Remove several unused variables.

Patch by Alp Toker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191757 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/lib/Transforms/Instrumentation/AddressSanitizer.cpp
index 8f8af20..7ced56b 100644
--- a/lib/Transforms/Instrumentation/AddressSanitizer.cpp
+++ b/lib/Transforms/Instrumentation/AddressSanitizer.cpp
@@ -927,8 +927,7 @@
   StructType *GlobalStructTy = StructType::get(IntptrTy, IntptrTy,
                                                IntptrTy, IntptrTy,
                                                IntptrTy, IntptrTy, NULL);
-  SmallVector<Constant *, 16> Initializers(n), DynamicInit;
-
+  SmallVector<Constant *, 16> Initializers(n);
 
   Function *CtorFunc = M.getFunction(kAsanModuleCtorName);
   assert(CtorFunc);
diff --git a/lib/Transforms/Utils/BasicBlockUtils.cpp b/lib/Transforms/Utils/BasicBlockUtils.cpp
index e17a416..a2e82f3 100644
--- a/lib/Transforms/Utils/BasicBlockUtils.cpp
+++ b/lib/Transforms/Utils/BasicBlockUtils.cpp
@@ -248,7 +248,6 @@
 
   // If the edge isn't critical, then BB has a single successor or Succ has a
   // single pred.  Split the block.
-  BasicBlock::iterator SplitPoint;
   if (BasicBlock *SP = Succ->getSinglePredecessor()) {
     // If the successor only has a single pred, split the top of the successor
     // block.
diff --git a/lib/Transforms/Utils/LowerInvoke.cpp b/lib/Transforms/Utils/LowerInvoke.cpp
index f66b54d..9799a30 100644
--- a/lib/Transforms/Utils/LowerInvoke.cpp
+++ b/lib/Transforms/Utils/LowerInvoke.cpp
@@ -346,7 +346,6 @@
       // Scan all of the uses and see if the live range is live across an unwind
       // edge.  If we find a use live across an invoke edge, create an alloca
       // and spill the value.
-      std::set<InvokeInst*> InvokesWithStoreInserted;
 
       // Find all of the blocks that this value is live in.
       std::set<BasicBlock*> LiveBBs;
diff --git a/lib/Transforms/Vectorize/LoopVectorize.cpp b/lib/Transforms/Vectorize/LoopVectorize.cpp
index 0b5d0d4..d5df1115 100644
--- a/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -3758,7 +3758,6 @@
     return true;
   }
 
-  SmallPtrSet<Value *, 16> ReadOnlyPtr;
   for (I = Loads.begin(), IE = Loads.end(); I != IE; ++I) {
     LoadInst *LD = cast<LoadInst>(*I);
     Value* Ptr = LD->getPointerOperand();
diff --git a/lib/Transforms/Vectorize/SLPVectorizer.cpp b/lib/Transforms/Vectorize/SLPVectorizer.cpp
index c8c8ba5..c2c53c7 100644
--- a/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -2172,7 +2172,6 @@
     assert(isPowerOf2_32(ReduxWidth) &&
            "We only handle power-of-two reductions for now");
 
-    SmallVector<Constant *, 32> ShuffleMask(ReduxWidth, 0);
     Value *TmpVec = ValToReduce;
     for (unsigned i = ReduxWidth / 2; i != 0; i >>= 1) {
       if (IsPairwiseReduction) {