hg: jdk7/hotspot-gc/hotspot: 7041789: 30% perf regression with c2/arm following 7017732

[jon.masamitsu at oracle.com]

Changeset: 2aa9ddbb9e60
Author:    jmasa
Date:      2011-05-03 10:30 -0700
URL:       http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/2aa9ddbb9e60

7041789: 30% perf regression with c2/arm following 7017732
Summary: Implement a more accurate is_scavengable()
Reviewed-by: stefank, jcoomes, ysr

! src/share/vm/code/nmethod.cpp
! src/share/vm/code/nmethod.hpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
! src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp
! src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.hpp
! src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp
! src/share/vm/gc_interface/collectedHeap.hpp
! src/share/vm/memory/genCollectedHeap.cpp
! src/share/vm/memory/genCollectedHeap.hpp
! src/share/vm/memory/sharedHeap.cpp
! src/share/vm/oops/instanceRefKlass.cpp