On Fri, 5 Apr 2024 02:40:16 GMT, Dean Long wrote:
> That way C2 can do all its usual optimizations, like unrolling,
> vectorization, and redundant store elimination (if it is an on-heap primitive
> array that was just allocated, then there is no need to zero the parts that
> are being "set").
On Wed, 3 Apr 2024 15:15:24 GMT, Scott Gibbons wrote:
>> This code makes an intrinsic stub for `Unsafe::setMemory` for x86_64. See
>> [this PR](https://github.com/openjdk/jdk/pull/16760) for discussion around
>> this change.
>>
>> Overall, making this an intrinsic improves overall
On Wed, 3 Apr 2024 15:15:24 GMT, Scott Gibbons wrote:
>> This code makes an intrinsic stub for `Unsafe::setMemory` for x86_64. See
>> [this PR](https://github.com/openjdk/jdk/pull/16760) for discussion around
>> this change.
>>
>> Overall, making this an intrinsic improves overall
> This code makes an intrinsic stub for `Unsafe::setMemory` for x86_64. See
> [this PR](https://github.com/openjdk/jdk/pull/16760) for discussion around
> this change.
>
> Overall, making this an intrinsic improves overall performance of
> `Unsafe::setMemory` by up to 4x for all buffer sizes.
