diff options
Diffstat (limited to 'lib/Transforms/Utils/LoopSimplify.cpp')
| -rw-r--r-- | lib/Transforms/Utils/LoopSimplify.cpp | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/lib/Transforms/Utils/LoopSimplify.cpp b/lib/Transforms/Utils/LoopSimplify.cpp index 75991688b1..7d34b95cba 100644 --- a/lib/Transforms/Utils/LoopSimplify.cpp +++ b/lib/Transforms/Utils/LoopSimplify.cpp @@ -68,7 +68,6 @@ namespace { AU.addRequired<ETForest>(); AU.addPreserved<LoopInfo>(); - AU.addPreserved<ImmediateDominators>(); AU.addPreserved<ETForest>(); AU.addPreserved<DominatorTree>(); AU.addPreserved<DominanceFrontier>(); @@ -749,31 +748,6 @@ void LoopSimplify::UpdateDomInfoForRevectoredPreds(BasicBlock *NewBB, } BasicBlock *NewBBIDom = 0; - - // Update immediate dominator information if we have it. - if (ImmediateDominators *ID = getAnalysisToUpdate<ImmediateDominators>()) { - unsigned i = 0; - for (i = 0; i < PredBlocks.size(); ++i) - if (ETF.dominates(&PredBlocks[i]->getParent()->getEntryBlock(), PredBlocks[i])) { - NewBBIDom = PredBlocks[i]; - break; - } - assert(i != PredBlocks.size() && "No reachable preds?"); - for (i = i + 1; i < PredBlocks.size(); ++i) { - if (ETF.dominates(&PredBlocks[i]->getParent()->getEntryBlock(), PredBlocks[i])) - NewBBIDom = ETF.nearestCommonDominator(NewBBIDom, PredBlocks[i]); - } - assert(NewBBIDom && "No immediate dominator found??"); - - // Set the immediate dominator now... - ID->addNewBlock(NewBB, NewBBIDom); - - // If NewBB strictly dominates other blocks, we need to update their idom's - // now. The only block that need adjustment is the NewBBSucc block, whose - // idom should currently be set to PredBlocks[0]. - if (NewBBDominatesNewBBSucc) - ID->setImmediateDominator(NewBBSucc, NewBB); - } // Update DominatorTree information if it is active. if (DominatorTree *DT = getAnalysisToUpdate<DominatorTree>()) { |