RFR(S): 8161652 Crash with assert(ft == _type) failed in PhiNode::Value()

[Roland Westrelin]

> Thanks for the review, Vladimir. Here is another webrev. The previous
> one had a missing webrev:

The previous one had a missing call to transform:

> http://cr.openjdk.java.net/~roland/8161652/webrev.02/
>
> Anyone to sponsor this?
>
> Roland.
>
> Vladimir Kozlov <vladimir.kozlov at oracle.com> writes:
>
>> Good.
>>
>> Thanks,
>> Vladimir
>>
>> On 7/29/16 5:55 AM, Roland Westrelin wrote:
>>>
>>>> Changes seems fine but conditions in code are difficult to
>>>> follow. Please, add comments.
>>>
>>> Thanks for looking at this, Vladimir. Here is a new webrev with extra
>>> comments:
>>>
>>> http://cr.openjdk.java.net/~roland/8161652/webrev.01/
>>>
>>> Roland.
>>>