[llvm] r299893 - [MemorySSA] We don't need to compute dominator levels anymore.
Davide Italiano via llvm-commits
llvm-commits at lists.llvm.org
Mon Apr 10 15:44:47 PDT 2017
Author: davide
Date: Mon Apr 10 17:44:46 2017
New Revision: 299893
URL: http://llvm.org/viewvc/llvm-project?rev=299893&view=rev
Log:
[MemorySSA] We don't need to compute dominator levels anymore.
Differential Revision: https://reviews.llvm.org/D31818
Modified:
llvm/trunk/include/llvm/Transforms/Utils/MemorySSA.h
llvm/trunk/lib/Transforms/Utils/MemorySSA.cpp
Modified: llvm/trunk/include/llvm/Transforms/Utils/MemorySSA.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Transforms/Utils/MemorySSA.h?rev=299893&r1=299892&r2=299893&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Transforms/Utils/MemorySSA.h (original)
+++ llvm/trunk/include/llvm/Transforms/Utils/MemorySSA.h Mon Apr 10 17:44:46 2017
@@ -701,7 +701,6 @@ private:
void
determineInsertionPoint(const SmallPtrSetImpl<BasicBlock *> &DefiningBlocks);
- void computeDomLevels(DenseMap<DomTreeNode *, unsigned> &DomLevels);
void markUnreachableAsLiveOnEntry(BasicBlock *BB);
bool dominatesUse(const MemoryAccess *, const MemoryAccess *) const;
MemoryPhi *createMemoryPhi(BasicBlock *BB);
Modified: llvm/trunk/lib/Transforms/Utils/MemorySSA.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Utils/MemorySSA.cpp?rev=299893&r1=299892&r2=299893&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Utils/MemorySSA.cpp (original)
+++ llvm/trunk/lib/Transforms/Utils/MemorySSA.cpp Mon Apr 10 17:44:46 2017
@@ -976,13 +976,6 @@ void MemorySSA::renamePass(DomTreeNode *
}
}
-/// \brief Compute dominator levels, used by the phi insertion algorithm above.
-void MemorySSA::computeDomLevels(DenseMap<DomTreeNode *, unsigned> &DomLevels) {
- for (auto DFI = df_begin(DT->getRootNode()), DFE = df_end(DT->getRootNode());
- DFI != DFE; ++DFI)
- DomLevels[*DFI] = DFI.getPathLength() - 1;
-}
-
/// \brief This handles unreachable block accesses by deleting phi nodes in
/// unreachable blocks, and marking all other unreachable MemoryAccess's as
/// being uses of the live on entry definition.
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