Currently several jtreg tests like "[Short|Byte]128VectorTests.java" have jvm crash with following log on valhalla:lworld+vector branch:
```
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/mnt/local/code/valhalla/src/hotspot/share/opto/vector.cpp:257), pid=2737779, tid=2737796
# assert(false) failed: should be phi CheckCastPP
#
# JRE version: OpenJDK Runtime Environment (22.0) (fastdebug build 22-internal-git-2f05ce61f)
# Java VM: OpenJDK 64-Bit Server VM (fastdebug 22-internal-git-2f05ce61f, mixed mode, sharing, compressed oops, compressed class ptrs, g1 gc, linux-aarch64)
# Problematic frame:
# V [libjvm.so+0x18c6388] PhaseVector::expand_vbox_node_helper(Node*, Node*, TypeInstPtr const*, TypeVect const*, VectorSet&, VectorBoxNode*)+0x478
#
```