[Bug other/63630] [5.0 Regression] ICE: in spill_failure, at reload1.c:2122. unable to find a register to spill in class 'POINTER_REGS'

[gjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63630

Georg-Johann Lay <gjl at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[5.0 Regression] internal   |[5.0 Regression] ICE: in
                   |compiler error: Spill fail  |spill_failure, at
                   |with invalid register       |reload1.c:2122. unable to
                   |                            |find a register to spill in
                   |                            |class 'POINTER_REGS'

--- Comment #1 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
I misread the dumps.  "r1" is an ordinary variable, not hard reg r1.  Hence
this PR is similar to the other dozens of register allocator flaws for avr
(PR56183).