gcc/testsuite/gcc.dg/torture/20131115-1.c

   1 /* { dg-do run } */
   2
   3 struct S { int i; };
   4 __attribute__((const, noinline, noclone))
   5 struct S foo (int x)
   6 {
   7   struct S s;
   8   s.i = x;
   9   return s;
  10 }
  11
  12 int a[2048], b[2048], c[2048], d[2048];
  13 struct S e[2048];
  14
  15 __attribute__((noinline, noclone)) void
  16 bar (void)
  17 {
  18   int i;
  19   for (i = 0; i < 1024; i++)
  20     {
  21       e[i] = foo (i);
  22       a[i+2] = a[i] + a[i+1];
  23       b[10] = b[10] + i;
  24       c[i] = c[2047 - i];
  25       d[i] = d[i + 1];
  26     }
  27 }
  28
  29 int
  30 main ()
  31 {
  32   int i;
  33   bar ();
  34   for (i = 0; i < 1024; i++)
  35     if (e[i].i != i)
  36       __builtin_abort ();
  37   return 0;
  38 }