Added tracing support for pretenuring.

src/hydrogen.cc

 // Copyright 2013 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 9341 matching lines @@
 
   // We should pull pre-tenure mode from the allocation site.
   // For now, just see what it says, and remark on it if it sez
   // we should pretenure. That means the rudimentary counting in the garbage
   // collector is having an effect.
   PretenureFlag pretenure_flag = isolate()->heap()->GetPretenureMode();
   if (FLAG_allocation_site_pretenuring) {
     pretenure_flag = site_context->current()->GetPretenureMode()
         ? TENURED
         : NOT_TENURED;
-    if (FLAG_trace_track_allocation_sites) {
-      PrintF("Hydrogen: AllocationSite %p boilerplate %p %s\n",
-             static_cast<void*>(*(site_context->current())),
-             static_cast<void*>(*boilerplate_object),
-             pretenure_flag == TENURED ? "tenured" : "not tenured");
-    }
   }
 
   HInstruction* object = Add<HAllocate>(object_size_constant, type,
-      pretenure_flag, instance_type);
+      pretenure_flag, instance_type, site_context->current());
 
   BuildEmitObjectHeader(boilerplate_object, object);
 
   Handle<FixedArrayBase> elements(boilerplate_object->elements());
   int elements_size = (elements->length() > 0 &&
       elements->map() != isolate()->heap()->fixed_cow_array_map()) ?
           elements->Size() : 0;
 
   HInstruction* object_elements = NULL;
   if (elements_size > 0) {
     HValue* object_elements_size = Add<HConstant>(elements_size);
     if (boilerplate_object->HasFastDoubleElements()) {
       object_elements = Add<HAllocate>(object_elements_size, HType::JSObject(),
-          pretenure_flag, FIXED_DOUBLE_ARRAY_TYPE);
+          pretenure_flag, FIXED_DOUBLE_ARRAY_TYPE, site_context->current());
     } else {
       object_elements = Add<HAllocate>(object_elements_size, HType::JSObject(),
-          pretenure_flag, FIXED_ARRAY_TYPE);
+          pretenure_flag, FIXED_ARRAY_TYPE, site_context->current());
     }
   }
   BuildInitElementsInObjectHeader(boilerplate_object, object, object_elements);
 
   // Copy object elements if non-COW.
   if (object_elements != NULL) {
     BuildEmitElements(boilerplate_object, elements, object_elements,
                       site_context);
   }
 
@@ skipping 1421 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal