3505   auto checkOneUse = [checkUses](SDValue Op,  in matchBitExtract()  local
3514   auto peekThroughOneUseTruncation = [checkOneUse](SDValue V) {  in matchBitExtract()
3515     if (V->getOpcode() == ISD::TRUNCATE && checkOneUse(V)) {  in matchBitExtract()
3525   auto matchPatternA = [checkOneUse, peekThroughOneUseTruncation, &NBits,  in matchBitExtract()
3528     if (Mask->getOpcode() != ISD::ADD || !checkOneUse(Mask))  in matchBitExtract()
3535     if (M0->getOpcode() != ISD::SHL || !checkOneUse(M0))  in matchBitExtract()
3552   auto matchPatternB = [checkOneUse, isAllOnes, peekThroughOneUseTruncation,  in matchBitExtract()
3555     if (Mask.getOpcode() != ISD::XOR || !checkOneUse(Mask))  in matchBitExtract()
3562     if (M0->getOpcode() != ISD::SHL || !checkOneUse(M0))  in matchBitExtract()
3595   auto matchPatternC = [checkOneUse, peekThroughOneUseTruncation, &NegateNBits,  in matchBitExtract()
3601     if (Mask.getOpcode() != ISD::SRL || !checkOneUse(Mask))  in matchBitExtract()
3608     if (!checkOneUse(M1))  in matchBitExtract()
3623   auto matchPatternD = [checkOneUse, checkTwoUse, canonicalizeShiftAmt,  in matchBitExtract()
3642     if (!checkOneUse(N0, AllowExtraUses) || !checkTwoUse(N1, AllowExtraUses))  in matchBitExtract()