COMPMID-1310: Create graph validation executables.

Change-Id: I9e0b57b1b83fe5a95777cdaeddba6ecef650bafc
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/138697
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>

5 files changed, 120 insertions, 247 deletions

diff --git a/arm_compute/graph/Graph.h b/arm_compute/graph/Graph.h
index 16f5f97986..2a776826e5 100644
--- a/arm_compute/graph/Graph.h
+++ b/arm_compute/graph/Graph.h
@@ -72,7 +72,7 @@ public:
      * @tparam NT Node operation
      * @tparam Ts Arguments to operation
      *
-     * @param args Node arguments
+     * @param[in] args Node arguments
      *
      * @return ID of the node
      */
@@ -114,9 +114,11 @@ public:
     GraphID id() const;
     /** Returns graph input nodes
      *
-     * @return vector containing the graph inputs
+     * @param[in] type Type of nodes to return
+     *
+     * @return vector containing the graph node of given type
      */
-    const std::vector<NodeID> &inputs();
+    const std::vector<NodeID> &nodes(NodeType type);
     /** Returns nodes of graph
      *
      * @warning Nodes can be nullptr if they have been removed during the mutation steps of the graph
@@ -238,10 +240,7 @@ inline NodeID Graph::add_node(Ts &&... args)
     node->set_id(nid);
 
     // Keep track of input nodes
-    if(node->type() == NodeType::Input)
-    {
-        _tagged_nodes[NodeType::Input].push_back(nid);
-    }
+    _tagged_nodes[node->type()].push_back(nid);
 
     // Associate a new tensor with each output
     for(auto &output : node->_outputs)
diff --git a/arm_compute/graph/TypeLoader.h b/arm_compute/graph/TypeLoader.h
new file mode 100644
index 0000000000..77f096133d
--- /dev/null
+++ b/arm_compute/graph/TypeLoader.h
@@ -0,0 +1,105 @@
+/*
+ * 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_TYPE_LOADER_H__
+#define __ARM_COMPUTE_GRAPH_TYPE_LOADER_H__
+
+#include "arm_compute/graph/Types.h"
+
+#include <istream>
+
+namespace arm_compute
+{
+/** Converts a string to a strong types enumeration @ref DataType
+ *
+ * @param[in] name String to convert
+ *
+ * @return Converted DataType enumeration
+ */
+arm_compute::DataType data_type_from_name(const std::string &name);
+
+/** Input Stream operator for @ref DataType
+ *
+ * @param[in]  stream    Stream to parse
+ * @param[out] data_type Output data type
+ *
+ * @return Updated stream
+ */
+inline ::std::istream &operator>>(::std::istream &stream, arm_compute::DataType &data_type)
+{
+    std::string value;
+    stream >> value;
+    data_type = data_type_from_name(value);
+    return stream;
+}
+
+/** Converts a string to a strong types enumeration @ref DataLayout
+ *
+ * @param[in] name String to convert
+ *
+ * @return Converted DataLayout enumeration
+ */
+arm_compute::DataLayout data_layout_from_name(const std::string &name);
+
+/** Input Stream operator for @ref DataLayout
+ *
+ * @param[in]  stream      Stream to parse
+ * @param[out] data_layout Output data layout
+ *
+ * @return Updated stream
+ */
+inline ::std::istream &operator>>(::std::istream &stream, arm_compute::DataLayout &data_layout)
+{
+    std::string value;
+    stream >> value;
+    data_layout = data_layout_from_name(value);
+    return stream;
+}
+
+namespace graph
+{
+/** Converts a string to a strong types enumeration @ref Target
+ *
+ * @param[in] name String to convert
+ *
+ * @return Converted Target enumeration
+ */
+Target target_from_name(const std::string &name);
+
+/** Input Stream operator for @ref Target
+ *
+ * @param[in]  stream Stream to parse
+ * @param[out] target Output target
+ *
+ * @return Updated stream
+ */
+inline ::std::istream &operator>>(::std::istream &stream, Target &target)
+{
+    std::string value;
+    stream >> value;
+    target = target_from_name(value);
+    return stream;
+}
+} // namespace graph
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_GRAPH_TYPE_LOADER_H__ */
diff --git a/arm_compute/graph/TypePrinter.h b/arm_compute/graph/TypePrinter.h
index 177a5e2f38..c3601f2373 100644
--- a/arm_compute/graph/TypePrinter.h
+++ b/arm_compute/graph/TypePrinter.h
@@ -28,89 +28,12 @@
 #include "arm_compute/core/Types.h"
 #include "arm_compute/graph/Types.h"
 
