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diff --git a/contrib/labs/kerneltesting/conv2d/OperationUtils.h b/contrib/labs/kerneltesting/conv2d/OperationUtils.h
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+++ b/contrib/labs/kerneltesting/conv2d/OperationUtils.h
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+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_ML_NN_COMMON_OPERATIONS_UTILS_H
+#define ANDROID_ML_NN_COMMON_OPERATIONS_UTILS_H
+
+#include <cstdint>
+#include <vector>
+#include <ostream>
+
+#define LOG(ERROR) std::cerr
+
+// Macro to check if the input parameters for operation are valid or not.
+#define NN_CHECK(v)                                                     \
+  do {                                                                  \
+    if (!(v)) {                                                         \
+      LOG(ERROR) << "NN_CHECK failed: "  << #v << "'\n";                \
+      return false;                                                     \
+    }                                                                   \
+  } while(0);
+
+#define NN_CHECK_EQ(actual, expected)           \
+  NN_CHECK((actual) == (expected))
+
+#define NN_OPS_CHECK NN_CHECK
+
+enum PaddingScheme {
+    kPaddingUnknown = 0,
+    kPaddingSame = 1,
+    kPaddingValid = 2,
+};
+
+enum class FusedActivationFunc : int32_t {
+    NONE = 0,
+    RELU = 1,
+    RELU1 = 2,
+    RELU6 = 3,
+};
+
+
+#define ANDROID_NN_MACRO_DISPATCH(macro)                                    \
+    switch (activation) {                                                   \
+        case (int32_t) FusedActivationFunc::NONE:                           \
+            macro(kNone);                                                   \
+            break;                                                          \
+        case (int32_t) FusedActivationFunc::RELU:                           \
+            macro(kRelu);                                                   \
+            break;                                                          \
+        case (int32_t) FusedActivationFunc::RELU1:                          \
+            macro(kRelu1);                                                  \
+            break;                                                          \
+        case (int32_t) FusedActivationFunc::RELU6:                          \
+            macro(kRelu6);                                                  \
+            break;                                                          \
+        default:                                                            \
+            LOG(ERROR) << "Unsupported fused activation function type";     \
+            return false;                                                   \
+    }
+
+
+#endif // ANDROID_ML_NN_COMMON_OPERATIONS_UTILS_H