Summary: Remove dead code.
Reviewed-by: stefank, ysr

Summary: Parallelize the serial code that was used to mark objects reachable from survivor objects in the collection set. Some minor improvments in the timers used to track the freeing of the collection set along with some tweaks to PrintGCDetails.
Reviewed-by: tonyp, brutisso

Summary: Race between the VM thread reading G1CollectedHeap::_mark_in_progress and it being set by the concurrent mark thread when concurrent marking is aborted by a full GC. Have the concurrent mark thread join the SuspendibleThreadSet before changing the marking state.
Reviewed-by: tonyp, brutisso

Summary: Select number of GC threads dynamically based on heap usage and number of Java threads
Reviewed-by: johnc, ysr, jcoomes

Summary: Add the new path to precompiled.hpp in the project make file
Reviewed-by: coleenp, dholmes, brutisso
Contributed-by: Nrbackman <rickard.backman@oracle.com>

Reviewed-by: johnc
Contributed-by: alejandro.murillo@oracle.com

Summary: Various cleanups and formatting changes identified during a code walk through of the changes for 6484965 ("G1: piggy-back liveness accounting phase on marking").
Reviewed-by: brutisso, tonyp

Summary: GCNotifier::pushNotification() references GCMemoryManager::_last_gc_stat but is called from GCMemoryManager::gc_end() before GCMemoryManager::_last_gc_stat is set up using the values in GCMemoryManager::_current_gc_stat. As a result the GC notification code accesses unitialized or stale data. Move the notification call after GCMemoryManager::_las_gc_stat is set, but inside the same if-block.
Reviewed-by: poonam, dholmes, fparain, mchung

Summary: Interpret MarkSweepAlwaysCompactCount < 1 as never do full compaction
Reviewed-by: ysr, tonyp, jmasa, johnc

Summary: Major cleanup of the G1CollectorPolicy class. It removes a lot of unused fields and methods and also consolidates replicated information (mainly various ways of counting the number of CSet regions) into one copy.
Reviewed-by: johnc, brutisso

Reviewed-by: dholmes, dsamersoff
Contributed-by: NChris Hegarty <chris.hegarty@oracle.com>

Reviewed-by: ysr, dholmes

Summary: Reduce what arrayOopDesc::max_array_length() returns to avoid int overflow
Reviewed-by: kvn, dholmes, tonyp

Summary: Disable PrintVMOptions by default for all builds
Reviewed-by: dsamersoff, twisti

Summary: Added case for _adaptive_size_policy
Reviewed-by: johnc, ysr

Summary: Use dead nodes elimination code in PhaseIdealLoop before executing EA.
Reviewed-by: never, twisti

Summary: zero array when compiled code is deoptimized.
Reviewed-by: never, twisti

7087727: JSR 292: C2 crash if ScavengeRootsInCode=2 when "static final" MethodHandle constants are in use
Reviewed-by: jrose, kvn, never

Reviewed-by: kvn, twisti

Reviewed-by: jrose, kvn

Reviewed-by: kvn, jrose, twisti

Reviewed-by: johnc, brutisso, poonam

Summary: Keep track of all the old regions in the heap with a heap region set.
Reviewed-by: brutisso, johnc

Summary: Split adjust_escape_state() method into two methods to find initializing stores.
Reviewed-by: never

Reviewed-by: johnc
Contributed-by: alejandro.murillo@oracle.com

Reviewed-by: never, kvn
Contributed-by: NAndreas Schoesser <andreas.schoesser@sap.com>

Reviewed-by: kvn, never