Add add and subtract operations to Uint32x4

runtime/vm/flow_graph_optimizer.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/flow_graph_optimizer.h"
 
 #include "vm/bit_vector.h"
 #include "vm/cha.h"
 #include "vm/dart_entry.h"
 #include "vm/flow_graph_builder.h"
@@ skipping 1065 matching lines @@
       } else if (HasTwoMintOrSmi(ic_data) &&
                  FlowGraphCompiler::SupportsUnboxedMints()) {
         // Don't generate mint code if the IC data is marked because of an
         // overflow.
         if (ic_data.deopt_reason() == kDeoptBinaryMintOp) return false;
         operands_type = kMintCid;
       } else if (ShouldSpecializeForDouble(ic_data)) {
         operands_type = kDoubleCid;
       } else if (HasOnlyTwoOf(ic_data, kFloat32x4Cid)) {
         operands_type = kFloat32x4Cid;
+      } else if (HasOnlyTwoOf(ic_data, kUint32x4Cid)) {
+        operands_type = kUint32x4Cid;
       } else {
         return false;
       }
       break;
     case Token::kMUL:
       if (HasOnlyTwoOf(ic_data, kSmiCid)) {
         // Don't generate smi code if the IC data is marked because of an
         // overflow.
         // TODO(fschneider): Add unboxed mint multiplication.
         if (ic_data.deopt_reason() == kDeoptBinarySmiOp) return false;
@@ skipping 6439 matching lines @@
   }
 
   // Insert materializations at environment uses.
   for (intptr_t i = 0; i < exits.length(); i++) {
     CreateMaterializationAt(exits[i], alloc, alloc->cls(), *fields);
   }
 }
 
 
 }  // namespace dart