hotspot/src/share/vm/interpreter/bytecodes.hpp

rev 6907 : 8056071: compiler/whitebox/IsMethodCompilableTest.java fails with 'method() is not compilable after 3 iterations'
Summary: Always use MDO if valid and always compile trivial methods with C1 if available.
Reviewed-by: kvn, iveresov

@@ -418,12 +418,14 @@
   static bool        is_aload       (Code code)    { return (code == _aload  || code == _aload_0  || code == _aload_1
                                                                              || code == _aload_2  || code == _aload_3); }
   static bool        is_astore      (Code code)    { return (code == _astore || code == _astore_0 || code == _astore_1
                                                                              || code == _astore_2 || code == _astore_3); }
 
+  static bool        is_const       (Code code)    { return (_aconst_null <= code && code <= _ldc2_w); }
   static bool        is_zero_const  (Code code)    { return (code == _aconst_null || code == _iconst_0
                                                            || code == _fconst_0 || code == _dconst_0); }
+  static bool        is_return      (Code code)    { return (_ireturn <= code && code <= _return); }
   static bool        is_invoke      (Code code)    { return (_invokevirtual <= code && code <= _invokedynamic); }
   static bool        has_receiver   (Code code)    { assert(is_invoke(code), "");  return code == _invokevirtual ||
                                                                                           code == _invokespecial ||
                                                                                           code == _invokeinterface; }
   static bool        has_optional_appendix(Code code) { return code == _invokedynamic || code == _invokehandle; }