COMPMID-2644: Add is_dynamic flag to ITensorInfo.

Flag indicates if tensor shape is determined dynamically in
kernel/function execution.

Change-Id: I7f6f9557571316e1eaf8c7aaf9f5b9262c2e1751
Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1850
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

3 files changed, 39 insertions, 6 deletions

diff --git a/arm_compute/core/ITensorInfo.h b/arm_compute/core/ITensorInfo.h
index f113445fb7..5aa243ecf8 100644
--- a/arm_compute/core/ITensorInfo.h
+++ b/arm_compute/core/ITensorInfo.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2018 ARM Limited.
+ * Copyright (c) 2016-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -200,6 +200,11 @@ public:
      * @return True if the tensor size can be changed.
      */
     virtual bool is_resizable() const = 0;
+    /** Flag indicating whether the shape of the tensor is dynamic, meaning that it can change on kernel/function execution.
+     *
+     * @return True if its dynamic else false
+     */
+    virtual bool is_dynamic() const = 0;
     /** Set the flag whether the tensor size can be changed.
      *
      * @param[in] is_resizable Flag that marks the tensor if it can be changed or not.
@@ -207,6 +212,13 @@ public:
      * @return Reference to this ITensorInfo object
      */
     virtual ITensorInfo &set_is_resizable(bool is_resizable) = 0;
+    /** Set the flag whether the tensor size is dynamic.
+     *
+     * @param[in] is_dynamic Flag that marks the tensor if it's dynamic.
+     *
+     * @return Reference to this ITensorInfo object
+     */
+    virtual ITensorInfo &set_is_dynamic(bool is_dynamic) = 0;
     /** Valid region of the tensor. All elements in the valid region have defined values, i.e. are not undefined.
      *
      * @return The valid region.
@@ -274,5 +286,5 @@ public:
         return std::pair<TensorShape, ValidRegion>(bc_shape, bc_valid_region);
     }
 };
-}
+} // namespace arm_compute
 #endif /*__ARM_COMPUTE_TENSORINFO_H__ */
diff --git a/arm_compute/core/SubTensorInfo.h b/arm_compute/core/SubTensorInfo.h
index 681e27033e..3de31deb44 100644
--- a/arm_compute/core/SubTensorInfo.h
+++ b/arm_compute/core/SubTensorInfo.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2018 ARM Limited.
+ * Copyright (c) 2017-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -186,12 +186,23 @@ public:
         ARM_COMPUTE_ERROR_ON(_parent == nullptr);
         return _parent->is_resizable();
     }
+    bool is_dynamic() const override
+    {
+        ARM_COMPUTE_ERROR_ON(_parent == nullptr);
+        return _parent->is_dynamic();
+    }
     ITensorInfo &set_is_resizable(bool is_resizable) override
     {
         ARM_COMPUTE_ERROR_ON(_parent == nullptr);
         _parent->set_is_resizable(is_resizable);
         return *this;
     }
+    ITensorInfo &set_is_dynamic(bool is_dynamic) override
+    {
+        ARM_COMPUTE_ERROR_ON(_parent == nullptr);
+        _parent->set_is_dynamic(is_dynamic);
+        return *this;
+    }
     ValidRegion valid_region() const override
     {
         return _valid_region;
@@ -224,5 +235,5 @@ private:
     ValidRegion  _valid_region;
     bool         _extend_parent;
 };
-}
+} // namespace arm_compute
 #endif /*__ARM_COMPUTE_SUBTENSORINFO_H__ */
diff --git a/arm_compute/core/TensorInfo.h b/arm_compute/core/TensorInfo.h
index 1eaf052d8e..77913f52f9 100644
--- a/arm_compute/core/TensorInfo.h
+++ b/arm_compute/core/TensorInfo.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2018 ARM Limited.
+ * Copyright (c) 2016-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -277,11 +277,20 @@ public:
     {
         return _is_resizable;
     }
+    bool is_dynamic() const override
+    {
+        return _is_dynamic;
+    }
     ITensorInfo &set_is_resizable(bool is_resizable) override
     {
         _is_resizable = is_resizable;
         return *this;
     }
+    ITensorInfo &set_is_dynamic(bool is_dynamic) override
+    {
+        _is_dynamic = is_dynamic;
+        return *this;
+    }
     ValidRegion valid_region() const override
     {
         return _valid_region;
@@ -314,10 +323,11 @@ private:
     DataType         _data_type;
     Format           _format;
     bool             _is_resizable;
+    bool             _is_dynamic;
     ValidRegion      _valid_region;
     PaddingSize      _padding;
     QuantizationInfo _quantization_info;
     DataLayout       _data_layout;
 };
-}
+} // namespace arm_compute
 #endif /*__ARM_COMPUTE_TENSORINFO_H__ */