[MemorySSA] preservesAll() implies preserves<MemorySSA>(). NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305160 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Analysis/MemorySSA.cpp b/lib/Analysis/MemorySSA.cpp
index e0e04a91410ff3ee2d40d5c68fc58c810c14110d..4aa9cfa51d381f08ceb8de1b96834d603c75c055 100644 (file)
--- a/lib/Analysis/MemorySSA.cpp
+++ b/lib/Analysis/MemorySSA.cpp
@@ -1872,7 +1872,6 @@ MemorySSAPrinterLegacyPass::MemorySSAPrinterLegacyPass() : FunctionPass(ID) {
 void MemorySSAPrinterLegacyPass::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.setPreservesAll();
   AU.addRequired<MemorySSAWrapperPass>();
-  AU.addPreserved<MemorySSAWrapperPass>();
 }
 
 bool MemorySSAPrinterLegacyPass::runOnFunction(Function &F) {