6889757: G1: enable card mark elision for initializing writes from compiled code (ReduceInitialCardMarks)
Summary: Defer the (compiler-elided) card-mark upon a slow-path allocation until after the store  and before the next subsequent safepoint; G1 now answers yes to can_elide_tlab_write_barriers().
Reviewed-by: jcoomes, kvn, never

Summary: What the title says. We don't use SIMPLE_STACK any more.
Reviewed-by: ysr

Summary: See title.
Reviewed-by: jmasa, ysr, jcoomes, iveresov, tonyp

Summary: change more guarantees in concurrent marking into asserts.
Reviewed-by: apetrusenko, iveresov

Summary: Remove incorrect guarantee.
Reviewed-by: apetrusenko, iveresov

Summary: When we copy objects to survivors during marking, we incorrectly set NTAMS to bottom, which causes marking to miss visiting some of those objects.
Reviewed-by: apetrusenko, iveresov

Summary: It tidies up the G1 heap verification a bit. In particular, when the verification is done in parallel and there is a failure, this is propagated to the top level and the heap is dumped at the end, not by every thread that encounters a failure.
Reviewed-by: johnc, jmasa

Summary: When G1 is enabled, thread dumps are inconsistent as the info for some of the G1 threads is not formatted properly.
Reviewed-by: ysr, johnc

Reviewed-by: iveresov

Summary: Modify operand passed to C1 pre-barrier to be the operand representing the address of the object field that is being stored.
Reviewed-by: never

Summary: Add IgnoreUnrecognizedVMOptions for JTreg tests (on a product build) to pass with DeoptimizeALot
Reviewed-by: kvn

Summary: Avoid ideal transformation ping-pong between AddPNode::Ideal() and CastX2PNode::Ideal().
Reviewed-by: cfang

Summary: After mechanically merging changes, some by-hand adjustments are needed.
Reviewed-by: ysr

Summary: Removed the unnecessary #ifdef's which were interfering with the build of the Zero-assembler port
Reviewed-by: ysr, jcoomes

Summary: remove over locking by VMThread on "is thread suspended?" check
Reviewed-by: dholmes, acorn, andrew

Summary: Fix races in jmethodID cache and JNI itable index cache.
Reviewed-by: ikrylov, acorn

Summary: Add missing instance_id meet.
Reviewed-by: never

Reviewed-by: kamg, dcubed

Reviewed-by: kvn, twisti

Summary: Make a special root-list for those few nmethods which might contain non-perm oops.
Reviewed-by: twisti, kvn, never, jmasa, ysr

Summary: Do nothing for AddP node which has type not related to the type of allocated object.
Reviewed-by: never

Summary: Druing heap shrinking, check for emptiness of a region before modifying its ZF status.
Reviewed-by: tonyp

Summary: filter out non-primitives before deciding whether two ops can be packed
Reviewed-by: kvn, never

6875866: Intrinsic for String.indexOf() is broken on x86 with SSE4.2
Summary: Modify String intrinsic methods to pass char[] pointers instead of string oops.
Reviewed-by: never

6877254: Server vm crashes with no branches off of store slice" when run with CMS and UseSuperWord(default)
Summary: design StoreCMNode::Ideal to promote its oopStore input if the input is a MergeMem node
Reviewed-by: kvn, never

Summary: The build fails if the bootstrap JDK defaults to <1.5
Reviewed-by: jcoomes

Summary: Removed second CheckCastPP and use MembarCPUOrder after arraycopy to cloned object.
Reviewed-by: never

Summary: Fix CDS/CMS option overrides related to iCMS option CMSIncrementalMode; explicate overrides to error stream.
Reviewed-by: coleenp

Summary: Look through chained AddP nodes in get_addp_base().
Reviewed-by: jrose