Require IVUsers after LCSSA, since LCSSA does not preserve IVUsers.

This results in the pass manager running IVUsers only once for
indvars, instead of twice.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75633 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/IndVarSimplify.cpp b/lib/Transforms/Scalar/IndVarSimplify.cpp
index 911545d86f3e6d48eaee6026f916edea3d99114d..9fb4d6bd537266f6597cf7bbcc0375da37349a9d 100644 (file)
--- a/lib/Transforms/Scalar/IndVarSimplify.cpp
+++ b/lib/Transforms/Scalar/IndVarSimplify.cpp
@@ -82,15 +82,15 @@ namespace {
 
    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
      AU.addRequired<DominatorTree>();
+     AU.addRequired<LoopInfo>();
      AU.addRequired<ScalarEvolution>();
      AU.addRequiredID(LoopSimplifyID);
-     AU.addRequired<LoopInfo>();
-     AU.addRequired<IVUsers>();
      AU.addRequiredID(LCSSAID);
+     AU.addRequired<IVUsers>();
      AU.addPreserved<ScalarEvolution>();
      AU.addPreservedID(LoopSimplifyID);
-     AU.addPreserved<IVUsers>();
      AU.addPreservedID(LCSSAID);
+     AU.addPreserved<IVUsers>();
      AU.setPreservesCFG();
    }