*** old/src/share/vm/runtime/compilationPolicy.cpp	Fri Jan 15 11:50:53 2010
--- new/src/share/vm/runtime/compilationPolicy.cpp	Fri Jan 15 11:50:53 2010

*** 1,7 ****
--- 1,7 ----
  /*
!  * Copyright 2000-2007 Sun Microsystems, Inc.  All Rights Reserved.
!  * Copyright 2000-2010 Sun Microsystems, Inc.  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.

*** 72,81 ****
--- 72,91 ----
  // Returns true if m is allowed to be compiled
  bool CompilationPolicy::canBeCompiled(methodHandle m) {
    if (m->is_abstract()) return false;
    if (DontCompileHugeMethods && m->code_size() > HugeMethodLimit) return false;
  
+   // Math intrinsics should never be compiled as this can lead to
+   // monotonicity problems because the interpreter will prefer the
+   // compiled code to the intrinsic version.  This can't happen in
+   // production because the invocation counter can't be incremented
+   // but we shouldn't expose the system to this problem in testing
+   // modes.
+   if (!AbstractInterpreter::can_be_compiled(m)) {
+     return false;
+   }
+ 
    return !m->is_not_compilable();
  }
  
  #ifndef PRODUCT
  void CompilationPolicy::print_time() {