3494   SDValue NBits;  in matchBitExtract()  local
3525   auto matchPatternA = [checkOneUse, peekThroughOneUseTruncation, &NBits,  in matchBitExtract()
3539     NBits = M0->getOperand(1);  in matchBitExtract()
3553                         &NBits, &NegateNBits](SDValue Mask) -> bool {  in matchBitExtract()
3567     NBits = M0->getOperand(1);  in matchBitExtract()
3574   auto canonicalizeShiftAmt = [&NBits, &NegateNBits](SDValue ShiftAmt,  in matchBitExtract()
3576     NBits = ShiftAmt;  in matchBitExtract()
3579     if (NBits.getOpcode() == ISD::TRUNCATE)  in matchBitExtract()
3580       NBits = NBits.getOperand(0);  in matchBitExtract()
3583     if (NBits.getOpcode() != ISD::SUB)  in matchBitExtract()
3585     auto *V0 = dyn_cast<ConstantSDNode>(NBits.getOperand(0));  in matchBitExtract()
3588     NBits = NBits.getOperand(1);  in matchBitExtract()
3675   NBits = CurDAG->getNode(ISD::TRUNCATE, DL, MVT::i8, NBits);  in matchBitExtract()
3676   insertDAGNode(*CurDAG, SDValue(Node, 0), NBits);  in matchBitExtract()
3686   NBits = SDValue(CurDAG->getMachineNode(TargetOpcode::INSERT_SUBREG, DL,  in matchBitExtract()
3687                                          MVT::i32, ImplDef, NBits, SRIdxVal),  in matchBitExtract()
3689   insertDAGNode(*CurDAG, SDValue(Node, 0), NBits);  in matchBitExtract()
3697     NBits = CurDAG->getNode(ISD::SUB, DL, MVT::i32, BitWidthC, NBits);  in matchBitExtract()
3698     insertDAGNode(*CurDAG, SDValue(Node, 0), NBits);  in matchBitExtract()
3705       NBits = CurDAG->getNode(ISD::ANY_EXTEND, DL, NVT, NBits);  in matchBitExtract()
3706       insertDAGNode(*CurDAG, SDValue(Node, 0), NBits);  in matchBitExtract()
3709     SDValue Extract = CurDAG->getNode(X86ISD::BZHI, DL, NVT, X, NBits);  in matchBitExtract()
3738   SDValue Control = CurDAG->getNode(ISD::SHL, DL, MVT::i32, NBits, C8);  in matchBitExtract()