Summary: added ability in C2 to expand mach nodes to several mach nodes after register allocation
Reviewed-by: kvn

Summary: Enables private copies of inputs for recent spill copies as well
Reviewed-by: kvn, twisti

Reviewed-by: kvn, twisti

Reviewed-by: kvn, twisti

Summary: Similar to specifying functions returning constants (as ins_avoid_back_to_back()) adlc now accepts specifications with prefix ins_field_xxx(tp) and adds field xxx of type tp to the node.
Reviewed-by: kvn

Summary: declare all user-defined operator new()s within Hotspot code with the empty throw() exception specification
Reviewed-by: coleenp, twisti, dholmes, hseigel, dcubed, kvn, ccheung
Contributed-by: lois.foltan@oracle.com

Summary: Create public methods for accessing the nodes in a block
Reviewed-by: kvn, roland

Summary: Make the destructor virtual (note more non-compiler hotspot errors occur downstream)
Reviewed-by: kvn, twisti

Summary: added #includes needed for ppc64 port. Renamed _MODEL_ppc to _MODEL_ppc_32 and renamed corresponding old _ppc files to _ppc_32.
Reviewed-by: dholmes, kvn

8016157: During CTW: C2: assert(!def_outside->member(r)) failed: Use of external LRG overlaps the same LRG defined in this block
Summary: Disable rematerialization for negD node
Reviewed-by: kvn, roland

Summary: refactored code to allow platform-specific differences
Reviewed-by: dlong, twisti
Contributed-by: NGoetz Lindenmaier <goetz.lindenmaier@sap.com>

Reviewed-by: kvn

Reviewed-by: kvn, roland
Contributed-by: niclas.adlertz@oracle.com

Reviewed-by: kvn, roland
Contributed-by: niclas.adlertz@oracle.com

Reviewed-by: roland, kvn
Contributed-by: niclas.adlertz@oracle.com

Summary: GetAndSetP's MachNode should capture bottom type.
Reviewed-by: kvn

Reviewed-by: kvn, twisti

Summary: Use SSE4.2 and AVX2 instructions for encodeArray intrinsic.
Reviewed-by: roland

Reviewed-by: jrose, kvn

Summary: several changes to adlc to improve its usability
Reviewed-by: kvn
Contributed-by: goetz.lindenmaier@sap.com

Summary: Removed LoadUI2L node from Ideal nodes, use match rule in .ad files instead.
Reviewed-by: kvn

Summary: support of compress class pointers in the compilers.
Reviewed-by: kvn, twisti

Summary: Add generation of vectors for scalar shift count.
Reviewed-by: roland, twisti, dlong

Summary: Deleted placement new operator of Node - node(size_t, Compile *, int).
Reviewed-by: kvn, twisti
Contributed-by: bharadwaj.yadavalli@oracle.com

Summary: Added missed _bottom_type set in ArchDesc::defineExpand() and missed vector nodes in MatchRule::is_vector().
Reviewed-by: twisti, roland, dlong

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: Njmasa &lt;jon.masamitsu@oracle.com&gt;, stefank &lt;stefan.karlsson@oracle.com&gt;, mgerdin &lt;mikael.gerdin@oracle.com&gt;, never <tom.rodriguez@oracle.com>

6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: NJohn Rose &lt;john.r.rose@oracle.com&gt;, Christian Thalinger &lt;christian.thalinger@oracle.com&gt;, Michael Haupt <michael.haupt@oracle.com>

Summary: Increase vector size up to 256-bits for YMM AVX registers on x86.
Reviewed-by: never, twisti, roland

Reviewed-by: kvn, twisti
Contributed-by: NKrystal Mok <sajia@taobao.com>

Summary: use shorter instruction sequences for atomic add and atomic exchange when possible.
Reviewed-by: kvn, jrose

Summary: adds store store barrier after initialization of header and body of objects.
Reviewed-by: never, kvn

Summary: allow reg_class definition as a function.
Reviewed-by: kvn, never

Summary: ADLC generates code to prepare the register string to be printed in a char array but then calls print without the char array as an argument.
Reviewed-by: never

Reviewed-by: kvn, twisti, jrose
Contributed-by: NKurt Miller &lt;kurt@intricatesoftware.com&gt;, Greg Lewis &lt;glewis@eyesbeyond.com&gt;, Jung-uk Kim &lt;jkim@freebsd.org&gt;, Christos Zoulas &lt;christos@zoulas.com&gt;, Landon Fuller &lt;landonf@plausible.coop&gt;, The FreeBSD Foundation &lt;board@freebsdfoundation.org&gt;, Michael Franz &lt;mvfranz@gmail.com&gt;, Roger Hoover &lt;rhoover@apple.com&gt;, Alexander Strange <astrange@apple.com>

Summary: abstracted way to declare that the MachNode has the effect of a call (kills caller save registers, preserves callee save registers)
Reviewed-by: twisti, never

Reviewed-by: kvn, never, bdelsart

Summary: on T4 2 BIS instructions should be issued to prefetch 64 bytes
Reviewed-by: iveresov, phh, twisti

Summary: save/restore label and block in scratch_emit_size()
Reviewed-by: never

Summary: Use new short branch instruction in C2 generated code.
Reviewed-by: never

Summary: replace MemBarAcquire/MemBarRelease nodes on the monitor enter/exit code paths with new MemBarAcquireLock/MemBarReleaseLock nodes
Reviewed-by: kvn, twisti