- Annotate instructions that load objects from the ObjectPool or Thread.

runtime/vm/thread.cc

 // Copyright (c) 2015, 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/thread.h"
 
 #include "vm/growable_array.h"
 #include "vm/isolate.h"
 #include "vm/lockers.h"
 #include "vm/log.h"
@@ skipping 535 matching lines @@
 #define COMPUTE_OFFSET(type_name, member_name, expr, default_init_value)       \
   ASSERT((expr)->IsVMHeapObject());                                            \
   if (object.raw() == expr) return Thread::member_name##offset();
 CACHED_VM_OBJECTS_LIST(COMPUTE_OFFSET)
 #undef COMPUTE_OFFSET
   UNREACHABLE();
   return -1;
 }
 
 
+bool Thread::ObjectAtOffset(intptr_t offset, Object* object) {
+#define COMPUTE_OFFSET(type_name, member_name, expr, default_init_value)       \
+  if (Thread::member_name##offset() == offset) {                               \
+    *object = expr;                                                            \
+    return true;                                                               \
+  }
+CACHED_VM_OBJECTS_LIST(COMPUTE_OFFSET)
+#undef COMPUTE_OFFSET
+  return false;
+}
+
+
 intptr_t Thread::OffsetFromThread(const RuntimeEntry* runtime_entry) {
 #define COMPUTE_OFFSET(name)                                                   \
   if (runtime_entry->function() == k##name##RuntimeEntry.function())         { \
     return Thread::name##_entry_point_offset();                                \
   }
 RUNTIME_ENTRY_LIST(COMPUTE_OFFSET)
 #undef COMPUTE_OFFSET
 
 #define COMPUTE_OFFSET(returntype, name, ...)                                  \
   if (runtime_entry->function() == k##name##RuntimeEntry.function())         { \
@@ skipping 46 matching lines @@
 }
 
 
 DisableThreadInterruptsScope::~DisableThreadInterruptsScope() {
   if (thread() != NULL) {
     thread()->EnableThreadInterrupts();
   }
 }
 
 }  // namespace dart