if ((A == C && B == D) || (A == D && B == C))
return BinaryOperator::CreateXor(A, B);
}
+ // (A ^ B)^(A | B) -> A & B
+ if (match(Op0I, m_Xor(m_Value(A), m_Value(B))) &&
+ match(Op1I, m_Or(m_Value(C), m_Value(D)))) {
+ if ((A == C && B == D) || (A == D && B == C))
+ return BinaryOperator::CreateAnd(A, B);
+ }
+ // (A | B)^(A ^ B) -> A & B
+ if (match(Op0I, m_Or(m_Value(A), m_Value(B))) &&
+ match(Op1I, m_Xor(m_Value(C), m_Value(D)))) {
+ if ((A == C && B == D) || (A == D && B == C))
+ return BinaryOperator::CreateAnd(A, B);
+ }
// (A & B) ^ (A ^ B) -> (A | B)
if (match(Op0I, m_And(m_Value(A), m_Value(B))) &&
match(Op1I, m_Xor(m_Specific(A), m_Specific(B))))