[PM] Update Polly for LLVM r226385 which made LoopInfo actually derive
from LoopInfoBase<...>, removing the need for the awkward getBase()
dance.

llvm-svn: 226387
diff --git a/polly/lib/CodeGen/LoopGenerators.cpp b/polly/lib/CodeGen/LoopGenerators.cpp
index af04137..05ab620 100644
--- a/polly/lib/CodeGen/LoopGenerators.cpp
+++ b/polly/lib/CodeGen/LoopGenerators.cpp
@@ -80,11 +80,11 @@
 
   if (OuterLoop) {
     if (GuardBB)
-      OuterLoop->addBasicBlockToLoop(GuardBB, LI.getBase());
-    OuterLoop->addBasicBlockToLoop(PreHeaderBB, LI.getBase());
+      OuterLoop->addBasicBlockToLoop(GuardBB, LI);
+    OuterLoop->addBasicBlockToLoop(PreHeaderBB, LI);
   }
 
-  NewLoop->addBasicBlockToLoop(HeaderBB, LI.getBase());
+  NewLoop->addBasicBlockToLoop(HeaderBB, LI);
 
   // Notify the annotator (if present) that we have a new loop, but only
   // after the header block is set.