RFR: 8376187: [VectorAPI] Define new lane type constants and pass them to intrinsic entries [v7]

[Jatin Bhateja]

On Wed, 4 Feb 2026 18:13:08 GMT, Quan Anh Mai <qamai at openjdk.org> wrote:

>> Jatin Bhateja has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Review comments resolution
>
> src/hotspot/share/prims/vectorSupport.hpp line 141:
> 
>> 139: 
>> 140:   // Values in this enum correspond to the jdk.incubator.vector.LaneType ordinal values.
>> 141:   enum LaneType {
> 
> Please specify the underlying type of this enum: `enum LaneType : int`. Otherwise, this will not work:
> 
>     VectorSupport::LaneType vltype = static_cast<VectorSupport::LaneType>(laneType->get_con());
> 
> It is because casting an integer to an unscoped enum is UB if `laneType->get_con()` does not fit into the range of the enum values.

Thanks @merykitty , addressed.

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PR Review Comment: https://git.openjdk.org/jdk/pull/29481#discussion_r2767032912