[Bug regression/61516] [4.10 Regression]: build fails on auto-inc-dec.c or libgcc2.c with obvious patch

[hp at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61516

--- Comment #1 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
Also,

(gdb) p insn
$7 = (rtx) 0x7ffff7bc13c0
(gdb) pr
(insn/v 54 53 55 4 (set (reg/v/f:SI 50 [ s2 ])
        (plus:SI (reg/v/f:SI 50 [ s2 ])
            (const_int 1 [0x1])))
/expvol/pp_slask/hp/break0615/tmp/break0615/gcc/libgcc/libgcc2.c:2099 74
{*addsi3_non\
_v32}
     (nil))