src/share/vm/compiler/compileBroker.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) 1999, 2014, 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) 1999, 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.
*** 749,760 ****
--- 749,762 ----
    CompileTask* task;
    {
      No_Safepoint_Verifier nsv;
      task = CompilationPolicy::policy()->select_task(this);
    }
+   if (task != NULL) {
      remove(task);
      purge_stale_tasks(); // may temporarily release MCQ lock
+   }
    return task;
  }
  
  // Clean & deallocate stale compile tasks.
  // Temporarily releases MethodCompileQueue lock.