VM: Precompiled rodata snapshot.

runtime/vm/object.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 897 matching lines @@
 // premark all objects in the vm_isolate_ heap.
 class PremarkingVisitor : public ObjectVisitor {
  public:
   explicit PremarkingVisitor(Isolate* isolate) : ObjectVisitor(isolate) {}
 
   void VisitObject(RawObject* obj) {
     // Free list elements should never be marked.
     if (!obj->IsFreeListElement()) {
       ASSERT(obj->IsVMHeapObject());
       if (obj->IsMarked()) {
-        // Precompiled instructions are loaded pre-marked.
+        // Precompiled objects are loaded pre-marked.
         ASSERT(Dart::IsRunningPrecompiledCode());
-        ASSERT(obj->IsInstructions());
+        ASSERT(obj->IsInstructions() ||
+               obj->IsPcDescriptors() ||
+               obj->IsStackmap() ||
+               obj->IsOneByteString());
       } else {
         obj->SetMarkBitUnsynchronized();
       }
     }
   }
 };
 
 
 #define SET_CLASS_NAME(class_name, name)                                       \
   cls = class_name##_class();                                                  \
@@ skipping 20561 matching lines @@
   return UserTag::null();
 }
 
 
 const char* UserTag::ToCString() const {
   const String& tag_label = String::Handle(label());
   return tag_label.ToCString();
 }
 
 }  // namespace dart