RFR: 8256392: C2: Various Node cleanups

Tue Nov 17 09:20:14 UTC 2020

On Mon, 16 Nov 2020 12:22:26 GMT, Claes Redestad <redestad at openjdk.org> wrote:

> - Unused methods:
>  Node::walk, walk_, nop, lookup, rpop
>  Node_Array::reset, sort
> - Disallowing 0 as values to OptoNodeListSize and OptoBlockListSize can simplify some logic: e.g., Node_Array::_max > 0 becomes an invariant (with reset unused and removed)

Looks good!

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Marked as reviewed by neliasso (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/1223