hg: zgc/zgc: 2 new changesets

[nils.eliasson at oracle.com]

Changeset: a7d1e0343084
Author:    neliasso
Date:      2018-06-04 17:18 +0200
URL:       http://hg.openjdk.java.net/zgc/zgc/rev/a7d1e0343084

ZGC: C2: Relax assert in expand_loadbarrier_node

! src/hotspot/share/gc/z/c2/zBarrierSetC2.cpp

Changeset: ce9a9c3384bf
Author:    neliasso
Date:      2018-06-04 17:36 +0200
URL:       http://hg.openjdk.java.net/zgc/zgc/rev/ce9a9c3384bf

ZGC: C2: Remove dead code

! src/hotspot/share/gc/z/c2/zBarrierSetC2.cpp