RFR: 8252848: Optimize small primitive arrayCopy operations through partial inlining using AVX-512 masked instructions [v11]

[Vladimir Kozlov]

On Tue, 3 Nov 2020 19:16:21 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> Jatin Bhateja has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 11 commits:
>> 
>>  - JDK-8252848: Review comments addressed.
>>  - Merge remote-tracking branch 'origin' into JDK-8252848
>>  - JDK-8252848 : Replacing generic assembler routine evmovdqu with macro assembly routine calling type specific leaf level assembly functions.
>>  - Merge branch 'master' of http://github.com/openjdk/jdk into JDK-8252848
>>  - Merge branch 'master' of http://github.com/openjdk/jdk into JDK-8252848
>>  - JDK-8252848 : Review comments resolution.
>>  - Merge remote-tracking branch 'upstream' into JDK-8252848
>>  - Merge branch 'master' of http://github.com/openjdk/jdk into JDK-8252848
>>  - Replacing explicit type checks with existing type checking routines
>>  - Merge branch 'master' of http://github.com/openjdk/jdk into JDK-8252848
>>  - ... and 1 more: https://git.openjdk.java.net/jdk/compare/4031cb41...9e85592a
>
> src/hotspot/cpu/x86/vm_version_x86.cpp line 1423:
> 
>> 1421:     if (ArrayCopyPartialInlineSize > MaxVectorSize) {
>> 1422:       ArrayCopyPartialInlineSize = MaxVectorSize;
>> 1423:       warning("Setting ArrayCopyPartialInlineSize as MaxVectorSize");
> 
> warning only if ArrayCopyPartialInlineSize is not default.

I don't see your fix for my comment. I asked to add `if(!FLAG_IS_DEFAULT(ArrayCopyPartialInlineSize))` check

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PR: https://git.openjdk.java.net/jdk/pull/302