gcc/testsuite/gcc.dg/tls/pr58595.c

   1 /* PR target/58595 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2" } */
   4 /* { dg-additional-options "-fpic" { target fpic } } */
   5 /* { dg-add-options tls } */
   6 /* { dg-require-effective-target tls_runtime } */
   7 /* { dg-require-effective-target sync_int_long } */
   8
   9 struct S { unsigned long a, b; };
  10 __thread struct S s;
  11 void bar (unsigned long *);
  12
  13 __attribute__((noinline)) void
  14 foo (void)
  15 {
  16   int i;
  17   for (i = 0; i < 10; i++)
  18     __sync_fetch_and_add (&s.b, 1L);
  19 }
  20
  21 int
  22 main ()
  23 {
  24   s.b = 12;
  25   foo ();
  26   if (s.b != 22)
  27     __builtin_abort ();
  28   return 0;
  29 }