RFR: 8375498: [VectorAPI] Dump primary vector IR details with -XX:+TraceNewVectors [v2]

[Emanuel Peter]

On Wed, 21 Jan 2026 10:00:12 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

>> src/hotspot/share/opto/vectorIntrinsics.cpp line 465:
>> 
>>> 463:     default: fatal("unsupported arity: %d", n);
>>> 464:   }
>>> 465:   trace_vector(operation);
>> 
>> So why not adding this under line-475?
>
> Only added trace_vector calls for primary vector IR for an inline expander for now.

But the `VectorBlendNode` node would also be useful if we have a masked operation but don't use a predicated instruction, don't you think?

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PR Review Comment: https://git.openjdk.org/jdk/pull/29265#discussion_r2711854763