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

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target tls_runtime } */
   3 /* { dg-add-options tls } */
   4
   5 __extension__ typedef __SIZE_TYPE__ size_t;
   6
   7 extern void abort (void);
   8 extern void *memset (void *, int, size_t);
   9
  10 struct A
  11 {
  12   char pad[48];
  13   int i;
  14   int pad2;
  15   int j;
  16 };
  17 __thread struct A a;
  18
  19 int *
  20 __attribute__((noinline))
  21 foo (void)
  22 {
  23   return &a.i;
  24 }
  25
  26 int
  27 main (void)
  28 {
  29   int *p = foo ();
  30   memset (&a, 0, sizeof (a));
  31   a.i = 6;
  32   a.j = 8;
  33   if (p[0] != 6 || p[1] != 0 || p[2] != 8)
  34     abort ();
  35   return 0;
  36 }