diff --git a/lib/Analysis/IPA/CallGraphSCCPass.cpp b/lib/Analysis/IPA/CallGraphSCCPass.cpp
index 97a4008..786b720 100644
--- a/lib/Analysis/IPA/CallGraphSCCPass.cpp
+++ b/lib/Analysis/IPA/CallGraphSCCPass.cpp
@@ -117,7 +117,8 @@
       if (Changed)
         dumpPassInfo(P, MODIFICATION_MSG, ON_CG_MSG, "");
       dumpAnalysisSetInfo("Preserved", P, AnUsage.getPreservedSet());
-      
+
+      verifyPreservedAnalysis(P);      
       removeNotPreservedAnalysis(P);
       recordAvailableAnalysis(P);
       removeDeadPasses(P, "", ON_CG_MSG);
diff --git a/lib/Analysis/LoopInfo.cpp b/lib/Analysis/LoopInfo.cpp
index d58f90d..8f9b43f 100644
--- a/lib/Analysis/LoopInfo.cpp
+++ b/lib/Analysis/LoopInfo.cpp
@@ -81,6 +81,18 @@
     (*I)->print(OS, Depth+2);
 }
 
+/// verifyLoop - Verify loop structure
+void Loop::verifyLoop() const {
+#ifndef NDEBUG
+  assert (getHeader() && "Loop header is missing");
+  assert (getLoopPreheader() && "Loop preheader is missing");
+  assert (getLoopLatch() && "Loop latch is missing");
+  for (std::vector<Loop*>::const_iterator I = SubLoops.begin(), E = SubLoops.end();
+       I != E; ++I)
+    (*I)->verifyLoop();
+#endif
+}
+
 void Loop::dump() const {
   print(cerr);
 }
@@ -104,7 +116,6 @@
   TopLevelLoops.clear();
 }
 
-
 void LoopInfo::Calculate(DominatorTree &DT) {
   BasicBlock *RootNode = DT.getRootNode()->getBlock();
 
diff --git a/lib/Analysis/LoopPass.cpp b/lib/Analysis/LoopPass.cpp
index f14a9ba..dc3e868 100644
--- a/lib/Analysis/LoopPass.cpp
+++ b/lib/Analysis/LoopPass.cpp
@@ -157,18 +157,6 @@
   Info.setPreservesAll();
 }
 
-/// verifyLoopInfo - Verify loop nest.
-void LPPassManager::verifyLoopInfo() {
-  assert (LI && "Loop Info is missing");
-
-  for (LoopInfo::iterator I = LI->begin(), E = LI->end(); I != E; ++I) {
-    Loop *L = *I;
-    assert (L->getHeader() && "Loop header is missing");
-    assert (L->getLoopPreheader() && "Loop preheader is missing");
-    assert (L->getLoopLatch() && "Loop latch is missing");
-  }
-}
-
 /// run - Execute all of the passes scheduled for execution.  Keep track of
 /// whether any of the passes modifies the function, and if so, return true.
 bool LPPassManager::runOnFunction(Function &F) {
@@ -214,13 +202,13 @@
       LoopPass *LP = dynamic_cast<LoopPass *>(P);
       assert (LP && "Invalid LPPassManager member");
       LP->runOnLoop(CurrentLoop, *this);
-      verifyLoopInfo();
       StopPassTimer(P);
 
       if (Changed)
         dumpPassInfo(P, MODIFICATION_MSG, ON_LOOP_MSG, "");
       dumpAnalysisSetInfo("Preserved", P, AnUsage.getPreservedSet());
-      
+
+      verifyPreservedAnalysis(LP);
       removeNotPreservedAnalysis(P);
       recordAvailableAnalysis(P);
       removeDeadPasses(P, "", ON_LOOP_MSG);