gcc/testsuite/gcc.dg/pr68841.c

   1 /* { dg-do run } */
   2 /* { dg-options "-Og -fif-conversion -flive-range-shrinkage -fpeel-loops -frerun-cse-after-loop" } */
   3
   4 static inline int
   5 foo (int *x, int y)
   6 {
   7   int z = *x;
   8   while (y > z)
   9     z *= 2;
  10   return z;
  11 }
  12
  13 int
  14 main ()
  15 {
  16   int i;
  17   for (i = 1; i < 17; i++)
  18     {
  19       int j;
  20       int k;
  21       j = foo (&i, 7);
  22       if (i >= 7)
  23         k = i;
  24       else if (i >= 4)
  25         k = 8 + (i - 4) * 2;
  26       else if (i == 3)
  27         k = 12;
  28       else
  29         k = 8;
  30       if (j != k)
  31         __builtin_abort ();
  32     }
  33   return 0;
  34 }