RFR(S): 8246373 AArch64: Refactor register spilling code in ZGC barriers

Stuart Monteith stuart.monteith at arm.com
Thu Jul 16 19:29:51 UTC 2020


Hello,
    There is an opportunity to spill/load fewer registers in ZGC barriers. This is targetting JDK 16 jdk/jdk.

JIRA:
	https://bugs.openjdk.java.net/browse/JDK-8246373
Webrev:
	http://cr.openjdk.java.net/~smonteith/8246373/webrev.0/

Tested with JTReg, SPECjbb2015, and other workloads.

Thanks,
	Stuart


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