[aarch64-port-dev ] JDK 13 AArch64 issues to backport

[Andrew Haley]

On 6/19/19 5:37 PM, Andrew Dinn wrote:
> Am I supposed to backport them now or is anyone else going to step in?

First, please determine whether any of the first set are critical.

I can't see any that are:

  8215879: Aarch64: ReservedStackAccess may leave stack guard in inconsistent state

No: obscure runtime option

  8217368: AArch64: C2 recursive stack locking optimisation not triggered

No: not a correctness issue

  8209413: AArch64: NPE in clhsdb jstack command

No: debugging only

  8216989: CardTableBarrierSetAssembler::gen_write_ref_array_post_barrier() does not check for zero length on AARCH64

No: not a correctness issue

  8219993: AArch64: Compiled CI stubs are unsafely modified

No: theoretical memory-model issue, never seen in the wild

  8213134: AArch64: vector shift failed with MaxVectorSize=8

No: obscure runtime option

  8221658: aarch64: add necessary predicate for ubfx patterns
  8222785: aarch64: add necessary masking for immediate shift counts

No: don't get used anywhere in OpenJDK

  8219006: AArch64: Register corruption in slow subtype check

No: debug mode only

-- 
Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
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