hg: hsx/hotspot-comp/hotspot: 7081933: Use zeroing elimination optimization for large array

[vladimir.kozlov at oracle.com]

Changeset: a92cdbac8b9e
Author:    kvn
Date:      2011-09-26 10:24 -0700
URL:       http://hg.openjdk.java.net/hsx/hotspot-comp/hotspot/rev/a92cdbac8b9e

7081933: Use zeroing elimination optimization for large array
Summary: Don't zero new typeArray during runtime call if the allocation is followed by arraycopy into it.
Reviewed-by: twisti

! src/cpu/sparc/vm/stubGenerator_sparc.cpp
! src/share/vm/gc_interface/collectedHeap.hpp
! src/share/vm/gc_interface/collectedHeap.inline.hpp
! src/share/vm/memory/oopFactory.cpp
! src/share/vm/memory/oopFactory.hpp
! src/share/vm/oops/typeArrayKlass.cpp
! src/share/vm/oops/typeArrayKlass.hpp
! src/share/vm/opto/library_call.cpp
! src/share/vm/opto/macro.cpp
! src/share/vm/opto/memnode.cpp
! src/share/vm/opto/memnode.hpp
! src/share/vm/opto/runtime.cpp
! src/share/vm/opto/runtime.hpp