RFR: 8265325: Optimize StubRoutines::dpow() for Math.pow(x, 0.5) [v2]

[Jie Fu]

On Fri, 16 Apr 2021 17:22:32 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

> `r1` should be static value to avoid compiling `sqrt()` method as intrinsic.

Hi @vnkozlov ,

Thanks for your review.

Patch has been updated based on your comments.

To be honest, I didn't get why r1 should be static value.
I think both static and non-static should be OK for the test.

So what would happen is sqrt() is intrinsified?
Could you please make it more clearer?

Thanks.
Best regards,
Jie

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PR: https://git.openjdk.java.net/jdk/pull/3536