git: openjdk/jdk21u: master: 8316679: C2 SuperWord: wrong result, load should not be moved before store if not comparable

[Aleksey Shipilev]

Changeset: 90088898
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2023-11-09 07:28:09 +0000
URL:       https://git.openjdk.org/jdk21u/commit/90088898d4318737c74feb75f078aeee4e7e4bd4

8316679: C2 SuperWord: wrong result, load should not be moved before store if not comparable

Reviewed-by: epeter, phh, thartmann
Backport-of: 48f1a925e528cc9f8cd6c727129918e0e49b3429

! src/hotspot/share/opto/superword.cpp
+ test/hotspot/jtreg/compiler/loopopts/superword/TestMovingLoadBeforeStore.java