[RS4GC] Use an value handle to help isolate errors quickly

[oota-llvm.git] / lib / Transforms / Scalar / StructurizeCFG.cpp

diff --git a/lib/Transforms/Scalar/StructurizeCFG.cpp b/lib/Transforms/Scalar/StructurizeCFG.cpp
index 4f23e20d251dfccb1cee83903091e0dada2e0e61..662513c7d8ae0faa4fed88e6ab2bfa04849f86f5 100644 (file)
--- a/lib/Transforms/Scalar/StructurizeCFG.cpp
+++ b/lib/Transforms/Scalar/StructurizeCFG.cpp
@@ -358,13 +358,9 @@ void StructurizeCFG::analyzeLoops(RegionNode *N) {
     BasicBlock *BB = N->getNodeAs<BasicBlock>();
     BranchInst *Term = cast<BranchInst>(BB->getTerminator());
 
-    for (unsigned i = 0, e = Term->getNumSuccessors(); i != e; ++i) {
-      BasicBlock *Succ = Term->getSuccessor(i);
-
-      if (Visited.count(Succ)) {
+    for (BasicBlock *Succ : Term->successors())
+      if (Visited.count(Succ))
         Loops[Succ] = BB;
-      }
-    }
   }
 }
 
@@ -903,14 +899,14 @@ void StructurizeCFG::rebuildSSA() {
             continue;
         }
 
-        if (DT->dominates(II, User))
+        if (DT->dominates(&*II, User))
           continue;
 
         if (!Initialized) {
           Value *Undef = UndefValue::get(II->getType());
           Updater.Initialize(II->getType(), "");
           Updater.AddAvailableValue(&Func->getEntryBlock(), Undef);
-          Updater.AddAvailableValue(BB, II);
+          Updater.AddAvailableValue(BB, &*II);
           Initialized = true;
         }
         Updater.RewriteUseAfterInsertions(U);