Cross Reference: /external/llvm/lib/Transforms/Utils/BreakCriticalEdges.cpp

Lines Matching defs:DestBB
90 /// is the new loop exit block, and DestBB is the old loop exit, now the
94                                        BasicBlock *DestBB) {
100   for (BasicBlock::iterator I = DestBB->begin();
151   BasicBlock *DestBB = TI->getSuccessor(SuccNum);
155   if (DestBB->isLandingPad()) return nullptr;
159                       TIBB->getName() + "." + DestBB->getName() + "_crit_edge");
161   BranchInst *NewBI = BranchInst::Create(DestBB, NewBB);
172   // If there are any PHI nodes in DestBB, we need to update them so that they
176     for (BasicBlock::iterator I = DestBB->begin(); isa<PHINode>(I); ++I) {
193   // If there are any other edges from TIBB to DestBB, update those to go
195   // reducing the number of phi entries in the DestBB if relevant).
198       if (TI->getSuccessor(i) != DestBB) continue;
200       // Remove an entry for TIBB from DestBB phi nodes.
201       DestBB->removePredecessor(TIBB, DontDeleteUselessPhis);
203       // We found another edge to DestBB, go to NewBB instead.
224   // anything, as there are other successors of DestBB.  However, if all other
225   // predecessors of DestBB are already dominated by DestBB (e.g. DestBB is a
226   // loop header) then NewBB dominates DestBB.
231   if (PHINode *PN = dyn_cast<PHINode>(DestBB->begin())) {
236     for (pred_iterator I = pred_begin(DestBB), E = pred_end(DestBB);
259         DestBBNode = DT->getNode(DestBB);
268       // If NewBBDominatesDestBB, then NewBB dominates DestBB, otherwise it
271         if (!DestBBNode) DestBBNode = DT->getNode(DestBB);
282       if (Loop *DestLoop = LI->getLoopFor(DestBB)) {
297           assert(DestLoop->getHeader() == DestBB &&
303       // If TIBB is in a loop and DestBB is outside of that loop, we may need
305       if (!TIL->contains(DestBB) &&
312           createPHIsForSplitLoopExit(TIBB, NewBB, DestBB);
315         // edge is if after the split there exists some edge from TIL to DestBB
316         // *and* the only edge into DestBB from outside of TIL is that of
319         // second isn't true, then DestBB was not in LoopSimplify form prior to
324         for (pred_iterator I = pred_begin(DestBB), E = pred_end(DestBB); I != E;
337           assert(!DestBB->isLandingPad() &&
340               SplitBlockPredecessors(DestBB, LoopPreds, "split", P);
342             createPHIsForSplitLoopExit(LoopPreds, NewExitBB, DestBB);