[aarch64-port-dev ] RFR: JDK-8203041 : AArch64: fix overflow in immediate cmp/cmn instruction

[Joshua Zhu]

Hi,



JVM crashed with "-XX:SoftwarePrefetchHintDistance=32760" option.

This causes overflow in immediate operand for jtreg TestOptionsWithRanges.

See JBS for the backtrace.



Bug: https://bugs.openjdk.java.net/browse/JDK-8203041

Webrev: http://cr.openjdk.java.net/~zyao/8203041/



Please help to review this fix.



Best Regards,

Joshua