gcc/testsuite/gcc.dg/char-compare.c

   1 /* PR rtl-optimization/23241 */
   2 /* Origin: Josh Conner <jconner@apple.com> */
   3
   4 /* { dg-do run } */
   5 /* { dg-options "-O2" } */
   6
   7 extern void abort(void);
   8
   9 struct fbs {
  10   unsigned char uc;
  11 } fbs1 = {255};
  12
  13 void fn(struct fbs *fbs_ptr)
  14 {
  15   if ((fbs_ptr->uc != 255) && (fbs_ptr->uc != 0))
  16     abort();
  17 }
  18
  19 int main(void)
  20 {
  21   fn(&fbs1);
  22   return 0;
  23 }