CallICStub with a "never patch" approach until customization.

src/x64/builtins-x64.cc

 // 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.
 
 #include "v8.h"
 
 #if V8_TARGET_ARCH_X64
 
 #include "codegen.h"
 #include "deoptimizer.h"
@@ skipping 557 matching lines @@
     __ addp(rcx, Immediate(1));
     __ bind(&entry);
     __ cmpp(rcx, rax);
     __ j(not_equal, &loop);
 
     // Invoke the code.
     if (is_construct) {
       // No type feedback cell is available
       __ LoadRoot(rbx, Heap::kUndefinedValueRootIndex);
       // Expects rdi to hold function pointer.
-      CallConstructStub stub(masm->isolate(), NO_CALL_FUNCTION_FLAGS);
+      CallConstructStub stub(masm->isolate(), NO_CALL_CONSTRUCTOR_FLAGS);
       __ CallStub(&stub);
     } else {
       ParameterCount actual(rax);
       // Function must be in rdi.
       __ InvokeFunction(rdi, actual, CALL_FUNCTION, NullCallWrapper());
     }
     // Exit the internal frame. Notice that this also removes the empty
     // context and the function left on the stack by the code
     // invocation.
   }
@@ skipping 917 matching lines @@
   __ bind(&ok);
   __ ret(0);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64