8140588: Internal Error: gc/g1/ptrQueue.hpp:126 assert(_index == _sz) failed: invariant: queues are empty when activated
Summary: Re-check queue active state before updating
Reviewed-by: pliden, kbarrett, mdoerr

8169177: AArch64: SIGSEGV when "-XX:+ZeroTLAB" is specified along with GC options
Reviewed-by: aph
Contributed-by: kavitha.natarajan@linaro.org

8164113: AArch64: follow-up the fix for 8161598
Reviewed-by: dlong

8149418: AArch64: replace tst+br with tbz instruction when tst's constant operand is 2 power
Summary: replace tst+br with tbz instruction when tst's constant operand is 2 power
Reviewed-by: aph

8146709: AArch64: Incorrect use of ADRP for byte_map_base
Reviewed-by: roland

8146891: AArch64 needs patch for 8032463
Reviewed-by: kvn

8143014: Access PtrQueue member offsets through derived classes
Summary: Moved accessors to derived classes and updated callers.
Reviewed-by: tschatzl, jmasa, twisti

Merge

8079792: GC directory structure cleanup
Reviewed-by: brutisso, stefank, david

8079564: Use FP register as proper frame pointer in JIT compiled code on aarch64
Summary: Add support for PreserveFramePointer for debug/profile
Reviewed-by: kvn

8072129: [AARCH64] missing fix for 8066900
Summary: add 8066900 fix to arm64 code.
Reviewed-by: kvn

8068053: AARCH64: C1 and C2 compilers
Summary: add src/cpu/aarch64/vm/* C1 and C2 files
Reviewed-by: kvn, roland