diff --git a/mlir/lib/IR/AffineMap.cpp b/mlir/lib/IR/AffineMap.cpp
--- a/mlir/lib/IR/AffineMap.cpp
+++ b/mlir/lib/IR/AffineMap.cpp
@@ -127,8 +127,8 @@
 template <typename AffineExprContainer>
 static SmallVector<AffineMap, 4>
 inferFromExprList(ArrayRef<AffineExprContainer> exprsList) {
-  assert(exprsList.size() != 0);
-  assert(exprsList[0].size() != 0);
+  assert(!exprsList.empty());
+  assert(!exprsList[0].empty());
   auto context = exprsList[0][0].getContext();
   int64_t maxDim = -1, maxSym = -1;
   getMaxDimAndSymbol(exprsList, maxDim, maxSym);