Summary: changes necessary for some JSR292 ports
Reviewed-by: jrose, dholmes

Summary: restore unrolling code for CaffeineMark.
Reviewed-by: never

Summary: ARM has instructions to move data directly between the fpu and integer registers.
Reviewed-by: kvn, never

Reviewed-by: kvn

Summary: Add check that ciEnv::_CallSite_klass is initialized.
Reviewed-by: jrose

Reviewed-by: kvn, twisti

Reviewed-by: twisti, roland, kvn, iveresov

Summary: Use BIS and prefetch in arraycopy stubs for Sparc (BIS for T4 only).
Reviewed-by: never, iveresov

Reviewed-by: never

Reviewed-by: never, kvn

Reviewed-by: never

Reviewed-by: iveresov, kvn

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

Reviewed-by: kvn, never

Summary: Increase the limit of code emitted per LIR instruction, increase the max size of the nmethod generated by C1
Reviewed-by: never, kvn, johnc

Reviewed-by: kvn, dholmes, stefank, coleenp

Reviewed-by: jrose, never

Summary: Remove region self reference last
Reviewed-by: kvn, never

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

Reviewed-by: kvn, twisti

Summary: fix assert, prefetchnta is supported since SSE not SSE2.
Reviewed-by: never

Summary: Run test only on systems with 2Gbyte or more memory. Don't zap heap to reduce execution time.
Reviewed-by: iveresov

Reviewed-by: johnc

Summary: Move code from finalize_offsets_and_shorten() to fill_buffer() to restore previous behavior.
Reviewed-by: never

Reviewed-by: never, kvn

Reviewed-by: kvn, iveresov, never

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

Reviewed-by: kvn, never, bdelsart

Summary: Refactor the allocation code during GC to use the G1AllocRegion abstraction. Use separate subclasses of G1AllocRegion for survivor and old regions. Avoid BOT updates and dirty survivor cards incrementally for the former.
Reviewed-by: brutisso, johnc, ysr

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

Summary: Handlize MemoryUsage klass oop in createGCInfo routine
Reviewed-by: tonyp, fparain, ysr, jcoomes

Summary: Use cl->is_valid_counted_loop() check.
Reviewed-by: never