Use static type information on x64 in LikelySmiBinaryOperation

src/x64/codegen-x64.h

 // Copyright 2010 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 459 matching lines @@
   // Translate the value on top of the frame into control flow to the
   // control destination.
   void ToBoolean(ControlDestination* destination);
 
   // Generate code that computes a shortcutting logical operation.
   void GenerateLogicalBooleanOperation(BinaryOperation* node);
 
   void GenericBinaryOperation(BinaryOperation* expr,
                               OverwriteMode overwrite_mode);
 
+  // Emits code sequence that jumps to deferred code if the inputs
+  // are not both smis.  Cannot be in MacroAssembler because it takes
+  // advantage of TypeInfo to skip unneeded checks.
+  void JumpIfNotBothSmiUsingTypeInfo(Register left,
+                                     Register right,
+                                     TypeInfo left_info,
+                                     TypeInfo right_info,
+                                     DeferredCode* deferred);
+
   // If possible, combine two constant smi values using op to produce
   // a smi result, and push it on the virtual frame, all at compile time.
   // Returns true if it succeeds.  Otherwise it has no effect.
   bool FoldConstantSmis(Token::Value op, int left, int right);
 
   // Emit code to perform a binary operation on a constant
   // smi and a likely smi.  Consumes the Result *operand.
   Result ConstantSmiBinaryOperation(BinaryOperation* expr,
                                     Result* operand,
                                     Handle<Object> constant_operand,
@@ skipping 541 matching lines @@
     return ObjectBits::encode(object_.code()) |
            AddressBits::encode(addr_.code()) |
            ScratchBits::encode(scratch_.code());
   }
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_CODEGEN_X64_H_