER_RETURN_HOLE, casted_stub()->store_mode());
 
   return GetParameter(2);
 }
 
 
 Handle<Code> KeyedStoreFastElementStub::GenerateCode() {
   return DoGenerateCode(this);
 }
@@ skipping 404 matching lines @@
 
 
 template <>
 HValue* CodeStubGraphBuilder<StoreGlobalStub>::BuildCodeInitializedStub() {
   StoreGlobalStub* stub = casted_stub();
   Handle<Object> hole(isolate()->heap()->the_hole_value(), isolate());
   Handle<Object> placeholer_value(Smi::FromInt(0), isolate());
   Handle<PropertyCell> placeholder_cell =
       isolate()->factory()->NewPropertyCell(placeholer_value);
 
-  HParameter* value = GetParameter(2);
+  HParameter* value = GetParameter(StoreIC::kValueIndex);
 
   if (stub->check_global()) {
     // Check that the map of the global has not changed: use a placeholder map
     // that will be replaced later with the global object's map.
     Handle<Map> placeholder_map = isolate()->factory()->meta_map();
     HValue* global = Add<HConstant>(
         StoreGlobalStub::global_placeholder(isolate()));
     Add<HCheckMaps>(global, placeholder_map);
   }
 
@@ skipping 681 matching lines @@
   return Pop();
 }
 
 
 Handle<Code> KeyedLoadGenericElementStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
 
 } }  // namespace v8::internal