commit e297f5973a8a9ff0d9945da3f1e2d8a6230c294d
author jkummerow@chromium.org <jkummerow@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Wed Jun 08 10:05:15 2011 +0000
committer jkummerow@chromium.org <jkummerow@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Wed Jun 08 10:05:15 2011 +0000
tree a41544b246e6aa5ff140a166d46632fd9e54f71e
parent 8a177116a70bf9053bbeaf53233867958fe3ac96

Version 3.4.3

Clear the global thread table when an isolate is disposed (issue 1433).

Converted time zone name to UTF8 on Windows (issue 1290).

Limited the number of arguments in a function call to 32766 (issue 1413).

Compress sources of JS libraries in addition to the snapshot.

Fixed a bug in Lithium environment iteration.

Performance improvements on all platforms.

git-svn-id: http://v8.googlecode.com/svn/trunk@8218 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/heap.cc

diff --git a/src/heap.cc b/src/heap.cc
index e34b529..8f1ad94 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -854,6 +854,9 @@
   CompletelyClearInstanceofCache();
 
   if (is_compacting) FlushNumberStringCache();
+  if (FLAG_cleanup_code_caches_at_gc) {
+    polymorphic_code_cache()->set_cache(undefined_value());
+  }
 
   ClearNormalizedMapCaches();
 }
@@ -1037,9 +1040,10 @@
   scavenge_visitor.VisitPointer(BitCast<Object**>(&global_contexts_list_));
 
   new_space_front = DoScavenge(&scavenge_visitor, new_space_front);
-  isolate_->global_handles()->IdentifyWeakIndependentHandles(
+  isolate_->global_handles()->IdentifyNewSpaceWeakIndependentHandles(
       &IsUnscavengedHeapObject);
-  isolate_->global_handles()->IterateWeakIndependentRoots(&scavenge_visitor);
+  isolate_->global_handles()->IterateNewSpaceWeakIndependentRoots(
+      &scavenge_visitor);
   new_space_front = DoScavenge(&scavenge_visitor, new_space_front);
 
 
@@ -1638,6 +1642,11 @@
 }
 
 
+MaybeObject* Heap::AllocatePolymorphicCodeCache() {
+  return AllocateStruct(POLYMORPHIC_CODE_CACHE_TYPE);
+}
+
+
 const Heap::StringTypeTable Heap::string_type_table[] = {
 #define STRING_TYPE_ELEMENT(type, size, name, camel_name)                      \
   {type, size, k##camel_name##MapRootIndex},
@@ -2145,6 +2154,11 @@
   }
   set_non_monomorphic_cache(NumberDictionary::cast(obj));
 
+  { MaybeObject* maybe_obj = AllocatePolymorphicCodeCache();
+    if (!maybe_obj->ToObject(&obj)) return false;
+  }
+  set_polymorphic_code_cache(PolymorphicCodeCache::cast(obj));
+
   set_instanceof_cache_function(Smi::FromInt(0));
   set_instanceof_cache_map(Smi::FromInt(0));
   set_instanceof_cache_answer(Smi::FromInt(0));
@@ -4576,7 +4590,7 @@
       isolate_->global_handles()->IterateStrongRoots(v);
       break;
     case VISIT_ALL_IN_SCAVENGE:
-      isolate_->global_handles()->IterateStrongAndDependentRoots(v);
+      isolate_->global_handles()->IterateNewSpaceStrongAndDependentRoots(v);
       break;
     case VISIT_ALL_IN_SWEEP_NEWSPACE:
     case VISIT_ALL: