gcc/testsuite/gcc.c-torture/execute/loop-5.c

   1 void abort (void);
   2 void exit (int);
   3
   4 static int ap(int i);
   5 static void testit(void){
   6   int ir[4] = {0,1,2,3};
   7   int ix,n,m;
   8   n=1; m=3;
   9   for (ix=1;ix<=4;ix++) {
  10     if (n == 1) m = 4;
  11     else        m = n-1;
  12     ap(ir[n-1]);
  13     n = m;
  14   }
  15 }
  16
  17 static int t = 0;
  18 static int a[4];
  19
  20 static int ap(int i){
  21   if (t > 3)
  22     abort();
  23   a[t++] = i;
  24   return 1;
  25 }
  26
  27 int main(void)
  28 {
  29   testit();
  30   if (a[0] != 0)
  31     abort();
  32   if (a[1] != 3)
  33     abort();
  34   if (a[2] != 2)
  35     abort();
  36   if (a[3] != 1)
  37     abort();
  38   exit(0);
  39 }