CpuProfiler: do not calculate positions if it is not necessary (BuildCompareInstruction part).

src/hydrogen.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HYDROGEN_H_
 #define V8_HYDROGEN_H_
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
@@ skipping 2623 matching lines @@
                                Expression* sub_expr,
                                NilValue nil);
 
   enum PushBeforeSimulateBehavior {
     PUSH_BEFORE_SIMULATE,
     NO_PUSH_BEFORE_SIMULATE
   };
 
   HControlInstruction* BuildCompareInstruction(
       Token::Value op, HValue* left, HValue* right, Type* left_type,
-      Type* right_type, Type* combined_type, SourcePosition left_position,
-      SourcePosition right_position, PushBeforeSimulateBehavior push_sim_result,
-      BailoutId bailout_id);
+      Type* right_type, Type* combined_type,
+      PushBeforeSimulateBehavior push_sim_result, BailoutId bailout_id);
 
   HInstruction* BuildStringCharCodeAt(HValue* string,
                                       HValue* index);
 
   HValue* BuildBinaryOperation(
       BinaryOperation* expr,
       HValue* left,
       HValue* right,
       PushBeforeSimulateBehavior push_sim_result);
   HInstruction* BuildIncrement(bool returns_original_input,
@@ skipping 307 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_