Reviewed-by: kamg, ysr, dholmes, johnc

Summary: When using compressed oops, use compressed promoted pointers in b63:b31 of the mark word, so as not to interfere with the CMS "freeness bit" at b7. Updated mark-word layout documentation.
Reviewed-by: minqi, poonam, jmasa, coleenp

6921317: (partial) G1: assert(top() == bottom() || zfs == Allocated,"Region must be empty, or we must be setting it to
Summary: Extended the failing assertion with the new message format to get more data.
Reviewed-by: tonyp

Reviewed-by: jcoomes
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: The way Zero currently handles deoptimization can lead to methods being freed while they are still being executed.
Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Reviewed-by: kvn

Summary: Moved PromotionInfo and friends into new files promotionInfo.{h,c}pp from their previous compactibleFreeListSpace.{h,c}pp home.
Reviewed-by: apetrusenko

Summary: Zero needs a couple of new methods to allow Shark to access the new frame anchor field.
Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: modify jprt.properties to allow JPRT to use 6u18 and 6u18 targets
Reviewed-by: ohair

Summary: Moves the logic for determining the size of the Zero stack into the ZeroStack class.
Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: Changed to "Oracle Corporation"
Reviewed-by: coleenp, dcubed

Summary: The commit for 6939134 broke Zero.
Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: Add comparison functions for compressed oops to use bubblesort.
Reviewed-by: never, coleenp
Contributed-by: volker.simonis@gmail.com

Summary: Missed Zero changes for 6943304.
Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: GC-locker induced concurrent full gc should be asynchronous; policy now controlled by a separate flag, which defaults to false.
Reviewed-by: jmasa

Summary: On sun4v/CMT avoid use of memset() in BOT updates so as to prevent concurrent BOT readers from seeing the phantom zeros arising from memset()'s use of BIS.
Reviewed-by: jmasa, johnc, minqi, poonam, tonyp

Summary: Adjust MethodType lookup logic to search off the BCP, but not to cache those results
Reviewed-by: twisti

Summary: split MethodHandle.invoke into invokeExact and invokeGeneric; also clean up JVM-to-Java interfaces
Reviewed-by: twisti

Reviewed-by: coleenp, never, gbenson

Summary: Zero will exit with an error when invoked with -Xcheck:jni.
Reviewed-by: twisti, kamg
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: Disable the use of pcmpestri until it can be guaranteed that the load doesn't cross in to the uncommited space. See 6942326.
Reviewed-by: never, kvn

Summary: Update the HS18 build number to 04
Reviewed-by: jcoomes

Summary: There are unimplemented portions of the hotspot code for method handles and invokedynamic specific to SPARC.
Reviewed-by: kvn, never, jrose