On Sun, 13 Oct 2024 11:18:01 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Sun, 13 Oct 2024 11:18:01 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Tue, 15 Oct 2024 20:57:05 GMT, Paul Sandoz wrote:
>>> I gave it a quick scan, and I have no further comments. LGTM.
>>
>> Thank you, i will kick off an internal test.
>
>> > I gave it a quick scan, and I have no further comments. LGTM.
>>
>> Thank you, i will kick off an internal test.
>
>
On Tue, 15 Oct 2024 16:03:13 GMT, Paul Sandoz wrote:
> > I gave it a quick scan, and I have no further comments. LGTM.
>
> Thank you, i will kick off an internal test.
Tier 1 to 3 tests pass.
-
PR Comment: https://git.openjdk.org/jdk/pull/20508#issuecomment-2415121395
On Tue, 15 Oct 2024 09:35:23 GMT, Emanuel Peter wrote:
> I gave it a quick scan, and I have no further comments. LGTM.
Thank you, i will kick off an internal test.
-
PR Comment: https://git.openjdk.org/jdk/pull/20508#issuecomment-2414431367
On Sun, 13 Oct 2024 11:18:01 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Sun, 13 Oct 2024 11:18:01 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Thu, 3 Oct 2024 19:05:14 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Thu, 3 Oct 2024 19:05:14 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Thu, 3 Oct 2024 05:04:35 GMT, Jatin Bhateja wrote:
>> I see the problem with float/double vectors. Let us do the rearrange form
>> only for Integral (byte, short, int, long) vectors then. For float/double
>> vector we could keep the code that you have currently.
>
> You will also need additi
On Thu, 3 Oct 2024 05:09:22 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Thu, 3 Oct 2024 05:04:35 GMT, Jatin Bhateja wrote:
>> I see the problem with float/double vectors. Let us do the rearrange form
>> only for Integral (byte, short, int, long) vectors then. For float/double
>> vector we could keep the code that you have currently.
>
> You will also need additi
On Tue, 1 Oct 2024 18:03:06 GMT, Sandhya Viswanathan
wrote:
>>> This could instead be: src1.rearrange(this.lanewise(VectorOperators.AND, 2
>>> * VLENGTH - 1).toShuffle(), src2); Or even simplified to:
>>> src1.rearrange(this.toShuffle(), src2);
>>
>> Yes, this may save additional allocation p
On Tue, 1 Oct 2024 18:10:10 GMT, Sandhya Viswanathan
wrote:
>> Jatin Bhateja has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Review comments resolutions.
>
> src/hotspot/share/opto/vectorIntrinsics.cpp line 2797:
>
>> 2795:
>> 2796:
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Tue, 1 Oct 2024 09:51:27 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Tue, 1 Oct 2024 09:53:02 GMT, Jatin Bhateja wrote:
>> Thanks for the example. Yes, you have a point there. So we would need to do:
>>src1.rearrange(this.lanewise(VectorOperators.AND, 2 * VLENGTH -
>> 1).toShuffle(), src2);
>
>> This could instead be: src1.rearrange(this.lanewise(VectorOp
On Mon, 30 Sep 2024 22:39:09 GMT, Sandhya Viswanathan
wrote:
>> I think you have to do the masking before conversion -
>> `vec.lanewise(VectorOperators.AND, 2 * VLENGTH - 1).toShuffle()` is not the
>> same as `vec.toShuffle()` for all inputs.
>>
>>
>> jshell> IntVector indexes = IntVector.fr
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Mon, 30 Sep 2024 22:51:57 GMT, Sandhya Viswanathan
wrote:
>> Jatin Bhateja has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Handling NPOT vector length for AArch64 SVE with vector sizes varying b/w
>> 128 and 2048 bits at 128 bit inc
On Tue, 24 Sep 2024 07:10:24 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Mon, 30 Sep 2024 21:28:22 GMT, Paul Sandoz wrote:
>> src/jdk.incubator.vector/share/classes/jdk/incubator/vector/ByteVector.java
>> line 551:
>>
>>> 549: return ((ByteVector)src1).vectorFactory(res);
>>> 550: }
>>> 551:
>>
>> This could instead be:
>>src1.rearrange(this.lan
On Tue, 24 Sep 2024 07:10:24 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Sat, 28 Sep 2024 17:37:10 GMT, Sandhya Viswanathan
wrote:
>> Jatin Bhateja has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Handling NPOT vector length for AArch64 SVE with vector sizes varying b/w
>> 128 and 2048 bits at 128 bit inc
On Tue, 24 Sep 2024 07:10:24 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Wed, 18 Sep 2024 07:21:52 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Tue, 17 Sep 2024 07:02:20 GMT, Jatin Bhateja wrote:
>> src/hotspot/share/opto/vectornode.cpp line 2122:
>>
>>> 2120: // index format by subsequent VectorLoadShuffle.
