599       for (auto ChainPred : HotChains) {  in mergeChainPairs()  local
601         for (auto EdgeIter : ChainPred->edges()) {  in mergeChainPairs()
605           if (ChainPred == ChainSucc)  in mergeChainPairs()
609           if (ChainPred->numBlocks() + ChainSucc->numBlocks() >= MaxChainSize)  in mergeChainPairs()
613           auto CurGain = getBestMergeGain(ChainPred, ChainSucc, ChainEdge);  in mergeChainPairs()
619                compareChainPairs(ChainPred, ChainSucc, BestChainPred,  in mergeChainPairs()
622             BestChainPred = ChainPred;  in mergeChainPairs()
684   MergeGainTy getBestMergeGain(Chain *ChainPred, Chain *ChainSucc,  in getBestMergeGain()  argument
686     if (Edge->hasCachedMergeGain(ChainPred, ChainSucc)) {  in getBestMergeGain()
687       return Edge->getCachedMergeGain(ChainPred, ChainSucc);  in getBestMergeGain()
692     auto EdgePP = ChainPred->getEdge(ChainPred);  in getBestMergeGain()
706       if (Offset == 0 || Offset == ChainPred->blocks().size())  in getBestMergeGain()
709       auto BB = ChainPred->blocks()[Offset - 1];  in getBestMergeGain()
716             computeMergeGain(ChainPred, ChainSucc, Jumps, Offset, MergeType));  in getBestMergeGain()
722         computeMergeGain(ChainPred, ChainSucc, Jumps, 0, MergeTypeTy::X_Y));  in getBestMergeGain()
728         if (SrcBlock->CurChain != ChainPred)  in getBestMergeGain()
737         if (DstBlock->CurChain != ChainPred)  in getBestMergeGain()
745     if (ChainPred->blocks().size() <= ChainSplitThreshold) {  in getBestMergeGain()
746       for (size_t Offset = 1; Offset < ChainPred->blocks().size(); Offset++) {  in getBestMergeGain()
754     Edge->setCachedMergeGain(ChainPred, ChainSucc, Gain);  in getBestMergeGain()
762   MergeGainTy computeMergeGain(const Chain *ChainPred, const Chain *ChainSucc,  in computeMergeGain()  argument
766     auto MergedBlocks = mergeBlocks(ChainPred->blocks(), ChainSucc->blocks(),  in computeMergeGain()
770     if ((ChainPred->isEntry() || ChainSucc->isEntry()) &&  in computeMergeGain()
775     auto NewGainScore = extTSPScore(MergedBlocks, Jumps) - ChainPred->score();  in computeMergeGain()