Generated test crashed with
#
# A fatal error has been detected by the Java Runtime Environment:
#
#  Internal Error (open/src/hotspot/share/opto/loopopts.cpp:1730), pid=7834, tid=7845
#  assert(mode == ControlAroundStripMined && (use == sfpt || !use->is_reachable_from_root())) failed: missed a node
#
# JRE version: Java(TM) SE Runtime Environment (14.0+23) (fastdebug build 14-ea+23-1048)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 14-ea+23-1048, compiled mode, sharing, compressed oops, g1 gc, linux-amd64)
# Problematic frame:
# V  [libjvm.so+0x1183add]  PhaseIdealLoop::clone_loop_handle_data_uses(Node*, Node_List&, IdealLoopTree*, IdealLoopTree*, Node_List*&, Node_List*&, Node_List*&, Node_List&, unsigned int, PhaseIdealLoop::CloneLoopMode)+0x63d
#
# Core dump will be written. Default location: Core dumps may be processed with "/usr/libexec/abrt-hook-ccpp %s %c %p %u %g %t e %P %I %h" (or dumping to /tmp/fuzzer.tmp.FJoZrrxB6P/core.7834)
#
# If you would like to submit a bug report, please visit:
#   https://bugreport.java.com/bugreport/crash.jsp
#

---------------  S U M M A R Y ------------

Command Line: -Xmx1G -Xcomp -Xbatch -XX:-TieredCompilation -XX:CompileOnly=Test Test

Host:  Intel(R) Xeon(R) CPU E5-2690 0 @ 2.90GHz, 4 cores, 14G, Oracle Linux Server release 7.5
Time: Sun Nov 17 18:03:07 2019 UTC elapsed time: 0 seconds (0d 0h 0m 0s)

---------------  T H R E A D  ---------------

Current thread (0x00007fcd6c252000):  JavaThread "C2 CompilerThread0" daemon [_thread_in_native, id=7845, stack(0x00007fcd51279000,0x00007fcd5137a000)]


Current CompileTask:
C2:    215    4    b        Test::vMeth (213 bytes)

Stack: [0x00007fcd51279000,0x00007fcd5137a000],  sp=0x00007fcd51373d50,  free space=1003k
Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.so+0x1183add]  PhaseIdealLoop::clone_loop_handle_data_uses(Node*, Node_List&, IdealLoopTree*, IdealLoopTree*, Node_List*&, Node_List*&, Node_List*&, Node_List&, unsigned int, PhaseIdealLoop::CloneLoopMode)+0x63d
V  [libjvm.so+0x118627d]  PhaseIdealLoop::clone_loop(IdealLoopTree*, Node_List&, int, PhaseIdealLoop::CloneLoopMode, Node*)+0xefd
V  [libjvm.so+0x1158c5e]  PhaseIdealLoop::create_slow_version_of_loop(IdealLoopTree*, Node_List&, int, PhaseIdealLoop::CloneLoopMode)+0xcae
V  [libjvm.so+0x115b70c]  PhaseIdealLoop::do_unswitching(IdealLoopTree*, Node_List&)+0xfc
V  [libjvm.so+0x1152d4a]  IdealLoopTree::iteration_split_impl(PhaseIdealLoop*, Node_List&)+0x3ca
V  [libjvm.so+0x11542b1]  IdealLoopTree::iteration_split(PhaseIdealLoop*, Node_List&)+0x111
V  [libjvm.so+0x11541c6]  IdealLoopTree::iteration_split(PhaseIdealLoop*, Node_List&)+0x26
V  [libjvm.so+0x11541c6]  IdealLoopTree::iteration_split(PhaseIdealLoop*, Node_List&)+0x26
V  [libjvm.so+0x1178cd7]  PhaseIdealLoop::build_and_optimize(LoopOptsMode)+0xc97
V  [libjvm.so+0x99bb4a]  PhaseIdealLoop::optimize(PhaseIterGVN&, LoopOptsMode)+0x2ea
V  [libjvm.so+0x998603]  Compile::Optimize()+0x353
V  [libjvm.so+0x99a354]  Compile::Compile(ciEnv*, C2Compiler*, ciMethod*, int, bool, bool, bool, DirectiveSet*)+0x10a4
V  [libjvm.so+0x8123f0]  C2Compiler::compile_method(ciEnv*, ciMethod*, int, DirectiveSet*)+0x110
V  [libjvm.so+0x9a6dcc]  CompileBroker::invoke_compiler_on_method(CompileTask*)+0x2cc
V  [libjvm.so+0x9a7d78]  CompileBroker::compiler_thread_loop()+0x468
V  [libjvm.so+0x16625d6]  JavaThread::thread_main_inner()+0x226
V  [libjvm.so+0x1667cb6]  Thread::call_run()+0xf6
V  [libjvm.so+0x139a33e]  thread_native_entry(Thread*)+0x10e