hg: jdk10/hs/hotspot: 8179679: Rearrange filters before card scanning

[thomas.schatzl at oracle.com]

Changeset: 8851951f7fa1
Author:    tschatzl
Date:      2017-07-06 12:11 +0200
URL:       http://hg.openjdk.java.net/jdk10/hs/hotspot/rev/8851951f7fa1

8179679: Rearrange filters before card scanning
Summary: Implement micro-optimizations in the card scanning code enabled by JDK-8177044.
Reviewed-by: sjohanss, ehelin

! src/share/vm/gc/g1/g1RemSet.cpp
! src/share/vm/gc/g1/g1RemSet.hpp