On Fri, 25 Apr 2025 09:41:21 GMT, Jatin Bhateja wrote:
>> It does look attractive, but macro expansion-based solution requires JVM to
>> internalize such operations and their properties.
>>
>> IMO a higher-level solution based on more generic JVM primitives would
>> enable libraries to proper
On Fri, 25 Apr 2025 05:26:35 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
On Fri, 25 Apr 2025 05:26:35 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
On Thu, 24 Apr 2025 23:03:09 GMT, Vladimir Ivanov wrote:
>> src/hotspot/share/opto/vectorIntrinsics.cpp line 563:
>>
>>> 561: debug_name =
>>> debug_name_oop->const_oop()->as_instance()->java_lang_String_str(buf,
>>> buflen);
>>> 562: }
>>> 563: Node* vcall = make_runtime_call(RC_VECTO
On Fri, 25 Apr 2025 00:06:28 GMT, Fei Yang wrote:
>> Vladimir Ivanov has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> Improve comments
>
> src/hotspot/cpu/riscv/riscv.ad line 1947:
>
>> 1945: // Vector calling convention not yet implemen
> 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
On Thu, 24 Apr 2025 23:29:28 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
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
>> `
> 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
On Thu, 24 Apr 2025 18:57:11 GMT, Jatin Bhateja wrote:
>> Vladimir Ivanov has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> CPUFeatures: RISC-V support
>
> src/hotspot/share/opto/vectorIntrinsics.cpp line 563:
>
>> 561: debug_name =
On Wed, 23 Apr 2025 23:54:01 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
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 23:54:01 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
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 08:54:23 GMT, Hamlin Li wrote:
>> The intention is to align `_features_string` with `_features` which
>> enumerates well-known CPU capabilities JVM manages. As of now,
>> `_features_string` contains more information, so I introduced
>> `_cpu_info_string` to keep it.
>>
>>
> 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
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 00:23:46 GMT, Vladimir Ivanov wrote:
>> A simple fix could be:
>>
>> diff --git a/src/hotspot/os_cpu/linux_riscv/vm_version_linux_riscv.cpp
>> b/src/hotspot/os_cpu/linux_riscv/vm_version_linux_riscv.cpp
>> index 484a2a645aa..a785dc65c9e 100644
>> --- a/src/hotspot/os_cpu/lin
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
On Fri, 18 Apr 2025 16:16:28 GMT, Jorn Vernee wrote:
>> Vladimir Ivanov has updated the pull request with a new target base due to a
>> merge or a rebase. The incremental webrev excludes the unrelated changes
>> brought in by the merge/rebase. The pull request contains 24 additional
>> commits
On Tue, 22 Apr 2025 14:46:21 GMT, Ludovic Henry wrote:
>> Vladimir Ivanov has updated the pull request with a new target base due to a
>> merge or a rebase. The incremental webrev excludes the unrelated changes
>> brought in by the merge/rebase. The pull request contains 24 additional
>> commi
On Tue, 22 Apr 2025 16:46:44 GMT, Hamlin Li wrote:
>> src/hotspot/share/runtime/abstract_vm_version.cpp line 349:
>>
>>> 347: assert(features_offset <= cpu_info_string_len, "");
>>> 348: if (features_offset < cpu_info_string_len) {
>>> 349: assert(cpu_info_string[features_offset + 0] ==
On Tue, 22 Apr 2025 13:45:26 GMT, Hamlin Li wrote:
>> Vladimir Ivanov has updated the pull request with a new target base due to a
>> merge or a rebase. The incremental webrev excludes the unrelated changes
>> brought in by the merge/rebase. The pull request contains 24 additional
>> commits s
> 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
On Thu, 17 Apr 2025 18:03:47 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
On Tue, 22 Apr 2025 16:34:21 GMT, Hamlin Li wrote:
>> Vladimir Ivanov has updated the pull request with a new target base due to a
>> merge or a rebase. The incremental webrev excludes the unrelated changes
>> brought in by the merge/rebase. The pull request contains 24 additional
>> commits s
On Thu, 17 Apr 2025 18:03:47 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
On Thu, 17 Apr 2025 18:03:47 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
On Thu, 17 Apr 2025 01:36:39 GMT, Xiaohong Gong wrote:
>> How does it work now? The code in `generate_vector_math_stubs()` in
>> `stubGenerator_aarch64.cpp` only populates `VEC_SIZE_SCALABLE` shapes with
>> SVE versions.
