git: openjdk/jdk18u: master: 8281811: assert(_base == Tuple) failed: Not a Tuple after JDK-8280799

[Tobias Hartmann]

Changeset: 8f3c8899
Author:    Tobias Hartmann <thartmann at openjdk.org>
Date:      2022-04-06 05:02:14 +0000
URL:       https://git.openjdk.java.net/jdk18u/commit/8f3c8899bd9bf3056f4d5ca1f98025c0ba4d4fcb

8281811: assert(_base == Tuple) failed: Not a Tuple after JDK-8280799

Backport-of: fcce24c5b3cd1dab755fd9b6779af71f4dd78773

! src/hotspot/share/opto/loopnode.cpp
! src/hotspot/share/opto/loopnode.hpp
+ test/hotspot/jtreg/gc/shenandoah/compiler/TestBarrierAboveProj.java