- Trigger old-gen GCs when needed.

vm/heap_test.cc

Index: vm/heap_test.cc
===================================================================
--- vm/heap_test.cc	(revision 2587)
+++ vm/heap_test.cc	(working copy)
@@ -17,6 +17,7 @@
   "    return [1, 2, 3];\n"
   "  }\n"
   "}\n";
+  FLAG_verbose_gc = true;
   Dart_Handle lib = TestCase::LoadTestScript(kScriptChars, NULL);
   Dart_Handle result = Dart_InvokeStatic(lib,
                                          Dart_NewString("HeapTester"),
@@ -30,5 +31,32 @@
   Heap* heap = isolate->heap();
   heap->CollectGarbage(Heap::kOld);
 }
+
+
+TEST_CASE(LargeSweep) {
+  const char* kScriptChars =
+  "class HeapTester {\n"
+  "  static void main() {\n"
+  "    return new List(8 * 1024 * 1024);\n"
+  "  }\n"
+  "}\n";
+  FLAG_verbose_gc = true;
+  Dart_Handle lib = TestCase::LoadTestScript(kScriptChars, NULL);
+  Dart_EnterScope();
+  Dart_Handle result = Dart_InvokeStatic(lib,
+                                         Dart_NewString("HeapTester"),
+                                         Dart_NewString("main"),
+                                         0, NULL);
+
+  EXPECT_VALID(result);
+  EXPECT(!Dart_IsNull(result));
+  EXPECT(Dart_IsList(result));
+  Isolate* isolate = Isolate::Current();
+  Heap* heap = isolate->heap();
+  heap->CollectGarbage(Heap::kOld);
+  Dart_ExitScope();
+  heap->CollectGarbage(Heap::kOld);
+}
+
 #endif  // TARGET_ARCH_IA32
 }