RFR (S) 8241743: Shenandoah: refactor and inline ShenandoahHeap::heap()
Aleksey Shipilev
shade at redhat.com
Fri Mar 27 13:38:45 UTC 2020
RFE:
https://bugs.openjdk.java.net/browse/JDK-8241743
ShenandoahHeap::heap() is used on critical performance fastpaths, and should be properly inlined.
Instead of going via Universe::heap(), we can just pull it off our own static field. (ZGC does the
same). heap_no_check() is not needed anymore, because we don't do any additional checks that make
performance worse.
Webrev:
https://cr.openjdk.java.net/~shade/8241743/webrev.01/
Testing: hotspot_gc_shenandoah; Linux x86_64 {slowdebug, fastdebug, release} builds without PCH
--
Thanks,
-Aleksey
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