diff --git a/mlir/lib/Dialect/SparseTensor/Transforms/CodegenEnv.cpp b/mlir/lib/Dialect/SparseTensor/Transforms/CodegenEnv.cpp
--- a/mlir/lib/Dialect/SparseTensor/Transforms/CodegenEnv.cpp
+++ b/mlir/lib/Dialect/SparseTensor/Transforms/CodegenEnv.cpp
@@ -32,7 +32,6 @@
 static void sortArrayBasedOnOrder(std::vector<LoopId> &target,
                                   ArrayRef<LoopId> order) {
   std::sort(target.begin(), target.end(), [&order](LoopId l, LoopId r) {
-    assert(l != r);
     int idxL = -1, idxR = -1;
     for (int i = 0, e = order.size(); i < e; i++) {
       if (order[i] == l)
diff --git a/mlir/lib/Dialect/SparseTensor/Transforms/CodegenUtils.cpp b/mlir/lib/Dialect/SparseTensor/Transforms/CodegenUtils.cpp
--- a/mlir/lib/Dialect/SparseTensor/Transforms/CodegenUtils.cpp
+++ b/mlir/lib/Dialect/SparseTensor/Transforms/CodegenUtils.cpp
@@ -566,7 +566,7 @@
                   continue;
                 return lhsCoords[l].getInt() < rhsCoords[l].getInt();
               }
-              llvm_unreachable("no equal coordinate in sparse element attr");
+              return false;
             });
 
   SmallVector<Value> cvs;