Organize dispatching of thread data for better reuse of code

Change-Id: I8c156f8b5a50f6fa4dfb5218cdadb2840ff556eb

runtime/helpers/basic_math.h

@@ -1,23 +1,8 @@
 /*
- * Copyright (c) 2017, Intel Corporation
+ * Copyright (C) 2017-2018 Intel Corporation
  *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
+ * SPDX-License-Identifier: MIT
  *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
  */
 
 #pragma once
@@ -164,5 +149,15 @@ inline size_t computeTotalElementsCount(const Vec3<size_t> &inputVector) {
     return xDim * yDim * zDim;
 }
 
+template <typename T>
+bool isPow2(T val) {
+    if (val != 0) {
+        if ((val & (val - 1)) == 0) {
+            return true;
+        }
+    }
+    return false;
+}
+
 } // namespace Math
 } // namespace OCLRT