[Bug target/52506] New: [avr]: XMEGA: Wrong order of save/restore of RAMPX/Y/Z/D SFRs in ISR pro-/epilogue

[gjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52506

             Bug #: 52506
           Summary: [avr]: XMEGA: Wrong order of save/restore of
                    RAMPX/Y/Z/D SFRs in ISR pro-/epilogue
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: g...@gcc.gnu.org


For XMEGA devices with more than 64 KiB of RAM, the RAMPX, RAMPY, RAMPZ, RAMPD
special function registers are saved/restored in ISR if they might be used or
have an effect on the ISR code's memory accesses.

These save/restores are in the wrong order.