gcc/testsuite/gcc.dg/pr51990.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3
   4 int
   5 zzz (char *s1, char *s2, int len, int *q)
   6 {
   7   int z = 5;
   8   unsigned int i, b;
   9   struct s { char a[z]; };
  10   struct s x;
  11
  12   extern int foo (int, ...) __attribute__((pure));
  13
  14   for (i = 0; i < len; i++)
  15     s1[i] = s2[i];
  16
  17   b = z & 0x3;
  18
  19   len += (b == 0 ? 0 : 1) + z;
  20
  21   *q = len;
  22   return foo (z, x, x);
  23 }