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

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

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

Summary: c1 does sign-extension when it loads ints and shorts from memory to 64-bit registers. This causes problems for c2 because it relies on the fact the int passed in a 64-bit register is zero-extended.
Reviewed-by: never

Reviewed-by: twisti, dcubed

Reviewed-by: never, twisti
Contributed-by: NHiroshi Yamauchi <yamauchi@google.com>

Reviewed-by: kvn, twisti, apetrusenko, never, dcubed

6871109: G1: remove the concept of the scan only prefix
Summary: Removed scan only regions and associated code. The young portion of the collection set is now constructed incrementally - when a young region is retired as the current allocation region it is added to the collection set.
Reviewed-by: apetrusenko, iveresov, tonyp

Reviewed-by: twisti

Summary: With Zero on a GC crash the stack was dumped differently to other crashes.
Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: ensure_parsability() must be called even if GC_locker prevents GC.
Reviewed-by: ysr, chrisphi

Summary: Replaces the G1-specific parameter with the existing ones that are used by the other GCs (YoungPLABSize and OldPLABSize)
Reviewed-by: tonyp, johnc

Summary: Two new files are missing in the push for 6941224.
Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>