hg: zgc/zgc: 2 new changesets

[nils.eliasson at oracle.com]

Changeset: 7457d813f977
Author:    neliasso
Date:      2018-05-11 10:31 +0200
URL:       http://hg.openjdk.java.net/zgc/zgc/rev/7457d813f977

ZGC: C2: Remove unused code

! src/hotspot/share/opto/type.cpp

Changeset: c8b7bce68c67
Author:    neliasso
Date:      2018-05-11 13:15 +0200
URL:       http://hg.openjdk.java.net/zgc/zgc/rev/c8b7bce68c67

ZGC: C2: Dont split loadbarriers past self refering phi nodes

! src/hotspot/share/opto/loopopts.cpp