8054033: Remove unused references to Compile*
Summary: Removed unused references to Compile* missed by JDK-8034812.
Reviewed-by: kvn, 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

8031755: Type speculation should be used to optimize explicit null checks
Summary: feed profiling data about reference nullness to type speculation.
Reviewed-by: kvn, iveresov

8027422: assert(_gvn.type(obj)->higher_equal(tjp)) failed: cast_up is no longer needed
Summary: type methods shouldn't always operate on speculative part
Reviewed-by: kvn, twisti

8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov

8015107: NPG: Use consistent naming for metaspace concepts
Reviewed-by: coleenp, mgerdin, hseigel

8003310: Enable -Wunused-function when compiling with gcc
Summary: Add the -Wunused-function flag and remove a number of unused functions.
Reviewed-by: dholmes, coleenp, kvn

7054512: Compress class pointers after perm gen removal
Summary: support of compress class pointers in the compilers.
Reviewed-by: kvn, twisti

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

7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
Summary: use shorter instruction sequences for atomic add and atomic exchange when possible.
Reviewed-by: kvn, jrose

6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>

7146442: assert(false) failed: bad AD file
Summary: Take into account only stores captured by Initialize node. Added missing check for Top input in value() methods.
Reviewed-by: never

7098194: integrate macosx-port changes
Summary: Integrate bsd-port/hotspot and macosx-port/hotspot changes as of 2011.09.29.
Reviewed-by: kvn, dholmes, never, phh
Contributed-by: Christos Zoulas <christos@zoulas.com>, Greg Lewis <glewis@eyesbeyond.com>, Kurt Miller <kurt@intricatesoftware.com>, Alexander Strange <astrange@apple.com>, Mike Swingler <swingler@apple.com>, Roger Hoover <rhoover@apple.com>, Victor Hernandez <vhernandez@apple.com>, Pratik Solanki <psolanki@apple.com>

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

Merge

6954029: Improve implicit null check generation with compressed oops
Summary: Hoist DecodeN instruction above null check
Reviewed-by: never, twisti

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

6883468: C2 compiler enters infinite loop in PhaseIterGVN::transform
Summary: Avoid ideal transformation ping-pong between AddPNode::Ideal() and CastX2PNode::Ideal().
Reviewed-by: cfang

6862919: Update copyright year
Summary: Update copyright for files that have been modified in 2009, up to 07/09
Reviewed-by: tbell, ohair

6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
Summary: These methods can be instrinsified by using bit scan, bit test, and population count instructions.
Reviewed-by: kvn, never

6833879: Assigning positive zero is ignored when old value is negative zero
Summary: Don't perform CMOVE identity optimization for floating point types
Reviewed-by: kvn, never

6791178: Specialize for zero as the compressed oop vm heap base
Summary: Use zero based compressed oops if java heap is below 32gb and unscaled compressed oops if java heap is below 4gb.
Reviewed-by: never, twisti, jcoomes, coleenp

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

6747051: Improve code and implicit null check generation for compressed oops
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

6736417: Fastdebug C2 crashes in StoreBNode::Ideal
Summary: The result of step_through_mergemem() and remove_dead_region() is not checked in some cases.
Reviewed-by: never

Merge

6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
Summary: Remove DecodeNNode::decode() and EncodePNode::encode() methods.
Reviewed-by: rasbold, never

6715633: when matching a memory node the adr_type should not change
Summary: verify the adr_type of a mach node was not changed
Reviewed-by: rasbold, never

6719955: Update copyright year
Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell

6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
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

6695810: null oop passed to encode_heap_oop_not_null
Summary: fix several problems in C2 related to Escape Analysis and Compressed Oops.
Reviewed-by: never, jrose

6689060: Escape Analysis does not work with Compressed Oops
Summary: 64-bits VM crashes with -XX:+AggresiveOpts (Escape Analysis + Compressed Oops)
Reviewed-by: never, sgoldman

6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv
Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold

6667618: disable LoadL->ConvL2I ==> LoadI optimization
Summary: this optimization causes problems (sizes of Load and Store nodes do not match) for objects initialization code and Escape Analysis
Reviewed-by: jrose, never

Initial load