git: openjdk/jdk: 8300808: Accelerate Base64 on x86 for AVX2

[Claes Redestad]

Changeset: 33bec207
Author:    Scott Gibbons <sgibbons at openjdk.org>
Committer: Claes Redestad <redestad at openjdk.org>
Date:      2023-02-15 09:26:10 +0000
URL:       https://git.openjdk.org/jdk/commit/33bec207103acd520eb99afb093cfafa44aecfda

8300808: Accelerate Base64 on x86 for AVX2

Reviewed-by: jbhateja, redestad, sviswanathan

! src/hotspot/cpu/x86/stubGenerator_x86_64.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_64.hpp
! src/hotspot/cpu/x86/stubRoutines_x86.cpp
! src/hotspot/cpu/x86/stubRoutines_x86.hpp
! src/hotspot/cpu/x86/vm_version_x86.cpp
! test/micro/org/openjdk/bench/java/util/Base64Decode.java
! test/micro/org/openjdk/bench/java/util/Base64Encode.java