RFR: 8289996: Fix array range check hoisting for some scaled loop iv

Fri Jul 15 17:41:59 UTC 2022

On Fri, 15 Jul 2022 17:08:13 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

> @pfustc, can you add to micro cases for similar loops but without vectors? I would like to see how indexes for each unrolled operation is calculated if `*` is kept.

I mean to compare code generation and performance for unrolled loops with and without your changes. May be not new cases but run cases you have with `-XX:-UseSuperWord` auto-vectorization off.

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PR: https://git.openjdk.org/jdk/pull/9508