hg: hsx/hotspot-gc/hotspot: 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally

[tony.printezis at oracle.com]

Changeset: f44782f04dd4
Author:    tonyp
Date:      2011-08-12 11:31 -0400
URL:       http://hg.openjdk.java.net/hsx/hotspot-gc/hotspot/rev/f44782f04dd4

7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
Summary: Refactor the allocation code during GC to use the G1AllocRegion abstraction. Use separate subclasses of G1AllocRegion for survivor and old regions. Avoid BOT updates and dirty survivor cards incrementally for the former.
Reviewed-by: brutisso, johnc, ysr

! src/share/vm/gc_implementation/g1/g1AllocRegion.cpp
! src/share/vm/gc_implementation/g1/g1AllocRegion.hpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp
! src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp
! src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp
! src/share/vm/gc_implementation/g1/heapRegion.cpp
! src/share/vm/gc_implementation/g1/heapRegion.hpp
! src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp