On Sat, 12 Nov 2022 01:06:27 GMT, Vladimir Ivanov <vliva...@openjdk.org> wrote:
>> Claes Redestad has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> Missing & 0xff in StringLatin1::hashCode
>
> src/hotspot/cpu/x86/x86_64.ad line 12073:
>
>> 12071: legRegD tmp_vec13, rRegI tmp1, rRegI tmp2,
>> rRegI tmp3, rFlagsReg cr)
>> 12072: %{
>> 12073: predicate(UseAVX >= 2 && ((VectorizedHashCodeNode*)n)->mode() ==
>> VectorizedHashCodeNode::LATIN1);
>
> If you represent `VectorizedHashCodeNode::mode()` as an input, it would allow
> to abstract over supported modes and come up with a single AD instruction.
> Take a look at `VectorMaskCmp` for an example (not a perfect one though since
> it has both _predicate member and constant input which is redundant).
Thanks for the pointer, I'll check it out!
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PR: https://git.openjdk.org/jdk/pull/10847
