2845 struct BitPart {  struct
2846   BitPart(Value *P, unsigned BW) : Provider(P) {  in BitPart()  function
2889 static const Optional<BitPart> &
2891                 std::map<Value *, Optional<BitPart>> &BPS, int Depth,  in collectBitParts()
2928       Result = BitPart(A->Provider, BitWidth);  in collectBitParts()
2930         if (A->Provenance[BitIdx] != BitPart::Unset &&  in collectBitParts()
2931             B->Provenance[BitIdx] != BitPart::Unset &&  in collectBitParts()
2935         if (A->Provenance[BitIdx] == BitPart::Unset)  in collectBitParts()
2966         P.insert(P.begin(), BitShift.getZExtValue(), BitPart::Unset);  in collectBitParts()
2969         P.insert(P.end(), BitShift.getZExtValue(), BitPart::Unset);  in collectBitParts()
2995           Result->Provenance[BitIdx] = BitPart::Unset;  in collectBitParts()
3006       Result = BitPart(Res->Provider, BitWidth);  in collectBitParts()
3011         Result->Provenance[BitIdx] = BitPart::Unset;  in collectBitParts()
3022       Result = BitPart(Res->Provider, BitWidth);  in collectBitParts()
3036       Result = BitPart(Res->Provider, BitWidth);  in collectBitParts()
3050       Result = BitPart(Res->Provider, BitWidth);  in collectBitParts()
3087       Result = BitPart(LHS->Provider, BitWidth);  in collectBitParts()
3104   Result = BitPart(V, BitWidth);  in collectBitParts()
3146   std::map<Value *, Optional<BitPart>> BPS;  in recognizeBSwapOrBitReverseIdiom()
3153                 [](int8_t I) { return I == BitPart::Unset || 0 <= I; }) &&  in recognizeBSwapOrBitReverseIdiom()
3157   if (BitProvenance.back() == BitPart::Unset) {  in recognizeBSwapOrBitReverseIdiom()
3158     while (!BitProvenance.empty() && BitProvenance.back() == BitPart::Unset)  in recognizeBSwapOrBitReverseIdiom()
3179     if (BitProvenance[BitIdx] == BitPart::Unset) {  in recognizeBSwapOrBitReverseIdiom()