RFR(XS): one more missing UseShenandoahGC in 8u

[Aleksey Shipilev]

On 09/25/2017 11:33 AM, Roland Westrelin wrote:
> http://cr.openjdk.java.net/~roland/shenandoah/8u_useshenandoahgc2/webrev.00/

This looks good.

Upstream has only s->is_Load() part of condition [1], and that's what we get with UseShenandoahGC
after this patch.

Thanks,
-Aleksey

[1]
https://builds.shipilev.net/patch-openjdk-shenandoah-jdk8/2017-09-22-v39-vs-20d83f8419c4/src/share/vm/opto/loopnode.cpp.sdiff.html