diff -r 0042eb88035b -r 184c51e48260 src/hotspot/share/runtime/tieredThresholdPolicy.cpp
--- a/src/hotspot/share/runtime/tieredThresholdPolicy.cpp	Tue Jan 08 11:02:26 2019 +0100
+++ b/src/hotspot/share/runtime/tieredThresholdPolicy.cpp	Tue Jan 08 11:23:19 2019 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2010, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -872,7 +872,7 @@
 }
 
 bool TieredThresholdPolicy::maybe_switch_to_aot(const methodHandle& mh, CompLevel cur_level, CompLevel next_level, JavaThread* thread) {
-  if (UseAOT && !delay_compilation_during_startup()) {
+  if (UseAOT) {
     if (cur_level == CompLevel_full_profile || cur_level == CompLevel_none) {
       // If the current level is full profile or interpreter and we're switching to any other level,
       // activate the AOT code back first so that we won't waste time overprofiling.