I just pushed JDK-8318446, and [~jbhateja] just pushed a new test with JDK-8329555.

I did not merge and run tests again in the meantime, so now we have a failure in mainline:

~/Documents/jtreg/bin/jtreg -va -s -jdk:/oracle-work/jdk-fork2/build/linux-x64-debug/jdk -javaoptions:"-XX:-TieredCompilation -XX:+AlwaysIncrementalInline" -J-Djavatest.maxOutputSize=10000000 /oracle-work/jdk-fork2/open/test/hotspot/jtreg/compiler/vectorapi/TestBiMorphicMismatchedMemSegment.java

Flags:
-XX:-TieredCompilation -XX:+AlwaysIncrementalInline

#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/oracle-work/jdk-fork2/open/src/hotspot/share/utilities/globalDefinitions.cpp:334), pid=3792327, tid=3792345
# assert((allow_address || t != T_ADDRESS) && t <= T_CONFLICT) failed: unexpected basic type
#
# JRE version: Java(TM) SE Runtime Environment (23.0) (fastdebug build 23-internal-2024-04-24-1048312.emanuel...)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 23-internal-2024-04-24-1048312.emanuel..., mixed mode, tiered, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
# Problematic frame:
# V [libjvm.so+0xd78a7d] type2aelembytes(BasicType, bool)+0x5d
#
# Core dump will be written. Default location: Core dumps may be processed with "/usr/share/apport/apport -p%p -s%s -c%c -d%d -P%P -u%u -g%g -- %E" (or dumping to /oracle-work/jdk-fork2/build/linux-x64-debug/jdk/bin/JTwork/scratch/core.3792327)
#
# An error report file with more information is saved as:
# /oracle-work/jdk-fork2/build/linux-x64-debug/jdk/bin/JTwork/scratch/hs_err_pid3792327.log
#
# Compiler replay data is saved as:
# /oracle-work/jdk-fork2/build/linux-x64-debug/jdk/bin/JTwork/scratch/replay_pid3792327.log
#
# If you would like to submit a bug report, please visit:
# https://bugreport.java.com/bugreport/crash.jsp
#