+#include "utils/TypePrinter.h"
+
 namespace arm_compute
 {
 namespace graph
 {
-/** Formatted output of the Dimensions type. */
-template <typename T>
-inline ::std::ostream &operator<<(::std::ostream &os, const arm_compute::Dimensions<T> &dimensions)
-{
-    if(dimensions.num_dimensions() > 0)
-    {
-        os << dimensions[0];
-
-        for(unsigned int d = 1; d < dimensions.num_dimensions(); ++d)
-        {
-            os << "x" << dimensions[d];
-        }
-    }
-
-    return os;
-}
-
-/** Formatted output of the Size2D type. */
-inline ::std::ostream &operator<<(::std::ostream &os, const Size2D &size)
-{
-    os << size.width << "x" << size.height;
-
-    return os;
-}
-
-/** Formatted output of the DataType type. */
-inline ::std::ostream &operator<<(::std::ostream &os, const DataType &data_type)
-{
-    switch(data_type)
-    {
-        case DataType::UNKNOWN:
-            os << "UNKNOWN";
-            break;
-        case DataType::U8:
-            os << "U8";
-            break;
-        case DataType::QASYMM8:
-            os << "QASYMM8";
-            break;
-        case DataType::S8:
-            os << "S8";
-            break;
-        case DataType::U16:
-            os << "U16";
-            break;
-        case DataType::S16:
-            os << "S16";
-            break;
-        case DataType::U32:
-            os << "U32";
-            break;
-        case DataType::S32:
-            os << "S32";
-            break;
-        case DataType::U64:
-            os << "U64";
-            break;
-        case DataType::S64:
-            os << "S64";
-            break;
-        case DataType::F16:
-            os << "F16";
-            break;
-        case DataType::F32:
-            os << "F32";
-            break;
-        case DataType::F64:
-            os << "F64";
-            break;
-        case DataType::SIZET:
-            os << "SIZET";
-            break;
-        default:
-            ARM_COMPUTE_ERROR("NOT_SUPPORTED!");
-    }
-
-    return os;
-}
-
 /** Formatted output of the Target. */
 inline ::std::ostream &operator<<(::std::ostream &os, const Target &target)
 {
@@ -135,24 +58,6 @@ inline ::std::ostream &operator<<(::std::ostream &os, const Target &target)
     return os;
 }
 
-/** Formatted output of the DataLayout */
-inline ::std::ostream &operator<<(::std::ostream &os, const DataLayout &data_layout)
-{
-    switch(data_layout)
-    {
-        case DataLayout::NCHW:
-            os << "NCHW";
-            break;
-        case DataLayout::NHWC:
-            os << "NHWC";
-            break;
-        default:
-            ARM_COMPUTE_ERROR("NOT_SUPPORTED!");
-    }
-
-    return os;
-}
-
 inline ::std::ostream &operator<<(::std::ostream &os, const NodeType &node_type)
 {
     switch(node_type)
@@ -224,100 +129,6 @@ inline ::std::ostream &operator<<(::std::ostream &os, const NodeType &node_type)
     return os;
 }
 
-/** Formatted output of the activation function type. */
-inline ::std::ostream &operator<<(::std::ostream &os, const ActivationLayerInfo::ActivationFunction &act_function)
-{
-    switch(act_function)
-    {
-        case ActivationLayerInfo::ActivationFunction::ABS:
-            os << "ABS";
-            break;
-        case ActivationLayerInfo::ActivationFunction::LINEAR:
-            os << "LINEAR";
-            break;
-        case ActivationLayerInfo::ActivationFunction::LOGISTIC:
-            os << "LOGISTIC";
-            break;
-        case ActivationLayerInfo::ActivationFunction::RELU:
-            os << "RELU";
-            break;
-        case ActivationLayerInfo::ActivationFunction::BOUNDED_RELU:
-            os << "BOUNDED_RELU";
-            break;
-        case ActivationLayerInfo::ActivationFunction::LEAKY_RELU:
-            os << "LEAKY_RELU";
-            break;
-        case ActivationLayerInfo::ActivationFunction::SOFT_RELU:
-            os << "SOFT_RELU";
-            break;
-        case ActivationLayerInfo::ActivationFunction::SQRT:
-            os << "SQRT";
-            break;
-        case ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU:
-            os << "LU_BOUNDED_RELU";
-            break;
-        case ActivationLayerInfo::ActivationFunction::SQUARE:
-            os << "SQUARE";
-            break;
-        case ActivationLayerInfo::ActivationFunction::TANH:
-            os << "TANH";
-            break;
-        default:
-            ARM_COMPUTE_ERROR("NOT_SUPPORTED!");
-    }
-
-    return os;
-}
-
-inline std::string to_string(const ActivationLayerInfo::ActivationFunction &act_function)
-{
-    std::stringstream str;
-    str << act_function;
-    return str.str();
-}
-
-/** Formatted output of the PoolingType type. */
-inline ::std::ostream &operator<<(::std::ostream &os, const PoolingType &pool_type)
-{
-    switch(pool_type)
-    {
-        case PoolingType::AVG:
-            os << "AVG";
-            break;
-        case PoolingType::MAX:
-            os << "MAX";
-            break;
-        case PoolingType::L2:
-            os << "L2";
-            break;
-        default:
-            ARM_COMPUTE_ERROR("NOT_SUPPORTED!");
-    }
-
-    return os;
-}
-
-/** Formatted output of the NormType type. */
-inline ::std::ostream &operator<<(::std::ostream &os, const NormType &norm_type)
-{
-    switch(norm_type)
-    {
-        case NormType::CROSS_MAP:
-            os << "CROSS_MAP";
-            break;
-        case NormType::IN_MAP_1D:
-            os << "IN_MAP_1D";
-            break;
-        case NormType::IN_MAP_2D:
-            os << "IN_MAP_2D";
-            break;
-        default:
-            ARM_COMPUTE_ERROR("NOT_SUPPORTED!");
-    }
-
-    return os;
-}
-
 /** Formatted output of the EltwiseOperation type. */
 inline ::std::ostream &operator<<(::std::ostream &os, const EltwiseOperation &eltwise_op)
 {
@@ -401,52 +212,6 @@ inline ::std::ostream &operator<<(::std::ostream &os, const DepthwiseConvolution
 
