RFR: 8302145: ddepth should be uint in PhaseIdealLoop::register_node()

[Tobias Hartmann]

On Tue, 6 Jun 2023 12:50:50 GMT, Eric Nothum <duke at openjdk.org> wrote:

> Changed the type of the ddepth parameter in PhaseIdealLoop::register_node from int to uint, to avoid potentially unsafe uint -> int casts.
> The method is often used with uint arguments, coming from dom_depth().
> I have verified the calls of PhaseIdealLoop::register_node and have removed related casts.

Looks good to me.

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Marked as reviewed by thartmann (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/14333#pullrequestreview-1466652442