>>> 2121: int cast_vopc = VectorCastNode::opcode(0, index_elem_bt, true);
>>> 2122: Node* index_byte_vec =
>>> phase->tr
On Wed, 18 Sep 2024 07:21:52 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Fri, 13 Sep 2024 14:49:01 GMT, Emanuel Peter wrote:
>> src/jdk.incubator.vector/share/classes/jdk/incubator/vector/ByteVector.java
>> line 544:
>>
>>> 542: byte[] vpayload1 = ((ByteVector)v1).vec();
>>> 543: byte[] vpayload2 = ((ByteVector)v2).vec();
>>> 544: byte[] v
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Tue, 17 Sep 2024 07:02:12 GMT, Jatin Bhateja wrote:
>> src/jdk.incubator.vector/share/classes/jdk/incubator/vector/X-Vector.java.template
>> line 2974:
>>
>>> 2972: final $abstractvectortype$ selectFromTemplate(Class>> Vector<$Boxbitstype$>> indexVecClass,
>>> 2973:
On Tue, 17 Sep 2024 07:02:15 GMT, Jatin Bhateja wrote:
>> src/jdk.incubator.vector/share/classes/jdk/incubator/vector/X-Vector.java.template
>> line 561:
>>
>>> 559: for (int i = 0; i < vlen; i++) {
>>> 560: int index = ((int)vecPayload1[i]);
>>> 561: res[i] = in
On Mon, 16 Sep 2024 07:40:33 GMT, Emanuel Peter wrote:
>> Patch includes tests for all the species (combination of vector type and
>> sizes), each vector kernel is validated against equivalent scalar
>> implementation, scenario which you are referring is implicitly handled
>> though tests.
>
>
On Fri, 13 Sep 2024 14:43:42 GMT, Emanuel Peter wrote:
>> Original API did throw IndexOutOfBoundsException, but later on we have moved
>> away from exception throwing semantics to wrapping semantics.
>> Please find details at following comment
>> https://github.com/openjdk/jdk/pull/20508#issueco
On Mon, 16 Sep 2024 18:35:42 GMT, Paul Sandoz wrote:
>> Jatin Bhateja has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Disabling VectorLoadShuffle bypassing optimization to comply with
>> rearrange semantics at IR level.
>
> src/jdk.incu
On Mon, 16 Sep 2024 07:27:44 GMT, Emanuel Peter wrote:
>> Please at least add a comment why you are not following my suggestion. I
>> feel like the work I put in to review is not being respected when comments
>> are just silently resolved without any action or comment.
>
> I really do think tha
On Mon, 16 Sep 2024 07:45:51 GMT, Emanuel Peter wrote:
>> Jatin Bhateja has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Disabling VectorLoadShuffle bypassing optimization to comply with
>> rearrange semantics at IR level.
>
> src/hotspo
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Mon, 16 Sep 2024 02:58:41 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Mon, 16 Sep 2024 02:58:41 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Fri, 13 Sep 2024 17:38:29 GMT, Jatin Bhateja wrote:
>> That does not answer my question. If the backend operations you implemented
>> would have the wrong vector-length: do we have any tests that would catch
>> that? Often that requires not just going "up" with a loop but also "counting
>>
On Mon, 16 Sep 2024 07:35:46 GMT, Emanuel Peter wrote:
>> Jatin Bhateja has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Disabling VectorLoadShuffle bypassing optimization to comply with
>> rearrange semantics at IR level.
