diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/PredicateInfo.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/PredicateInfo.cpp | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/llvm/lib/Transforms/Utils/PredicateInfo.cpp b/llvm/lib/Transforms/Utils/PredicateInfo.cpp index 4c87bab..4a0faab 100644 --- a/llvm/lib/Transforms/Utils/PredicateInfo.cpp +++ b/llvm/lib/Transforms/Utils/PredicateInfo.cpp @@ -253,10 +253,6 @@ class PredicateInfoBuilder { // whether it returned a valid result. DenseMap<Value *, unsigned int> ValueInfoNums; - // The set of edges along which we can only handle phi uses, due to critical - // edges. - DenseSet<std::pair<BasicBlock *, BasicBlock *>> EdgeUsesOnly; - ValueInfo &getOrCreateValueInfo(Value *); const ValueInfo &getValueInfo(Value *) const; @@ -459,8 +455,6 @@ void PredicateInfoBuilder::processBranch( PredicateBase *PB = new PredicateBranch(V, BranchBB, Succ, Cond, TakenEdge); addInfoFor(OpsToRename, V, PB); - if (!Succ->getSinglePredecessor()) - EdgeUsesOnly.insert({BranchBB, Succ}); } } } @@ -487,8 +481,6 @@ void PredicateInfoBuilder::processSwitch( PredicateSwitch *PS = new PredicateSwitch( Op, SI->getParent(), TargetBlock, C.getCaseValue(), SI); addInfoFor(OpsToRename, Op, PS); - if (!TargetBlock->getSinglePredecessor()) - EdgeUsesOnly.insert({BranchBB, TargetBlock}); } } } @@ -637,7 +629,7 @@ void PredicateInfoBuilder::renameUses(SmallVectorImpl<Value *> &OpsToRename) { // block, and handle it specially. We know that it goes last, and only // dominate phi uses. auto BlockEdge = getBlockEdge(PossibleCopy); - if (EdgeUsesOnly.count(BlockEdge)) { + if (!BlockEdge.second->getSinglePredecessor()) { VD.LocalNum = LN_Last; auto *DomNode = DT.getNode(BlockEdge.first); if (DomNode) { |