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

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

diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp
index 8c260c7c96564540da26aec85a9c1aa0b65b1c36..95d7f8a3beda23b180d350f3835f2e2c187e639e 100644 (file)
--- a/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -670,20 +670,19 @@ bool LoopUnswitch::UnswitchIfProfitable(Value *LoopCond, Constant *Val,
 /// mapping the blocks with the specified map.
 static Loop *CloneLoop(Loop *L, Loop *PL, ValueToValueMapTy &VM,
                        LoopInfo *LI, LPPassManager *LPM) {
-  Loop *New = new Loop();
-  LPM->insertLoop(New, PL);
+  Loop &New = LPM->addLoop(PL);
 
   // Add all of the blocks in L to the new loop.
   for (Loop::block_iterator I = L->block_begin(), E = L->block_end();
        I != E; ++I)
     if (LI->getLoopFor(*I) == L)
-      New->addBasicBlockToLoop(cast<BasicBlock>(VM[*I]), *LI);
+      New.addBasicBlockToLoop(cast<BasicBlock>(VM[*I]), *LI);
 
   // Add all of the subloops to the new loop.
   for (Loop::iterator I = L->begin(), E = L->end(); I != E; ++I)
-    CloneLoop(*I, New, VM, LI, LPM);
+    CloneLoop(*I, &New, VM, LI, LPM);
 
-  return New;
+  return &New;
 }
 
 static void copyMetadata(Instruction *DstInst, const Instruction *SrcInst,