RFR: 8308869: C2: use profile data in subtype checks when profile has more than one class [v13]

[Martin Doerr]

On Wed, 6 Sep 2023 07:59:08 GMT, Roland Westrelin <roland at openjdk.org> wrote:

> I filed https://bugs.openjdk.org/browse/JDK-8315750 as follow up bug for not yet supported platforms
> FYI @TheRealMDoerr @offamitkumar @bulasevich ( you are listed as maintainer of those ports in https://wiki.openjdk.org/display/HotSpot/Ports )

Thanks! I've split the issue into 3 and assigned the PPC one to myself.

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PR Comment: https://git.openjdk.org/jdk/pull/14375#issuecomment-1708029420