Integrated: 8304258: x86: Improve the code generation of VectorRearrange with int and float

Quan Anh Mai qamai at openjdk.org
Sat Mar 25 05:33:48 UTC 2023


On Wed, 15 Mar 2023 12:55:52 GMT, Quan Anh Mai <qamai at openjdk.org> wrote:

> Hi,
> 
> This small patch changes the code generation of VectorRearrangeNode with respect to int and float elements. With not-larger-than-128-bit vectors, we can use `vpermilps` instead of promoting to operating on the extended 256-bit vector. This also helps the code generation of AVX1 to not rely on the sse version.
> 
> Please take a look and leave some reviews.
> Thanks a lot.

This pull request has now been integrated.

Changeset: 38e17148
Author:    Quan Anh Mai <qamai at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/38e17148faef7799515478bd834ed2fa1a5153de
Stats:     46 lines in 5 files changed: 34 ins; 2 del; 10 mod

8304258: x86: Improve the code generation of VectorRearrange with int and float

Reviewed-by: kvn, jbhateja, sviswanathan

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PR: https://git.openjdk.org/jdk/pull/13042


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