RFR: 8332265: RISC-V: Materialize pointers faster by using a temp register [v6]

[Robbin Ehn]

On Thu, 23 May 2024 15:04:22 GMT, Fei Yang <fyang at openjdk.org> wrote:

> Updated change looks good. It would be nice to see how much this will benefit performance.

I tried todo some benchmarks but it seems like the error of them are larger than the benefit.
I'll try todo some longer runs, and minimize the error.

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PR Comment: https://git.openjdk.org/jdk/pull/19246#issuecomment-2129297347