gcc/testsuite/gcc.dg/pr19340.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fschedule-insns2 -fsched2-use-superblocks" } */
   3 /* { dg-require-effective-target scheduling } */
   4
   5 extern double f (double x);
   6
   7 double g (int a)
   8 {
   9   int b, c, d, e = 0;
  10   double h;
  11
  12   for (d = 0; d < a; d++)
  13     for (c = 0; c < a; c++)
  14       b = 1;
  15
  16   h = (double) e / (double) a;
  17
  18   if (h)
  19     {
  20       h = 1.0 / h;
  21       h = f (h);
  22     }
  23   else
  24     h = 1.0;
  25
  26   return h;
  27 }