Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186098 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/CostModel.cpp b/lib/Analysis/CostModel.cpp
index 307795c..927508e 100644
--- a/lib/Analysis/CostModel.cpp
+++ b/lib/Analysis/CostModel.cpp
@@ -81,7 +81,7 @@
  return false;
 }
 
-static bool isReverseVectorMask(SmallVector<int, 16> &Mask) {
+static bool isReverseVectorMask(SmallVectorImpl<int> &Mask) {
   for (unsigned i = 0, MaskSize = Mask.size(); i < MaskSize; ++i)
     if (Mask[i] > 0 && Mask[i] != (int)(MaskSize - 1 - i))
       return false;
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index 1d5e5fb..69beaaf 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -1380,7 +1380,7 @@
 ///
 static bool
 CollectAddOperandsWithScales(DenseMap<const SCEV *, APInt> &M,
-                             SmallVector<const SCEV *, 8> &NewOps,
+                             SmallVectorImpl<const SCEV *> &NewOps,
                              APInt &AccumulatedConstant,
                              const SCEV *const *Ops, size_t NumOperands,
                              const APInt &Scale,
diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp
index 1b20a25..84a6346 100644
--- a/lib/Analysis/ValueTracking.cpp
+++ b/lib/Analysis/ValueTracking.cpp
@@ -1526,7 +1526,7 @@
 // struct. To is the result struct built so far, new insertvalue instructions
 // build on that.
 static Value *BuildSubAggregate(Value *From, Value* To, Type *IndexedType,
-                                SmallVector<unsigned, 10> &Idxs,
+                                SmallVectorImpl<unsigned> &Idxs,
                                 unsigned IdxSkip,
                                 Instruction *InsertBefore) {
   llvm::StructType *STy = dyn_cast<llvm::StructType>(IndexedType);