Transforms/InstCombine/InstCombineAndOrXor.cpp

639   Value *R11,*R12;
641   if (decomposeBitTestICmp(RHS, RHSCC, R11, R12, R2)) {
643       A = R11; D = R12;
644     } else if (R12 == L11 || R12 == L12 || R12 == L21 || R12 == L22) {
645       A = R12; D = R11;
651     if (!match(R1, m_And(m_Value(R11), m_Value(R12)))) {
655       R12 = Constant::getAllOnesValue(R1->getType());
659       A = R11; D = R12; E = R2; ok = true;
660     } else if (R12 == L11 || R12 == L12 || R12 == L21 || R12 == L22) {
661       A = R12; D = R11; E = R2; ok = true;
671     if (!match(R2, m_And(m_Value(R11), m_Value(R12)))) {
673       R12 = Constant::getAllOnesValue(R2->getType());
677       A = R11; D = R12; E = R1; ok = true;
678     } else if (R12 == L11 || R12 == L12 || R12 == L21 || R12 == L22) {
679       A = R12; D = R11; E = R1; ok = true;