>
> Please see the `addr` definition code in
> https://github.com/openjdk
On Thu, 17 Apr 2025 18:03:47 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
On Thu, 17 Apr 2025 18:08:21 GMT, Vladimir Ivanov wrote:
>> Please see the `addr` definition code in
>> https://github.com/openjdk/jdk/blob/master/src/hotspot/share/opto/vectorIntrinsics.cpp#L1877
>> . If queried `addr` returns `nullptr` for 256-bit vectors, and the arch
>> supports scalable v
> 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
> 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
On Wed, 16 Apr 2025 18:26:18 GMT, Vladimir Ivanov wrote:
>> src/jdk.incubator.vector/share/classes/jdk/incubator/vector/VectorMathLibrary.java
>> line 240:
>>
>>> 238: if (isAARCH64() && vspecies.vectorBitSize() > 128) {
>>> 239: return false; // FIXME: SVE s
> 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
On Wed, 16 Apr 2025 19:29:07 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
On Wed, 16 Apr 2025 21:27:32 GMT, Vladimir Ivanov wrote:
> Both `CPUFeatures.validateFeatures` and the checks it performs are
> assertions, so it has to be explicitly enabled by `-esa`. The assert
> validates some assumptions the code has about the format of features string
> VM produces. And
On Wed, 16 Apr 2025 19:29:07 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
On Wed, 16 Apr 2025 02:11:09 GMT, Xiaohong Gong wrote:
>> Vladimir Ivanov has updated the pull request with a new target base due to a
>> merge or a rebase. The incremental webrev excludes the unrelated changes
>> brought in by the merge/rebase. The pull request contains 19 additional
>> commi
> 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
On Wed, 16 Apr 2025 00:25:59 GMT, Paul Sandoz wrote:
>> Vladimir Ivanov has updated the pull request with a new target base due to a
>> merge or a rebase. The incremental webrev excludes the unrelated changes
>> brought in by the merge/rebase. The pull request contains 19 additional
>> commits
On Wed, 16 Apr 2025 01:47:02 GMT, Xiaohong Gong wrote:
>> src/hotspot/share/opto/vectorIntrinsics.cpp line 488:
>>
>>> 486: // V binaryOp(long address, Class vClass, Class
>>> elementType, int length,
>>> 487: //V v1, V v2,
>>> 488: //BinaryOperation defaultImpl)
>>
>>
> 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
On Fri, 11 Apr 2025 21:23:52 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
On Wed, 16 Apr 2025 00:20:07 GMT, Paul Sandoz wrote:
>> Vladimir Ivanov has updated the pull request with a new target base due to a
>> merge or a rebase. The incremental webrev excludes the unrelated changes
>> brought in by the merge/rebase. The pull request contains 19 additional
>> commits
On Tue, 15 Apr 2025 17:43:52 GMT, Vladimir Ivanov wrote:
>> src/jdk.incubator.vector/share/classes/jdk/incubator/vector/VectorMathLibrary.java
>> line 198:
>>
>>> 196: if (vspecies.vectorBitSize() < 128) {
>>> 197: return false; // 64-bit vectors are not supported
>>
On Fri, 11 Apr 2025 21:23:52 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
On Tue, 15 Apr 2025 09:29:32 GMT, Xiaohong Gong wrote:
>> Vladimir Ivanov has updated the pull request with a new target base due to a
>> merge or a rebase. The incremental webrev excludes the unrelated changes
>> brought in by the merge/rebase. The pull request contains 19 additional
>> commi
On Fri, 11 Apr 2025 21:23:52 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
On Mon, 7 Apr 2025 23:20:05 GMT, Vladimir Ivanov wrote:
>> src/jdk.incubator.vector/share/classes/jdk/incubator/vector/CPUFeatures.java
>> line 60:
>>
>>> 58: }
>>> 59:
>>> 60: public static class X64 {
>>
>> Should we create `src/jdk.incubator.vector/cpu/` for CPU specific
>> inform
On Mon, 7 Apr 2025 23:32:05 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 en
On Mon, 7 Apr 2025 06:44:16 GMT, Per Minborg wrote:
>> Vladimir Ivanov has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> features_string -> cpu_info_string
>
> src/jdk.incubator.vector/share/classes/jdk/incubator/vector/VectorMathLibrary.j
On Mon, 7 Apr 2025 17:01:19 GMT, Vladimir Kozlov wrote:
>> Vladimir Ivanov has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> features_string -> cpu_info_string
>
> src/jdk.incubator.vector/share/classes/jdk/incubator/vector/CPUFeatures.jav
On Fri, 4 Apr 2025 22:52:24 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 enables
On Mon, 7 Apr 2025 17:44:33 GMT, Chen Liang wrote:
>> Vladimir Ivanov has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> features_string -> cpu_info_string
>
> src/jdk.incubator.vector/share/classes/jdk/incubator/vector/CPUFeatures.java
>
> 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
On Mon, 7 Apr 2025 23:03:03 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 en
> 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
> 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
On Fri, 4 Apr 2025 22:52:24 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 enables
On Fri, 4 Apr 2025 22:52:24 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 enables
On Fri, 4 Apr 2025 22:52:24 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 enables
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