+void SUnit::biasCriticalPath() {
+ if (NumPreds < 2)
+ return;
+
+ SUnit::pred_iterator BestI = Preds.begin();
+ unsigned MaxDepth = BestI->getSUnit()->getDepth();
+ for (SUnit::pred_iterator I = std::next(BestI), E = Preds.end(); I != E;
+ ++I) {
+ if (I->getKind() == SDep::Data && I->getSUnit()->getDepth() > MaxDepth)
+ BestI = I;
+ }
+ if (BestI != Preds.begin())
+ std::swap(*Preds.begin(), *BestI);
+}
+
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)