Reviewed-by: coleenp, mgerdin, hseigel

8016729: ObjectAlignmentInBytes=16 now forces the use of heap based compressed oops
8005933: The -Xshare:auto option is ignored for -server
Summary: Move klass metaspace above the heap and support CDS with compressed klass ptrs.
Reviewed-by: coleenp, kvn, mgerdin, tschatzl, stefank

Summary: Removed most of the SPARC V8 instructions
Reviewed-by: kvn, twisti

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

Summary: Repair wrong code generation, added new matching rule
Reviewed-by: kvn, twisti

Reviewed-by: kvn, twisti
Contributed-by: NRichard Reingruber <richard.reingruber@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: 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>

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

Reviewed-by: kvn, never
Contributed-by: nils.eliasson@oracle.com

Summary: Nested locks elimination done before lock nodes expansion by looking for outer locks of the same object.
Reviewed-by: never, twisti

Summary: Change yank_if_dead() to recursive method to remove all dead inputs.
Reviewed-by: never

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: Avoid CMove in a loop if possible. May generate CMove if it could be moved outside a loop.
Reviewed-by: never

Summary: Instruction countTrailingZerosL() should use iRegIsafe dst register since it is used in long arithmetic.
Reviewed-by: never, twisti

Reviewed-by: kvn, never, bdelsart

Summary: Replace set() with patchable_set() to generate 8 instructions always.
Reviewed-by: iveresov, never, roland

Summary: Use BIS for zeroing new allocated big (2Kb and more) objects and arrays.
Reviewed-by: never, twisti, ysr

Reviewed-by: never, kvn

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

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

Summary: Remove flags which duplicate information in Node::NodeClasses.
Reviewed-by: never

Summary: Add new short branch instruction to Hotspot sparc assembler.
Reviewed-by: never, twisti, jrose

Summary: Use new VIS3 mov instructions on T4 for move data between general and float registers.
Reviewed-by: never, twisti

Summary: Enables cross building of a c2 VM. Support masking of shift counts when the processor architecture mandates it.
Reviewed-by: kvn, never

Summary: Add TEMP edges (and KILL projections) before duplicated operands are removed in Expand() methods.
Reviewed-by: never

Summary: Make both compilers emit near and far calls when necessary.
Reviewed-by: never, kvn, phh

Summary: read Solaris kstat data to get more precise CPU information
Reviewed-by: iveresov, never, twisti, dholmes

Summary: After 6961690 we load non-oop pointers for the constant table which could easily be materialized in a few instructions.
Reviewed-by: never, kvn

7004925: CTW: assert(nbits == 32 || -(1 << nbits-1) <= x && x < ( 1 << nbits-1)) failed: value out of range
Summary: Set offset in register if it does not fit 13 bits.
Reviewed-by: iveresov

Summary: oops should be loaded from the constant table of an nmethod instead of materializing them with a long code sequence.
Reviewed-by: never, kvn

6996240: The BitSet.length method sometimes returns an index+1 value less than that of the highest bit set.
Reviewed-by: never, kvn

Summary: Use hardware DIV instruction for long division by constant when it is faster than code with multiply.
Reviewed-by: never

Summary: This is the renaming part of 6961697 to keep the actual changes small for review.
Reviewed-by: kvn, never