Tenure allocation sites only when semi-space is maximum size.

src/objects.cc

 // Copyright 2013 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"
 
 #include "accessors.h"
 #include "allocation-site-scopes.h"
 #include "api.h"
 #include "arguments.h"
@@ skipping 13418 matching lines @@
                                                  CompilationInfo* info) {
   DependentCode::DependencyGroup group = site->ToDependencyGroup(reason);
   Handle<DependentCode> dep(site->dependent_code());
   Handle<DependentCode> codes =
       DependentCode::Insert(dep, group, info->object_wrapper());
   if (*codes != site->dependent_code()) site->set_dependent_code(*codes);
   info->dependencies(group)->Add(Handle<HeapObject>(*site), info->zone());
 }
 
 
+const char* AllocationSite::PretenureDecisionName(PretenureDecision decision) {
+  switch (decision) {
+    case kUndecided: return "undecided";
+    case kDontTenure: return "don't tenure";
+    case kMaybeTenure: return "maybe tenure";
+    case kTenure: return "tenure";
+    case kZombie: return "zombie";
+    default: UNREACHABLE();
+  }
+  return NULL;
+}
+
+
 void JSObject::UpdateAllocationSite(Handle<JSObject> object,
                                     ElementsKind to_kind) {
   if (!object->IsJSArray()) return;
 
   Heap* heap = object->GetHeap();
   if (!heap->InNewSpace(*object)) return;
 
   Handle<AllocationSite> site;
   {
     DisallowHeapAllocation no_allocation;
@@ skipping 3847 matching lines @@
 #define ERROR_MESSAGES_TEXTS(C, T) T,
   static const char* error_messages_[] = {
       ERROR_MESSAGES_LIST(ERROR_MESSAGES_TEXTS)
   };
 #undef ERROR_MESSAGES_TEXTS
   return error_messages_[reason];
 }
 
 
 } }  // namespace v8::internal