73 struct SpillPlacement::Node {  struct in SpillPlacement
75   BlockFrequency BiasN;
77   BlockFrequency BiasP;
82   int Value;
84   typedef SmallVector<std::pair<BlockFrequency, unsigned>, 4> LinkVector;
88   LinkVector Links;
91   BlockFrequency SumLinkWeights;
94   bool preferReg() const {  in preferReg()
100   bool mustSpill() const {  in mustSpill()
109   void clear(const BlockFrequency &Threshold) {  in clear()
116   void addLink(unsigned b, BlockFrequency w) {  in addLink()
131   void addBias(BlockFrequency freq, BorderConstraint direction) {  in addBias()
149   bool update(const Node nodes[], const BlockFrequency &Threshold) {  in update()