RFR: 8267356: AArch64: Vector API SVE codegen support [v2]

[Ningsheng Jian]

On Mon, 26 Jul 2021 10:48:30 GMT, Andrew Haley <aph at openjdk.org> wrote:

> 
> You'd still need a way to do that mapping, but it'd be a simple switch in a function that does the conversion to Assembler::Condition. Then you'd just have e.g. sve_cmp(GE, xword ...) and most of this code would disappear. You wouldn't need all the Assembler functions, either.

But Assembler::Condition cannot be encoded to vector compare instructions directly, which means that we need two switch mappings: BoolTest --> Assembler::Condition --> vector compare encodings. That looks more complicated than current implementation?

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PR: https://git.openjdk.java.net/jdk/pull/4122