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

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

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: Add missing _instance_id settings and other EA fixes.
Reviewed-by: rasbold

Summary: Remove call to repush_if_args()
Reviewed-by: kvn, jrose

Summary: switch on EA by default, optimize Connection Graph construction
Reviewed-by: rasbold, never

Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell

Summary: Set instance_id to InstanceBot for InstPtr->meet(AryPtr) when types are not related.
Reviewed-by: jrose, never

Reviewed-by: kvn, jrose

Summary: Remove DecodeNNode::decode() and EncodePNode::encode() methods.
Reviewed-by: rasbold, never

Summary: verify the adr_type of a mach node was not changed
Reviewed-by: rasbold, never

6714694: assertion in 64bit server vm (store->find_edge(load) != -1,"missing precedence edge") with COOPs
Summary: The method raise_LCA_above_marks() terminates LCA search early.
Reviewed-by: rasbold, never

Summary: Add missed checks for TOP and missed checks for non-dominating cases
Reviewed-by: rasbold, jrose, never

Reviewed-by: kvn

Reviewed-by: kvn, jrose, rasbold

6711083: 64bit JVM crashes with Internal Error (type.cpp:763) - ShouldNotReachHere() with enabled COOPs
Summary: Add NarrowOop to various xmeet routines
Reviewed-by: kvn, sgoldman, jrose, rasbold

Summary: exclude UEP size from nmethod code size and use narrow klass oop to load prototype header.
Reviewed-by: jrose, never

Summary: guard AryEqNode construction with has_match_rule() test, set SpecialArraysEquals default off
Reviewed-by: kvn, never

Summary: Intrinsify java/util/Arrays.equals(char[], char[])
Reviewed-by: kvn, never

Summary: Generate addresses and implicit null checks with narrow oops to avoid decoding.
Reviewed-by: jrose, never

6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
Summary: Add LoadNKlass and CMoveN nodes, use CmpN and ConN nodes to generate narrow oops compare instructions.
Reviewed-by: never, rasbold

Summary: fix several problems in C2 related to Escape Analysis and Compressed Oops.
Reviewed-by: never, jrose

Summary: The method Node::dominates loops in the dead code which does not have a Region node.
Reviewed-by: jrose, never

Summary: Transform long division by constant into multiply
Reviewed-by: never, kvn

Summary: rework Value method for ModD and ModF, to DTRT for infinities
Reviewed-by: sgoldman, kvn, rasbold

Summary: stop compilation after negative array allocation
Reviewed-by: never, jrose

Summary: NeverBranchNodes aren't handled properly
Reviewed-by: kvn, sgoldman, rasbold, jrose

Summary: EA and initialization optimizations could bypass these nodes.
Reviewed-by: rasbold, never

Reviewed-by: kvn, rasbold, sgoldman, jrose

Summary: 64-bits VM crashes with -XX:+AggresiveOpts (Escape Analysis + Compressed Oops)
Reviewed-by: never, sgoldman

Summary: Optimization in CmpPNode::sub() removed the valid compare instruction because of false positive answer from detect_dominating_control().
Reviewed-by: jrose, sgoldman

Summary: Optimization in CmpPNode::sub() removed the valid compare instruction because of false positive answer from detect_dominating_control().
Reviewed-by: jrose, sgoldman

Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv
Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold

Summary: Without LoopNode, exit early from loop unswitching and partial peeling
Reviewed-by: kvn, never, sgoldman

Summary: Don't optimize zero length array allocations at compile time.
Reviewed-by: kvn, never

Reviewed-by: kvn, rasbold