Add support for XMM registers in SSA code generation pipeline.

runtime/vm/flow_graph_optimizer.h

 // 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.
 
 #ifndef VM_FLOW_GRAPH_OPTIMIZER_H_
 #define VM_FLOW_GRAPH_OPTIMIZER_H_
 
 #include "vm/intermediate_language.h"
 #include "vm/flow_graph.h"
 
 namespace dart {
 
 template <typename T> class GrowableArray;
 
 class FlowGraphOptimizer : public FlowGraphVisitor {
  public:
-  explicit FlowGraphOptimizer(const FlowGraph& flow_graph)
-      : FlowGraphVisitor(flow_graph.reverse_postorder()) {}
+  explicit FlowGraphOptimizer(FlowGraph* flow_graph)
+      : FlowGraphVisitor(flow_graph->reverse_postorder()),
+        flow_graph_(flow_graph) { }
   virtual ~FlowGraphOptimizer() {}
 
   void ApplyICData();
 
   void OptimizeComputations();
 
   virtual void VisitStaticCall(StaticCallComp* comp, BindInstr* instr);
   virtual void VisitInstanceCall(InstanceCallComp* comp, BindInstr* instr);
   virtual void VisitRelationalOp(RelationalOpComp* comp, BindInstr* instr);
   virtual void VisitEqualityCompare(EqualityCompareComp* comp,
@@ skipping 11 matching lines @@
   bool TryReplaceWithUnaryOp(BindInstr* instr,
                              InstanceCallComp* comp,
                              Token::Kind op_kind);
 
   bool TryInlineInstanceGetter(BindInstr* instr,
                                InstanceCallComp* comp);
   bool TryInlineInstanceSetter(BindInstr* instr, InstanceCallComp* comp);
 
   bool TryInlineInstanceMethod(BindInstr* instr, InstanceCallComp* comp);
 
+  Value* InsertBefore(Instruction* instr, Computation* comp, Environment* env);
+
+  BindInstr* InsertAfter(Instruction* instr, Computation* comp);
+
+  FlowGraph* flow_graph_;
+
   DISALLOW_COPY_AND_ASSIGN(FlowGraphOptimizer);
 };
 
 
 // Analyze the generated flow graph. Currently only if it is a leaf
 // method, i.e., does not contain any calls to runtime or other Dart code.
 class FlowGraphAnalyzer : public ValueObject {
  public:
   explicit FlowGraphAnalyzer(const FlowGraph& flow_graph)
       : blocks_(flow_graph.reverse_postorder()), is_leaf_(false) {}
@@ skipping 55 matching lines @@
  private:
   const GrowableArray<BlockEntryInstr*>& blocks_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalCSE);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_OPTIMIZER_H_