Delete dead stores

llvm-svn: 365903

4 files changed, 5 insertions, 12 deletions

diff --git a/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp b/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp
index cf473c6c520..997d6883815 100644
--- a/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp
@@ -859,7 +859,7 @@ LoopStructure::parseLoopStructure(ScalarEvolution &SE,
 
   assert(!StepCI->isZero() && "Zero step?");
   bool IsIncreasing = !StepCI->isNegative();
-  bool IsSignedPredicate = ICmpInst::isSigned(Pred);
+  bool IsSignedPredicate;
   const SCEV *StartNext = IndVarBase->getStart();
   const SCEV *Addend = SE.getNegativeSCEV(IndVarBase->getStepRecurrence(SE));
   const SCEV *IndVarStart = SE.getAddExpr(StartNext, Addend);
diff --git a/llvm/lib/Transforms/Scalar/LoopInterchange.cpp b/llvm/lib/Transforms/Scalar/LoopInterchange.cpp
index 3dbb1ebebd7..9a42365adc1 100644
--- a/llvm/lib/Transforms/Scalar/LoopInterchange.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopInterchange.cpp
@@ -1264,9 +1264,7 @@ bool LoopInterchangeTransform::transform() {
 }
 
 void LoopInterchangeTransform::splitInnerLoopLatch(Instruction *Inc) {
-  BasicBlock *InnerLoopLatch = InnerLoop->getLoopLatch();
-  BasicBlock *InnerLoopLatchPred = InnerLoopLatch;
-  InnerLoopLatch = SplitBlock(InnerLoopLatchPred, Inc, DT, LI);
+  SplitBlock(InnerLoop->getLoopLatch(), Inc, DT, LI);
 }
 
 /// \brief Move all instructions except the terminator from FromBB right before
diff --git a/llvm/lib/Transforms/Utils/InlineFunction.cpp b/llvm/lib/Transforms/Utils/InlineFunction.cpp
index 6e4be9ea727..a7f0f7ac5d6 100644
--- a/llvm/lib/Transforms/Utils/InlineFunction.cpp
+++ b/llvm/lib/Transforms/Utils/InlineFunction.cpp
@@ -1499,7 +1499,7 @@ void llvm::updateProfileCallee(
     return;
 
   uint64_t priorEntryCount = CalleeCount.getCount();
-  uint64_t newEntryCount = priorEntryCount;
+  uint64_t newEntryCount;
 
   // Since CallSiteCount is an estimate, it could exceed the original callee
   // count and has to be set to 0 so guard against underflow.
diff --git a/llvm/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp b/llvm/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp
index 19daa050d1c..4273080ddd9 100644
--- a/llvm/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp
@@ -1152,13 +1152,8 @@ bool Vectorizer::vectorizeLoadChain(
              vectorizeLoadChain(Chains.second, InstructionsProcessed);
     }
 
-    unsigned NewAlign = getOrEnforceKnownAlignment(L0->getPointerOperand(),
-                                                   StackAdjustedAlignment,
-                                                   DL, L0, nullptr, &DT);
-    if (NewAlign != 0)
-      Alignment = NewAlign;
-
-    Alignment = NewAlign;
+    Alignment = getOrEnforceKnownAlignment(
+        L0->getPointerOperand(), StackAdjustedAlignment, DL, L0, nullptr, &DT);
   }
 
   if (!TTI.isLegalToVectorizeLoadChain(SzInBytes, Alignment, AS)) {