>
> src/hotspo
On Mon, 16 Sep 2024 07:27:06 GMT, Emanuel Peter wrote:
>> src/hotspot/share/opto/vectornode.cpp line 2148:
>>
>>> 2146:
>>> 2147: BoolTest::mask pred = BoolTest::lt;
>>> 2148: ConINode* pred_node =
>>> (ConINode*)phase->makecon(TypeInt::make(pred));
>>
>> Would `as_ConI()` be a better alt
On Fri, 30 Aug 2024 14:44:05 GMT, Emanuel Peter wrote:
>> Jatin Bhateja has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Adding descriptive comments
>
> src/hotspot/share/opto/vectornode.cpp line 2104:
>
>> 2102: // MASK)
>> 21
On Mon, 16 Sep 2024 02:58:41 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Sun, 15 Sep 2024 07:16:17 GMT, Emanuel Peter wrote:
> > > Can you please **define** somewhere what it means to `prune indexes`? It
> > > does not help me much more than the previous "massaging indexes" you had
> > > before I asked you to change it.
> > > > Also: I'm a little worried about th
On Fri, 13 Sep 2024 18:27:07 GMT, Jatin Bhateja wrote:
> > Can you please **define** somewhere what it means to `prune indexes`? It
> > does not help me much more than the previous "massaging indexes" you had
> > before I asked you to change it.
> > > Also: I'm a little worried about the semant
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Fri, 13 Sep 2024 14:53:18 GMT, Emanuel Peter wrote:
> Can you please **define** somewhere what it means to `prune indexes`? It does
> not help me much more than the previous "massaging indexes" you had before I
> asked you to change it.
>
> > Also: I'm a little worried about the semantics c
On Fri, 13 Sep 2024 14:45:29 GMT, Emanuel Peter wrote:
>> Existing vectorAPI inline expansion entry points explicitly pass lane type
>> and count as intrinsic arguments, this is used to create concrete ideal
>> vector types.
>
> That does not answer my question. If the backend operations you im
On Fri, 6 Sep 2024 18:08:09 GMT, Jatin Bhateja wrote:
>> src/jdk.incubator.vector/share/classes/jdk/incubator/vector/Vector.java line
>> 2770:
>>
>>> 2768:
>>> 2769: /**
>>> 2770: * Rearranges the lane elements of two vectors, selecting lanes
>>
>> I have a bit of a name concern here
On Fri, 6 Sep 2024 18:13:34 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Tue, 3 Sep 2024 11:45:53 GMT, Emanuel Peter wrote:
>> Jatin Bhateja has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Adding descriptive comments
>
> src/jdk.incubator.vector/share/classes/jdk/incubator/vector/ByteVector.java
> line 54
On Fri, 6 Sep 2024 18:08:04 GMT, Jatin Bhateja wrote:
>> test/jdk/jdk/incubator/vector/ShortMaxVectorTests.java line 1048:
>>
>>> 1046: return
>>> SHORT_GENERATOR_SELECT_FROM_TRIPLES.stream().map(List::toArray).
>>> 1047: toArray(Object[][]::new);
>>> 1048: }
>>
>>
On Fri, 30 Aug 2024 14:57:31 GMT, Emanuel Peter wrote:
>> src/hotspot/share/opto/vectornode.cpp line 2183:
>>
>>> 2181: };
>>> 2182: // Targets emulating unsupported permutation for certain vector
>>> types
>>> 2183: // may need to message the indexes to match the users intent.
>>
On Fri, 30 Aug 2024 14:40:35 GMT, Emanuel Peter wrote:
>> Jatin Bhateja has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Adding descriptive comments
>
> src/hotspot/share/opto/vectornode.cpp line 2159:
>
>> 2157:
>> 2158: vmask_type =
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Thu, 29 Aug 2024 05:42:58 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Fri, 30 Aug 2024 14:02:46 GMT, Emanuel Peter wrote:
>> Jatin Bhateja has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Adding descriptive comments
>
> src/hotspot/cpu/x86/x86.ad line 10490:
>
>> 10488:
>> 10489:
>> 10490: instruct se
On Fri, 30 Aug 2024 13:17:26 GMT, Emanuel Peter wrote:
>> Jatin Bhateja has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Adding descriptive comments
>
> src/hotspot/cpu/x86/matcher_x86.hpp line 215:
>
>> 213: }
>> 214:
>> 215: stati
On Thu, 29 Aug 2024 05:42:58 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Tue, 27 Aug 2024 20:00:56 GMT, Paul Sandoz wrote:
> My comment was related to understanding what `SelectFromTwoVectorNode::Ideal`
> and `VectorRearrangeNode::Ideal` are doing - the former lowers, if needed,
> into the rearrange expression and the latter adjusts, if needed, the index
> vecto
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On 23 Aug 2024, at 15:33, Paul Sandoz wrote:
> The float/double conversion bothers me, not suggesting we do something about
> it here, noting down for any future conversation on shuffles.
