8257847: Tiered should publish MDO data pointer for interpreter after…

… profile start

Reviewed-by: thartmann, kvn, dlong

src/hotspot/share/compiler/tieredThresholdPolicy.cpp

@@ -790,7 +790,7 @@ bool TieredThresholdPolicy::is_mature(Method* method) {
 // start profiling without waiting for the compiled method to arrive.
 // We also take the load on compilers into the account.
 bool TieredThresholdPolicy::should_create_mdo(const methodHandle& method, CompLevel cur_level) {
-  if (cur_level != CompLevel_none || force_comp_at_level_simple(method)) {
+  if (cur_level != CompLevel_none || force_comp_at_level_simple(method) || !ProfileInterpreter) {
     return false;
   }
   int i = method->invocation_count();
@@ -826,6 +826,18 @@ void TieredThresholdPolicy::create_mdo(const methodHandle& mh, Thread* THREAD) {
   if (mh->method_data() == NULL) {
     Method::build_interpreter_method_data(mh, CHECK_AND_CLEAR);
   }
+  if (ProfileInterpreter) {
+    MethodData* mdo = mh->method_data();
+    if (mdo != NULL) {
+      JavaThread* jt = THREAD->as_Java_thread();
+      frame last_frame = jt->last_frame();
+      if (last_frame.is_interpreted_frame() && mh == last_frame.interpreter_frame_method()) {
+        int bci = last_frame.interpreter_frame_bci();
+        address dp = mdo->bci_to_dp(bci);
+        last_frame.interpreter_frame_set_mdp(dp);
+      }
+    }
+  }
 }