commit 72204d59e7fb1b8a0e9012e1fac5ef160351e8e4
author danno@chromium.org <danno@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Wed Oct 31 10:02:10 2012 +0000
committer danno@chromium.org <danno@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Wed Oct 31 10:02:10 2012 +0000
tree 8ef4cb1cc2c198136e0791bb815dcca1c8ffeda9
parent 89e18f5599cb4cd462cb1ed324addd7388fb4d60

Version 3.15.0

Loosened aligned code target requirement on ARM (issue 2380)

Fixed JSON.parse to treat leading zeros correctly. (Chromium issue 158185)

Performance and stability improvements on all platforms.

git-svn-id: http://v8.googlecode.com/svn/trunk@12836 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/heap.cc

diff --git a/src/heap.cc b/src/heap.cc
index e3fcb93..11bf9cd 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -212,6 +212,20 @@
       lo_space_->Size();
 }
 
+
+size_t Heap::CommittedPhysicalMemory() {
+  if (!HasBeenSetUp()) return 0;
+
+  return new_space_.CommittedPhysicalMemory() +
+      old_pointer_space_->CommittedPhysicalMemory() +
+      old_data_space_->CommittedPhysicalMemory() +
+      code_space_->CommittedPhysicalMemory() +
+      map_space_->CommittedPhysicalMemory() +
+      cell_space_->CommittedPhysicalMemory() +
+      lo_space_->CommittedPhysicalMemory();
+}
+
+
 intptr_t Heap::CommittedMemoryExecutable() {
   if (!HasBeenSetUp()) return 0;
 
@@ -406,6 +420,14 @@
   gc_count_++;
   unflattened_strings_length_ = 0;
 
+  bool should_enable_code_flushing = FLAG_flush_code;
+#ifdef ENABLE_DEBUGGER_SUPPORT
+  if (isolate_->debug()->IsLoaded() || isolate_->debug()->has_break_points()) {
+    should_enable_code_flushing = false;
+  }
+#endif
+  mark_compact_collector()->EnableCodeFlushing(should_enable_code_flushing);
+
 #ifdef VERIFY_HEAP
   if (FLAG_verify_heap) {
     Verify();
@@ -1305,6 +1327,12 @@
     }
   }
 
+  // Copy objects reachable from the code flushing candidates list.
+  MarkCompactCollector* collector = mark_compact_collector();
+  if (collector->is_code_flushing_enabled()) {
+    collector->code_flusher()->IteratePointersToFromSpace(&scavenge_visitor);
+  }
+
   // Scavenge object reachable from the native contexts list directly.
   scavenge_visitor.VisitPointer(BitCast<Object**>(&native_contexts_list_));
 
@@ -5520,6 +5548,7 @@
   return symbol_table()->LookupSymbolIfExists(string, symbol);
 }
 
+
 void Heap::ZapFromSpace() {
   NewSpacePageIterator it(new_space_.FromSpaceStart(),
                           new_space_.FromSpaceEnd());
@@ -7184,7 +7213,7 @@
 void ExternalStringTable::CleanUp() {
   int last = 0;
   for (int i = 0; i < new_space_strings_.length(); ++i) {
-    if (new_space_strings_[i] == heap_->raw_unchecked_the_hole_value()) {
+    if (new_space_strings_[i] == heap_->the_hole_value()) {
       continue;
     }
     if (heap_->InNewSpace(new_space_strings_[i])) {
@@ -7196,7 +7225,7 @@
   new_space_strings_.Rewind(last);
   last = 0;
   for (int i = 0; i < old_space_strings_.length(); ++i) {
-    if (old_space_strings_[i] == heap_->raw_unchecked_the_hole_value()) {
+    if (old_space_strings_[i] == heap_->the_hole_value()) {
       continue;
     }
     ASSERT(!heap_->InNewSpace(old_space_strings_[i]));