Lines Matching defs:DestBB

423   bool canMergeBlocks(const BasicBlock *BB, const BasicBlock *DestBB) const;
425   bool isMergingEmptyBlockProfitable(BasicBlock *BB, BasicBlock *DestBB,
908   BasicBlock *DestBB = BI->getSuccessor(0);
909   if (DestBB == BB)
912   if (!canMergeBlocks(BB, DestBB))
913     DestBB = nullptr;
915   return DestBB;
948     BasicBlock *DestBB = findDestBlockOfMergeableEmptyBlock(BB);
949     if (!DestBB ||
950         !isMergingEmptyBlockProfitable(BB, DestBB, Preheaders.count(BB)))
960                                                    BasicBlock *DestBB,
976         llvm::is_contained(successors(Pred), DestBB))
982   // of PHIs in DestBB. In such case, merging BB and DestBB would cause ISel to
1004   // value for the PHIs in the DestBB, we consider them together. In such
1007   if (!isa<PHINode>(DestBB->begin()))
1013   // DestBB are the same as the ones from BB.
1014   for (BasicBlock *DestBBPred : predecessors(DestBB)) {
1018     if (llvm::all_of(DestBB->phis(), [&](const PHINode &DestPN) {
1036         DestBB == findDestBlockOfMergeableEmptyBlock(SameValueBB))
1043 /// Return true if we can merge BB into DestBB if there is a single
1047                                     const BasicBlock *DestBB) const {
1054       if (UI->getParent() != DestBB || !isa<PHINode>(UI))
1056       // If User is inside DestBB block and it is a PHINode then check
1059       if (UI->getParent() == DestBB) {
1071   // If BB and DestBB contain any common predecessors, then the phi nodes in BB
1072   // and DestBB may have conflicting incoming values for the block.  If so, we
1074   const PHINode *DestBBPN = dyn_cast<PHINode>(DestBB->begin());
1088   // Walk the preds of DestBB.
1092       for (const PHINode &PN : DestBB->phis()) {
1131   BasicBlock *DestBB = BI->getSuccessor(0);
1134                     << *BB << *DestBB);
1138   if (BasicBlock *SinglePred = DestBB->getSinglePredecessor()) {
1139     if (SinglePred != DestBB) {
1142       // Merge DestBB into SinglePred/BB and delete it.
1143       MergeBlockIntoPredecessor(DestBB);
1145       // DestBB(=its single successor) is the one that was deleted.
1151         FreshBBs.erase(DestBB);
1157   // Otherwise, we have multiple predecessors of BB.  Update the PHIs in DestBB
1159   for (PHINode &PN : DestBB->phis()) {
1191   // DestBB and remove BB.
1192   BB->replaceAllUsesWith(DestBB);
1196   LLVM_DEBUG(dbgs() << "AFTER:\n" << *DestBB << "\n\n\n");