diff --git a/mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp b/mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp
--- a/mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp
+++ b/mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp
@@ -171,7 +171,7 @@
 
 static CallOp createFuncCall(OpBuilder &builder, Operation *op, StringRef name,
                              TypeRange resultType, ValueRange operands,
-                             bool emitCInterface = false) {
+                             bool emitCInterface = true) {
   auto fn = getFunc(op, name, resultType, operands, emitCInterface);
   return builder.create<CallOp>(op->getLoc(), resultType, fn, operands);
 }
@@ -179,7 +179,7 @@
 static CallOp replaceOpWithFuncCall(PatternRewriter &rewriter, Operation *op,
                                     StringRef name, TypeRange resultType,
                                     ValueRange operands,
-                                    bool emitCInterface = false) {
+                                    bool emitCInterface = true) {
   auto fn = getFunc(op, name, resultType, operands, emitCInterface);
   return rewriter.replaceOpWithNewOp<CallOp>(op, resultType, fn, operands);
 }
@@ -196,7 +196,9 @@
   StringRef name = "sparseDimSize";
   SmallVector<Value, 2> params{src, constantIndex(rewriter, loc, idx)};
   Type iTp = rewriter.getIndexType();
-  return createFuncCall(rewriter, op, name, iTp, params).getResult(0);
+  return createFuncCall(rewriter, op, name, iTp, params,
+                        /*emitCInterface=*/false)
+      .getResult(0);
 }
 
 /// Generates a call into the "swiss army knife" method of the sparse runtime
@@ -205,7 +207,7 @@
                         ArrayRef<Value> params) {
   StringRef name = "newSparseTensor";
   Type pTp = getOpaquePointerType(rewriter);
-  return createFuncCall(rewriter, op, name, pTp, params, true).getResult(0);
+  return createFuncCall(rewriter, op, name, pTp, params).getResult(0);
 }
 
 /// Populates given sizes array from type.
@@ -382,8 +384,7 @@
   else
     llvm_unreachable("Unknown element type");
   SmallVector<Value, 4> params{ptr, val, ind, perm};
-  Type pTp = getOpaquePointerType(rewriter);
-  createFuncCall(rewriter, op, name, pTp, params, true);
+  createFuncCall(rewriter, op, name, getOpaquePointerType(rewriter), params);
 }
 
 /// Generates a call to `iter->getNext()`.  If there is a next element,
@@ -410,7 +411,7 @@
     llvm_unreachable("Unknown element type");
   SmallVector<Value, 3> params{iter, ind, elemPtr};
   Type i1 = rewriter.getI1Type();
-  return createFuncCall(rewriter, op, name, i1, params, true).getResult(0);
+  return createFuncCall(rewriter, op, name, i1, params).getResult(0);
 }
 
 /// If the tensor is a sparse constant, generates and returns the pair of
@@ -757,7 +758,8 @@
                   ConversionPatternRewriter &rewriter) const override {
     StringRef name = "delSparseTensor";
     TypeRange noTp;
-    createFuncCall(rewriter, op, name, noTp, adaptor.getOperands());
+    createFuncCall(rewriter, op, name, noTp, adaptor.getOperands(),
+                   /*emitCInterface=*/false);
     rewriter.eraseOp(op);
     return success();
   }
@@ -786,8 +788,7 @@
       name = "sparsePointers8";
     else
       return failure();
-    auto operands = adaptor.getOperands();
-    replaceOpWithFuncCall(rewriter, op, name, resType, operands, true);
+    replaceOpWithFuncCall(rewriter, op, name, resType, adaptor.getOperands());
     return success();
   }
 };
@@ -814,8 +815,7 @@
       name = "sparseIndices8";
     else
       return failure();
-    auto operands = adaptor.getOperands();
-    replaceOpWithFuncCall(rewriter, op, name, resType, operands, true);
+    replaceOpWithFuncCall(rewriter, op, name, resType, adaptor.getOperands());
     return success();
   }
 };
@@ -844,8 +844,7 @@
       name = "sparseValuesI8";
     else
       return failure();
-    auto operands = adaptor.getOperands();
-    replaceOpWithFuncCall(rewriter, op, name, resType, operands, true);
+    replaceOpWithFuncCall(rewriter, op, name, resType, adaptor.getOperands());
     return success();
   }
 };
@@ -861,7 +860,8 @@
       // Finalize any pending insertions.
       StringRef name = "endInsert";
       TypeRange noTp;
-      createFuncCall(rewriter, op, name, noTp, adaptor.getOperands());
+      createFuncCall(rewriter, op, name, noTp, adaptor.getOperands(),
+                     /*emitCInterface=*/false);
     }
     rewriter.replaceOp(op, adaptor.getOperands());
     return success();
@@ -893,8 +893,7 @@
     else
       llvm_unreachable("Unknown element type");
     TypeRange noTp;
-    auto operands = adaptor.getOperands();
-    replaceOpWithFuncCall(rewriter, op, name, noTp, operands, true);
+    replaceOpWithFuncCall(rewriter, op, name, noTp, adaptor.getOperands());
     return success();
   }
 };