Transforms/InstCombine/InstCombineCompares.cpp

2945     ConstantInt *Cst1;
2948          match(Op1, m_And(m_Value(B), m_ConstantInt(Cst1)))) ||
2950          match(Op0, m_And(m_Value(B), m_ConstantInt(Cst1))) &&
2952       APInt Pow2 = Cst1->getValue() + 1;
2961     if ((match(Op0, m_OneUse(m_LShr(m_Value(A), m_ConstantInt(Cst1)))) &&
2962          match(Op1, m_OneUse(m_LShr(m_Value(B), m_Specific(Cst1))))) ||
2963         (match(Op0, m_OneUse(m_AShr(m_Value(A), m_ConstantInt(Cst1)))) &&
2964          match(Op1, m_OneUse(m_AShr(m_Value(B), m_Specific(Cst1)))))) {
2965       unsigned TypeBits = Cst1->getBitWidth();
2966       unsigned ShAmt = (unsigned)Cst1->getLimitedValue(TypeBits);
2983         match(Op1, m_ConstantInt(Cst1)) &&
2994         APInt CmpV = Cst1->getValue().zext(ASize);