git: openjdk/jdk: master: 8359419: AArch64: Relax min vector length to 32-bit for short vectors

[Xiaohong Gong]

Changeset: ac141c2f
Branch: master
Author:    Xiaohong Gong <xgong at openjdk.org>
Date:      2025-07-22 09:06:02 +0000
URL:       https://git.openjdk.org/jdk/commit/ac141c2fa1d818858e7a12a50837bb282282ecac

8359419: AArch64: Relax min vector length to 32-bit for short vectors

Reviewed-by: aph, fgao, bkilambi, dlunden

! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/aarch64/aarch64_vector.ad
! src/hotspot/cpu/aarch64/aarch64_vector_ad.m4
! src/hotspot/cpu/aarch64/c2_MacroAssembler_aarch64.cpp
! test/hotspot/jtreg/compiler/loopopts/superword/TestDependencyOffsets.java
! test/hotspot/jtreg/compiler/vectorapi/reshape/utils/TestCastMethods.java
! test/hotspot/jtreg/compiler/vectorization/TestFloatConversionsVector.java
! test/hotspot/jtreg/compiler/vectorization/runner/ArrayTypeConvertTest.java
! test/micro/org/openjdk/bench/jdk/incubator/vector/VectorFPtoIntCastOperations.java
+ test/micro/org/openjdk/bench/vm/compiler/VectorTwoShorts.java