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

Reviewed-by: jrose, kvn

Reviewed-by: kvn, jrose, twisti

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

Reviewed-by: never, kvn
Contributed-by: NAndreas Schoesser <andreas.schoesser@sap.com>

Reviewed-by: kvn, never

Reviewed-by: kvn

Summary: Moved precompiled.hpp to src/share/vm/precompiled
Reviewed-by: coleenp, dholmes
Contributed-by: Nrbackman <rickard.backman@oracle.com>

Reviewed-by: never, kvn

Reviewed-by: iveresov, kvn

Summary: Reimplemented class VSetI_ to restore Set::print().
Reviewed-by: never

Summary: Disable PrintVMOptions in embedded debug builds so tests are unaffected by extra output
Reviewed-by: twisti, coleenp, phh, fparain, dsamersoff

Summary: Initialize printable_bci of instruction when passed to Canonicalizer
Reviewed-by: kvn, never

Summary: Define ciMethodHandle::print_chain_impl() and ciMethodHandle::print_chain() bodies only in debug builds.
Reviewed-by: never, twisti

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

7102191: G1: assert(_min_desired_young_length <= initial_region_num) failed: Initial young gen size too small
Summary: initial_region_num actually not needed.
Reviewed-by: tonyp, johnc

7099817: CMS: +FLSVerifyLists +FLSVerifyIndexTable asserts: odd slot non-empty, chunk not on free list
Summary: Suitably weaken asserts that were in each case a tad too strong; fix up some loose uses of parameters in code related to size-indexed free list table.
Reviewed-by: jmasa, brutisso, stefank

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>

7101642: JSR 292: SIGSEGV in java.lang.invoke.MethodHandleImpl$FieldAccessor.getFieldI(Ljava/lang/Object;)I
Reviewed-by: kvn, iveresov

7094138: JSR 292: JRuby junit test fails in CallSite.setTargetNormal: obj->is_oop() failed: sanity check
Reviewed-by: iveresov, never

Reviewed-by: kvn, never, jrose

7102445: G1: Unnecessary Resource allocations during RSet scanning
Summary: Add a new per-worker thread line in the PrintGCDetails output. GC Worker Other is the difference between the elapsed time for the parallel phase of the evacuation pause and the sum of the times of the sub-phases (external root scanning, mark stack scanning, RSet updating, RSet scanning, object copying, and termination) for that worker. During RSet scanning, stack allocate DirtyCardToOopClosure objects; allocating these in a resource area was causing abnormally high GC Worker Other times while the worker thread freed ResourceArea chunks.
Reviewed-by: tonyp, jwilhelm, brutisso

Reviewed-by: kvn

Reviewed-by: kvn, iveresov

Summary: Acquire the pending list lock in the prologue method of G1's concurrent VM_Operation and release the lock in the epilogue() method. The locking/unlocking order of the pending list lock and the Heap_lock should match that in the prologue and epilogue methods of VM_GC_Operation.
Reviewed-by: tonyp, ysr

7097516: G1: assert(0<= from_card && from_card<HeapRegion::CardsPerRegion) failed: Must be in range.
Summary: Introduced a version of is_in_reserved() that looks at _orig_end as opposed to _end.
Reviewed-by: tonyp, stefank

Summary: replace the call to memmove by a simple copy loop
Reviewed-by: dholmes, kvn, never
Contributed-by: axel.siebenborn@sap.com, volker.simonis@gmail.com

Reviewed-by: kvn

Summary: Add a new, separate, pointer to the base of the array of discovered reference lists and use this new pointer in places where we iterate over the entire array.
Reviewed-by: ysr, brutisso

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

Summary: Removed unused fields and methods, removed the G1CollectoryPolicy_BestRegionsFirst class and folded its functionality into the G1CollectorPolicy class.
Reviewed-by: ysr, brutisso, jcoomes

Reviewed-by: kvn, twisti

Reviewed-by: ysr, brutisso

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>