gistfile1.c

int main(int argc, char **argv)
{   
    struct list {
        void *next;
    } _op = {0}, *op = &_op;
    asm volatile("jmp *%0;":: "r"(*(void const*)op->next));
    return 0;
}
/*
 * $ gcc-mp-4.4 jmp.c 
 * jmp.c: In function 'main':
 * jmp.c:6: warning: dereferencing 'void *' pointer
 * jmp.c:6: internal compiler error: in gimplify_expr, at gimplify.c:7128
 * Please submit a full bug report,
 * with preprocessed source if appropriate.
 * See <http://gcc.gnu.org/bugs.html> for instructions.
 */