Enable merging of comparisons into branches in checked mode.

runtime/vm/flow_graph_optimizer.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_optimizer.h"
 
 #include "vm/bit_vector.h"
 #include "vm/cha.h"
 #include "vm/flow_graph_builder.h"
 #include "vm/flow_graph_compiler.h"
@@ skipping 2349 matching lines @@
 
 
 void LICM::Hoist(ForwardInstructionIterator* it,
                  BlockEntryInstr* pre_header,
                  Instruction* current) {
   // TODO(fschneider): Avoid repeated deoptimization when
   // speculatively hoisting checks.
   if (FLAG_trace_optimization) {
     OS::Print("Hoisting instruction %s:%"Pd" from B%"Pd" to B%"Pd"\n",
               current->DebugName(),
-              current->deopt_id(),
+              current->GetDeoptId(),
               current->GetBlock()->block_id(),
               pre_header->block_id());
   }
   // Move the instruction out of the loop.
   it->RemoveCurrentFromGraph();
   GotoInstr* last = pre_header->last_instruction()->AsGoto();
   current->InsertBefore(last);
   // Attach the environment of the Goto instruction to the hoisted
   // instruction and set the correct deopt_id.
   ASSERT(last->env() != NULL);
@@ skipping 1093 matching lines @@
 
   if (FLAG_trace_constant_propagation) {
     OS::Print("\n==== After constant propagation ====\n");
     FlowGraphPrinter printer(*graph_);
     printer.PrintBlocks();
   }
 }
 
 
 }  // namespace dart