Lines Matching refs:PH
397 // loop before PH along with adding a preheader for the cloned loop. Then
398 // update PH to point to the newly added preheader.
665 BasicBlock *PH = L->getLoopPreheader();
666 if (!PH) {
777 // rely on PH having a predecessor.)
778 if (!PH->getSinglePredecessor() || &*PH->begin() != PH->getTerminator())
779 SplitBlock(PH, PH->getTerminator(), DT, LI);