3726 struct BitPart {  struct
3727   BitPart(Value *P, unsigned BW) : Provider(P) {  in BitPart()  function
3770 static const std::optional<BitPart> &
3772                 std::map<Value *, std::optional<BitPart>> &BPS, int Depth,  in collectBitParts()
3809       Result = BitPart(A->Provider, BitWidth);  in collectBitParts()
3811         if (A->Provenance[BitIdx] != BitPart::Unset &&  in collectBitParts()
3812             B->Provenance[BitIdx] != BitPart::Unset &&  in collectBitParts()
3816         if (A->Provenance[BitIdx] == BitPart::Unset)  in collectBitParts()
3847         P.insert(P.begin(), BitShift.getZExtValue(), BitPart::Unset);  in collectBitParts()
3850         P.insert(P.end(), BitShift.getZExtValue(), BitPart::Unset);  in collectBitParts()
3876           Result->Provenance[BitIdx] = BitPart::Unset;  in collectBitParts()
3887       Result = BitPart(Res->Provider, BitWidth);  in collectBitParts()
3892         Result->Provenance[BitIdx] = BitPart::Unset;  in collectBitParts()
3903       Result = BitPart(Res->Provider, BitWidth);  in collectBitParts()
3917       Result = BitPart(Res->Provider, BitWidth);  in collectBitParts()
3931       Result = BitPart(Res->Provider, BitWidth);  in collectBitParts()
3968       Result = BitPart(LHS->Provider, BitWidth);  in collectBitParts()
3985   Result = BitPart(V, BitWidth);  in collectBitParts()
4023   std::map<Value *, std::optional<BitPart>> BPS;  in recognizeBSwapOrBitReverseIdiom()
4030                 [](int8_t I) { return I == BitPart::Unset || 0 <= I; }) &&  in recognizeBSwapOrBitReverseIdiom()
4035   if (BitProvenance.back() == BitPart::Unset) {  in recognizeBSwapOrBitReverseIdiom()
4036     while (!BitProvenance.empty() && BitProvenance.back() == BitPart::Unset)  in recognizeBSwapOrBitReverseIdiom()
4057     if (BitProvenance[BitIdx] == BitPart::Unset) {  in recognizeBSwapOrBitReverseIdiom()