1  /* { dg-options "-O2" } */
       2  
       3  #include <stdlib.h>
       4  
       5  volatile int flag;
       6  const int array_size = 10;
       7  int* array;
       8  int iterations = 10000000;
       9  
      10  #define BAR(num) \
      11  int __attribute__((noinline)) \
      12  bar##num (int i, int j) \
      13  { \
      14    if (i == 0) \
      15      return 2*num - 1; \
      16    else \
      17      return 2*num; \
      18  }
      19  
      20  BAR(1)
      21  BAR(2)
      22  BAR(3)
      23  BAR(4)
      24  BAR(5)
      25  BAR(6)
      26  BAR(7)
      27  BAR(8)
      28  BAR(9)
      29  BAR(10)
      30  BAR(11)
      31  BAR(12)
      32  BAR(13)
      33  BAR(14)
      34  BAR(15)
      35  BAR(16)
      36  BAR(17)
      37  BAR(18)
      38  BAR(19)
      39  
      40  int __attribute__((noinline))
      41  foo ()
      42  {
      43    switch (flag)
      44    {
      45  	case 1:
      46  		return bar1 (0, 0);
      47  	case 2:
      48  		return bar2 (0, 0);
      49  	case 3:
      50  		return bar3 (0, 0);
      51  	case 4:
      52  		return bar4 (0, 0);
      53  	case 5:
      54  		return bar5 (0, 0);
      55  	case 6:
      56  		return bar6 (0, 0);
      57  	case 7:
      58  		return bar7 (0, 0);
      59  	case 8:
      60  		return bar8 (0, 0);
      61  	case 9:
      62  		return bar9 (0, 0);
      63  	case 10:
      64  		return bar10 (0, 0);
      65  	case 11:
      66  		return bar11 (0, 0);
      67  	case 12:
      68  		return bar12 (0, 0);
      69  	case 13:
      70  		return bar13 (0, 0);
      71  	case 14:
      72  		return bar14 (0, 0);
      73  	case 15:
      74  		return bar15 (0, 0);
      75  	case 16:
      76  		return bar16 (0, 0);
      77  	case 17:
      78  		return bar17 (0, 0);
      79  	case 18:
      80  		return bar18 (0, 0);
      81  	default:
      82  		return bar19(0, 0);
      83    }
      84  }
      85  
      86  int
      87  main ()
      88  {
      89    flag = 0;
      90    array = calloc(array_size, sizeof(int));
      91    for (int i = 0, j = 0; i < iterations; ++i, j = (j + 1) % 10)
      92      array[j] = foo ();
      93  }