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