RFR: 8312425: [vectorapi] AArch64: Optimize vector math operations with SLEEF [v2]

[Hamlin Li]

On Wed, 16 Oct 2024 12:15:51 GMT, Ludovic Henry <luhenry at openjdk.org> wrote:

>> src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp line 8218:
>> 
>>> 8216: 
>>> 8217:         snprintf(ebuf, sizeof(ebuf), "%sdx_%ssve", VectorSupport::mathname[op], ulf);
>>> 8218:         StubRoutines::_vector_d_math[VectorSupport::VEC_SIZE_SCALABLE][op] = (address)os::dll_lookup(libsleef, ebuf);
>> 
>> May I ask why `aarch64` doesn't have C file including macro expansion of function names while `RISC-V` needs it, see added in https://github.com/openjdk/jdk/pull/21083/files#diff-65f5198005719e644115782e7f4dd5a17c0969b01cbb50a1224b6800bbf8f177? Thanks.
>
> Agreed, it seems to be missing `src/jdk.incubator.vector/linux/native/libsleef/lib/vector_math_sve.c` in this PR

Thanks for catching!
Yes, somehow I missed this file and another one for neon in this pr when commit, will add it.

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PR Review Comment: https://git.openjdk.org/jdk/pull/21502#discussion_r1803137855