Summary: handle NaN costs more carefully
Reviewed-by: kvn, never

Summary: Push DecodeN node below the Null check to the non-null path to use the mach node without 0 test.
Reviewed-by: rasbold, never

Reviewed-by: rasbold, jrose

Summary: insert CastII nodes to narrow type of load_array_length() node
Reviewed-by: never, kvn

Summary: add missing implicit null check cases.
Reviewed-by: never

Summary: Add support for narrow oops in debug info to avoid decoding.
Reviewed-by: rasbold, never

Summary: Always look for the existing phi for a processed live_range.
Reviewed-by: rasbold

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

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

Reviewed-by: dholmes, dcubed

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: 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

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