On AAarch64

# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=/matcher.cpp:1605
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/home/shihui/jdk9-hs-comp/hotspot/src/share/vm/opto/matcher.cpp:1605), pid=8501, tid=8746
# assert(false) failed: bad AD file
#

1605 assert( false, "bad AD file" );
(gdb) p ((AryEqNode*)n)->encoding()
$1 = StrIntrinsicNode::LL
(gdb)

Only StrIntrinsicNode::UU AryEq is supported on aarch64 while StrIntrinsicNode::LL AryEq is not yet. Supposed fix is adding StrIntrinsicNode::LL AryEq support similar with X86 platform.