COMPMID-793 : Add graph intermediate representation

Change-Id: Ic1685de4e19e0ac79669ef2da64e1dc96c7ea0bf
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/115248
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/arm_compute/graph2/frontend/Types.h b/arm_compute/graph2/frontend/Types.h
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+++ b/arm_compute/graph2/frontend/Types.h
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+/*
+ * 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_GRAPH2_STREAM_TYPES_H__
+#define __ARM_COMPUTE_GRAPH2_STREAM_TYPES_H__
+
+#include "arm_compute/graph2/Types.h"
+
+namespace arm_compute
+{
+namespace graph2
+{
+namespace frontend
+{
+// Import types for graph
+using graph2::DataType;
+using graph2::TensorShape;
+
+using graph2::ActivationLayerInfo;
+using graph2::NormalizationLayerInfo;
+using graph2::NormType;
+using graph2::PadStrideInfo;
+using graph2::PoolingLayerInfo;
+using graph2::PoolingType;
+using graph2::Target;
+using graph2::ConvolutionMethod;
+using graph2::DepthwiseConvolutionMethod;
+using graph2::TensorDescriptor;
+using graph2::DimensionRoundingType;
+
+/** Branch layer merging method */
+enum class BranchMergeMethod
+{
+    DEPTH_CONCATENATE, /**< Concatenate across depth */
+    ADD                /**< Adds the results of each stream */
+};
+
+/** Hints that can be passed to the stream to expose parameterization */
+struct StreamHints
+{
+    Target                     target_hint                       = { Target::UNSPECIFIED };                 /**< Target execution hint */
+    ConvolutionMethod          convolution_method_hint           = { ConvolutionMethod::DEFAULT };          /**< Convolution method hint */
+    DepthwiseConvolutionMethod depthwise_convolution_method_hint = { DepthwiseConvolutionMethod::DEFAULT }; /**< Depthwise Convolution method hint */
+};
+} // namespace frontend
+} // namespace graph2
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_GRAPH2_STREAM_TYPES_H__ */
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