Error's format

[Liza Atkin]

Hello!
I got an error of the next format. Could anyone explain to me what is the
problem or
at least where I can read about how I can understand this format:

test.c:15: error: unrecognizable insn:
(insn 69 68 44 0 test.c:12 (set (reg:SI 0 r0)
        (mem:SI (plus:SI (reg:SI 0 r0)
                (const_int -3 [0xfffffffd])) [0 S1 A32])) -1 (nil)
    (nil))


Regards,
   Liza