Summary: Allow G1 to decommit memory of arbitrary regions within the heap and their associated auxiliary data structures card table, BOT, hot card cache, and mark bitmaps.
Reviewed-by: mgerdin, brutisso, jwilhelm

Summary: Let HeapRegionSeq manage the heap region and auxiliary data to decrease the amount of responsibilities of G1CollectedHeap, and encapsulate this work from other code.
Reviewed-by: jwilhelm, jmasa, mgerdin, brutisso

Reviewed-by: tschatzl, jmasa

Reviewed-by: sjohanss, jmasa

Summary: Fill the last card that has been allocated into with a dummy object
Reviewed-by: tschatzl, mgerdin

Summary: Fix pattern matching of range check
Reviewed-by: kvn

Summary: Parse catch clause paths to ensure they end in throws
Reviewed-by: dlong, acorn, kamg, ctornqvi, lfoltan

Summary: propagate node replacements along control flow edges to callers
Reviewed-by: kvn, vlivanov

Reviewed-by: mgerdin, brutisso
Contributed-by: michal@frajt.eu

Summary: Increase the previous limit from 4k to 64k, added "-XX:MaxJNILocalCapacity=<capacity>" flag
Reviewed-by: hseigel, fparain

Summary: negative verify_guards when testing for corruption
Reviewed-by: sla, fparain

Summary: Wrapped memory with standard bounds checking "GuardedMemory".
Reviewed-by: zgu, fparain, dcubed

Summary: Fixed parfait initialization issue.
Reviewed-by: kvn, twisti

Summary: Remove check that causes the VerifyError
Reviewed-by: dholmes, coleenp, acorn

Reviewed-by: brutisso, tschatzl

Summary: Fixed parfait initialization issue.
Reviewed-by: kvn, twisti

Summary: Fix stackmap matching for branches.
Reviewed-by: coleenp, lfoltan, acorn

8049252: VerifyStack logic in Deoptimization::unpack_frames does not expect to see invoke bc at the top frame during normal deoptimization
Summary: Add missing check for reexecute flag to VerifyStack code.
Reviewed-by: roland

Summary: Add C2 SHA intrinsics on SPARC
Reviewed-by: kvn, roland
Contributed-by: james.cheng@oracle.com

Summary: Allow several predicates and separate intrinsic methods per one intrinsified (virtual) method.
Reviewed-by: roland

Summary: Allow to execute vectorization and crc32 optimization on Atom. Enable UseFPUForSpilling by default on x86.
Reviewed-by: roland

Summary: Remove dead code.
Reviewed-by: stefank, brutisso

Summary: Remove dead code.
Reviewed-by: stefank, brutisso

Summary: Do not try to verify timing measures for the redirty logged cards phase when it is not executed.
Reviewed-by: brutisso, jmasa

Summary: Do not try to verify timing measures for the redirty logged cards phase when it is not executed.
Reviewed-by: brutisso, jmasa

Summary: Eager reclaim also needs to clear marks of eagerly reclaimed regions if they have already been marked during concurrent mark.
Reviewed-by: jmasa

Summary: Eager reclaim also needs to clear marks of eagerly reclaimed regions if they have already been marked during concurrent mark.
Reviewed-by: jmasa

Summary: Add Resource/HandleMark in the work() method of some AbstractGangTask to reclaim these resources earlier.
Reviewed-by: tschatzl, goetz

Summary: Add Resource/HandleMark in the work() method of some AbstractGangTask to reclaim these resources earlier.
Reviewed-by: tschatzl, goetz

Summary: Try to reclaim humongous objects at every young collection after doing a conservative estimate of its liveness.
Reviewed-by: brutisso, mgerdin

Summary: Try to reclaim humongous objects at every young collection after doing a conservative estimate of its liveness.
Reviewed-by: brutisso, mgerdin

Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett.
Reviewed-by: brutisso

Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett.
Reviewed-by: brutisso

Summary: Also consider os::vm_allocation_granularity in the calculation.
Reviewed-by: brutisso

Summary: Also consider os::vm_allocation_granularity in the calculation.
Reviewed-by: brutisso

8048085: Aborting marking just before remark results in useless additional clearing of the next mark bitmap
Summary: Skip clearing the next bitmap if we just recently aborted since the full GC already clears this bitmap.
Reviewed-by: brutisso

8048085: Aborting marking just before remark results in useless additional clearing of the next mark bitmap
Summary: Skip clearing the next bitmap if we just recently aborted since the full GC already clears this bitmap.
Reviewed-by: brutisso

8049051: Use of during_initial_mark_pause() in G1CollectorPolicy::record_collection_pause_end() prevents use of seperate object copy time prediction during marking
Summary: Replaced use of during_initial_mark_pause() with the variable last_pause_included_initial_mark that holds the real old value of _during_initial_mark_pause.
Reviewed-by: brutisso, ehelin

8049051: Use of during_initial_mark_pause() in G1CollectorPolicy::record_collection_pause_end() prevents use of seperate object copy time prediction during marking
Summary: Replaced use of during_initial_mark_pause() with the variable last_pause_included_initial_mark that holds the real old value of _during_initial_mark_pause.
Reviewed-by: brutisso, ehelin

Summary: C++ code pattern from 8040121 is incorrect
Reviewed-by: kvn