1 /* { dg-do compile } */
2 /* { dg-options "-O2 -fdump-tree-reassoc1" } */
main(int a,int b,int c,int d)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