hotspot/src/share/vm/oops/method.cpp

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

*** 556,565 ****
--- 556,574 ----
    if (java_code_at(4) != Bytecodes::_areturn &&
        java_code_at(4) != Bytecodes::_ireturn ) return false;
    return true;
  }
  
+ bool Method::is_constant_getter() const {
+   int last_index = code_size() - 1;
+   // Check if the first 1-3 bytecodes are a constant push
+   // and the last bytecode is a return.
+   return (2 <= code_size() && code_size() <= 4 &&
+           Bytecodes::is_const(java_code_at(0)) &&
+           Bytecodes::length_for(java_code_at(0)) == last_index &&
+           Bytecodes::is_return(java_code_at(last_index)));
+ }
  
  bool Method::is_initializer() const {
    return name() == vmSymbols::object_initializer_name() || is_static_initializer();
  }