Summary: Short-circuited an unnecessary double traversal of dirty card windows when iterating younger refs. Also renamed some cardtable methods for more clarity.
Reviewed-by: jmasa, stefank, poonam

Summary: Support transparent huge pages on Linux available since 2.6.38
Reviewed-by: iveresov, ysr
Contributed-by: aph@redhat.com

Summary: It introduces non-product cmd line parameter G1DummyRegionsPerGC which indicates how many "dummy" regions to allocate at the end of each GC. This allows the G1 heap to grow artificially and makes concurrent marking cycles more frequent irrespective of what the application that is running is doing. The dummy regions will be found totally empty during cleanup so this parameter can also be used to stress the concurrent cleanup operation.
Reviewed-by: brutisso, johnc

Summary: Use LIR_OprDesc::as_pointer_register() instead as_register/as_register_lo combination in the code changes for 7035117.
Reviewed-by: iveresov

Summary: Missing parentheses around a casted expression and some missing casts were causing build failures with the jdk6 build tools.
Reviewed-by: kvn, brutisso

Summary: Removed the unused clear argument to various cardtbale methods and unused mod_oop_in_space_iterate method. Unrelated to synopsis, added  a pair of clarifying parens in AllocationStats constructor.
Reviewed-by: brutisso, jcoomes

Summary: Allow long type for offset in G1 code in compiler implementations of Unsafe.getObject
Reviewed-by: never, iveresov

Reviewed-by: kvn

Summary: Fix -XX:+VerifyOops
Reviewed-by: kvn, never

Summary: Add new policy for one iteration loops (mostly formal pre- loops).
Reviewed-by: never

Reviewed-by: iveresov

Summary: ignore UseParallel{OldGCDensePrefix,OldGCCompacting,DensePrefixUpdate}
Reviewed-by: jwilhelm, brutisso

Summary: catch errors during the compile-time processing of method handles; back out cleanly
Reviewed-by: twisti

Summary: Improve error message formatting to give more information to user.  Also, catch a corner case related to 6930553 and 6844449.
Reviewed-by: kvn

Reviewed-by: twisti

Reviewed-by: ysr, johnc, poonam

Summary: A referent object that is only weakly reachable at the start of concurrent marking but is re-attached to the strongly reachable object graph during marking may not be marked as live. This can cause the reference object to be processed prematurely and leave dangling pointers to the referent object. Implement a read barrier for the java.lang.ref.Reference::referent field by intrinsifying the Reference.get() method, and intercepting accesses though JNI, reflection, and Unsafe, so that when a non-null referent object is read it is also logged in an SATB buffer.
Reviewed-by: kvn, iveresov, never, tonyp, dholmes

Summary: Swap checks: check for regular memory slice first and keep input phi.
Reviewed-by: never

Reviewed-by: kvn, iveresov

Reviewed-by: kvn

Reviewed-by: kvn

7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
Summary: Update the copyright to be 2010 on all changed files in OpenJDK
Reviewed-by: ohair

Reviewed-by: iveresov, kvn

Reviewed-by: kvn, iveresov

Summary: Take into account that after unroll conjoined heads and tails will fold.
Reviewed-by: never

Summary: With 7033154 we started calling c2 arraycopy stubs from c1. On sparcv9 we must clear the upper 32bits for offset (src_pos, dst_pos) and length parameters when calling them.
Reviewed-by: never, kvn

7026957: assert(type2aelembytes(store->as_Mem()->memory_type(), true) == 1 << shift->in(2)->get_int()) failed
Reviewed-by: kvn, jrose

Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: better static analysis. Take advantage of array copy stubs.
Reviewed-by: never

Summary: Clone loop predicate for clonned loops
Reviewed-by: never

Summary: Added CallLeafNoFPNode generation to IdealKit. Added i_o synchronization.
Reviewed-by: never

Reviewed-by: kvn

Reviewed-by: kvn, jrose, phh

Summary: Initialize the time stamp on ostream used for hs_err dumping.
Reviewed-by: never

Reviewed-by: kvn, kamg, jcoomes

Summary: StrIntrinsicNode::Ideal() should not optimize memory during Parse.
Reviewed-by: jrose, never

Summary: After appropriate testing, we need to turn on EnableMethodHandles and EnableInvokeDynamic by default.
Reviewed-by: never, kvn, jrose, phh

Summary: 6919934 added some unguarded cmov instructions which hit a guarantee on older hardware.
Reviewed-by: never, iveresov, kvn, phh

Summary: Remove invalid asserts
Reviewed-by: never, kvn

Summary: In Ideal() method of String intrinsics nodes look for TypeAryPtr::CHARS memory slice if memory is MergeMem. Do not unroll a loop with String intrinsics code.
Reviewed-by: never