Fix a problem when compiling built-ins with the top-level compiler....

src/x64/fast-codegen-x64.cc

 // Copyright 2009 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 1394 matching lines @@
             __ movq(Operand(rsp, kPointerSize), rax);
             break;
           case KEYED_PROPERTY:
             __ movq(Operand(rsp, 2 * kPointerSize), rax);
             break;
         }
         break;
     }
   }
 
-  // Call runtime for +1/-1.
+  // Call stub for +1/-1.
   __ push(rax);
   __ Push(Smi::FromInt(1));
-  if (expr->op() == Token::INC) {
-    __ CallRuntime(Runtime::kNumberAdd, 2);
-  } else {
-    __ CallRuntime(Runtime::kNumberSub, 2);
-  }
+  GenericBinaryOpStub stub(expr->binary_op(),
+                           NO_OVERWRITE,
+                           NO_GENERIC_BINARY_FLAGS);
+  __ CallStub(&stub);
 
   // Store the value returned in rax.
   switch (assign_type) {
     case VARIABLE:
       __ push(rax);
       if (expr->is_postfix()) {
         EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(),
                                Expression::kEffect);
         // For all contexts except kEffect: We have the result on
         // top of the stack.
@@ skipping 288 matching lines @@
   __ movq(Operand(rsp, 0), rdx);
   // And return.
   __ ret(0);
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal