6 #define CONCAT1(s, n) s##n
7 #define CONCAT(s, n) CONCAT1(s, n)
9 __thread int CONCAT (v, N) = 4;
12 CONCAT (tlsmod17a, N) (void)
14 int *p = &CONCAT (v, N);
15 /* GCC assumes &var is never NULL, add optimization barrier. */
16 asm volatile ("" : "+r" (p));
17 if (p == NULL || *p != 4)
19 printf ("fail %d %p\n", N, p);