Binary operation deoptimization fix.

src/hydrogen.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2400 matching lines @@
                                                HValue* right,
                                                Type* left_type,
                                                Type* right_type,
                                                Type* combined_type,
                                                int left_position,
                                                int right_position,
                                                BailoutId bailout_id);
 
   HInstruction* BuildStringCharCodeAt(HValue* string,
                                       HValue* index);
+
+  enum PushBeforeSimulateBehavior {
+    PUSH_BEFORE_SIMULATE,
+    NO_PUSH_BEFORE_SIMULATE
+  };
   HValue* BuildBinaryOperation(BinaryOperation* expr,
                                HValue* left,
-                               HValue* right);
+                               HValue* right,
+                               PushBeforeSimulateBehavior pushSimResult);

[Jakob Kummerow, 2014/02/06 08:33:41]

nit: unix_hacker_style for variable names (remember to update the .cc file too)

   HInstruction* BuildIncrement(bool returns_original_input,
                                CountOperation* expr);
   HInstruction* BuildLoadKeyedGeneric(HValue* object,
                                       HValue* key);
 
   HInstruction* TryBuildConsolidatedElementLoad(HValue* object,
                                                 HValue* key,
                                                 HValue* val,
                                                 SmallMapList* maps);
 
@@ skipping 290 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_