Summary: An update buffer is not processed correctly, which causes roots into the collection set not to be scanned and, hence, for the heap to be corrupted. The cause is that an object is accessed after it has been explicitly deleted, which causes a race.
Reviewed-by: jcoomes, ysr

Summary: Add asserts with dead loop checks in AddNode::Ideal().
Reviewed-by: never

Summary: Changed the guard on the definition of the method value in HeapWord from ASSERT to not PRODUCT.
Reviewed-by: iveresov, apetrusenko

Reviewed-by: kvn, rasbold

Summary: Turn off c2 implicit null checking on windows and large pages specified.
Reviewed-by: jrose, xlu

Reviewed-by: rasbold

Summary: insert_goto_at should set frequency for newly created blocks
Reviewed-by: never

Summary: Missing edge to a call's return value in EA Connection Graph.
Reviewed-by: never

Summary: 6730514 inadvertently disabled perm gen expansion; reenable
Reviewed-by: ysr

Summary: Set offset to OffsetBot when the add overflows in TypePtr::add_offset()
Reviewed-by: jrose, never

Summary: The result of step_through_mergemem() and remove_dead_region() is not checked in some cases.
Reviewed-by: never

6459804: Want client (c1) compiler for x86_64 (amd64) for faster start-up
Reviewed-by: kvn

Reviewed-by: rasbold, martin
Contributed-by: doko@ubuntu.com

Summary: Fixed CMSConcMarkingTask::reset() to store the restart address upon a marking stack overflow and to use it as the base, suitably aligned, for restarting the scan in CMSConcMarkingTask::do_scan_and_mark().
Reviewed-by: jcoomes, tonyp

Summary: Include DB fix to resolve a compilation issue with the latest gcc.
Reviewed-by: iveresov, ysr

Reviewed-by: dholmes, dcubed

6622418: G1: assert(false,"Non-balanced monitor enter/exit!") fails
Summary: The mark-sweep compact (which we use for full gc) wrapper did not save the mark words for biased locked objects.  The fix is to trivially call the appropriate methods.
Reviewed-by: tonyp, ysr

Summary: The fix avoids a call to address_for_index() in this particular situation where it is not known if the passed index is in bounds.
Reviewed-by: tonyp

Summary: Temporarily switch off the precleaning of Reference lists completely until related issues are fixed in 6722113.
Reviewed-by: jmasa, poonam, tonyp

Summary: Removing two buggy methods that should not be used, but ended up being used due to a re-organization in the class hierarchy.
Reviewed-by: jmasa, ysr, kamg, coleenp

Summary: check for not-nullness after proving that types are unrelated
Reviewed-by: kvn, never

Summary: rematerializing nodes results in incorrect inputs
Reviewed-by: rasbold

Reviewed-by: jcoomes

Reviewed-by: dholmes, dcubed, jcoomes

Summary: When an object array overflows during precleaning, we should have been marking the entire array dirty, not just its first card.
Reviewed-by: jmasa, poonam, tonyp

Summary: java.version added to property_counters_ss array
Reviewed-by: swamyv

Summary: delay transform call until uses of t2 are constructed
Reviewed-by: never

Summary: Under certain circumstances, two cleanup threads can claim and process the same region.
Reviewed-by: apetrusenko, ysr

Summary: Workaround for CompOops bug
Reviewed-by: coleenp

Summary: fixed few addP node type and narrow oop type problems.
Reviewed-by: rasbold, never

Summary: Switch off executing Escape Analysis by default for now
Reviewed-by: rasbold

Summary: An expansion by 0 bytes was not anticipated when the assertion was composed.
Reviewed-by: jjh, jcoomes, apetrusenko

6652160: G1: assert(cur_used_bytes == _g1->recalculate_used(),"It should!") at g1CollectorPolicy.cpp:1425
Summary: In attempt_allocation_slow() wait for the concurrent cleanup to complete before modifying _summary_bytes_used.
Reviewed-by: jmasa, apetrusenko

Summary: add safepoint before popping expression stack, not after
Reviewed-by: kvn

Summary: Escape Analysis fixes.
Reviewed-by: never, rasbold

Summary: Add mechanism to ignore unsupported flags for a set period of time
Reviewed-by: acorn, never, coleenp

Summary: partial peeling shouldn't place clones into loop
Reviewed-by: kvn

6712835: Server compiler fails with assertion (loop_count < K,"infinite loop in PhaseIterGVN::transform")
Reviewed-by: kvn

Summary: make do_ifnull() handling similar to do_if()
Reviewed-by: jrose, kvn

Summary: allocate alignment-sized page(s) below java heap so that memory accesses at heap_base+1page give signal and cause an implicit null check
Reviewed-by: kvn, jmasa, phh, jcoomes