hg: jdk/jdk: 8239549: AArch64: Backend support for MulAddVS2VI node

[ningsheng.jian at arm.com]

Changeset: ff1f4b5e0c9a
Author:    pli
Date:      2020-02-26 09:33 +0800
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/ff1f4b5e0c9a

8239549: AArch64: Backend support for MulAddVS2VI node
Reviewed-by: aph

! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/aarch64/assembler_aarch64.hpp
! src/hotspot/cpu/aarch64/vm_version_aarch64.cpp
! test/hotspot/jtreg/compiler/loopopts/superword/Vec_MulAddS2I.java