COMPMID-676: Rework TensorInfo building

Change-Id: Ic98f64ffe30739437a1fe31ef98d83ee900741e3
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/95512
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

3 files changed, 32 insertions, 12 deletions

diff --git a/src/core/CL/kernels/CLSoftmaxLayerKernel.cpp b/src/core/CL/kernels/CLSoftmaxLayerKernel.cpp
index af4fd88593..5331f40838 100644
--- a/src/core/CL/kernels/CLSoftmaxLayerKernel.cpp
+++ b/src/core/CL/kernels/CLSoftmaxLayerKernel.cpp
@@ -386,11 +386,7 @@ void CLLogits1DNormKernel::configure(const ICLTensor *input, const ICLTensor *su
 
     // Output auto initialization if not yet initialized
     auto_init_if_empty(*output->info(),
-                       input->info()->tensor_shape(),
-                       1,
-                       output_data_type,
-                       input->info()->fixed_point_position(),
-                       allowed_quantization_info);
+                       input->info()->clone()->set_data_type(output_data_type).set_quantization_info(allowed_quantization_info));
 
     ARM_COMPUTE_ERROR_ON_MISMATCHING_SHAPES(input, output);
     if(!is_quantized_asymmetric)
diff --git a/src/core/SubTensorInfo.cpp b/src/core/SubTensorInfo.cpp
index 878283bd8e..4c558bfae9 100644
--- a/src/core/SubTensorInfo.cpp
+++ b/src/core/SubTensorInfo.cpp
@@ -26,6 +26,7 @@
 #include "arm_compute/core/Error.h"
 #include "arm_compute/core/Helpers.h"
 #include "arm_compute/core/Validate.h"
+#include "support/ToolchainSupport.h"
 
 using namespace arm_compute;
 
@@ -34,7 +35,7 @@ SubTensorInfo::SubTensorInfo()
 {
 }
 
-SubTensorInfo::SubTensorInfo(ITensorInfo *parent, const TensorShape &tensor_shape, const Coordinates &coords)
+SubTensorInfo::SubTensorInfo(ITensorInfo *parent, TensorShape tensor_shape, Coordinates coords)
     : _parent(parent), _tensor_shape(tensor_shape), _coords(coords), _valid_region{ Coordinates(), _tensor_shape }
 {
     ARM_COMPUTE_ERROR_ON(parent == nullptr);
@@ -50,7 +51,12 @@ SubTensorInfo::SubTensorInfo(ITensorInfo *parent, const TensorShape &tensor_shap
     _valid_region = ValidRegion{ coordinates, _tensor_shape };
 }
 
-void SubTensorInfo::set_tensor_shape(TensorShape shape)
+std::unique_ptr<ITensorInfo> SubTensorInfo::clone() const
+{
+    return support::cpp14::make_unique<SubTensorInfo>(*this);
+}
+
+ITensorInfo &SubTensorInfo::set_tensor_shape(TensorShape shape)
 {
     ARM_COMPUTE_ERROR_ON(_parent == nullptr);
     // Check if subtensor is valid if parent is configured
@@ -59,6 +65,7 @@ void SubTensorInfo::set_tensor_shape(TensorShape shape)
         ARM_COMPUTE_ERROR_ON_INVALID_SUBTENSOR(_parent->tensor_shape(), _coords, shape);
     }
     _tensor_shape = shape;
+    return *this;
 }
 
 bool SubTensorInfo::extend_padding(const PaddingSize &padding)
diff --git a/src/core/TensorInfo.cpp b/src/core/TensorInfo.cpp
index f3cd776497..a49b7b7e02 100644
--- a/src/core/TensorInfo.cpp
+++ b/src/core/TensorInfo.cpp
@@ -28,6 +28,7 @@
 #include "arm_compute/core/Helpers.h"
 #include "arm_compute/core/TensorInfo.h"
 #include "arm_compute/core/Validate.h"
+#include "support/ToolchainSupport.h"
 
 using namespace arm_compute;
 
@@ -314,19 +315,26 @@ bool TensorInfo::extend_padding(const PaddingSize &padding)
     return updated;
 }
 
-void TensorInfo::set_data_type(DataType data_type)
+std::unique_ptr<ITensorInfo> TensorInfo::clone() const
+{
+    return support::cpp14::make_unique<TensorInfo>(*this);
+}
+
+ITensorInfo &TensorInfo::set_data_type(DataType data_type)
 {
     _data_type = data_type;
     _format    = Format::UNKNOWN;
+    return *this;
 }
 
-void TensorInfo::set_num_channels(int num_channels)
+ITensorInfo &TensorInfo::set_num_channels(int num_channels)
 {
     _num_channels = num_channels;
     _format       = Format::UNKNOWN;
+    return *this;
 }
 
-void TensorInfo::set_format(Format format)
+ITensorInfo &TensorInfo::set_format(Format format)
 {
     _format = format;
 
@@ -340,9 +348,10 @@ void TensorInfo::set_format(Format format)
         ARM_COMPUTE_ERROR_ON(num_channels_from_format(format) != _num_channels);
         ARM_COMPUTE_ERROR_ON(data_type_from_format(format) != _data_type);
     }
+    return *this;
 }
 
-void TensorInfo::set_tensor_shape(TensorShape shape)
+ITensorInfo &TensorInfo::set_tensor_shape(TensorShape shape)
 {
     _tensor_shape                  = shape;
     _offset_first_element_in_bytes = 0;
@@ -361,13 +370,21 @@ void TensorInfo::set_tensor_shape(TensorShape shape)
     Coordinates coordinates;
     coordinates.set_num_dimensions(_tensor_shape.num_dimensions());
     _valid_region = ValidRegion{ coordinates, _tensor_shape };
+    return *this;
 }
 
-void TensorInfo::set_fixed_point_position(int fixed_point_position)
+ITensorInfo &TensorInfo::set_fixed_point_position(int fixed_point_position)
 {
     ARM_COMPUTE_ERROR_ON(_data_type == DataType::QS8 && (fixed_point_position < 1 || fixed_point_position > 6));
     ARM_COMPUTE_ERROR_ON(_data_type == DataType::QS16 && (fixed_point_position < 1 || fixed_point_position > 14));
     _fixed_point_position = fixed_point_position;
+    return *this;
+}
+
+ITensorInfo &TensorInfo::set_quantization_info(QuantizationInfo quantization_info)
+{
+    _quantization_info = quantization_info;
+    return *this;
 }
 
 size_t TensorInfo::offset_element_in_bytes(const Coordinates &pos) const