gcc/testsuite/gcc.dg/Warray-bounds-8.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -Wall" } */
   3 /* based on PR 43833 */
   4
   5 extern unsigned char data[5];
   6
   7 unsigned char
   8 foo (char *str)
   9 {
  10   int i, j;
  11   unsigned char c = 0;
  12
  13   for (i = 0; i < 8; i++)
  14     {
  15       j = i * 5;
  16       if ((j % 8) > 3)
  17         c |= data[(j / 8) + 1];
  18     }
  19   return c;
  20 }