RFR: 2018-03-19, Bulk backports to sh/jdk9

[Roman Kennke]

Am 19.03.2018 um 20:36 schrieb Aleksey Shipilev:
> http://cr.openjdk.java.net/~shade/shenandoah/backports/jdk9-20180319/webrev.01/
> 
> This backports all recent work to sh/jdk9:
> 
> 5789a22b66bd: [backport] Fix || and && chaining warnings in memnode.cpp
> 79d0e462ff4a: [backport] Missing OOMScope in ShenandoahFixRootsTask
> a248f5651744: [backport] fix for alias analysis with ShenandoahBarriersForConst
> dcc1ef08dc0e: [backport] FinalEvac pause to turn off evacuation
> 4366aab742d0: [backport] Little cleanup
> 7edfd55938a2: [backport] Tax-and-Spend allocation pacing
> 06ccceb9e78c: [backport] Rewire control loop to avoid double cleanup work
> a295f6a1aa2f: [backport] Excessive asserts in marked_object_iterate
> 1c7331519023: [backport] Added missing header file for non-PCH build
> 685f5911964e: [backport] Remove unnecessary write-barrier
> a1665e6feb5d: [backport] Provide non-taxable allocation slack at the beginning of the cycle
> 
> Testing: hotspot_gc_shenandoah {fastdebug|release}
> 
> Thanks,
> -Aleksey
> 

Go!