hg: shenandoah/jdk9/hotspot: (x86) Fix up and refactor store checks

[ashipile at redhat.com]

Changeset: 7f29d5e4e443
Author:    shade
Date:      2017-04-26 11:02 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/7f29d5e4e443

(x86) Fix up and refactor store checks

! src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
! src/cpu/x86/vm/macroAssembler_x86.cpp
! src/cpu/x86/vm/macroAssembler_x86.hpp
! src/cpu/x86/vm/x86_64.ad
! src/share/vm/gc/shenandoah/shenandoahHeap.hpp
! src/share/vm/gc/shenandoah/shenandoahHeap.inline.hpp