gcc/testsuite/gcc.dg/pr27003.c

   1 /* { dg-do compile } */
   2 /* { dg-do run } */
   3 /* { dg-options "-Os" } */
   4
   5 unsigned int
   6 foo (unsigned int x)
   7 {
   8   unsigned int r = x;
   9   while (--x)
  10     r *= x;
  11   return r;
  12 }
  13
  14 unsigned long long
  15 bar (unsigned long long x)
  16 {
  17   unsigned long long r = x;
  18   while (--x)
  19     r *= x;
  20   return r;
  21 }
  22
  23 extern void abort (void);
  24
  25 int
  26 main (void)
  27 {
  28   if (foo (5) != 120 || bar (5) != 120)
  29     abort ();
  30   return 0;
  31 }