C2: assert(found_opaque == res) failed: wrong pattern

java/util/Arrays/Sorting.java crashed with:

# Internal Error (/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S8428/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/1445d165-80b5-4b14-92d8-7aae86fb614c/runs/014b3580-b150-4560-8dbb-4e817bd2c9ad/workspace/open/src/hotspot/share/opto/loopnode.cpp:5488), pid=3005243, tid=3005258
# assert(found_opaque == res) failed: wrong pattern
#
# JRE version: Java(TM) SE Runtime Environment (20.0+27) (fastdebug build 20-ea+27-2213)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 20-ea+27-2213, compiled mode, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
# Problematic frame:
# V [libjvm.so+0x1499d75] CountedLoopNode::is_canonical_loop_entry()+0x1e5

This is after the fix for JDK-8269820, which is a dup for JDK-8284301, which had the same error message.

VM options in one of the crashes:

-Xcomp -XX:+CreateCoredumpOnCrash -ea -esa -XX:CompileThreshold=100 -XX:+UnlockExperimentalVMOptions -server -XX:-TieredCompilation -XX:+DeoptimizeALot