Implement inlined LoadIndexed operation for arrays on x64.

runtime/vm/flow_graph_builder.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/flow_graph_builder.h"
 
 #include "vm/ast_printer.h"
 #include "vm/bit_vector.h"
 #include "vm/code_descriptors.h"
 #include "vm/dart_entry.h"
@@ skipping 1933 matching lines @@
 }
 
 
 void EffectGraphVisitor::VisitLoadIndexedNode(LoadIndexedNode* node) {
   ValueGraphVisitor for_array(owner(), temp_index());
   node->array()->Visit(&for_array);
   Append(for_array);
   ValueGraphVisitor for_index(owner(), for_array.temp_index());
   node->index_expr()->Visit(&for_index);
   Append(for_index);
-  ZoneGrowableArray<Value*>* arguments = new ZoneGrowableArray<Value*>(2);
-  arguments->Add(for_array.value());
-  arguments->Add(for_index.value());
-  const String& name =
-      String::ZoneHandle(String::NewSymbol(Token::Str(Token::kINDEX)));
-  InstanceCallComp* call = new InstanceCallComp(
-      node->token_index(), owner()->try_index(), name,
-      arguments, Array::ZoneHandle(), 1);
-  ReturnComputation(call);
+
+  LoadIndexedComp* load = new LoadIndexedComp(
+      node->token_index(),
+      owner()->try_index(),
+      for_array.value(),
+      for_index.value());
+  ReturnComputation(load);
 }
 
 
 void EffectGraphVisitor::BuildStoreIndexedValues(
     StoreIndexedNode* node, Value** array, Value** index, Value** value) {
   ValueGraphVisitor for_array(owner(), temp_index());
   node->array()->Visit(&for_array);
   Append(for_array);
   ValueGraphVisitor for_index(owner(), for_array.temp_index());
   node->index_expr()->Visit(&for_index);
@@ skipping 514 matching lines @@
   char* chars = reinterpret_cast<char*>(
       Isolate::Current()->current_zone()->Allocate(len));
   OS::SNPrint(chars, len, kFormat, function_name, reason);
   const Error& error = Error::Handle(
       LanguageError::New(String::Handle(String::New(chars))));
   Isolate::Current()->long_jump_base()->Jump(1, error);
 }
 
 
 }  // namespace dart