From 668ccdcfb81bfab3a2d44cd1ddd956e83a2dfb09 Mon Sep 17 00:00:00 2001
From: Sang-Hoon Park <sang-hoon.park@arm.com>
Date: Wed, 3 Feb 2021 10:32:59 +0000
Subject: Add dynamic tensor support to CpuElementwise

The kernels and operators for binary and unary operations
are now capable of being configured with dynamic shapes and
computing windows at run-time.

Additionally, changing arguments' names is done
for consistency.

Partially Implements: COMPMID-4127

Change-Id: I48e5038692db667dec7cb2b2906fe5683214fe19
Signed-off-by: Sang-Hoon Park <sang-hoon.park@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4973
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Marquez Tello <pablo.tello@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
---
 arm_compute/core/IKernel.h     |  7 ++++++-
 arm_compute/core/ITensorInfo.h | 24 ++++++++++++++++++++++--
 arm_compute/core/TensorInfo.h  |  2 +-
 3 files changed, 29 insertions(+), 4 deletions(-)

(limited to 'arm_compute/core')

diff --git a/arm_compute/core/IKernel.h b/arm_compute/core/IKernel.h
index 11132f20a9..98fd18cc91 100644
--- a/arm_compute/core/IKernel.h
+++ b/arm_compute/core/IKernel.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2019 Arm Limited.
+ * Copyright (c) 2016-2021 Arm Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -57,6 +57,11 @@ public:
      * @return The maximum window the kernel can be executed on.
      */
     const Window &window() const;
+    /** Function to check if the embedded window of this kernel has been configured
+     *
+     * @return True if the windows has been configured
+     */
+    bool is_window_configured() const;
 
 protected:
     /** Configure the kernel's window
diff --git a/arm_compute/core/ITensorInfo.h b/arm_compute/core/ITensorInfo.h
index 9ddafce7c0..0171e31086 100644
--- a/arm_compute/core/ITensorInfo.h
+++ b/arm_compute/core/ITensorInfo.h
@@ -41,8 +41,24 @@ class ITensorInfo : public misc::ICloneable<ITensorInfo>
 {
 public:
     using TensorDimsState = Coordinates;
-
-public:
+    /** Get the value representing dynamic dimension state
+     *
+     * @return Value representing dynamic dimension state
+     *
+     */
+    static constexpr int32_t get_dynamic_state_value()
+    {
+        return _dynamic_dimension;
+    }
+    /** Get the value representing static dimension state
+     *
+     * @return Value representing static dimension state
+     *
+     */
+    static constexpr int32_t get_static_state_value()
+    {
+        return _static_dimension;
+    }
     /** Default virtual destructor */
     virtual ~ITensorInfo() = default;
     /** Set the data type to the specified value.
@@ -297,6 +313,10 @@ public:
 
         return std::pair<TensorShape, ValidRegion>(bc_shape, bc_valid_region);
     }
+
+private:
+    static constexpr int32_t _dynamic_dimension = -1;
+    static constexpr int32_t _static_dimension  = 0;
 };
 } // namespace arm_compute
 #endif /*ARM_COMPUTE_TENSORINFO_H */
diff --git a/arm_compute/core/TensorInfo.h b/arm_compute/core/TensorInfo.h
index 42a969e01b..633daca063 100644
--- a/arm_compute/core/TensorInfo.h
+++ b/arm_compute/core/TensorInfo.h
@@ -293,7 +293,7 @@ public:
     }
     bool is_dynamic() const override
     {
-        return std::find(std::cbegin(_dims_state), std::cend(_dims_state), -1) != std::cend(_dims_state);
+        return std::find(std::cbegin(_dims_state), std::cend(_dims_state), get_dynamic_state_value()) != std::cend(_dims_state);
     }
     ITensorInfo &set_is_resizable(bool is_resizable) override
     {
-- 
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