[Bug target/63521] New: The AArch64 backend doesn't define REG_ALLOC_ORDER.

[ramana at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63521

            Bug ID: 63521
           Summary: The AArch64 backend doesn't define REG_ALLOC_ORDER.
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ramana at gcc dot gnu.org

Andrew Pinski reported that we have not defined REG_ALLOC_ORDER for the AArch64
backend. It would be useful during spill cost computations for this to be
defined appropriately