8201185: AARCH64: bfm instruction encoding hits assert on zero register Reviewed-by: dsamersoff

8199735: Mark word updates need to use Access API Reviewed-by: shade, eosterlund

8201242: Include source file/line number when reporting native call stack on supported platforms Summary: Added source file/line number to native call stack reporting on supported platforms Reviewed-by: adinn, stuefe, dcubed

8201167: Remove MacroAssembler::cmp_heap_oop on x86 Reviewed-by: kvn, tschatzl

8201171: Cleanup in g1CollectedHeap, change CamelCase to snake_case Reviewed-by: sjohanss, tschatzl

8200697: Add utility for spin wait with fallback to yield/sleep Summary: Added SpinYield utility class. Reviewed-by: dcubed, coleenp, dholmes Contributed-by: kim.barrett@oracle.com, robbin.ehn@oracle.com

Merge

8198908: Add JVM support for preview features Summary: Add new major and minor version checks Reviewed-by: dholmes, lfoltan

8201136: Move GC flags from globals.hpp to GC specific files Reviewed-by: sjohanss, shade, rehn

8201227: Add ALL_GCS_ONLY Reviewed-by: sjohanss, shade, rehn

8200169: Flatten G1Allocator class hierarchy Reviewed-by: tschatzl, sangheki

8201213: Remove INCLUDE_ALL_GCS from memset_with_concurrent_readers Reviewed-by: kbarrett

8201212: Remove INCLUDE_ALL_GCS from OopStorage files Reviewed-by: kbarrett

8200737: Move GC code out of Arguments::check_vm_args_consistency into GCArguments Reviewed-by: sjohanss, pliden

8200736: Move CMSGCStats to the cms directory Reviewed-by: sjohanss, tschatzl

8200735: Move CMS specific code from binaryTreeDictionary and freeList to CMS files Reviewed-by: shade, adinn