[Bug c/56164] avr-gcc 4.7.2 fail with __flash keyword

[gjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56164



--- Comment #3 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2013-01-31 
20:25:20 UTC ---

Created attachment 29322

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29322

Small an valis test case



Output with avr-gcc 4.7.2:



avr-gcc -S -mmcu=atmega8  -Os foo.c

foo.c: In function 'psy':

foo.c:18:1: error: unable to find a register to spill in class 'POINTER_REGS'

 }

 ^

foo.c:18:1: error: this is the insn:

(insn 26 25 28 2 (set (reg:SF 59 [ D.1396 ])

        (unspec:SF [

                (reg:HI 30 r30)

                (const_int 0 [0])

            ] UNSPEC_LPM)) foo.c:9 22 {load_sf}

     (expr_list:REG_DEAD (reg:HI 30 r30)

        (nil)))

foo.c:18:1: internal compiler error: in spill_failure, at reload1.c:2124

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