SEGV in PhaseChaitin::post_allocate_copy_removal() with AOT/JVMCI

#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x0000000111e1afda, pid=14070, tid=41475
#
# JRE version: Java(TM) SE Runtime Environment (16.0+20) (fastdebug build 16-ea+20-1079)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 16-ea+20-1079, mixed mode, aot, sharing, tiered, jvmci, compressed oops, g1 gc, bsd-amd64)
# Problematic frame:
# V [libjvm.dylib+0xe1afda] PhaseChaitin::post_allocate_copy_removal()+0xe5a
#

Test:
compiler/aot/cli/MultipleAOTLibraryTest.java