gcc/testsuite/gcc.dg/tree-ssa/reassoc-11.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-reassoc1" } */
   3 int main(int a, int b, int c, int d)
   4 {
   5   /* All the xor's cancel each other out, leaving 0  */
   6   int e = (a ^ b) ^ (c ^ d);
   7   int f = (c ^ a) ^ (b ^ d);
   8   return e ^ f;
   9 }
  10 /* { dg-final { scan-tree-dump-times "= 0" 1 "reassoc1"} } */
  11 /* { dg-final { cleanup-tree-dump "reassoc1" } } */