git: openjdk/jdk: 8310190: C2 SuperWord: AlignVector is broken, generates misaligned packs

[Emanuel Peter]

Changeset: 827c71da
Author:    Emanuel Peter <epeter at openjdk.org>
Date:      2024-01-08 16:10:21 +0000
URL:       https://git.openjdk.org/jdk/commit/827c71dac9a5732f70bc7341743bce314cad302f

8310190: C2 SuperWord: AlignVector is broken, generates misaligned packs

Co-authored-by: Christian Hagedorn <chagedorn at openjdk.org>
Reviewed-by: kvn, chagedorn

! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/x86/x86.ad
! src/hotspot/share/adlc/formssel.cpp
! src/hotspot/share/opto/c2_globals.hpp
! src/hotspot/share/opto/c2compiler.cpp
! src/hotspot/share/opto/chaitin.cpp
! src/hotspot/share/opto/classes.hpp
! src/hotspot/share/opto/compile.cpp
! src/hotspot/share/opto/machnode.cpp
! src/hotspot/share/opto/node.hpp
! src/hotspot/share/opto/superword.cpp
! src/hotspot/share/opto/superword.hpp
! src/hotspot/share/opto/vectorization.cpp
! src/hotspot/share/opto/vectorization.hpp
! src/hotspot/share/opto/vectornode.hpp
! test/hotspot/jtreg/compiler/c2/irTests/TestVectorizationMismatchedAccess.java
! test/hotspot/jtreg/compiler/lib/ir_framework/TestFramework.java
+ test/hotspot/jtreg/compiler/loopopts/superword/TestAlignVector.java
+ test/hotspot/jtreg/compiler/loopopts/superword/TestAlignVectorFuzzer.java
! test/hotspot/jtreg/compiler/loopopts/superword/TestDependencyOffsets.java
! test/hotspot/jtreg/compiler/loopopts/superword/TestMovingLoadBeforeStore.java
! test/hotspot/jtreg/compiler/loopopts/superword/TestMulAddS2I.java
! test/hotspot/jtreg/compiler/vectorization/TestBufferVectorization.java