git: openjdk/jdk: master: 8333334: C2: Make result of `Node::dominates` more precise to enhance scalar replacement

[Qizheng Xing]

Changeset: 965dd1ac
Branch: master
Author:    Qizheng Xing <qxing at openjdk.org>
Date:      2024-08-23 09:30:47 +0000
URL:       https://git.openjdk.org/jdk/commit/965dd1acd0ce5b225d85e2c55cc097856e0e9f3c

8333334: C2: Make result of `Node::dominates` more precise to enhance scalar replacement

Reviewed-by: chagedorn, kvn, thartmann

! src/hotspot/share/opto/memnode.cpp
! src/hotspot/share/opto/memnode.hpp
! src/hotspot/share/opto/node.cpp
! src/hotspot/share/opto/node.hpp
+ test/hotspot/jtreg/compiler/c2/irTests/scalarReplacement/ScalarReplacementWithGCBarrierTests.java
! test/micro/org/openjdk/bench/java/util/concurrent/Maps.java