[PM] Split the LoopInfo object apart from the legacy pass, creating

a LoopInfoWrapperPass to wire the object up to the legacy pass manager.

This switches all the clients of LoopInfo over and paves the way to port
LoopInfo to the new pass manager. No functionality change is intended
with this iteration.

llvm-svn: 226373

1 files changed, 2 insertions, 1 deletions

diff --git a/llvm/lib/Analysis/BasicAliasAnalysis.cpp b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
index c32cdafabd3..7537f6e5423 100644
--- a/llvm/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
@@ -1436,7 +1436,8 @@ bool BasicAliasAnalysis::isValueEqualInPotentialCycles(const Value *V,
   DominatorTreeWrapperPass *DTWP =
       getAnalysisIfAvailable<DominatorTreeWrapperPass>();
   DominatorTree *DT = DTWP ? &DTWP->getDomTree() : nullptr;
-  LoopInfo *LI = getAnalysisIfAvailable<LoopInfo>();
+  auto *LIWP = getAnalysisIfAvailable<LoopInfoWrapperPass>();
+  LoopInfo *LI = LIWP ? &LIWP->getLoopInfo() : nullptr;
 
   // Make sure that the visited phis cannot reach the Value. This ensures that
   // the Values cannot come from different iterations of a potential cycle the