8075210: Refactor strong root processing in order to allow G1 to evolve separately from GenCollectedHeap
Summary: Create a G1RootProcessor and move SharedHeap root processing to GenCollectedHeap
Reviewed-by: brutisso, tschatzl, ehelin

Reviewed-by: tschatzl, mgerdin, ecaspole

Reviewed-by: mgerdin, brutisso

Reviewed-by: stefank, tschatzl
Contributed-by: marcus.larsson@oracle.com

Summary: Pass on the static type G1ParPushHeapRSClosure to allow oop_iterate devirtualization
Reviewed-by: jmasa, kbarrett

Reviewed-by: mchung, dfuchs, ahgross, brutisso

8062063: Usage of UseHugeTLBFS, UseLargePagesInMetaspace and huge SurvivorAlignmentInBytes cause crashes in CMBitMapClosure::do_bit
Summary: Making sure committed memory is cleared when re-committed, even if using large pages.
Reviewed-by: jwilhelm, tschatzl

Reviewed-by: hseigel, lfoltan, coleenp, ahgross

Summary: bad assumption on graph shape in CastIINode::Value if that part of the graph is becoming dead.
Reviewed-by: kvn

Summary: range check smearing uncorrectly adjust first range check in a list of range checks to cover all of them
Reviewed-by: jrose, kvn, iveresov

Summary: -XX:+TraceDeoptimization tries to print realloc'ed objects even when there are none
Reviewed-by: kvn

Summary: The new code in 8u backport should guard the execution of the following code instead of return.
Reviewed-by: iveresov

Summary: Check for safepoint and block during EA Connection graph construction.
Reviewed-by: roland, vlivanov, shade

Summary: Don't remove KILL projections if their "defining" nodes have SCMemProj projection (memory side effects).
Reviewed-by: iveresov, roland

Reviewed-by: hseigel, ccheung

Reviewed-by: jrose, acorn, vlivanov

Reviewed-by: jrose, acorn, vlivanov

Summary: code in PhaseIterGVN::add_users_to_worklist() from 8054478 makes incorrect assumption about graph shape
Reviewed-by: iveresov

Summary: dead backbranch in main loop results in erroneous array access
Reviewed-by: kvn, iveresov

Summary: Open compilation log files in write-mode and close before deletion attempt.
Reviewed-by: vlivanov

Summary: OOM during reallocation of scalar replaced objects in deoptimization causes crashes
Reviewed-by: kvn, jrose

Reviewed-by: coleenp, hseigel, poonam

Summary: PhaseIdealLoop::split_if_with_blocks_post() shoulnd't reorder range checks adjusted by range check smearing
Reviewed-by: kvn, jrose

Summary: in FileMapInfo::fail_continue do not set UseSharedSpaces = false
Reviewed-by: dholmes, ccheung

Reviewed-by: kvn, roland

Summary: Moved allocation context update from remark to the cleanup phase.
Reviewed-by: mgerdin, jmasa

Summary: Added a G1CollectorPolicyExt where it is possible to extend the class.
Reviewed-by: sjohanss, tschatzl

Reviewed-by: coleenp, ccheung

Summary: note all MemberNames created on internal list for adjusting method entries.
Reviewed-by: sspitsyn, dcubed, lfoltan

Summary: Ignore non-instance Klasses in the subclass hierarchy.
Reviewed-by: kvn, iignatyev, jrose

Reviewed-by: sla, stefank

Reviewed-by: dcubed, pnauman, ctornqvi, dholmes, mschoene
Contributed-by: gerald.thornbrugh@oracle.com

Reviewed-by: dcubed, pnauman, ctornqvi, dholmes, mschoene
Contributed-by: gerald.thornbrugh@oracle.com

Summary: Read _top before _gc_time_stamp in saved_mark_word() with LoadLoad order to ensure we get a consistent view
Reviewed-by: brutisso, dcubed, dholmes, stefank

Reviewed-by: kvn, roland, coleenp, mgerdin

8056071: compiler/whitebox/IsMethodCompilableTest.java fails with 'method() is not compilable after 3 iterations'
Summary: Always use MDO if valid and always compile trivial methods with C1 if available.
Reviewed-by: kvn, iveresov

Summary: Signed bitfield size y can only have (1 << y)-1 values.
Reviewed-by: shade, dholmes, jrose, ctornqvi, gtriantafill

8062036: ConcurrentMarkThread::slt may be invoked before ConcurrentMarkThread::makeSurrogateLockerThread causing intermittent crashes
Summary: Suppress gc_alot during VM init, improve error for SLT uninitialized.
Reviewed-by: jmasa, brutisso, tschatzl

Summary: Change CDS non-fatal preloading errors to warnings.
Reviewed-by: minqi, mseledtsov, coleenp

Summary: backout fix 8050808 which caused this regression and as requested.
Reviewed-by: hseigel