RFR: 8252505: C1/C2 compiler support for blackholes [v24]

[Thomas Wuerthinger]

On Mon, 7 Dec 2020 12:25:16 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

> If possible change in behavior is a real concern, the implementation can be changed to affect only effect-free methods (e.g., applied only to empty methods).

Yes, applying it only to effect-free methods would be perfect. For such methods it is indeed comparable with the other compiler commands.

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PR: https://git.openjdk.java.net/jdk/pull/1203