gcc/testsuite/gcc.c-torture/execute/pr51466.c

   1 /* PR tree-optimization/51466 */
   2
   3 extern void abort (void);
   4
   5 __attribute__((noinline, noclone)) int
   6 foo (int i)
   7 {
   8   volatile int v[4];
   9   int *p;
  10   v[i] = 6;
  11   p = (int *) &v[i];
  12   return *p;
  13 }
  14
  15 __attribute__((noinline, noclone)) int
  16 bar (int i)
  17 {
  18   volatile int v[4];
  19   int *p;
  20   v[i] = 6;
  21   p = (int *) &v[i];
  22   *p = 8;
  23   return v[i];
  24 }
  25
  26 __attribute__((noinline, noclone)) int
  27 baz (int i)
  28 {
  29   volatile int v[4];
  30   int *p;
  31   v[i] = 6;
  32   p = (int *) &v[0];
  33   *p = 8;
  34   return v[i];
  35 }
  36
  37 int
  38 main ()
  39 {
  40   if (foo (3) != 6 || bar (2) != 8 || baz (0) != 8 || baz (1) != 6)
  41     abort ();
  42   return 0;
  43 }