Reviewed-by: kvn, never, bdelsart

Summary: optimize pointers compare using EA information.
Reviewed-by: never, twisti

Summary: Exact limit of empty loop calculated incorrectly.
Reviewed-by: iveresov, never

Summary: Use dead nodes elimination code in PhaseIdealLoop before executing EA.
Reviewed-by: never, twisti

Summary: zero array when compiled code is deoptimized.
Reviewed-by: never, twisti

7087727: JSR 292: C2 crash if ScavengeRootsInCode=2 when "static final" MethodHandle constants are in use
Reviewed-by: jrose, kvn, never

Summary: Split adjust_escape_state() method into two methods to find initializing stores.
Reviewed-by: never

Reviewed-by: never, kvn

Reviewed-by: never, bdelsart

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

Summary: NULL pointers do not escape but escape state propagation may change it leading to worser results.
Reviewed-by: never

7103224: collision between __LEAF define in interfaceSupport.hpp and /usr/include/sys/cdefs.h with gcc
Reviewed-by: never
Contributed-by: NOmair Majid <omajid@redhat.com>

Reviewed-by: kvn

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

Summary: Retry the call to fast_exception_handler_bci_for() after it returned with a pending exception. Don't cache the exception handler pc computed by compute_compiled_exc_handler() if the handler is for another (nested) exception.
Reviewed-by: kamg, kvn
Contributed-by: volker.simonis@gmail.com

Summary: Don't zero new typeArray during runtime call if the allocation is followed by arraycopy into it.
Reviewed-by: twisti

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: Add missing node limit check in IGVN optimizer
Reviewed-by: iveresov, never

Summary: Fixed warnings which prevent building VM with old compilers.
Reviewed-by: never

Summary: Replace assert with check to delete MachTemp nodes only when they are really dead.
Reviewed-by: never

Reviewed-by: kvn

Summary: Revert changes which caused regression.
Reviewed-by: never

Summary: PhaseChaitin::yank_if_dead() should be able to handle MachTemp inputs as a special case and yank them.
Reviewed-by: never, kvn

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: twisti, roland, kvn, iveresov

Reviewed-by: never

Reviewed-by: never, kvn

Reviewed-by: never

Reviewed-by: iveresov, kvn

Reviewed-by: kvn, never

Reviewed-by: jrose, never

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

Summary: Move code from finalize_offsets_and_shorten() to fill_buffer() to restore previous behavior.
Reviewed-by: 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: Use new short branch instruction in C2 generated code.
Reviewed-by: never

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

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