8166607: G1 needs klass_or_null_acquire Summary: Use acquire where needed, split refinment humongous and non to simplify. Reviewed-by: tschatzl, ehelin

8165287: fix compress intrinsics to produce correct results with avx512 Reviewed-by: kvn

8170039: Change UseAVX < 3 on SKX/KNL to not emit evex vector check Reviewed-by: kvn

8168396: Unexpected OOME in GcCauseTest02 and GcTest02 Reviewed-by: tschatzl, dfazunen

8169870: CDS: "assert(partition_size <= size()) failed: partition failed" on 32 bit JVM Summary: Exit the VM and report error if the second ReservedSpace() call also fails. Reviewed-by: cjplummer, sspitsyn, iklam

8170100: AArch64: Crash in C1-compiled code accessing References Reviewed-by: roland

8170098: AArch64: VM is extremely slow with JVMTI debugging enabled Reviewed-by: roland

8169941: CodeBlob::is_frame_complete_at() does not honor CodeOffsets::frame_never_safe Summary: CodeBlob::is_frame_complete_at() should always return false if _frame_complete_offset is set to CodeOffsets::frame_never_safe (-1). Reviewed-by: kvn, dlong

8169711: CDS does not patch entry trampoline if intrinsic method is disabled Summary: Always create interpreter method entries for intrinsified methods but replace them with vanilla entries if the intrinsic is disabled at runtime. Reviewed-by: kvn, iklam

8169901: AArch64: CompareAndExchange intrinsics clobber address register Reviewed-by: aph