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/src/graph/backends/NEON/NEDeviceBackend.cpp b/src/graph/backends/NEON/NEDeviceBackend.cpp
new file mode 100644
index 0000000..87f88df
--- /dev/null
+++ b/src/graph/backends/NEON/NEDeviceBackend.cpp
@@ -0,0 +1,146 @@
+/*
+ * 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.
+ */
+#include "arm_compute/graph/backends/NEON/NEDeviceBackend.h"
+
+#include "arm_compute/graph/Graph.h"
+#include "arm_compute/graph/GraphContext.h"
+#include "arm_compute/graph/INode.h"
+#include "arm_compute/graph/Logger.h"
+#include "arm_compute/graph/Tensor.h"
+#include "arm_compute/graph/backends/BackendRegistrar.h"
+#include "arm_compute/graph/backends/NEON/NEFunctionFactory.h"
+#include "arm_compute/graph/backends/NEON/NENodeValidator.h"
+#include "arm_compute/graph/backends/NEON/NESubTensorHandle.h"
+#include "arm_compute/graph/backends/NEON/NETensorHandle.h"
+
+#include "arm_compute/core/TensorInfo.h"
+#include "arm_compute/runtime/Allocator.h"
+#include "arm_compute/runtime/BlobLifetimeManager.h"
+#include "arm_compute/runtime/MemoryManagerOnDemand.h"
+#include "arm_compute/runtime/OffsetLifetimeManager.h"
+#include "arm_compute/runtime/PoolManager.h"
+#include "arm_compute/runtime/Scheduler.h"
+
+#include "support/ToolchainSupport.h"
+
+namespace arm_compute
+{
+namespace graph
+{
+namespace backends
+{
+/** Register NEON backend */
+static detail::BackendRegistrar<NEDeviceBackend> NEDeviceBackend_registrar(Target::NEON);
+
+NEDeviceBackend::NEDeviceBackend()
+    : _allocator()
+{
+}
+
+void NEDeviceBackend::initialize_backend()
+{
+}
+
+void NEDeviceBackend::setup_backend_context(GraphContext &ctx)
+{
+    // Set number of threads
+    Scheduler::get().set_num_threads(ctx.config().num_threads);
+
+    // Create function level memory manager
+    if(ctx.memory_management_ctx(Target::NEON) == nullptr)
+    {
+        MemoryManagerContext mm_ctx;
+        mm_ctx.target = Target::NEON;
+        mm_ctx.mm     = create_memory_manager(MemoryManagerAffinity::Buffer);
+
+        ctx.insert_memory_management_ctx(std::move(mm_ctx));
+    }
+}
+
+bool NEDeviceBackend::is_backend_supported()
+{
+    return true;
+}
+
+std::unique_ptr<ITensorHandle> NEDeviceBackend::create_tensor(const Tensor &tensor)
+{
+    // Get tensor descriptor
+    const TensorDescriptor &tensor_desc = tensor.desc();
+    ARM_COMPUTE_ERROR_ON(tensor_desc.target != Target::NEON);
+
+    // Create backend tensor handle
+    TensorInfo info(tensor_desc.shape, 1, tensor_desc.data_type);
+    auto       backend_tensor_handle = support::cpp14::make_unique<NETensorHandle>(info);
+
+    return std::move(backend_tensor_handle);
+}
+
+std::unique_ptr<ITensorHandle> NEDeviceBackend::create_subtensor(ITensorHandle *parent, TensorShape shape, Coordinates coords, bool extend_parent)
+{
+    if(parent == nullptr)
+    {
+        return nullptr;
+    }
+
+    return support::cpp14::make_unique<NESubTensorHandle>(parent, shape, coords, extend_parent);
+}
+
+std::unique_ptr<arm_compute::IFunction> NEDeviceBackend::configure_node(INode &node, GraphContext &ctx)
+{
+    ARM_COMPUTE_LOG_GRAPH_VERBOSE("Configuring NEON node with ID : " << node.id() << std::endl);
+    ARM_COMPUTE_ERROR_ON(node.assigned_target() != Target::NEON);
+
+    // Configure node
+    return NEFunctionFactory::create(&node, ctx);
+}
+
+arm_compute::Status NEDeviceBackend::validate_node(INode &node)
+{
+    ARM_COMPUTE_LOG_GRAPH_VERBOSE("Validating NEON node with ID : " << node.id() << std::endl);
+    ARM_COMPUTE_ERROR_ON(node.assigned_target() != Target::NEON);
+
+    return NENodeValidator::validate(&node);
+}
+
+std::shared_ptr<arm_compute::IMemoryManager> NEDeviceBackend::create_memory_manager(MemoryManagerAffinity affinity)
+{
+    std::shared_ptr<ILifetimeManager> lifetime_mgr = nullptr;
+    if(affinity == MemoryManagerAffinity::Buffer)
+    {
+        lifetime_mgr = std::make_shared<BlobLifetimeManager>();
+    }
+    else
+    {
+        lifetime_mgr = std::make_shared<OffsetLifetimeManager>();
+    }
+    auto pool_mgr = std::make_shared<PoolManager>();
+    auto mm       = std::make_shared<MemoryManagerOnDemand>(lifetime_mgr, pool_mgr);
+
+    mm->set_allocator(&_allocator);
+
+    return mm;
+}
+} // namespace backends
+} // namespace graph
+} // namespace arm_compute
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