gcc/testsuite/gcc.dg/tree-ssa/forwprop-24.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-cddce1" } */
   3
   4 void bar (void);
   5 unsigned short
   6 foo (unsigned char x, unsigned short y)
   7 {
   8   unsigned char t = (unsigned char)((x & 1) ^ ((unsigned char)y & 1));
   9   if (t == 1)
  10     bar ();
  11   return y;
  12 }
  13
  14 /* We should have combined this to require only one bitwise and
  15    as in (x ^ (char) y) & 1.  */
  16
  17 /* { dg-final { scan-tree-dump-times " & " 1 "cddce1" } } */
  18 /* { dg-final { cleanup-tree-dump "cddce1" } } */