COMPMID-1995: Prepare Graph to support different input/output quantization info

- Added support for different input/output qinfo in ActivationLayer and DepthwiseConv
- Added support for different input/output qinfo in ConcatenateLayer introducing ConcatDescriptor
- Added reshape validate
- Allow OutputLayer to return a specific connection index from the input
- Not run Inplace and Depth mutator when input/output quantization info are different

Change-Id: I03f5e416fc43ddd284e1501887202a3145f76d8a
Signed-off-by: Isabella Gottardi <isabella.gottardi@arm.com>
Reviewed-on: https://review.mlplatform.org/c/852
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
diff --git a/arm_compute/graph/backends/FunctionHelpers.h b/arm_compute/graph/backends/FunctionHelpers.h
index d0035d9..4a423d2 100644
--- a/arm_compute/graph/backends/FunctionHelpers.h
+++ b/arm_compute/graph/backends/FunctionHelpers.h
@@ -109,7 +109,7 @@
     ARM_COMPUTE_LOG_GRAPH_INFO("Instantiated "
                                << node.name()
                                << " Type: " << node.type()
-                               << " Target " << TargetInfo::TargetType
+                               << " Target: " << TargetInfo::TargetType
                                << " Data Type: " << input->info()->data_type()
                                << " Shape: " << input->info()->tensor_shape()
                                << " Activation function: " << act_info.activation()
@@ -245,8 +245,10 @@
     func->configure(input, output, deltas, bbox_info);
 
     // Log info
-    ARM_COMPUTE_LOG_GRAPH_INFO("Instantiated " << node.type()
-                               << " Target " << TargetInfo::TargetType
+    ARM_COMPUTE_LOG_GRAPH_INFO("Instantiated "
+                               << node.name()
+                               << " Type: " << node.type()
+                               << " Target: " << TargetInfo::TargetType
                                << " Data Type: " << input->info()->data_type()
                                << " Shape: " << input->info()->tensor_shape()
                                << " BoundingBox Info img W: " << bbox_info.img_width() << " "
@@ -326,6 +328,12 @@
     func->configure(inputs, output, concat_axis);
 
     // Log info
+    const bool         is_quantized = is_data_type_quantized_asymmetric(output->info()->data_type());
+    std::ostringstream qss;
+    if(is_quantized)
+    {
+        qss << " Output QuantInfo: " << output->info()->quantization_info();
+    }
     ARM_COMPUTE_LOG_GRAPH_INFO("Instantiated "
                                << node.name()
                                << " Type: " << node.type()
@@ -334,6 +342,7 @@
                                << " Shape: " << output->info()->tensor_shape()
                                << " Num Inputs: " << inputs.size()
                                << " Axis: " << concat_axis
+                               << qss.str()
                                << std::endl);
 
     return std::move(func);
@@ -421,10 +430,10 @@
                                << " Target: " << TargetInfo::TargetType
                                << " Data Type: " << input->info()->data_type()
                                << " Groups: " << num_groups
-                               << qss.str()
                                << " Input shape: " << input->info()->tensor_shape()
                                << " Weights shape: " << weights->info()->tensor_shape()
                                << " Output shape: " << output->info()->tensor_shape()
+                               << qss.str()
                                << (fused_act.enabled() ? " " + to_string(fused_act.activation()) : "")
                                << std::endl);
     return func;
@@ -536,11 +545,11 @@
                                << " Type: " << func_name
                                << " Target: " << TargetInfo::TargetType
                                << " Data Type: " << input->info()->data_type()
-                               << qss.str()
                                << " Input shape: " << input->info()->tensor_shape()
                                << " Weights shape: " << weights->info()->tensor_shape()
                                << " Output shape: " << output->info()->tensor_shape()
                                << " Depth multiplier: " << depth_multiplier
+                               << qss.str()
                                << (fused_act.enabled() ? " " + to_string(fused_act.activation()) : "")
                                << std::endl);
     return func;
@@ -1177,8 +1186,10 @@
     func->configure(input, rois, output, pool_info);
 
     // Log info
-    ARM_COMPUTE_LOG_GRAPH_INFO("Instantiated " << node.type()
-                               << " Target " << TargetInfo::TargetType
+    ARM_COMPUTE_LOG_GRAPH_INFO("Instantiated "
+                               << node.name()
+                               << " Type: " << node.type()
+                               << " Target: " << TargetInfo::TargetType
                                << " Data Type: " << input->info()->data_type()
                                << " Input shape: " << input->info()->tensor_shape()
                                << " Output shape: " << output->info()->tensor_shape()
diff --git a/arm_compute/graph/backends/ValidateHelpers.h b/arm_compute/graph/backends/ValidateHelpers.h
index 8942be2..dbf8f35 100644
--- a/arm_compute/graph/backends/ValidateHelpers.h
+++ b/arm_compute/graph/backends/ValidateHelpers.h
@@ -203,6 +203,7 @@
 
     return status;
 }
+
 /** Validates a detection output layer node
  *
  * @tparam DetectionOutputLayer DetectionOutput layer type
@@ -372,6 +373,29 @@
     return ReorgLayer::validate(input, output, node.stride());
 }
 
+/** Validates a Reshape layer node
+ *
+ * @tparam ReshapeLayer Reshape layer type
+ *
+ * @param[in] node Node to validate
+ *
+ * @return Status
+ */
+template <typename ReshapeLayer>
+Status validate_reshape_layer(ReshapeLayerNode &node)
+{
+    ARM_COMPUTE_LOG_GRAPH_VERBOSE("Validating ReshapeLayer node with ID : " << node.id() << " and Name: " << node.name() << std::endl);
+    ARM_COMPUTE_RETURN_ERROR_ON(node.num_inputs() != 1);
+    ARM_COMPUTE_RETURN_ERROR_ON(node.num_outputs() != 1);
+
+    // Extract input and output
+    arm_compute::ITensorInfo *input  = detail::get_backing_tensor_info(node.input(0));
+    arm_compute::ITensorInfo *output = detail::get_backing_tensor_info(node.output(0));
+
+    // Validate function
+    return ReshapeLayer::validate(input, output);
+}
+
 /** Validates a ROI Align layer node
  *
  * @tparam ROIAlignLayer ROIAlign layer type