[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, 4 insertions, 4 deletions

diff --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index 7b60373dc50..250185cd371 100644
--- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -4863,7 +4863,7 @@ LSRInstance::ImplementSolution(const SmallVectorImpl<const Formula *> &Solution,
 LSRInstance::LSRInstance(Loop *L, Pass *P)
     : IU(P->getAnalysis<IVUsers>()), SE(P->getAnalysis<ScalarEvolution>()),
       DT(P->getAnalysis<DominatorTreeWrapperPass>().getDomTree()),
-      LI(P->getAnalysis<LoopInfo>()),
+      LI(P->getAnalysis<LoopInfoWrapperPass>().getLoopInfo()),
       TTI(P->getAnalysis<TargetTransformInfo>()), L(L), Changed(false),
       IVIncInsertPos(nullptr) {
   // If LoopSimplify form is not available, stay out of trouble.
@@ -5045,7 +5045,7 @@ INITIALIZE_AG_DEPENDENCY(TargetTransformInfo)
 INITIALIZE_PASS_DEPENDENCY(DominatorTreeWrapperPass)
 INITIALIZE_PASS_DEPENDENCY(ScalarEvolution)
 INITIALIZE_PASS_DEPENDENCY(IVUsers)
-INITIALIZE_PASS_DEPENDENCY(LoopInfo)
+INITIALIZE_PASS_DEPENDENCY(LoopInfoWrapperPass)
 INITIALIZE_PASS_DEPENDENCY(LoopSimplify)
 INITIALIZE_PASS_END(LoopStrengthReduce, "loop-reduce",
                 "Loop Strength Reduction", false, false)
@@ -5064,8 +5064,8 @@ void LoopStrengthReduce::getAnalysisUsage(AnalysisUsage &AU) const {
   // many analyses if they are around.
   AU.addPreservedID(LoopSimplifyID);
 
-  AU.addRequired<LoopInfo>();
-  AU.addPreserved<LoopInfo>();
+  AU.addRequired<LoopInfoWrapperPass>();
+  AU.addPreserved<LoopInfoWrapperPass>();
   AU.addRequiredID(LoopSimplifyID);
   AU.addRequired<DominatorTreeWrapperPass>();
   AU.addPreserved<DominatorTreeWrapperPass>();