Port count-based profiler to x64

src/debug.cc

 // Copyright 2011 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 1829 matching lines @@
           new_code->instruction_start() -
           debug_break_slot_bytes;
       if (new_delta > delta) {
         break;
       }
 
       // Passed a debug break slot in the full code with debug
       // break slots.
       debug_break_slot_count++;
     }
-    if (frame_code->has_self_optimization_header() &&
-        !new_code->has_self_optimization_header()) {
-      delta -= FullCodeGenerator::self_optimization_header_size();
-    } else {
-      ASSERT(frame_code->has_self_optimization_header() ==
-             new_code->has_self_optimization_header());
-    }
     int debug_break_slot_bytes =
         debug_break_slot_count * Assembler::kDebugBreakSlotLength;
     if (FLAG_trace_deopt) {
       PrintF("Replacing code %08" V8PRIxPTR " - %08" V8PRIxPTR " (%d) "
              "with %08" V8PRIxPTR " - %08" V8PRIxPTR " (%d) "
              "for debugging, "
              "changing pc from %08" V8PRIxPTR " to %08" V8PRIxPTR "\n",
              reinterpret_cast<intptr_t>(
                  frame_code->instruction_start()),
              reinterpret_cast<intptr_t>(
@@ skipping 1712 matching lines @@
     {
       Locker locker;
       Isolate::Current()->debugger()->CallMessageDispatchHandler();
     }
   }
 }
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 } }  // namespace v8::internal