RFR(S): 8231988: Unexpected test result caused by C2 IdealLoopTree::do_remove_empty_loop

[Yangfei (Felix)]

Hmm...  
Looks like the reduced test case on the bugzilla is not suitable for us.  
It needs to be compiled by a 8u javac in order to triggers this problem.  
The bug will not trigger if we compile the test case by 11u javac or higher versions.  
I don't have other test cases to trigger this bug for now.  

Thanks,
Felix

> 
> Hi Nils,
> 
>   Thanks for performing the test.
>   Sure, let me add one based on the reduced test case on the bugzilla.
> 
> Felix
> 
> >
> > Hi Felix,
> >
> > Do you have a test case that triggers this problem? Could you add that
> > as a jtreg test?
> >
> > I have run your patch through testing tier1-3 and the results look good.
> >