gcc/testsuite/gcc.dg/pr48022-1.c

   1 /* PR tree-optimization/48022 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -Wstrict-overflow" } */
   4
   5 int
   6 foo (const char *x)
   7 {
   8   unsigned long l = 1;
   9   const unsigned char *s = (const unsigned char *) (const char *) (x);
  10   int r = s[0] - ((const unsigned char *) (const char *) ("/"))[0];
  11   if (l > 0 && r == 0)
  12     r = (s[1] - ((const unsigned char *) (const char *) ("/"))[1]);
  13   return r;
  14 }