gcc/testsuite/gcc.dg/torture/pr111445.c

   1 /* { dg-do run } */
   2
   3 extern void abort (void);
   4 short a, b;
   5 unsigned char c = 255;
   6 unsigned cnt;
   7 void __attribute__((noipa))
   8 check (int x)
   9 {
  10   if (x != 0)
  11     abort ();
  12   cnt++;
  13 }
  14 int main()
  15 {
  16   int d;
  17   unsigned char e;
  18   d = 0;
  19   for (; a >= 0; a--) {
  20     int *f = &d;
  21     *f = c;
  22   }
  23   e = 0;
  24   for (; (unsigned char)(d - 255) + e <= 1; e++)
  25     check (b);
  26   if (cnt != 2)
  27     abort ();
  28   return 0;
  29 }