hg: zgc/zgc: ZGC: C2: Add MaxVectorSize support in C2 load barrier ad rules

[nils.eliasson at oracle.com]

Changeset: c916a7ccaf55
Author:    neliasso
Date:      2017-11-29 15:52 +0100
URL:       http://hg.openjdk.java.net/zgc/zgc/rev/c916a7ccaf55

ZGC: C2: Add MaxVectorSize support in C2 load barrier ad rules

! src/hotspot/cpu/x86/x86.ad
! src/hotspot/cpu/x86/x86_64.ad
! src/hotspot/share/opto/type.cpp