[vectorIntrinsics] RFR: 8259536: Add cast nodes between interger types implementation for Arm SVE [v3]

[Wang Huang]

On Wed, 27 Jan 2021 09:15:18 GMT, Ningsheng Jian <njian at openjdk.org> wrote:

>> Wang Huang has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   add other I2I cast nodes
>
> src/hotspot/share/opto/vectorIntrinsics.cpp line 334:
> 
>> 332: //                  int start, int step, int wrap, ShuffleIotaOperation<Sh, E> defaultImpl)
>> 333: bool LibraryCallKit::inline_vector_shuffle_iota() {
>> 334:   // TODO shuffle is not supported on SVE
> 
> This check is no necessary? Since SVE does not have Op_VectorLoadConst yet, arch_supports_vector() check below should return false.

Ok. I will remove them.

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PR: https://git.openjdk.java.net/panama-vector/pull/31