Remove unused variables and parameters.

llvm-svn: 96780

2 files changed, 4 insertions, 6 deletions

diff --git a/llvm/lib/Analysis/IVUsers.cpp b/llvm/lib/Analysis/IVUsers.cpp
index 4ce68683cd3..44d72e8e0a9 100644
--- a/llvm/lib/Analysis/IVUsers.cpp
+++ b/llvm/lib/Analysis/IVUsers.cpp
@@ -142,8 +142,7 @@ static bool getSCEVStartAndStride(const SCEV *&SH, Loop *L, Loop *UseLoop,
 /// the loop, resulting in reg-reg copies (if we use the pre-inc value when we
 /// should use the post-inc value).
 static bool IVUseShouldUsePostIncValue(Instruction *User, Instruction *IV,
-                                       Loop *L, LoopInfo *LI, DominatorTree *DT,
-                                       Pass *P) {
+                                       Loop *L, DominatorTree *DT) {
   // If the user is in the loop, use the preinc value.
   if (L->contains(User)) return false;
 
@@ -245,7 +244,7 @@ bool IVUsers::AddUsersIfInteresting(Instruction *I) {
       // Okay, we found a user that we cannot reduce.  Analyze the instruction
       // and decide what to do with it.  If we are a use inside of the loop, use
       // the value before incrementation, otherwise use it after incrementation.
-      if (IVUseShouldUsePostIncValue(User, I, L, LI, DT, this)) {
+      if (IVUseShouldUsePostIncValue(User, I, L, DT)) {
         // The value used will be incremented by the stride more than we are
         // expecting, so subtract this off.
         const SCEV *NewStart = SE->getMinusSCEV(Start, Stride);
diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp
index 66c45176d5e..c17f6f38c66 100644
--- a/llvm/lib/Analysis/ScalarEvolution.cpp
+++ b/llvm/lib/Analysis/ScalarEvolution.cpp
@@ -2564,7 +2564,7 @@ ScalarEvolution::ForgetSymbolicName(Instruction *I, const SCEV *SymName) {
   SmallPtrSet<Instruction *, 8> Visited;
   Visited.insert(I);
   while (!Worklist.empty()) {
-    Instruction *I = Worklist.pop_back_val();
+    I = Worklist.pop_back_val();
     if (!Visited.insert(I)) continue;
 
     std::map<SCEVCallbackVH, const SCEV *>::iterator It =
@@ -2942,7 +2942,6 @@ ScalarEvolution::getUnsignedRange(const SCEV *S) {
 
   if (const SCEVUnknown *U = dyn_cast<SCEVUnknown>(S)) {
     // For a SCEVUnknown, ask ValueTracking.
-    unsigned BitWidth = getTypeSizeInBits(U->getType());
     APInt Mask = APInt::getAllOnesValue(BitWidth);
     APInt Zeros(BitWidth, 0), Ones(BitWidth, 0);
     ComputeMaskedBits(U->getValue(), Mask, Zeros, Ones, TD);
@@ -5367,8 +5366,8 @@ ScalarEvolution::ScalarEvolution()
 bool ScalarEvolution::runOnFunction(Function &F) {
   this->F = &F;
   LI = &getAnalysis<LoopInfo>();
-  DT = &getAnalysis<DominatorTree>();
   TD = getAnalysisIfAvailable<TargetData>();
+  DT = &getAnalysis<DominatorTree>();
   return false;
 }