git: openjdk/jdk: 8307795: AArch64: Optimize VectorMask.truecount() on Neon

[Eric Liu]

Changeset: f600d036
Author:    changpeng1997 <Chang.Peng at arm.com>
Committer: Eric Liu <eliu at openjdk.org>
Date:      2023-05-30 12:45:33 +0000
URL:       https://git.openjdk.org/jdk/commit/f600d0369a1f9ac78e62a328be4bbb598ffef62b

8307795: AArch64: Optimize VectorMask.truecount() on Neon

Reviewed-by: aph, eliu

! src/hotspot/cpu/aarch64/aarch64_vector.ad
! src/hotspot/cpu/aarch64/aarch64_vector_ad.m4
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java
+ test/hotspot/jtreg/compiler/vectorapi/TestVectorMaskTrueCount.java
+ test/micro/org/openjdk/bench/jdk/incubator/vector/StoreMaskTrueCount.java