Summary: Tiered compilation has increased the number of nmethods in the code cache. This has, in turn, significantly increased the number of marked nmethods processed during the StrongRootsScope destructor. Create a specialized version of CodeBlobToOopClosure for G1 which places only those nmethods that contain pointers into the collection set on to the marked nmethods list.
Reviewed-by: iveresov, tonyp

Reviewed-by: kvn

Reviewed-by: kvn, jrose, kevinw, brutisso, twisti, jmasa

Reviewed-by: phh, bobv, coleenp, dcubed
Contributed-by: NJiangli Zhou <jiangli.zhou@oracle.com>

Summary: Reduce class runtime memory usage by packing 4 instanceKlass boolean fields into single u1 field. Save 4-byte for each loaded class.
Reviewed-by: dholmes, bobv, phh, twisti, never, coleenp
Contributed-by: NJiangli Zhou <jiangli.zhou@oracle.com>

Reviewed-by: jrose, 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>

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>

Reviewed-by: kvn

Reviewed-by: iveresov, kvn

Reviewed-by: jrose, never

Reviewed-by: kvn, never, bdelsart

Summary: don't skip receiver when GC'ing compiled invokedynamic callsites
Reviewed-by: twisti, kvn, jrose

Reviewed-by: never, twisti

Reviewed-by: twisti, jrose

Summary: Implement a more accurate is_scavengable()
Reviewed-by: stefank, jcoomes, ysr

Summary: Eliminate the race condition.
Reviewed-by: kvn

Reviewed-by: iveresov

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: never, kvn

Reviewed-by: kvn, coleenp, twisti, stefank

Reviewed-by: kvn

7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
Summary: Change nmethod_lock() to also prevent zombification of the nmethod. CompiledMethodUnload events also need to lock the nmethod. Clean ups in nmethod::make_not_entrant_or_zombie()
Reviewed-by: dholmes, kamg, never, dsamersoff, ysr, coleenp, acorn

Summary: Remove _last_pc_desc and use pcdescs[0] instead.
Reviewed-by: dcubed, coleenp, ysr

Summary: Use largest_free_block() instead of unallocated_capacity().
Reviewed-by: iveresov, never, ysr

Reviewed-by: kvn, iveresov

7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
Reviewed-by: never, bdelsart

6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
Summary: Defer posting events from the compiler thread: use service thread
Reviewed-by: coleenp, dholmes, never, dcubed

Reviewed-by: dholmes, bdelsart

Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank

Reviewed-by: coleenp, jrose, kvn, dcubed

Summary: remove clear_scratch_buffer_blob and let init_scratch_buffer_blob free and allocate a new blob if required.
Reviewed-by: twisti

Reviewed-by: never

Summary: An interference between a fix for 6993125 and disabled optimization in compressedStream.cpp produces a warning with VS2010. Disable the warning for the code fragment for which the optimizations are disabled.
Reviewed-by: kvn

Summary: Add 'GetThisObject' function
Reviewed-by: never, coleenp

Summary: Added an ifndef DONT_USE_PRECOMPILED_HEADER to precompiled.hpp. Set up DONT_USE_PRECOMPILED_HEADER when compiling with Sun Studio or when the user specifies USE_PRECOMPILED_HEADER=0. Fixed broken include dependencies.
Reviewed-by: coleenp, kvn

Summary: This change implements compressed oops for C1 for x64 and sparc. The changes are mostly on the codegen level, with a few exceptions when we do access things outside of the heap that are uncompressed from the IR. Compressed oops are now also enabled with tiered.
Reviewed-by: twisti, kvn, never, phh

Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg