Building fastdebug Client VM (without C2) on x86_64 fails with error on JVMCI globals:

=== Output from failing command(s) repeated here ===
* For target support_jmods_java.base.jmod:
# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=/jvmci_globals.cpp:111
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/home/bellsoft/jdk/src/hotspot/share/jvmci/jvmci_globals.cpp:111), pid=19542, tid=19547
# assert(MaxVectorSizechecked) failed: MaxVectorSize flag not checked
#
# JRE version: (12.0) (fastdebug build )
# Java VM: OpenJDK 64-Bit Client VM (fastdebug 12-internal+0-adhoc.bellsoft.jdk, mixed mode, sharing, g1 gc, linux-amd64)
# No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#