Start using store buffers. Handle store buffer overflow situation....

test/cctest/test-heap.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 
 #include <stdlib.h>
 
 #include "v8.h"
 
 #include "execution.h"
 #include "factory.h"
 #include "macro-assembler.h"
 #include "global-handles.h"
@@ skipping 893 matching lines @@
   // in old pointer space.
   Address old_pointer_space_top = Heap::old_pointer_space()->top();
   AlwaysAllocateScope aa_scope;
   Object* clone_obj = Heap::CopyJSObject(jsobject)->ToObjectChecked();
   JSObject* clone = JSObject::cast(clone_obj);
   if (clone->address() != old_pointer_space_top) {
     // Alas, got allocated from free list, we cannot do checks.
     return;
   }
   CHECK(Heap::old_pointer_space()->Contains(clone->address()));
-
-  // Step 5: verify validity of region dirty marks.
-  Address clone_addr = clone->address();
-  Page* page = Page::FromAddress(clone_addr);
-  // Check that region covering inobject property 1 is marked dirty.
-  CHECK(page->IsRegionDirty(clone_addr + (object_size - kPointerSize)));
 }
 
 
 TEST(TestCodeFlushing) {
   i::FLAG_allow_natives_syntax = true;
   // If we do not flush code this test is invalid.
   if (!FLAG_flush_code) return;
   InitializeVM();
   v8::HandleScope scope;
   const char* source = "function foo() {"
@@ skipping 322 matching lines @@
     CHECK(helper.b_found());
   }
   // ...but is now unreachable.
   {
     HeapIteratorTestHelper helper(a_saved, *b);
     helper.IterateHeap(HeapIterator::kFilterUnreachable);
     CHECK(!helper.a_found());
     CHECK(helper.b_found());
   }
 }