Optimize loads and stores to Int32Array and Uint32Array.

runtime/vm/flow_graph_compiler_x64.cc

 // Copyright (c) 2013, 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/globals.h"  // Needed here to get TARGET_ARCH_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "lib/error.h"
@@ skipping 1509 matching lines @@
       return FieldAddress(array, index, TIMES_1, Int8Array::data_offset());
     case kUint8ArrayCid:
       return FieldAddress(array, index, TIMES_1, Uint8Array::data_offset());
     case kUint8ClampedArrayCid:
       return
           FieldAddress(array, index, TIMES_1, Uint8ClampedArray::data_offset());
     case kInt16ArrayCid:
       return FieldAddress(array, index, TIMES_1, Int16Array::data_offset());
     case kUint16ArrayCid:
       return FieldAddress(array, index, TIMES_1, Uint16Array::data_offset());
+    case kInt32ArrayCid:
+      return FieldAddress(array, index, TIMES_2, Int32Array::data_offset());
+    case kUint32ArrayCid:
+      return FieldAddress(array, index, TIMES_2, Uint32Array::data_offset());
     case kOneByteStringCid:
       return FieldAddress(array, index, TIMES_1, OneByteString::data_offset());
     case kTwoByteStringCid:
       return FieldAddress(array, index, TIMES_1, TwoByteString::data_offset());
     default:
       UNIMPLEMENTED();
       return FieldAddress(SPREG, 0);
   }
 }
 
@@ skipping 147 matching lines @@
 void ParallelMoveResolver::Exchange(const Address& mem1, const Address& mem2) {
   __ Exchange(mem1, mem2);
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64