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

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

Reviewed-by: jmasa, tschatzl, ehelin
Contributed-by: tony.printezis@oracle.com, bengt.rutisson@oracle.com

8029443: 'assert(klass->is_loader_alive(_is_alive)) failed: must be alive' during VM_CollectForMetadataAllocation
Summary: Added missing metadata relocation to 'loadConP_no_oop_cheap' on Sparc if the pointer is referring to a Klass. Added jtreg test.
Reviewed-by: kvn

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

8049043: Load variable through a pointer of an incompatible type in hotspot/src/share/vm/runtime/sharedRuntimeMath.hpp
Summary: Fixed parfait warnings caused by __HI and __LO macros in sharedRuntimeMath.hpp by using a union.
Reviewed-by: kvn

8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
Summary: Fixed parfait warnings in globalDefinitions files by using a union for casts.
Reviewed-by: kvn

Summary: Factor out definitions of copysignA and scalbnA into new file sharedRuntimeMath.hpp
Reviewed-by: kvn

Reviewed-by: kvn

Reviewed-by: roland

Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn

Summary: Added -XX:+/-ClassUnloadingWithConcurrentMark
Reviewed-by: jmasa, brutisso, mgerdin

8051883: TEST.groups references missing test: gc/class_unloading/TestCMSClassUnloadingDisabledHWM.java
Reviewed-by: brutisso, tschatzl, ehelin, jmasa, dfazunen

Reviewed-by: brutisso, tschatzl, ehelin, jmasa, dfazunen

Reviewed-by: stefank, brutisso

Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
Contributed-by: stefan.karlsson@oracle.com, mikael.gerdin@oracle.com

Reviewed-by: iveresov, mgerdin

Summary: Change parent of G1OffsetTableContigSpace to CompactibleSpace, reimplement missing functionality
Reviewed-by: stefank, jmasa, tschatzl

Reviewed-by: stefank, brutisso, tschatzl

Summary: Rename save_marks to record_top_and_timestamp and remove som unused but related methods
Reviewed-by: stefank, ehelin

Reviewed-by: tschatzl, stefank

Reviewed-by: stefank, tschatzl

Reviewed-by: vlivanov, ehelin

Reviewed-by: mgerdin, tschatzl

Summary: Also-reviewed-by: kim.barrett@oracle.com
Reviewed-by: jmasa, jwilhelm

Reviewed-by: ehelin, mgerdin

Summary: Get rid of some duplicated implementations and change nonsense implementations to pure virtuals
Reviewed-by: stefank, jmasa

Summary: Only declare the functions where they are actually needed.
Reviewed-by: tschatzl, stefank

Reviewed-by: brutisso, tschatzl, stefank

Reviewed-by: tschatzl, stefank

Summary: Allocate temporary BitMaps in the VMThread's resource area
Reviewed-by: stefank, sjohanss

Reviewed-by: mgerdin, coleenp

Reviewed-by: coleenp, pliden

Reviewed-by: coleenp, mgerdin

Reviewed-by: tschatzl, coleenp

Reviewed-by: tschatzl, brutisso

Reviewed-by: tschatzl, mgerdin, jmasa

Reviewed-by: mgerdin, brutisso