8147645: get_ctrl_no_update() code is wrong
Summary: Array.fill intrinsification code doesn't mark replaced control as dead
Reviewed-by: kvn

Merge

8140424: don't prefix developer and notproduct flag variables with CONST_ in product builds
Reviewed-by: goetz, stefank

8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
Reviewed-by: stuefe, coleenp, roland

8034812: remove IDX_INIT macro hack in Node class
Summary: The IDX_INIT macro used by Node::Node(...) to retrieve the Compile object is removed and replaced by a call to Compile::current(). The Node constructor, new operator and all calls to it are adapted accordingly.
Reviewed-by: kvn, jrose, iveresov, goetz

8001532: C2 node files refactoring
Summary: Split C2 node files into cast, convert, countbits, intrinsic, move, narrowptr and opaquenode classes
Reviewed-by: kvn, morris

7197424: update copyright year to match last edit in jdk8 hotspot repository
Summary: Update copyright year to 2012 for relevant files
Reviewed-by: dholmes, coleenp

7193318: C2: remove number of inputs requirement from Node's new operator
Summary: Deleted placement new operator of Node - node(size_t, Compile *, int).
Reviewed-by: kvn, twisti
Contributed-by: bharadwaj.yadavalli@oracle.com

7173340: C2: code cleanup: use PhaseIterGVN::replace_edge(Node*, int, Node*) where applicable
Summary: replace frequent C2 optimizer code patterns with new methods calls
Reviewed-by: kvn, twisti
Contributed-by: vladimir.x.ivanov@oracle.com

6591247: C2 cleans up the merge point too early during SplitIf
Summary: Remove region self reference last
Reviewed-by: kvn, never

7004535: Clone loop predicate during loop unswitch
Summary: Clone loop predicate for clonned loops
Reviewed-by: never

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

6677629: PhaseIterGVN::subsume_node() should call hash_delete() and add_users_to_worklist()
Summary: Use replace_node() method instead of subsume_node().
Reviewed-by: jrose, never

6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair

6663854: assert(n != __null,"Bad immediate dominator info.") in C2 with -Xcomp
Reviewed-by: kvn

6894779: Loop Predication for Loop Optimizer in C2
Summary: Loop predication implementation
Reviewed-by: never, kvn

6810672: Comment typos
Summary: I have collected some typos I have found while looking at the code.
Reviewed-by: kvn, never

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