gcc/testsuite/gcc.dg/tls/pr78796.c

   1 /* PR target/78796 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2" } */
   4 /* { dg-additional-options "-mcmodel=large" { target aarch64-*-* } } */
   5 /* { dg-require-effective-target tls } */
   6 /* { dg-add-options tls } */
   7
   8 struct S { int a, b, c, d, e; };
   9 struct S t;
  10 __thread struct S s;
  11
  12 __attribute__((used, noinline, noclone)) void
  13 foo (int *x, int *y)
  14 {
  15   asm volatile ("" : : "g" (x), "g" (y) : "memory");
  16   if (*x != 1 || *y != 2)
  17     __builtin_abort ();
  18 }
  19
  20 __attribute__((used, noinline, noclone)) void
  21 bar (void)
  22 {
  23   foo (&t.c, &s.c);
  24 }
  25
  26 int
  27 main ()
  28 {
  29   t.c = 1;
  30   s.c = 2;
  31   bar ();
  32   return 0;
  33 }