RFR: 8256730: Code that uses Object.checkIndex() range checks doesn't optimize well

Fri Nov 20 15:08:07 UTC 2020

On Fri, 20 Nov 2020 14:48:29 GMT, Nils Eliasson <neliasso at openjdk.org> wrote:

>> By transforming (CastII (AddI x y)) into (AddI (CastII x) (CastII y))
some CastII can be eliminated which improves address computation code.

> Wasn't there a recent bugfix that did the opposite? I think it was in a different context but I will try to find out.

False alarm. It was a completely different problem.

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PR: https://git.openjdk.java.net/jdk/pull/1342