lib/CodeGen/SpillPlacement.cpp

234     BlockFrequency Freq = BlockFrequencies[I->Number];
240       nodes[ib].addBias(Freq, I->Entry);
247       nodes[ob].addBias(Freq, I->Exit);
256     BlockFrequency Freq = BlockFrequencies[*I];
258       Freq += Freq;
263     nodes[ib].addBias(Freq, PrefSpill);
264     nodes[ob].addBias(Freq, PrefSpill);
284     BlockFrequency Freq = BlockFrequencies[Number];
285     nodes[ib].addLink(ob, Freq);
286     nodes[ob].addLink(ib, Freq);