[vectorIntrinsics] RFR: 8264153: Add Insert integer nodes implementation for Arm SVE

[Wang Huang]

On Tue, 30 Mar 2021 02:38:54 GMT, Ningsheng Jian <njian at openjdk.org> wrote:

>> Add Insert integer nodes implementation for Arm SVE, such like VectorInsert(B/S/I/L) Node.
>> * add `sve_index` & `sve_cpy`
>
> src/hotspot/cpu/aarch64/aarch64_sve_ad.m4 line 1908:
> 
>> 1906:     __ sve_cmpeq(as_PRegister($pTmp$$reg), size, ptrue,
>> 1907:                  as_FloatRegister($tmp$$reg), as_FloatRegister($tmp2$$reg));
>> 1908:     // If register is the same, then move is not needed.
> 
> If src and dst are the same reg,

Thank you for your review. I will fix that.

> src/hotspot/cpu/aarch64/assembler_aarch64.hpp line 3540:
> 
>> 3538: // SVE INDEX (immediates)
>> 3539:   void sve_index(FloatRegister Zd, SIMD_RegVariant T,
>> 3540:             int16_t imm1, int16_t imm2) {
> 
> int instead of int16_t?
> Style: Merge into one line, or fix the second line "int16_t imm1..." indentation.

OK. I will fix that.

-------------

PR: https://git.openjdk.java.net/panama-vector/pull/54