RFR: 8303040: linux PPC64le: Implementation of Foreign Function & Memory API (Preview) [v2]

Thu Feb 23 10:23:05 UTC 2023

On Thu, 23 Feb 2023 04:44:18 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

> 
> Correct, `extsw` performs a `I2L` conversion. I had thought about this already, but I think my current implementation is more efficient as it combines register moves with the 64 bit extend. Your proposal would generate separate extend and move instructions, right?

Would it be possible to generate a biding cast + move and the recognize the pattern in the HS backend and optimize it away as a `extsw` ?

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PR: https://git.openjdk.org/jdk/pull/12708