8209651: better TLS poll for x64 C2 Reviewed-by: kvn

Added tag jdk-12+8 for changeset 492b366f8e57

8167314: Enable the check to detect duplicate provides in in GenModuleInfoSource Reviewed-by: lancea

8209062: Clean up G1MonitoringSupport Reviewed-by: phh, sangheki

8209061: Move G1 serviceability functionality to G1MonitoringSupport Reviewed-by: phh, sangheki

8209700: Remove HeapRegionSetBase::RegionSetKind for a more flexible approach Reviewed-by: kbarrett, phh

8209698: Remove "Pinned" from HeapRegionTraceType Reviewed-by: iklam

8208498: Put archive regions into a first-class HeapRegionSet Summary: Maintain archive regions in a HeapRegionSet like other region types. Reviewed-by: phh, sangheki

8209605: com/sun/jdi/BreakpointWithFullGC.java fails with ZGC Reviewed-by: sspitsyn, dholmes

8202342: [Graal] fromTonga/nsk/jvmti/unit/FollowReferences/followref003/TestDescription.java fails with "Location mismatch" errors Reviewed-by: sspitsyn, amenkov

8208658: Make CDS archived heap regions usable even if compressed oop encoding has changed Summary: Relocate and patch archive regions if necessary Reviewed-by: jiangli, tschatzl

8209783: AArch64: Combine Multiply and Neg operations in C2 Summary: Generate mneg instructions for a*(-b) or (-a)*b to save one instruction Reviewed-by: adinn Contributed-by: pengfei.li@arm.com

8209686: cleanup arguments to PhaseIdealLoop() constructor Reviewed-by: thartmann, kvn, pliden

8209839: [Backout] Backout JDK-8206467 Refactor G1ParallelCleaningTask into shared Reviewed-by: zgu

8209667: Explicit barriers for C1/LIR Reviewed-by: eosterlund, roland

8208172: SIGSEGV when owner of invokedynamic bootstrap method throws an exception - Symbol::increment_refcount()+0x0 Summary: table for resolution errors always expect non-null message string. Reviewed-by: dholmes, iklam

8208601: Introduce native oop barriers in C2 for OopHandle Reviewed-by: neliasso, kvn

8209801: Rename C1_WRITE_ACCESS and C1_READ_ACCESS decorators to ACCESS_READ and ACCESS_WRITE Reviewed-by: kbarrett, pliden

8209684: Intrinsics that assume some input non null should use GraphKit::must_be_not_null() Reviewed-by: kvn, thartmann

8209420: Track membars for volatile accesses so they can be properly optimized Reviewed-by: adinn, aph, thartmann

8209829: SpnegoUnknownMech.java does not contain the SpnegoUnknownMech class Reviewed-by: dholmes

8209826: Undefined reference to os::write after JDK-8209657 (filemap.hpp cleanup) Summary: include os_inline.hpp instead Reviewed-by: jiangli

8186186: GSSContext.isEstablished() can return true on error state Reviewed-by: weijun Contributed-by: weijun.wang@oracle.com

8209771: jdk.test.lib.Utils::runAndCheckException error Reviewed-by: dholmes

8209657: Refactor filemap.hpp to simplify integration with Serviceability Agent Summary: Added src/hotspot/share/include/cds.h Reviewed-by: ccheung, sspitsyn, jgeorge

8206467: Refactor G1ParallelCleaningTask into shared Summary: Refactored and moved G1ParllelCleaningTask to be shared among GCs Reviewed-by: rkennke, kbarrett

8209758: 2 classes with same name G1PrintCollectionSetClosure cause crash when logging is enabled Reviewed-by: tschatzl, kbarrett

8209689: Compiler.isGraalEnabled should not check jvmci.Compiler property Reviewed-by: kvn

8209624: [JVMCI] Invalidate nmethods instead of directly unloading them when the InstalledCode is dropped Reviewed-by: kvn

8206423: Use locking for cleaning ResolvedMethodTable Summary: ServiceThread is now in charge of cleaning ResolvedMethodTable entries Reviewed-by: gziemski, dholmes, coleenp

8209792: Remove ClassLoaderDataGraph::keep_alive_cld_do Summary: unnecessary Reviewed-by: zgu, tschatzl

8209738: Remove ClassLoaderDataGraph::*oops_do functions Summary: Make walking CLDG more consistent. Reviewed-by: dholmes, tschatzl