In my local test, this case failed on linux/x86_64 and linux/aarch64.

the snippet of error log

STDOUT:
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/tmp/jdk-src/src/hotspot/share/opto/node.hpp:425), pid=103177, tid=103342
# assert(_outcnt==1) failed: not unique
#
# JRE version: OpenJDK Runtime Environment (27.0) (fastdebug build 27-internal-git-a6462d641cb)
# Java VM: OpenJDK 64-Bit Server VM (fastdebug 27-internal-git-a6462d641cb, compiled mode, sharing, tiered, compressed oops, compressed class ptrs, shenandoah gc, linux-aarch64)
# Problematic frame:
# V [libjvm.so+0x17b98a0] ShenandoahBarrierSetC2::eliminate_gc_barrier(PhaseMacroExpand*, Node*) const+0x320
#
# Core dump will be written. Default location: Determined by the following: "/usr/share/apport/apport -p%p -s%s -c%c -d%d -P%P -u%u -g%g -- %E" (alternatively, falling back to /tmp/jtwork_rerun/hotspot/scratch/core.103177)
#
# An error report file with more information is saved as:
# /tmp/jtwork_rerun/hotspot/scratch/hs_err_pid103177.log
#
# Compiler replay data is saved as:
# /tmp/jtwork_rerun/hotspot/scratch/replay_pid103177.log
#
# If you would like to submit a bug report, please visit:
# https://bugreport.java.com/bugreport/crash.jsp
#