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

diff --git a/lib/Transforms/Scalar/LoopRotation.cpp b/lib/Transforms/Scalar/LoopRotation.cpp
index a9c3fb9533fa9abc9c770ebbdcd6c00aa63cbda1..153f09563dfc9fad4d4ed6eb0ceac4f6d439ac7d 100644 (file)
--- a/lib/Transforms/Scalar/LoopRotation.cpp
+++ b/lib/Transforms/Scalar/LoopRotation.cpp
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by Devang Patel and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -56,12 +56,12 @@ namespace {
 
     // LCSSA form makes instruction renaming easier.
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.addRequiredID(LoopSimplifyID);
+      AU.addPreservedID(LoopSimplifyID);
       AU.addRequiredID(LCSSAID);
       AU.addPreservedID(LCSSAID);
       AU.addPreserved<ScalarEvolution>();
       AU.addPreserved<LoopInfo>();
-      AU.addRequiredID(LoopSimplifyID);
-      AU.addPreservedID(LoopSimplifyID);
       AU.addPreserved<DominatorTree>();
       AU.addPreserved<DominanceFrontier>();
     }
@@ -151,13 +151,13 @@ bool LoopRotate::rotateLoop(Loop *Lp, LPPassManager &LPM) {
   BranchInst *BI = dyn_cast<BranchInst>(OrigHeader->getTerminator());
   if (!BI)
     return false;
-  assert (BI->isConditional() && "Branch Instruction is not condiitional");
+  assert (BI->isConditional() && "Branch Instruction is not conditional");
 
   // Updating PHInodes in loops with multiple exits adds complexity. 
   // Keep it simple, and restrict loop rotation to loops with one exit only.
   // In future, lift this restriction and support for multiple exits if
   // required.
-  std::vector<BasicBlock *> ExitBlocks;
+  SmallVector<BasicBlock*, 8> ExitBlocks;
   L->getExitBlocks(ExitBlocks);
   if (ExitBlocks.size() > 1)
     return false;
@@ -451,7 +451,7 @@ void LoopRotate::preserveCanonicalLoopForm(LPPassManager &LPM) {
                                 NewHeader);
   LoopInfo &LI = LPM.getAnalysis<LoopInfo>();
   if (Loop *PL = LI.getLoopFor(OrigPreHeader))
-    PL->addBasicBlockToLoop(NewPreHeader, LI);
+    PL->addBasicBlockToLoop(NewPreHeader, LI.getBase());
   new BranchInst(NewHeader, NewPreHeader);
   
   BranchInst *OrigPH_BI = cast<BranchInst>(OrigPreHeader->getTerminator());