git: openjdk/jdk17u: master: 8271954: C2: assert(false) failed: Bad graph detected in build_loop_late

[Tobias Hartmann]

Changeset: da77acb8
Author:    Tobias Hartmann <thartmann at openjdk.org>
Date:      2021-09-29 06:10:58 +0000
URL:       https://git.openjdk.java.net/jdk17u/commit/da77acb8f2eb2e2841b0c7137878798fae4bfa62

8271954: C2: assert(false) failed: Bad graph detected in build_loop_late

Backport-of: c86e24d4be1e1a26a2a8323ef7ddbab6326bbf3a

! src/hotspot/share/opto/loopPredicate.cpp
! src/hotspot/share/opto/loopnode.hpp
+ test/hotspot/jtreg/compiler/loopopts/TestUnswitchWithSunkNodes.java