git: openjdk/jdk: 8300257: C2: vectorization fails on some simple Memory Segment loops

[Roland Westrelin]

Changeset: 6b2a86a6
Author:    Roland Westrelin <roland at openjdk.org>
Date:      2023-04-07 12:51:44 +0000
URL:       https://git.openjdk.org/jdk/commit/6b2a86a65ef530002aea35ded45d75e04c223802

8300257: C2: vectorization fails on some simple Memory Segment loops

Reviewed-by: kvn, thartmann

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