RFR: 8295968: RISC-V: Rename some assembler intrinsic functions for RVV 1.0.

[Dingli Zhang]

On Thu, 27 Oct 2022 07:03:53 GMT, Zixian Cai <zcai at openjdk.org> wrote:

> Not a reviewer. The changes match the spec. But perhaps it's a good idea to still keep the old names for compatibility per the spec. See line comments.

Hi @caizixian, thanks for review!
In a compiler (e.g. llvm) these alias need to be preserved because the assembly file only has instruction names, but does it also need to be preserved in a virtual machine like openjdk?
If these older assembly mnemonics need to be retained as aliases, I think we can add it inside the macro assembler.

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PR: https://git.openjdk.org/jdk/pull/10878