Add Uint32 representation

runtime/vm/locations.h

 // 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.
 
 #ifndef VM_LOCATIONS_H_
 #define VM_LOCATIONS_H_
 
 #include "vm/allocation.h"
 #include "vm/assembler.h"
 #include "vm/bitfield.h"
 
 namespace dart {
 
 class BufferFormatter;
 class Value;
 class PairLocation;
 
 
 enum Representation {
   kNoRepresentation,
   kTagged,
   kUntagged,
   kUnboxedDouble,
   kUnboxedMint,
+  kUnboxedMint32,

[Florian Schneider, 2014/06/25 11:36:00]

I would rename this to kUnboxedUint32 to more accurately reflect what it is
representing.

   kUnboxedFloat32x4,
   kUnboxedInt32x4,
   kUnboxedFloat64x2,
   kPairOfTagged,
   kPairOfUnboxedDouble,
   kNumRepresentations
 };
 
 
 // Location objects are used to connect register allocator and code generator.
@@ skipping 589 matching lines @@
   BitmapBuilder* stack_bitmap_;
 
   const ContainsCall contains_call_;
   RegisterSet live_registers_;
 };
 
 
 }  // namespace dart
 
 #endif  // VM_LOCATIONS_H_