-- sdata.c --
extern char *name;
main()
{
        printf("%s\n",name);
}

 m32r-elf-gcc -c -msdata=use -O0 sdata.c

sdata.c: In function `main':
sdata.c:5: error: unrecognizable insn:
(insn 8 21 9 0 (set (reg:SI 27)
        (unspec [
                (const_int 0 [0x0])
            ] 2)) -1 (nil)
    (nil))
sdata.c:5: internal compiler error: in extract_insn, at recog.c:2083