RFR: Bulk backport to sh/jdk8u

[Andrew Haley]

5111   // During evacuation and evacuation only, we can have the stores of cset-values
5112   // to non-cset destinations. Everything else is covered by storeval barriers.
5113   mov(tmp1, ShenandoahHeap::evacuation_in_progress_addr());
5114   ldrw(tmp1, Address(tmp1));
5115   cbnzw(tmp1, done);

Looks reasonable, but in jdk8 is evacuation_in_progress not a field in the
thread?

-- 
Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
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