[jdk21u] RFR: 8322790: RISC-V: Tune costs for shuffles with no conversion

[Fei Yang]

On Tue, 30 Jan 2024 18:07:08 GMT, Ilya Gavrilin <igavrilin at openjdk.org> wrote:

> Hi all, I would like to backport [JDK-8322790](https://bugs.openjdk.org/browse/JDK-8322790) to jdk21u in order to improve performance for methods operating with integer representations of floating point values.
> Patch applies clean, backported to jdk22u.

@Ilyagavrilin：Shouldn't this be backported into jdk21u-dev repo first? See [1].

[1] https://wiki.openjdk.org/display/JDKUpdates/JDK+21u

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PR Comment: https://git.openjdk.org/jdk21u/pull/434#issuecomment-1918277968