On Tue, 5 Dec 2023 19:37:34 GMT, Jatin Bhateja <jbhat...@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/d4151e5b...bc590d9f
>
> src/java.base/linux/native/libsimdsort/avx2-emu-funcs.hpp line 64:
> 
>> 62:     }
>> 63:     return lut;
>> 64: }();
> 
> Lut64 is needed for compress64 emulation, can be removed.

Removed in the latest commit...

> src/java.base/linux/native/libsimdsort/avx2-emu-funcs.hpp line 234:
> 
>> 232: 
>> 233:     vtype::mask_storeu(leftStore, left, temp);
>> 234: }
> 
> Can be removed if not being used.

Removed in the latest commit...

> src/java.base/linux/native/libsimdsort/avx2-emu-funcs.hpp line 277:
> 
>> 275: 
>> 276:     return _mm_popcnt_u32(shortMask);
>> 277: }
> 
> Can be removed if not being used.

Removed in the latest commit...

> src/java.base/linux/native/libsimdsort/avx2-linux-qsort.cpp line 44:
> 
>> 42:                 break;
>> 43:             case JVM_T_FLOAT:
>> 44:                 avx2_fast_sort((float*)array, from_index, to_index, 
>> INSERTION_SORT_THRESHOLD_32BIT);
> 
> Assertions for unsupported types.

Added in the latest commit...

> src/java.base/linux/native/libsimdsort/avx2-linux-qsort.cpp line 56:
> 
>> 54:             case JVM_T_FLOAT:
>> 55:                 avx2_fast_partition((float*)array, from_index, to_index, 
>> pivot_indices, index_pivot1, index_pivot2);
>> 56:                 break;
> 
> Please add assertion for unsupported types.

Added in the latest commit...

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

PR Review Comment: https://git.openjdk.org/jdk/pull/16534#discussion_r1417701182
PR Review Comment: https://git.openjdk.org/jdk/pull/16534#discussion_r1417702999
PR Review Comment: https://git.openjdk.org/jdk/pull/16534#discussion_r1417702251
PR Review Comment: https://git.openjdk.org/jdk/pull/16534#discussion_r1417701469
PR Review Comment: https://git.openjdk.org/jdk/pull/16534#discussion_r1417701705

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