Summary: Refactor the allocation code during GC to use the G1AllocRegion abstraction. Use separate subclasses of G1AllocRegion for survivor and old regions. Avoid BOT updates and dirty survivor cards incrementally for the former.
Reviewed-by: brutisso, johnc, ysr

Summary: Handlize MemoryUsage klass oop in createGCInfo routine
Reviewed-by: tonyp, fparain, ysr, jcoomes

Summary: Add a wrapper for sched_getcpu() for systems where libc lacks it
Reviewed-by: ysr
Contributed-by: NAndrew John Hughes <ahughes@redhat.com>

Summary: Use mmap() instead of madvise(MADV_DONTNEED) to uncommit pages
Reviewed-by: ysr

Summary: Align the reserved size of the heap and perm to the heap region size to get a preferred heap base that is aligned to the region size, and call the correct heap reservation constructor. Also add a check in the heap reservation code that the reserved space starts at the requested address (if any).
Reviewed-by: kvn, ysr

Summary: Avoid overcounting when CMS has concurrent mode failure.
Reviewed-by: ysr
Contributed-by: rednaxelafx@gmail.com

Summary: In root processing, move the scanning of the reference processor's discovered lists to before RSet updating and scanning. When scanning the reference processor's discovered lists, use a buffering closure so that the time spent copying any reference object is correctly attributed. Also removed a couple of unused and irrelevant timers.
Reviewed-by: ysr, jmasa

Summary: Update the OOME stacktrace to contain Throwable.UNASSIGNED_STACK when the backtrace is filled in
Reviewed-by: mchung, phh

Summary: check for single stepping when dispatching invokes from method handles
Reviewed-by: coleenp, twisti, kvn, dsamersoff

Reviewed-by: dholmes, never, jwilhelm, kvn

Summary: Pass arguments to runtime via java array for arrays with > 5 dimensions
Reviewed-by: never, kvn, jrose, pbk

Summary: Use new VIS3 mov instructions on T4 for move data between general and float registers.
Reviewed-by: never, twisti

Reviewed-by: dholmes, never, jwilhelm, kvn

Summary: do explicit lookup emulating old LD_LIBRARY_PATH search
Reviewed-by: kvn, jrose

Reviewed-by: dholmes, never, jwilhelm, kvn

Reviewed-by: dholmes, never, jwilhelm, kvn

Reviewed-by: dholmes, never, jwilhelm, kvn

Reviewed-by: dholmes, never, jwilhelm, kvn

Reviewed-by: dholmes, never, jwilhelm, kvn

Reviewed-by: kvn

Reviewed-by: twisti, iveresov

Summary: Recompile the enclosing methods without inlining of the method that has OSRed to level 4 or recompile the enclosing method at level 4.
Reviewed-by: kvn, never

Summary: Take into account current state of profiling before believing that existing higher level versions are valid
Reviewed-by: kvn, never

Summary: Call collect_stack_roots() before collect_simple_roots() as an optimization.
Reviewed-by: ysr, dsamersoff, dcubed
Contributed-by: ashok.srinivasa.murthy@oracle.com

Summary: cast constant array ptrs to bottom
Reviewed-by: never

Summary: take into account memory dependencies when clonning nodes in clone_up_backedge_goo().
Reviewed-by: never

Summary: correct Icache::line_size for x64 and add verification code into vm_version_x86.
Reviewed-by: never, phh

Summary: parseClassFile() incorrectly uses nonstatic_oop_map_size() method instead of nonstatic_oop_map_count().
Reviewed-by: never
Contributed-by: NKrystal Mok <rednaxelafx@gmail.com>

Summary: Also reviewed by mikael.gerdin@oracle.com; stdlib:qsort() does byte-by-byte swapping on Windows. This leads to pointer shearing. Fix is to implement a quicksort that does full pointer updates.
Reviewed-by: never, coleenp, ysr

Summary: Extend and make more consistent the output from the G1PrintHeapRegions flag.
Reviewed-by: johnc, jmasa

Summary: VM_HeapWalkOperation::doit() should only reset mark bits when necessary.
Reviewed-by: dsamersoff, ysr, dholmes, dcubed
Contributed-by: ashok.srinivasa.murthy@oracle.com

Reviewed-by: never

Summary: don't skip receiver when GC'ing compiled invokedynamic callsites
Reviewed-by: twisti, kvn, jrose

Summary: Remove two unnecessary iterations over the collection set which are supposed to prepare the RSet's of the CSet regions for parallel iterations (we'll make sure this is done incrementally). I'll piggyback on this CR the removal of the G1_REM_SET_LOGGING code.
Reviewed-by: brutisso, johnc

Summary: code was using andq reg, imm instead of addq addr, imm
Reviewed-by: kvn, jrose, twisti

Summary: Only cosmetic changes to make the concurrentMark.* more consistent, code-style-wise, with the rest of the codebase.
Reviewed-by: johnc, ysr

Summary: Keep 'ne' test in Counted loop when we can't guarantee during compilation that init < limit.
Reviewed-by: never

6916968: CMS: freeList.cpp:304 assert(_allocation_stats.prevSweep() + ..., "Conservation Principle")
Summary: Fix assert and adjust demand volume computation by adding missing factor.
Reviewed-by: jmasa, tonyp

Reviewed-by: jrose, twisti, bdelsart

Summary: Remove two unused parameters from the mem_allocate() method and update its uses accordingly.
Reviewed-by: stefank, johnc