extern int ok (int); extern void exit (); static int gen_x86_64_shrd (int); static int gen_x86_64_shrd(int a __attribute__ ((__unused__))) { return 0; } extern int gen_x86_shrd_1 (int); extern void ix86_split_ashr (int); void ix86_split_ashr (int mode) { (mode != 0 ? ok : gen_x86_64_shrd) (0); } volatile int one = 1; int main (void) { ix86_split_ashr (one); return 1; } int ok (int i) { exit (i); }