RFR: 8319577: x86_64 AVX2 intrinsics for Arrays.sort methods (int, float arrays) [v8]

[Srinivas Vamsi Parasa]

On Tue, 5 Dec 2023 19:33:48 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

>> Srinivas Vamsi Parasa has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 17 additional commits since the last revision:
>> 
>>  - Merge branch 'master' of https://git.openjdk.java.net/jdk into simdsort
>>  - add GCC version guards
>>  - Merge branch 'master' of https://git.openjdk.java.net/jdk into simdsort
>>  - Remove C++17 from C flags
>>  - add avoid masked stores operation
>>  - update the code to check for supported simd sort cpus
>>  - Disable AVX2 sort for 64-bit types
>>  - Merge branch 'master' of https://git.openjdk.java.net/jdk into simdsort
>>  - fix jcheck failures due to windows encoding
>>  - fix carriage return and change insertion sort thresholds
>>  - ... and 7 more: https://git.openjdk.org/jdk/compare/d8b29378...bc590d9f
>
> src/java.base/linux/native/libsimdsort/avx512-32bit-qsort.hpp line 235:
> 
>> 233:         return avx512_double_compressstore<zmm_vector<type_t>>(
>> 234:             left_addr, right_addr, k, reg);
>> 235:     }
> 
> Can be removed.

This is needed for AVX512 sort...

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PR Review Comment: https://git.openjdk.org/jdk/pull/16534#discussion_r1417690992