7151532: DCmd for hotspot native memory tracking
Summary: Implementation of native memory tracking phase 1, which tracks VM native memory usage, and related DCmd
Reviewed-by: acorn, coleenp, fparain

Summary: Cannot delete _buckets and HashtableEntries in shared space (CDS)
Reviewed-by: acorn, kvn, dlong, dcubed, kamg

Summary: Missing cast caused integer overflow
Reviewed-by: rbackman, dholmes

Summary: Use an alternate version of hashing algorithm for symbol string tables and after a certain bucket size to improve performance
Reviewed-by: pbk, kamg, dlong, kvn, fparain

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

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

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

Summary: Removed LOG_G and LOG_K. Moved LOG_M to where it is being used.
Reviewed-by: twisti, johnc

Summary: Before the last thread to leave a JNI critical region was able to schedule a GCLocker Initiated GC, another thread was attempting an allocation and saw that the GCLocker region was no longer active and successfully scheduled a GC. Stall allocating threads until the GCLocker Initiated GC is performed and then retry the allocation.
Reviewed-by: brutisso, huntch

Reviewed-by: kvn, roland

Summary: optimize this code pattern obj.getClass() == A.class.
Reviewed-by: jrose, kvn
Contributed-by: NKrystal Mok <sajia@taobao.com>

Summary: Work around 'gobjcopy' failure on Solaris X64 by adding a temporary tool that removes the SHF_ALLOC flag from "empty" section headers.
Reviewed-by: sspitsyn, acorn

Reviewed-by: dholmes, sla

Reviewed-by: dholmes, kamg

7168280: Eliminate the generic signature index slot from field array for field without generic signature.
Summary: Only allocate the generic signature index slot in the field array for field with generic signature attribute.
Reviewed-by: coleenp, dlong

Summary: bad test for parity of y in pow(x,y) (c1, interpreter)
Reviewed-by: kvn, twisti

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

Summary: null checks in "compressed oops with base" mode may trigger a SIGBUS rather than a SIGSEGV.
Reviewed-by: dsamersoff, dcubed, rbackman, kvn

Summary: Removed the assert in CompactibleFreeListSpace::check_free_list_consistency() since it was too strict. Simplified CompactibleFreeListSpace::set_cms_values() to reducde the need for asserts.
Reviewed-by: jcoomes, stefank

Summary: Work around 'gobjcopy --add-gnu-debuglink' failure by adding a temporary tool that adds the '.gnu_debuglink' section and nothing more.
Reviewed-by: sspitsyn, acorn

Reviewed-by: mgerdin, johnc

Reviewed-by: jwilhelm, johnc, dholmes

Summary: GC cause was not being set by the VM_G1CollectForAllocation VM operation.
Reviewed-by: jmasa, ysr, brutisso