Summary: Thread stack's base address can be NULL if it is not started or exited before recording the base
Reviewed-by: kvn, fparain

7181995: NMT ON: NMT assertion failure assert(cur_vm->is_uncommit_record() || cur_vm->is_deallocation_record
Summary: Fixed virtual memory records merge and promotion logic, should be based on sequence number vs. base address order
Reviewed-by: coleenp, acorn

Summary: There was a rogue os::breakpoint() call in log_dependency left over from the jsr292 merge.  Also changed verify_oop() calls for metadata to verify_{method,klass}_ptr.
Reviewed-by: kvn, twisti

Summary: C1 needs knowledge of T_METADATA at the LIR level.
Reviewed-by: kvn, coleenp

Summary: Fix the iteration over the system classes and report the correct reference kind.
Reviewed-by: coleenp, rbackman

Reviewed-by: jrose, coleenp, jmasa, kvn

7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
Summary: Don't allocate huge class metaspace size by default on x64
Reviewed-by: stefank, jmasa, kvn

Summary: Simple renaming to be consistent with instanceKlass->InstanceKlass renaming
Reviewed-by: stefank, jmasa

Reviewed-by: jcoomes, brutisso

7195867: NPG: SAJDI tests fail with sun.jvm.hotspot.types.WrongTypeException: No suitable match for type
Summary: Need to restore the vtable in metadata when we restore the type from the shared archive.
Reviewed-by: acorn, jcoomes, jmasa, jrose

Summary: Don't decompress the klass pointer in the G1 pre-barrier code when !UseCompressedKlassPointers
Reviewed-by: coleenp, brutisso

Reviewed-by: coleenp, jcoomes

Reviewed-by: kvn, coleenp

Summary: xmeet when both inputs are MetadataPtr.
Reviewed-by: kvn

Summary: Remove incorrect cast
Reviewed-by: brutisso, coleenp

Summary: If the commit fails, the size isn't set so the assert fails.
Reviewed-by: kamg

Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: Njmasa &lt;jon.masamitsu@oracle.com&gt;, stefank &lt;stefan.karlsson@oracle.com&gt;, mgerdin &lt;mikael.gerdin@oracle.com&gt;, never <tom.rodriguez@oracle.com>

Summary: Added capability to load support classes for other cpus
Reviewed-by: coleenp, bobv, sla
Contributed-by: NBill Pittore <bill.pittore@oracle.com>

Summary: Do not remove safepoints during peeling optimization.
Reviewed-by: twisti

7192406: JSR 292: C2 needs exact return type information for invokedynamic and invokehandle call sites
Reviewed-by: kvn

Summary: Add the flags G1EvacuationFailureALot flag (and supporting flags) to force trigger evacuation failures. The support flags control how often to trigger an evacuation failure and during which types of evacuation pause. This functionality is analogous to that of PromotionFailureALot for the other collectors.
Reviewed-by: brutisso

Reviewed-by: kvn, dholmes, coleenp
Contributed-by: NTao Mao <tao.mao@oracle.com>

Summary: Add split_arena to allocate temporary arrays in PhaseChaitin::Split() and free them on method's exit.
Reviewed-by: twisti

Summary: Change pair check to vector check in RA bias coloring code.
Reviewed-by: jrose, twisti

7178363: G1: Remove the serial code for PrintGCDetails and make it a special case of the parallel code
Summary: Also reviewed by vitalyd@gmail.com. Introduced the WorkerDataArray class. Fixed some minor logging bugs.
Reviewed-by: johnc, mgerdin

Summary: Also reviewed by: vitalyd@gmail.com. Make G1DefaultMinNewGenPercent, G1DefaultMaxNewGenPercent, G1OldCSetRegionLiveThresholdPercent and G1OldCSetRegionThresholdPercent experimental flags
Reviewed-by: ysr, johnc, jmasa

Summary: Fixed Pack node generation. Not vectorize shift instructions if count is not the same for all shifts and if count is vector.
Reviewed-by: twisti

Summary: C1 value numbering hits unloaded klass.
Reviewed-by: kvn, twisti

Summary: Shifts with loop variant counts "a[i]=1<<b[i];" should not be vectorized since hw does not support it.
Reviewed-by: twisti

Summary: Correct the result value of G1CollectedHeap::pending_card_num(). Change the code that calculates the GC efficiency of a non-young heap region to use historical data from mixed GCs and the actual number of live bytes when predicting how long it would take to collect the region. Changes were also reviewed by Thomas Schatzl.
Reviewed-by: azeemj, brutisso

Reviewed-by: kvn, roland, jrose

Summary: G1 does not appear to be immune to the issue described in CR 6948537 and increasing the size of old-generation PLABs appears to increase the liklihood of seeing the issue. Extend the fix for 6948537 to G1's BlockOffsetTable.
Reviewed-by: brutisso, jmasa

Summary: In C2 add software membar after load from Reference.referent field to prevent commoning of loads across safepoint since GC can change its value. In C1 always generate Reference.get() intrinsic.
Reviewed-by: roland, twisti, dholmes, johnc

Summary: Added asm encoding and mach nodes for vector arithmetic instructions on x86.
Reviewed-by: roland

7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
Summary: Updated all related variables and methods to use NOT_PRODUCT macros
Reviewed-by: coleenp, acorn, kvn

Reviewed-by: kvn, jrose

Summary: Provide additional detail in VerifyError messages
Reviewed-by: sspitsyn, acorn

Summary: Employ PLABStats instances to record information about survivor and old PLABs, and use the recorded stats to adjust the sizes of survivor and old PLABS.
Reviewed-by: johnc, ysr
Contributed-by: NBrandon Mitchell <brandon@twitter.com>

Reviewed-by: kvn, jrose

7187429: NMT ON: Merge failure should cause NMT to shutdown
Summary: Fixed NMT assertion failures
Reviewed-by: acorn, kvn