RFR: 8321003: RISC-V: C2 MulReductionVI

[Hamlin Li]

On Tue, 30 Apr 2024 09:48:11 GMT, Hamlin Li <mli at openjdk.org> wrote:

> Hi,
> Can you help to review this patch to implement MulReductionVI/MulReductionVL/MulReductionVF/MulReductionVD?
> On riscv, there is no straightforward instructions to do it, but we can do it with a reduction tree, which could reduce the time complexity to lg(N).
> Thanks
> 
> ## Performance
> TBD

in progress...

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PR Comment: https://git.openjdk.org/jdk/pull/19015#issuecomment-2154467169