RFR: 8373026: C2 SuperWord and Vector API: vector algorithms test and benchmark [v11]

[Xiaohong Gong]

On Wed, 21 Jan 2026 09:47:22 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> test/hotspot/jtreg/compiler/vectorization/TestVectorAlgorithms.java line 429:
>> 
>>> 427:                   IRNode.ADD_VI,           "> 0",
>>> 428:                   IRNode.STORE_VECTOR,     "> 0"},
>>> 429:         applyIfCPUFeatureOr = {"sse4.1", "true", "asimd", "true"},
>> 
>> Is this better?
>> 
>> Suggestion:
>> 
>>         applyIfCPUFeatureOr = {"avx512", "true", "sve", "true"},
>
> Are you getting failures with `sse4.1` or `asimd`? Or what is the reason for weakening the conditions here?

There is no failures with these two features because we have checks of `MaxVectorSize` as well. I was thinking that only `avx512` and `sve` CPUs would match the condition `MaxVectorSize >= 64`.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28639#discussion_r2715040988