Merge

8182299: Enable disabled clang warnings, build on OSX 10 + Xcode 8
8182656: Make the required changes in GC code to build on OSX 10 + Xcode 8
8182657: Make the required changes in Runtime code to build on OSX 10 + Xcode 8
8182658: Make the required changes in Compiler code to build on OSX 10 + Xcode 8
Reviewed-by: jwilhelm, ehelin, phh
Contributed-by: phh <hohensee@amazon.com>, jwilhelm <jesper.wilhelmsson@oracle.com>

8173770: Image conversion improvements
Reviewed-by: kvn, vlivanov, dlong, rhalade, mschoene, iignatyev

8154831: CastII/ConvI2L for a range check is prematurely eliminated
Reviewed-by: kvn, thartmann

8152907: Update for x86 tan and log10 in the math lib
Summary: Optimize Math.tan() and log10() for 64 and 32 bit X86 architecture using Intel LIBM implementation.
Reviewed-by: kvn, twisti
Contributed-by: shravya.rukmannagari@intel.com

8003585: strength reduce or eliminate range checks for power-of-two sized arrays
Summary: change ((x & m) u<= m) to always true and ((x & (m - 1)) u< m) into (m > 0)
Reviewed-by: kvn, roland

8146629: Make phase->is_IterGVN() accessible from Node::Identity and Node::Value
Summary: Change arguments of Node::Identity() and Node::Value() from PhaseTransform* to PhaseGVN*.
Reviewed-by: kvn, roland

8143353: update for x86 sin and cos in the math lib
Summary: Optimize Math.sin() and cos() for 64 and 32 bit X86 architecture using Intel LIBM implementation.
Reviewed-by: kvn

8145096: Undefined behaviour in HotSpot
Summary: Fix some integer overflows
Reviewed-by: jrose, kvn, kbarrett, adinn, iklam

8145688: Update for x86 pow in the math lib
Summary: Optimizes Math.pow() for 64 and 32 bit X86 architecture using Intel LIBM implementation.
Reviewed-by: kvn
Contributed-by: vivek.r.deshpande@intel.com

8139575: Update for x86 log in the math lib
Summary: Add new java.lang.Math() intrinsics from x86
Reviewed-by: kvn, iveresov
Contributed-by: vivek.r.deshpande@intel.com

8132207: update for x86 exp in the math lib
Summary: Add new java.lang.Math() intrinsics from x86
Reviewed-by: kvn, iveresov
Contributed-by: vivek.r.deshpande@intel.com

8004073: Implement C2 Ideal node specific dump() method
Summary: add Node::dump_rel() to dump a node and its related nodes (the notion of "related" depends on the node at hand); add Node::dump_comp() to dump a node in compact representation; add Node::dump_rel_comp() to dump a node and its related nodes in compact representation; add the required machinery; extend some C2 IR nodes with compact and related dumping
Reviewed-by: kvn, roland

8054478: C2: Incorrectly compiled char[] array access crashes JVM
Summary: dead backbranch in main loop results in erroneous array access
Reviewed-by: kvn, iveresov

8043284: Optimize signed integer comparison
Summary: Folding of BoolNode if input add/sub of CmpI overflows and we can prove that compared value is not in the two resulting ranges. Added test for CmpI and CmpU optimizations.
Reviewed-by: kvn, rbackman, roland

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

Merge

8042786: Proper fix for 8032566
Summary: Check for overflow cases in range checks and collapse it if we can.
Reviewed-by: jrose, iveresov

Merge

8041415: remove port.{cpp,hpp} files
Summary: Hotspot should use standard headers and types
Reviewed-by: coleenp, kvn

8037816: Fix for 8036122 breaks build with Xcode5/clang
Summary: Repaired or selectively disabled offending formats; future-proofed with additional checking
Reviewed-by: kvn, jrose, stefank

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

8027754: Enable loop optimizations for loops with MathExact inside
Reviewed-by: kvn, iveresov

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

8024924: Intrinsify java.lang.Math.addExact
Reviewed-by: kvn, twisti

8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
Summary: Add NULL checks and asserts for Type::make_ptr() returned value.
Reviewed-by: twisti

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

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>

7181658: CTW: assert(t->meet(t0) == t) failed: Not monotonic
Summary: Use uncast node equivalence checks in CmpUNode::sub.
Reviewed-by: kvn, twisti
Contributed-by: vladimir.x.ivanov@oracle.com

7170463: C2 should recognize "obj.getClass() == A.class" code pattern
Summary: optimize this code pattern obj.getClass() == A.class.
Reviewed-by: jrose, kvn
Contributed-by: Krystal Mok <sajia@taobao.com>

7133857: exp() and pow() should use the x87 ISA on x86
Summary: use x87 instructions to implement exp() and pow() in interpreter/c1/c2.
Reviewed-by: kvn, never, twisti

7128352: assert(obj_node == obj) failed
Summary: Compare uncasted object nodes.
Reviewed-by: never

6956668: misbehavior of XOR operator (^) with int
Summary: optimize cmp_ne(xor(X,1),0) to cmp_eq(X,0) only for boolean values X.
Reviewed-by: never

6796786: invalid FP identity transform - (a - b) -> b - a
Reviewed-by: iveresov, twisti

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

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

6849984: Value methods for platform dependent math functions constant fold incorrectly
Reviewed-by: kvn, twisti

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

6832293: JIT compiler got wrong result in type checking with -server
Summary: Check for an object array of interface in CmpPNode::sub().
Reviewed-by: never

6820510: assertion failure with unloaded class in subnode.cpp
Reviewed-by: kvn

6667595: Set probability FAIR for pre-, post- loops and ALWAYS for main loop
Summary: Fix loop's probability. Add optimizations to avoid spilling. Change InlineSmallCode to product flag.
Reviewed-by: never

6730716: nulls from two unrelated classes compare not equal
Summary: check for not-nullness after proving that types are unrelated
Reviewed-by: kvn, never

6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
Summary: fixed few addP node type and narrow oop type problems.
Reviewed-by: rasbold, 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

6697236: missing Identity for "(X+Y) - X" into Y
Reviewed-by: kvn

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

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

6667580: Optimize CmpP for allocations
Summary: CmpP could be optimized out if it compares new allocated objects.
Reviewed-by: jrose, never, rasbold

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