[vectorIntrinsics+mask] RFR: 8273205: [vector] Crash in C2_MacroAssembler::vprotate_var after JDK-8271366

[Paul Sandoz]

On Fri, 3 Sep 2021 14:01:25 GMT, Jie Fu <jiefu at openjdk.org> wrote:

> Hi all,
> 
> After JDK-8271366, `arch_supports_vector()` fails to check whether the rotate operation is directly supported by the target ISA.
> 
> So `Matcher::match_rule_supported_vector` should be added in `inline_vector_broadcast_int()` and `inline_vector_nary_operation()` to prevent generation of unsupported rotate operation IR patterns.
> 
> Thanks.
> Best regards,
> Jie

Should this be first fixed in https://github.com/openjdk/jdk/ ?

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PR: https://git.openjdk.java.net/panama-vector/pull/119