[PM] Pull the analyses used for another utility routine into its API

rather than relying on the pass object.

This one is a bit annoying, but will pay off. First, supporting this one
will make the next one much easier, and for utilities like LoopSimplify,
this is moving them (slowly) closer to not having to pass the pass
object around throughout their APIs.

llvm-svn: 226396

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
index 0ff6e01..cf80244 100644
--- a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -769,7 +769,9 @@ void LoopUnswitch::SplitExitEdges(Loop *L,
     // Although SplitBlockPredecessors doesn't preserve loop-simplify in
     // general, if we call it on all predecessors of all exits then it does.
     if (!ExitBlock->isLandingPad()) {
-      SplitBlockPredecessors(ExitBlock, Preds, ".us-lcssa", this);
+      SplitBlockPredecessors(ExitBlock, Preds, ".us-lcssa",
+                             /*AliasAnalysis*/ nullptr, DT, LI,
+                             /*PreserveLCSSA*/ true);
     } else {
       SmallVector<BasicBlock*, 2> NewBBs;
       SplitLandingPadPredecessors(ExitBlock, Preds, ".us-lcssa", ".us-lcssa",