Reviewed-by: kvn

Summary: replace frequent C2 optimizer code patterns with new methods calls
Reviewed-by: kvn, twisti
Contributed-by: vladimir.x.ivanov@oracle.com

Reviewed-by: kvn, twisti
Contributed-by: NKrystal Mok <sajia@taobao.com>

Summary: keep intermediate node alive till the end of the graph construction using dummy hook node trick
Reviewed-by: kvn, twisti
Contributed-by: vladimir.x.ivanov@oracle.com

Summary: increase precision on x86 for the steps of the computation of exp and pow.
Reviewed-by: kvn

Reviewed-by: kvn

Summary: Add missing check for EncodeP node in MemNode::Ideal_common_DU_postCCP() method.
Reviewed-by: twisti

Summary: Add -fpch-deps flag to gcc builds
Reviewed-by: kamg, coleenp
Contributed-by: volker.simonis@gmail.com

Reviewed-by: dholmes, coleenp
Contributed-by: NChris Dennis <cdennis@terracottatech.com>

Reviewed-by: kvn

Summary: Eliminate constMethod's _method backpointer to methodOop, and move the _constant field from methodOop to constMethod.
Reviewed-by: roland, bdelsart, kamg

Summary: Recognize Windows 8 and Windows Server 2012
Reviewed-by: sla, kvn, azeemj

Reviewed-by: acorn, kamg, sspitsyn, dholmes

Summary: Class.cast which calls Class.isInstance is heavily used by the new JSR 292 implementation
Reviewed-by: roland
Contributed-by: NKrystal Mok <rednaxelafx@gmail.com>

Summary: Fixed raw pointer being used after potential safepoint/GC
Reviewed-by: acorn, fparain, dholmes

Summary: The scope of TraceMemoryManagerStats in G1CollectedHeap need to cover the call to G1MonitoringSupport::update_sizes()
Reviewed-by: johnc, jmasa

Reviewed-by: azeemj, jmasa

Summary: Add "using" keyword to import base class functions from FreeList<T> to fix template name lookup in gcc 4.7
Reviewed-by: brutisso, iveresov

Reviewed-by: jcoomes

Reviewed-by: jcoomes

Summary: Run SPECjbb in headless mode and enable SPECjbb runs on OSX
Reviewed-by: dcubed, dholmes

Summary: Simplify code, remove unused code, remove ExitAfterGCNum
Reviewed-by: huntch, johnc

Reviewed-by: twisti
Contributed-by: NKrystal Mok <sajia@taobao.com>

Summary: Place HandleMarks in the code that allocates handles for the pending list lock so that the handles are freed and multiple, unsuccessful, attempts to schedule a GC do not cause an OOM.
Reviewed-by: brutisso