On Thu, 24 Apr 2025 11:33:43 GMT, Hamlin Li wrote:
>> FTR both `VectorSupport.getMaxLaneCount()` and `CPUFeatures` don't rely on
>> raw list of ISA extensions CPU supports, but only those reported by the JVM.
>> So, if some feature support is disabled on JVM side, it won't be reported by
>> `
On Wed, 23 Apr 2025 23:55:50 GMT, Vladimir Ivanov wrote:
>> Does the following check catch `UseRVV == false` case on RISC-V?
>>
>> public boolean isSupported(Operator op, VectorSpecies vspecies) {
>> ...
>> int maxLaneCount =
>> VectorSupport.getMaxLaneCount(vspecies.elementType())
On Wed, 23 Apr 2025 18:11:42 GMT, Vladimir Ivanov wrote:
>> In previous code, we use `UseRVV` to detect if rvv extension is supported.
>>
>> On the other hand, user can choose to disable UseRVV if they want even if
>> rvv extension is supported on the running machine. In this sense, there
>> c
On Wed, 23 Apr 2025 08:43:47 GMT, Hamlin Li wrote:
>> src/jdk.incubator.vector/share/classes/jdk/incubator/vector/VectorMathLibrary.java
>> line 288:
>>
>>> 286: IntFunction>
>>> implSupplier,
>>> 287: V v) {
>>> 288: var entry = lookup(op, opc, vspe
On Wed, 23 Apr 2025 08:40:44 GMT, Hamlin Li wrote:
>> Vladimir Ivanov has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> Avoid thread state transition in VectorSupport_GetCPUFeatures
>
> src/jdk.incubator.vector/share/classes/jdk/incubator/
On Wed, 23 Apr 2025 01:02:19 GMT, Vladimir Ivanov wrote:
>> Migrate Vector API math library (SVML and SLEEF) linkage from native code
>> (in JVM) to Java FFM API.
>>
>> Since FFM API doesn't support vector calling conventions yet, migration
>> affects only symbol lookup for now. But it still e
> Migrate Vector API math library (SVML and SLEEF) linkage from native code (in
> JVM) to Java FFM API.
>
> Since FFM API doesn't support vector calling conventions yet, migration
> affects only symbol lookup for now. But it still enables significant
> simplifications on JVM side.
>
> The patc