     return os;
 }
-
-/** Formatted output of the PadStrideInfo type. */
-inline ::std::ostream &operator<<(::std::ostream &os, const PadStrideInfo &pad_stride_info)
-{
-    os << pad_stride_info.stride().first << "," << pad_stride_info.stride().second;
-    os << ";";
-    os << pad_stride_info.pad_left() << "," << pad_stride_info.pad_right() << ","
-       << pad_stride_info.pad_top() << "," << pad_stride_info.pad_bottom();
-
-    return os;
-}
-
-/** Formatted output of the QuantizationInfo type. */
-inline ::std::ostream &operator<<(::std::ostream &os, const QuantizationInfo &quantization_info)
-{
-    os << "Scale:" << quantization_info.scale << "~"
-       << "Offset:" << quantization_info.offset;
-    return os;
-}
-
-/** Formatted output of the Interpolation policy type.
- *
- * @param[out] os     Output stream.
- * @param[in]  policy Interpolation policy to output.
- *
- * @return Modified output stream.
- */
-inline ::std::ostream &operator<<(::std::ostream &os, const InterpolationPolicy &policy)
-{
-    switch(policy)
-    {
-        case InterpolationPolicy::NEAREST_NEIGHBOR:
-            os << "NEAREST NEIGHBOR";
-            break;
-        case InterpolationPolicy::BILINEAR:
-            os << "BILINEAR";
-            break;
-        case InterpolationPolicy::AREA:
-            os << "AREA";
-            break;
-        default:
-            ARM_COMPUTE_ERROR("NOT_SUPPORTED!");
-    }
-
-    return os;
-}
 } // namespace graph
 } // namespace arm_compute
 #endif /* __ARM_COMPUTE_GRAPH_TYPE_PRINTER_H__ */
diff --git a/arm_compute/graph/algorithms/BFS.h b/arm_compute/graph/algorithms/BFS.h
index 36ca872f15..97292d733b 100644
--- a/arm_compute/graph/algorithms/BFS.h
+++ b/arm_compute/graph/algorithms/BFS.h
@@ -85,7 +85,7 @@ inline std::vector<NodeID> bfs(Graph &g)
     std::list<NodeID> queue;
 
     // Push inputs and mark as visited
-    for(auto &input : g.inputs())
+    for(auto &input : g.nodes(NodeType::Input))
     {
         if(input != EmptyNodeID)
         {
diff --git a/arm_compute/graph/detail/ExecutionHelpers.h b/arm_compute/graph/detail/ExecutionHelpers.h
index 23dd207695..3a357776e4 100644
--- a/arm_compute/graph/detail/ExecutionHelpers.h
+++ b/arm_compute/graph/detail/ExecutionHelpers.h
@@ -95,13 +95,17 @@ void call_all_const_node_accessors(Graph &g);
 /** Call all input node accessors
  *
  * @param[in] workload Workload to execute
+ *
+ * @return  True if all the accesses were valid
  */
-void call_all_input_node_accessors(ExecutionWorkload &workload);
+bool call_all_input_node_accessors(ExecutionWorkload &workload);
 /** Call all output node accessors
  *
  * @param[in] workload Workload to execute
+ *
+ * @return  True if all the accessors expect more data
  */
-void call_all_output_node_accessors(ExecutionWorkload &workload);
+bool call_all_output_node_accessors(ExecutionWorkload &workload);
 /** Prepares all tasks for execution
  *
  * @param[in] workload Workload to prepare