COMPMID-797: Switch to new graph.

- Cleaned up build system

Change-Id: If2faa27ee5b31fa8b972836960ab3ef671059c8d
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/126435
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Tello <pablo.tello@arm.com>
diff --git a/arm_compute/graph/INodeVisitor.h b/arm_compute/graph/INodeVisitor.h
new file mode 100644
index 0000000..b5446c4
--- /dev/null
+++ b/arm_compute/graph/INodeVisitor.h
@@ -0,0 +1,216 @@
+/*
+ * Copyright (c) 2018 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * 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:
+ *
+ * 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.
+ */
+#ifndef __ARM_COMPUTE_GRAPH_INODEVISITOR_H__
+#define __ARM_COMPUTE_GRAPH_INODEVISITOR_H__
+
+#include "arm_compute/graph/nodes/NodesFwd.h"
+
+namespace arm_compute
+{
+namespace graph
+{
+/**  Node visitor interface */
+class INodeVisitor
+{
+public:
+    /** Default destructor. */
+    virtual ~INodeVisitor() = default;
+    /** Visit INode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(INode &n) = 0;
+    /** Visit ActivationLayerNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(ActivationLayerNode &n) = 0;
+    /** Visit BatchNormalizationLayerNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(BatchNormalizationLayerNode &n) = 0;
+    /** Visit ConstNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(ConstNode &n) = 0;
+    /** Visit ConvolutionLayerNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(ConvolutionLayerNode &n) = 0;
+    /** Visit DepthConcatenateLayerNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(DepthConcatenateLayerNode &n) = 0;
+    /** Visit DepthwiseConvolutionLayerNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(DepthwiseConvolutionLayerNode &n) = 0;
+    /** Visit EltwiseLayerNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(EltwiseLayerNode &n) = 0;
+    /** Visit FlattenLayerNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(FlattenLayerNode &n) = 0;
+    /** Visit FullyConnectedLayerNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(FullyConnectedLayerNode &n) = 0;
+    /** Visit InputNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(InputNode &n) = 0;
+    /** Visit NormalizationLayerNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(NormalizationLayerNode &n) = 0;
+    /** Visit OutputNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(OutputNode &n) = 0;
+    /** Visit PoolingLayerNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(PoolingLayerNode &n) = 0;
+    /** Visit ReshapeLayerNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(ReshapeLayerNode &n) = 0;
+    /** Visit SoftmaxLayerNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(SoftmaxLayerNode &n) = 0;
+    /** Visit SplitLayerNode.
+     *
+     * @param[in] n Node to visit.
+     */
+    virtual void visit(SplitLayerNode &n) = 0;
+};
+
+/** Default visitor implementation
+ *
+ * Implements visit methods by calling a default function.
+ * Inherit from DefaultNodeVisitor if you don't want to provide specific implementation for all nodes.
+ */
+class DefaultNodeVisitor : public INodeVisitor
+{
+public:
+    /** Default destructor */
+    virtual ~DefaultNodeVisitor() = default;
+
+#ifndef DOXYGEN_SKIP_THIS
+    // Inherited methods overridden
+    virtual void visit(INode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(ActivationLayerNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(BatchNormalizationLayerNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(ConstNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(ConvolutionLayerNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(DepthConcatenateLayerNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(DepthwiseConvolutionLayerNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(EltwiseLayerNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(FlattenLayerNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(FullyConnectedLayerNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(InputNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(NormalizationLayerNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(OutputNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(PoolingLayerNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(ReshapeLayerNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(SoftmaxLayerNode &n) override
+    {
+        default_visit();
+    }
+    virtual void visit(SplitLayerNode &n) override
+    {
+        default_visit();
+    }
+#endif /* DOXYGEN_SKIP_THIS */
+
+    /** Function to be overloaded by the client and implement default behavior for the
+     *  non-overloaded visitors
+     */
+    virtual void default_visit() = 0;
+};
+} // namespace graph
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_GRAPH_INODEVISITOR_H__ */