src/share/vm/runtime/advancedThresholdPolicy.cpp

rev 8983 : 8222670: pathological case of JIT recompilation and code cache bloat
Summary: Prevent downgraded compilation tasks from recompiling.
Reviewed-by: thartmann, sgehwolf, phh, andrew

*** 1,7 ****
  /*
!  * Copyright (c) 2010, 2013, 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
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * 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
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 194,203 ****
--- 194,213 ----
      task = next_task;
    }
  
    if (max_task->comp_level() == CompLevel_full_profile && TieredStopAtLevel > CompLevel_full_profile
        && is_method_profiled(max_method)) {
+ 
+     if (CompileBroker::compilation_is_complete(max_method, max_task->osr_bci(), CompLevel_limited_profile)) {
+       if (PrintTieredEvents) {
+         print_event(REMOVE_FROM_QUEUE, max_method, max_method, max_task->osr_bci(), (CompLevel)max_task->comp_level());
+       }
+       compile_queue->remove_and_mark_stale(max_task);
+       max_method->clear_queued_for_compilation();
+       return NULL;
+     }
+ 
      max_task->set_comp_level(CompLevel_limited_profile);
      if (PrintTieredEvents) {
        print_event(UPDATE_IN_QUEUE, max_method, max_method, max_task->osr_bci(), (CompLevel)max_task->comp_level());
      }
    }