[aarch64-port-dev ] RFR(S): 8204606 - [Aarch64] SIGSEGVs caused by C1 because of improper register usage

[Stuart Monteith]

Hello,

Here is Andrew's patch to correct a poor choice of registers in JDK-8201593.

http://cr.openjdk.java.net/~smonteith/8204606/webrev/

CR:

https://bugs.openjdk.java.net/browse/JDK-8204606

Retested with C1 on tier1 tests.

Thanks,
   Stuart