Add missing config

Author: tkrodriguez

compiler/mx.compiler/mx_graal_benchmark.py

@@ -73,6 +73,7 @@
 mx_benchmark.add_java_vm(JvmciJdkVm('server', 'default-serialgc', ['-server', '-XX:-EnableJVMCI', '-XX:+UseSerialGC']), _suite, 2)
 mx_benchmark.add_java_vm(JvmciJdkVm('server', 'default-pargc', ['-server', '-XX:-EnableJVMCI', '-XX:+UseParallelGC']), _suite, 2)
 mx_benchmark.add_java_vm(JvmciJdkVm('server', 'default-zgc', ['-server', '-XX:-EnableJVMCI', '-XX:+UseZGC']), _suite, 2)
+mx_benchmark.add_java_vm(JvmciJdkVm('server', 'default-shenandoah', ['-server', '-XX:-EnableJVMCI', '-XX:+UseShenandoahGC']), _suite, 2)
 mx_benchmark.add_java_vm(JvmciJdkVm('server', 'default-no-tiered-comp', ['-server', '-XX:-EnableJVMCI', '-XX:-TieredCompilation']), _suite, 2)
 mx_benchmark.add_java_vm(JvmciJdkVm('server', 'hosted', ['-server', '-XX:+EnableJVMCI']), _suite, 3)