Lines Matching refs:PH
447 // loop before PH along with adding a preheader for the cloned loop. Then
448 // update PH to point to the newly added preheader.
647 BasicBlock *PH = L->getLoopPreheader();
753 // rely on PH having a predecessor.)
754 if (!PH->getSinglePredecessor() || &*PH->begin() != PH->getTerminator())
755 SplitBlock(PH, PH->getTerminator(), DT, LI);
