On Sun, 10 Aug 2025 05:23:23 GMT, Emanuel Peter <epe...@openjdk.org> wrote:
>> Galder Zamarreño has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> Check at the very least that auto vectorization is supported
>
> src/hotspot/share/opto/superword.cpp line 1635:
>
>> 1633: } else if (VectorNode::is_convert_opcode(opc)) {
>> 1634: retValue = VectorCastNode::implemented(opc, size,
>> velt_basic_type(p0->in(1)), velt_basic_type(p0));
>> 1635: } else if (VectorNode::is_reinterpret_opcode(opc)) {
>
> How does this affect `Op_ReinterpretHF2S` that is also in
> `VectorNode::is_reinterpret_opcode`?
> I'm afraid that we need to test this with hardware or Intel's SDE, to make
> sure we have it running on a VM that actually supports Float16. Otherwise
> these instructions may not be used, and hence not tested right.
>
> @galderz Can you run the relevant tests?
Would you run specific tiers in those platforms? Just hotspot compiler? Or
individual tests such as `ConvF2HFIdealizationTests` and
`TestFloat16ScalarOperations`?
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PR Review Comment: https://git.openjdk.org/jdk/pull/26457#discussion_r2266889792
