gcc/testsuite/gcc.dg/pr87009.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-original" } */
   3 /* { dg-final { scan-tree-dump-times "return s \\^ x;|return x \\^ s;" 4 "original" } } */
   4
   5 int f1 (int x, int s)
   6 {
   7  return ~(~(x|s)|x)|~(~(x|s)|s);
   8 }
   9
  10 int f2 (int x, int s)
  11 {
  12  return ~(~(~x&s)&~(x&~s));
  13 }
  14
  15 int f3 (int x, int s)
  16 {
  17  return ~((x|~s)&(~x|s));
  18 }
  19
  20 int f4 (int x, int s)
  21 {
  22  return (x|~s)^(~x|s);
  23 }