git: openjdk/jdk: 8283307: Vectorize unsigned shift right on signed subword types

[Pengfei Li]

Changeset: 24fe8ad7
Author:    Fei Gao <fgao at openjdk.org>
Committer: Pengfei Li <pli at openjdk.org>
Date:      2022-06-06 02:02:10 +0000
URL:       https://git.openjdk.java.net/jdk/commit/24fe8ad74cc481d18bed6896ca54a8d91c651d4a

8283307: Vectorize unsigned shift right on signed subword types

Reviewed-by: jiefu, pli, sviswanathan, kvn

! src/hotspot/share/opto/superword.cpp
! src/hotspot/share/opto/vectornode.cpp
! src/hotspot/share/opto/vectornode.hpp
+ test/hotspot/jtreg/compiler/c2/irTests/TestVectorizeURShiftSubword.java
! test/hotspot/jtreg/compiler/lib/ir_framework/IRNode.java
! test/hotspot/jtreg/compiler/vectorization/runner/ArrayShiftOpTest.java
! test/hotspot/jtreg/compiler/vectorization/runner/BasicByteOpTest.java
! test/hotspot/jtreg/compiler/vectorization/runner/BasicShortOpTest.java
! test/micro/org/openjdk/bench/vm/compiler/VectorShiftRight.java