Separate double binary operation into a separate instruction class.

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/flow_graph_builder.h"
 #include "vm/il_printer.h"
 #include "vm/object_store.h"
 
@@ skipping 156 matching lines @@
         operands_type = BinaryOpComp::kSmiOperands;
       } else {
         return false;
       }
       break;
     default:
       UNREACHABLE();
   };
 
   ASSERT(comp->ArgumentCount() == 2);
-  Value* left = comp->ArgumentAt(0)->value();
-  Value* right = comp->ArgumentAt(1)->value();
-  BinaryOpComp* bin_op =
-      new BinaryOpComp(op_kind,
-                       operands_type,
-                       comp,
-                       left,
-                       right);
-  bin_op->set_ic_data(comp->ic_data());
-  instr->set_computation(bin_op);
-  RemovePushArguments(comp);
+  if (operands_type == BinaryOpComp::kDoubleOperands) {
+    DoubleBinaryOpComp* double_bin_op = new DoubleBinaryOpComp(op_kind, comp);
+    double_bin_op->set_ic_data(comp->ic_data());
+    instr->set_computation(double_bin_op);
+  } else {
+    Value* left = comp->ArgumentAt(0)->value();
+    Value* right = comp->ArgumentAt(1)->value();
+    BinaryOpComp* bin_op =
+        new BinaryOpComp(op_kind,
+                         operands_type,
+                         comp,
+                         left,
+                         right);
+    bin_op->set_ic_data(comp->ic_data());
+    instr->set_computation(bin_op);
+    RemovePushArguments(comp);
+  }
   return true;
 }
 
 
 bool FlowGraphOptimizer::TryReplaceWithUnaryOp(BindInstr* instr,
                                                InstanceCallComp* comp,
                                                Token::Kind op_kind) {
   if (comp->ic_data()->NumberOfChecks() != 1) {
     // TODO(srdjan): Not yet supported.
     return false;
@@ skipping 384 matching lines @@
     }
   }
 }
 
 
 void FlowGraphTypePropagator::PropagateTypes() {
   VisitBlocks();
 }
 
 }  // namespace dart