Summary: Implemented block-based work stealing. Moved copying during the rset scanning phase to the main copying phase. Made the size of rset table depend on the region size.
Reviewed-by: apetrusenko, tonyp

6782663: Data produced by PrintGCApplicationConcurrentTime and PrintGCApplicationStoppedTime is not accurate.
Summary: Update and display the timers associated with these flags for all safepoints.
Reviewed-by: ysr, jcoomes

Summary: The operations of re-using a RSet component and expanding the same RSet component were not mutually exlusive, and this could lead to RSets getting corrupted and entries being dropped.
Reviewed-by: iveresov, johnc

Summary: the guarantee is too strict and the test will fail (incorrectly) if the class is not in the system dictionary but in the placeholders.
Reviewed-by: acorn, phh

Reviewed-by: kvn

Reviewed-by: never, twisti, kvn, rasbold
Contributed-by: NHiroshi Yamauchi <yamauchi@google.com>

Summary: Print "made not compilable" line  only for deoptimizations.
Reviewed-by: never

Reviewed-by: kvn

Summary: Invalid assert. Filter cards evicted from the card count cache instead.
Reviewed-by: apetrusenko, tonyp

Summary: Add support for chaining Windows UnhandledExceptionFilter handlers
Reviewed-by: kamg, dholmes, never, acorn, ikrylov

Summary: Fixed missing pre-barrier calls for G1, modified C1 to call pre- and correct post-barrier interfaces, deleted obsolete interface, (temporarily) disabled redundant deferred barrier in BacktraceBuilder.
Reviewed-by: coleenp, jmasa, kvn, never

Summary: Fix incorrect marking of methods as not compilable.
Reviewed-by: never

Summary: Rename can_post_exceptions support to can_post_on_exceptions. Add support for should_post_on_exceptions flag to permit per JavaThread optimizations.
Reviewed-by: never, kvn, dcubed
Contributed-by: tom.deneau@amd.com

Summary: MethodHandle invoke call sites should not be fixed-up by SharedRuntime::fixup_callers_callsite as c2i/i2c adapters are used to implement MethodHandle actions.
Reviewed-by: kvn, never

Summary: We need to introduce a new MH deopt handler so we can easily determine if the deopt happened at a MH call site or not.
Reviewed-by: never, jrose

Reviewed-by: kvn, twisti

Summary: Interval checking is now being performed on the values passed in for these two flags. The current acceptable range for RefDiscoveryPolicy is [0..1], and for TLABWasteTargetPercent it is [1..100].
Reviewed-by: apetrusenko, ysr

Summary: Speculatively unload the oldest nmethods when code cache gets full.
Reviewed-by: never, kvn
Contributed-by: eric.caspole@amd.com

Reviewed-by: mr

Summary: We need to introduce a new MH deopt handler so we can easily determine if the deopt happened at a MH call site or not.
Reviewed-by: never, jrose

Reviewed-by: kvn

Reviewed-by: kvn

Summary: Two recent commits broke the build on Zero.
Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: G1 now answers "no" to the query can_elide_initializing_store_barrier() in the product build. A debug flag allows alternate behaviour in debug builds.
Reviewed-by: iveresov, tonyp

Summary: Add safepoint after CompileTheWorldSafepointInterval (100) compilations and do full sweep of CodeCache each time.
Reviewed-by: never
Contributed-by: eric.caspole@amd.com

Summary: Trying this again, as the original change was lost.
Reviewed-by: ysr, jmasa

Summary: Stub code generated to call G1 barriers does not allocate spill space on the stack as required by Windows x64 ABI. The fix is to use more ABI-friendly call_VM_leaf().
Reviewed-by: iveresov, never, kvn

Summary: Adjust assertion checking for ExplicitGCInvokesConcurrentAndUnloadsClasses as a reason for class unloading
Reviewed-by: ysr

Reviewed-by: kvn, jrose

Summary: Recent changes call os::is_allocatable which was not implemented in Zero.
Reviewed-by: twisti
Contributed-by: NEdward Nevill <ed@camswl.com>

Reviewed-by: kvn, cfang

Reviewed-by: kvn, twisti

Reviewed-by: twisti, kvn

Summary: When enqueuing a completed PtrQueue buffer, cache a local pointer to the buffer and clear the field in the PtrQueue prior to unlocking the mutex referenced by the _lock field and pass the cached local value to the enqueuing routine. This will prevent the same completed buffer being enqueued multiple times, which causes the hang.
Reviewed-by: ysr

Summary: Deferred card marks are now flushed during the gc prologue. Parallel[Scavege,OldGC] and SerialGC no longer defer card marks generated by COMPILER2 as a result of ReduceInitialCardMarks. For these cases, introduced a diagnostic option to defer the card marks, only for the purposes of testing and diagnostics. CMS and G1 continue to defer card marks. Potential performance concern related to single-threaded flushing of deferred card marks in the gc prologue will be addressed in the future.
Reviewed-by: never, johnc

Summary: What the title says.
Reviewed-by: ysr, jmasa

6580131: 3/4 CompiledMethodLoad events don't produce the expected extra notifications to describe inlining
Summary: Add support for additional implementation specific info to the JVM/TI CompiledMethodLoad event via the compile_info parameter.
Reviewed-by: never, ohair, tbell, tdeneau
Contributed-by: NVasanth Venkatachalam <vasanth.venkatachalam@amd.com>

6902115: G1:assert(ignore_max_completed||thread->is_Java_thread()||SafepointSynchronize::is_at_safepoint())
Summary: Remove invalid assert and mangle filler objects in TLABs that are being retired.
Reviewed-by: ysr, jmasa

Summary: Loop predication implementation
Reviewed-by: never, kvn

Reviewed-by: kvn, jrose