RFR: 8234906: [TESTBUG] TestDivZeroCheckControl fails for client VMs due to Unrecognized VM option LoopUnrollLimit

[christoph.goettschkes at microdoc.com]

Hi,

please review the following small changeset which fixes the test 
test/hotspot/jtreg/compiler/loopopts/TestDivZeroCheckControl.java for 
client VMs.
I added the requirement "vm.compiler2.enabled & !vm.graal.enabled", since 
the original bug is for C2 only. If I understand the bug description well, 
the provided test case works solely because of the provided 
"LoopUnrollLimit" flag, which is only valid for C2.

Bug: https://bugs.openjdk.java.net/browse/JDK-8234906
Webrev: https://cr.openjdk.java.net/~cgo/8234906/webrev.00/

Bug which introduced the issue:
https://bugs.openjdk.java.net/browse/JDK-8229496

Thanks,
Christoph