Yes, it’s a pain which is noticeable in the vector/shuffle conversions.
In the worst case it adds dynamic re
On Tue, 27 Aug 2024 09:58:44 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Fri, 23 Aug 2024 22:29:46 GMT, Paul Sandoz wrote:
> API changes look good. (Note at the moment we are not proposing to change how
> shuffles works - as you point out the two vector `selectFrom` and `rearrange`
> differ in the index representation.)
>
> IIUC if the more direct two-table inst
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Fri, 23 Aug 2024 06:09:48 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Fri, 23 Aug 2024 05:46:29 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Wed, 21 Aug 2024 16:42:44 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On Wed, 21 Aug 2024 18:27:09 GMT, Paul Sandoz wrote:
> Is it possible for the intrinsic to be responsible for wrapping, if needed?
> If was looking at
> [`vpermi2b`](https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=vpermi2b&ig_expand=4917,4982,5004,5010,5014&techs=A
On 21 Aug 2024, at 11:30, Paul Sandoz wrote:
> Is it possible for the intrinsic to be responsible for wrapping, if needed?
> If was looking at
> [`vpermi2b`](https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=vpermi2b&ig_expand=4917,4982,5004,5010,5014&techs=AVX_512)
>
On Wed, 21 Aug 2024 16:42:44 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
On 21 Aug 2024, at 10:51, Sandhya Viswanathan wrote:
> @jatin-bhateja Thanks, the PR ((https://github.com/openjdk/jdk/pull/20634) is
> still work in progress and can be simplified much further. The changes I am
> currently working on are do wrap by default for rearrange and selectFrom as
> sugg
On Wed, 21 Aug 2024 16:49:40 GMT, Jatin Bhateja wrote:
>> Jatin Bhateja has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Pass explicit wrap argument to selectFrom API with default value set to
>> true.
>
> Hi @rose00 , @sviswa7 , @PaulSa
On Wed, 21 Aug 2024 16:42:44 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Mon, 19 Aug 2024 07:36:15 GMT, Jatin Bhateja wrote:
>> Hi All,
>>
>> As per the discussion on panama-dev mailing list[1], patch adds the support
>> for following new two vector permutation APIs.
>>
>>
>> Declaration:-
>> Vector.selectFrom(Vector v1, Vector v2)
>>
>>
>> Semantics:-
>>
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using index values stored in the lanes of "this" vector, assembl
On Thu, 8 Aug 2024 06:57:28 GMT, Jatin Bhateja wrote:
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using in
On Thu, 8 Aug 2024 06:57:28 GMT, Jatin Bhateja wrote:
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using in
(Better late than never, although I wish I’d been more explicit
about this on panama-dev.)
I think we should be moving away from throwing exceptions on all
reorder/shuffle/permute vector ops, and moving toward wrapping.
These ops all operate on vectors (small arrays) of vector lane
indexes (small
On Mon, 12 Aug 2024 22:03:44 GMT, Paul Sandoz wrote:
> The results look promising. I can provide guidance on the specification e.g.,
> we can specify the behavior in terms of rearrange, with the addition of
> throwing on out of bounds indexes.
>
> Regarding the throwing of exceptions, some wid
On Thu, 8 Aug 2024 06:57:28 GMT, Jatin Bhateja wrote:
> Hi All,
>
> As per the discussion on panama-dev mailing list[1], patch adds the support
> for following new two vector permutation APIs.
>
>
> Declaration:-
> Vector.selectFrom(Vector v1, Vector v2)
>
>
> Semantics:-
> Using in
Hi All,
As per the discussion on panama-dev mailing list[1], patch adds the support for
following new two vector permutation APIs.
Declaration:-
Vector.selectFrom(Vector v1, Vector v2)
Semantics:-
Using index values stored in the lanes of "this" vector, assemble the
values stored in
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