RFR: 8267356: AArch64: Vector API SVE codegen support [v2]
Andrew Haley
aph at openjdk.java.net
Mon Jul 26 08:19:16 UTC 2021
On Mon, 26 Jul 2021 04:56:38 GMT, Ningsheng Jian <njian at openjdk.org> wrote:
>> This is the integration of current SVE work done in panama-vector/vectorIntrinscs, which includes:
>>
>> 1. Code generation for Vector API c2 IR nodes with SVE.
>> 2. Non-max vector size support with SVE, e.g. using *128Vector (and *64Vector) APIs on 256-bit SVE environment could also generate optimized SVE instructions with predicate feature.
>> 3. Some more SVE assemblers (and tests) used by the codegen part.
>>
>> Note: VectorMask<E\> is still represented in vector register, a further improvement to map mask to predicate register is under development at https://github.com/openjdk/panama-vector/tree/vectorIntrinsics+mask
>>
>>
>> Test: tier1-3 with vector api test cases passed on 512-bit SVE hardware with MaxVectorSize=16/32/64.
>
> Ningsheng Jian has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains one commit:
>
> 8267356: AArch64: Vector API SVE codegen support
>
> This is the integration of current SVE work done in
> panama-vector/vectorIntrinscs, which includes:
>
> 1. Code generation for Vector API c2 IR nodes with SVE.
> 2. Non-max vector size support with SVE, e.g. using *128Vector APIs on
> 256-bit SVE environment could also generate optimized SVE
> instructions with predicate feature.
> 3. Some more SVE assemblers (and tests) used by the codegen part.
>
> Note: VectorMask<E> is still represented in vector register, a further
> improvement to map mask to predicate register is under development at
> https://github.com/openjdk/panama-vector/tree/vectorIntrinsics+mask
>
> Test: tier1-3 with vector api test cases passed on 512-bit SVE hardware
> with MaxVectorSize=16/32/64.
src/hotspot/cpu/aarch64/assembler_aarch64.cpp line 73:
> 71: case 8:
> 72: return D;
> 73: default:
Please use an array here.
-------------
PR: https://git.openjdk.java.net/jdk/pull/4122
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