git: openjdk/jdk: 8300258: C2: vectorization fails on simple ByteBuffer loop

[Roland Westrelin]

Changeset: dc523a58
Author:    Roland Westrelin <roland at openjdk.org>
Date:      2023-03-09 08:00:24 +0000
URL:       https://git.openjdk.org/jdk/commit/dc523a58a6ece87e5865bea0342415a969172c77

8300258: C2: vectorization fails on simple ByteBuffer loop

Co-authored-by: Emanuel Peter <epeter at openjdk.org>
Reviewed-by: epeter, kvn

! src/hotspot/share/opto/superword.cpp
! src/hotspot/share/opto/superword.hpp
+ test/hotspot/jtreg/compiler/c2/irTests/TestVectorizationMismatchedAccess.java
+ test/hotspot/jtreg/compiler/vectorization/TestOverlappingMismatchedAccesses.java