gcc/testsuite/gcc.dg/tls/opt-11.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target tls_runtime } */
   3
   4 extern void abort (void);
   5 extern void *memset (void *, int, __SIZE_TYPE__);
   6
   7 struct A
   8 {
   9   char pad[48];
  10   int i;
  11   int pad2;
  12   int j;
  13 };
  14 __thread struct A a;
  15
  16 int *
  17 __attribute__((noinline))
  18 foo (void)
  19 {
  20   return &a.i;
  21 }
  22
  23 int
  24 main (void)
  25 {
  26   int *p = foo ();
  27   memset (&a, 0, sizeof (a));
  28   a.i = 6;
  29   a.j = 8;
  30   if (p[0] != 6 || p[1] != 0 || p[2] != 8)
  31     abort ();
  32   return 0;
  33 }