RFR: 8254369: Node::disconnect_inputs may skip precedences [v3]

[Claes Redestad]

On Thu, 15 Oct 2020 22:14:22 GMT, Xin Liu <xliu at openjdk.org> wrote:

>> 8254369: Node::disconnect_inputs may skip precedences
>
> Xin Liu has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8254369: Node::disconnect_inputs may skip precedences

"where's the if(len() > 0)" I thought for a second, but you're right: len() >= req(), so if len() is 0, then req() must
be 0, too, which means len() > req() is false and we won't accidentally call rm_prec(UINT_MAX)

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Marked as reviewed by redestad (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/664