git: openjdk/jdk: 8269820: C2 PhaseIdealLoop::do_unroll get wrong opaque node

[Roland Westrelin]

Changeset: 86270e30
Author:    Roland Westrelin <roland at openjdk.org>
Date:      2022-12-07 14:16:50 +0000
URL:       https://git.openjdk.org/jdk/commit/86270e3068d3b2e80710227ae2dc79719df35788

8269820: C2 PhaseIdealLoop::do_unroll get wrong opaque node

Reviewed-by: kvn, thartmann, chagedorn

! src/hotspot/share/opto/cfgnode.cpp
! src/hotspot/share/opto/classes.hpp
! src/hotspot/share/opto/loopTransform.cpp
! src/hotspot/share/opto/loopnode.cpp
! src/hotspot/share/opto/opaquenode.hpp
! src/hotspot/share/opto/split_if.cpp
! src/hotspot/share/opto/subnode.cpp
+ test/hotspot/jtreg/compiler/loopopts/TestCanonicalLoopEntryOpaqueOrder.java