Add Uint32 representation

runtime/vm/flow_graph_allocator.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_allocator.h"
 
 #include "vm/bit_vector.h"
 #include "vm/intermediate_language.h"
 #include "vm/il_printer.h"
 #include "vm/flow_graph.h"
@@ skipping 2727 matching lines @@
                 range->assigned_location());
     }
   }
 }
 
 
 static Representation RepresentationForRange(Representation definition_rep) {
   if (definition_rep == kUnboxedMint) {
     // kUnboxedMint is split into two ranges, each of which are kUntagged.
     return kUntagged;
+  } else if (definition_rep == kUnboxedUint32) {
+    // kUnboxedUint32 is untagged.
+    return kUntagged;
   }
   return definition_rep;
 }
 
 
 void FlowGraphAllocator::CollectRepresentations() {
   // Parameters.
   GraphEntryInstr* graph_entry = flow_graph_.graph_entry();
   for (intptr_t i = 0; i < graph_entry->initial_definitions()->length(); ++i) {
     Definition* def = (*graph_entry->initial_definitions())[i];
@@ skipping 118 matching lines @@
     OS::Print("-- [after ssa allocator] ir [%s] -------------\n",
               function.ToFullyQualifiedCString());
     FlowGraphPrinter printer(flow_graph_, true);
     printer.PrintBlocks();
     OS::Print("----------------------------------------------\n");
   }
 }
 
 
 }  // namespace dart