gcc/testsuite/gcc.target/i386/ret-thunk-26.c

   1 /* PR target/r84530 */
   2 /* { dg-do run } */
   3 /* { dg-options "-Os -mfunction-return=thunk -fcf-protection=none" } */
   4
   5 struct S { int i; };
   6 __attribute__((const, noinline, noclone))
   7 struct S foo (int x)
   8 {
   9   struct S s;
  10   s.i = x;
  11   return s;
  12 }
  13
  14 int a[2048], b[2048], c[2048], d[2048];
  15 struct S e[2048];
  16
  17 __attribute__((noinline, noclone)) void
  18 bar (void)
  19 {
  20   int i;
  21   for (i = 0; i < 1024; i++)
  22     {
  23       e[i] = foo (i);
  24       a[i+2] = a[i] + a[i+1];
  25       b[10] = b[10] + i;
  26       c[i] = c[2047 - i];
  27       d[i] = d[i + 1];
  28     }
  29 }
  30
  31 int
  32 main ()
  33 {
  34   int i;
  35   bar ();
  36   for (i = 0; i < 1024; i++)
  37     if (e[i].i != i)
  38       __builtin_abort ();
  39   return 0;
  40 }