[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, 3 insertions, 3 deletions

diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp
index f0c8f3b7178..6a58ce153b5 100644
--- a/llvm/lib/Analysis/ScalarEvolution.cpp
+++ b/llvm/lib/Analysis/ScalarEvolution.cpp
@@ -117,7 +117,7 @@ VerifySCEV("verify-scev",
 INITIALIZE_PASS_BEGIN(ScalarEvolution, "scalar-evolution",
                 "Scalar Evolution Analysis", false, true)
 INITIALIZE_PASS_DEPENDENCY(AssumptionCacheTracker)
-INITIALIZE_PASS_DEPENDENCY(LoopInfo)
+INITIALIZE_PASS_DEPENDENCY(LoopInfoWrapperPass)
 INITIALIZE_PASS_DEPENDENCY(DominatorTreeWrapperPass)
 INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass)
 INITIALIZE_PASS_END(ScalarEvolution, "scalar-evolution",
@@ -7867,7 +7867,7 @@ ScalarEvolution::ScalarEvolution()
 bool ScalarEvolution::runOnFunction(Function &F) {
   this->F = &F;
   AC = &getAnalysis<AssumptionCacheTracker>().getAssumptionCache(F);
-  LI = &getAnalysis<LoopInfo>();
+  LI = &getAnalysis<LoopInfoWrapperPass>().getLoopInfo();
   DataLayoutPass *DLP = getAnalysisIfAvailable<DataLayoutPass>();
   DL = DLP ? &DLP->getDataLayout() : nullptr;
   TLI = &getAnalysis<TargetLibraryInfoWrapperPass>().getTLI();
@@ -7908,7 +7908,7 @@ void ScalarEvolution::releaseMemory() {
 void ScalarEvolution::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.setPreservesAll();
   AU.addRequired<AssumptionCacheTracker>();
-  AU.addRequiredTransitive<LoopInfo>();
+  AU.addRequiredTransitive<LoopInfoWrapperPass>();
   AU.addRequiredTransitive<DominatorTreeWrapperPass>();
   AU.addRequired<TargetLibraryInfoWrapperPass>();
 }