Implement Cast operator in dynamic fusion

The operator is migrated into dynamic fusion for all data types supported
Resolves: COMPMID-5693

Change-Id: I3c550d3d1cd04570f453beae678c3f60d4cb1a73
Signed-off-by: Gunes Bayir <gunes.bayir@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/8755
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>

2 files changed, 158 insertions, 0 deletions

diff --git a/arm_compute/dynamic_fusion/sketch/attributes/CastAttributes.h b/arm_compute/dynamic_fusion/sketch/attributes/CastAttributes.h
new file mode 100644
index 0000000000..59efc8bd5d
--- /dev/null
+++ b/arm_compute/dynamic_fusion/sketch/attributes/CastAttributes.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2022 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_DYNAMIC_FUSION_SKETCH_ATTRIBUTES_CASTATTRIBUTES
+#define ARM_COMPUTE_DYNAMIC_FUSION_SKETCH_ATTRIBUTES_CASTATTRIBUTES
+
+#include "arm_compute/core/Types.h"
+
+namespace arm_compute
+{
+namespace experimental
+{
+namespace dynamic_fusion
+{
+/** Attributes are backend-agnostic parameters (in addition to the input/output tensors) of an operator.
+ */
+
+/** Cast attributes */
+class CastAttributes
+{
+public:
+    /** Set Data Type to be casted to */
+    CastAttributes &data_type(const DataType &data_type);
+    /** Get Data Type to be casted to */
+    DataType data_type() const;
+    /** Set Policy */
+    CastAttributes &convert_policy(const ConvertPolicy &policy);
+    /** Get Policy */
+    ConvertPolicy convert_policy() const;
+
+private:
+    DataType      _data_type{};                               /**< Data Type to be casted to */
+    ConvertPolicy _convert_policy{ ConvertPolicy::SATURATE }; /**< Convert Policy */
+};
+} // namespace dynamic_fusion
+} // namespace experimental
+} // namespace arm_compute
+
+#endif /* ARM_COMPUTE_DYNAMIC_FUSION_SKETCH_ATTRIBUTES_CASTATTRIBUTES */
diff --git a/arm_compute/dynamic_fusion/sketch/gpu/operators/GpuCast.h b/arm_compute/dynamic_fusion/sketch/gpu/operators/GpuCast.h
new file mode 100644
index 0000000000..4b427be06a
--- /dev/null
+++ b/arm_compute/dynamic_fusion/sketch/gpu/operators/GpuCast.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2022 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_DYNAMIC_FUSION_SKETCH_GPU_OPERATORS_GPUCAST
+#define ARM_COMPUTE_DYNAMIC_FUSION_SKETCH_GPU_OPERATORS_GPUCAST
+
+#include "arm_compute/core/ITensorInfo.h"
+#include "arm_compute/dynamic_fusion/sketch/attributes/CastAttributes.h"
+
+namespace arm_compute
+{
+namespace experimental
+{
+namespace dynamic_fusion
+{
+/** Forward declaration */
+class GpuWorkloadContext;
+class GpuWorkloadSketch;
+
+/** Operator interface. */
+class GpuCast final
+{
+public:
+    /** Attributes are a set of backend-agnostic parameters that define what an operator does */
+    using Attributes = CastAttributes;
+    /** Create an operator and fuse it into the workload sketch.
+     *    @note If @ref validate_op() fails, the creation also fails and may throw an error.
+     *    @note If @ref validate_op() fails, @p sketch remains unchanged and valid.
+     *
+     * Valid data type configurations:
+     * |src            |dst                                    |
+     * |:--------------|:--------------------------------------|
+     * |U8             | S8, U16, S16, U32, S32, F16, F32      |
+     * |U16            | U8, S8, S16, U32, S32, F16, F32       |
+     * |S16            | U8, S8, U16, U32, S32, F16, F32       |
+     * |U32            | U8, S8, U16, S16, S32, F16, F32       |
+     * |S32            | U8, S8, U16, S16, U32, F16, F32       |
+     * |F16            | U8, S8, U16, S16, U32, S32, F32       |
+     * |F32            | U8, S8, U16, S16, U32, S32, F16       |
+     *
+     * Input data type must be different than output data type.
+     *
+     * Valid data layouts:
+     * - Any
+     *
+     * @param[in,out] sketch     Workload sketch into which the operator will be fused
+     * @param[in]     src        Left hand side tensor info. Data types supported: U8/S8/U16/S16/U32/S32/F16/F32.
+     * @param[out]    dst        Destination tensor info. Data types supported: U8/S8/U16/S16/U32/S32/F16/F32.
+     *                           If an uninitialized ITensorInfo is passed in, it will be auto-initialized
+     * @param[in]     attributes Operator attributes
+     */
+    static void create_op(GpuWorkloadSketch &sketch,
+                          ITensorInfo       *src,
+                          ITensorInfo       *dst,
+                          const Attributes &attributes);
+    /** Check if the operator configuration is supported, irrespective of fusion
+     *
+     * @param[in]  context    Workload context within which the operator is running
+     * @param[in]  src        Left hand side tensor info. Data types supported: All.
+     * @param[out] dst        Destination tensor info. Data types supported: All.
+     *                        If an uninitialized ITensorInfo is passed in, it will be auto-initialized
+     * @param[in]  attributes Operator attributes
+     */
+    static Status is_supported_op(const GpuWorkloadContext &context,
+                                  const ITensorInfo        *src,
+                                  const ITensorInfo        *dst,
+                                  const Attributes         &attributes);
+    /** Validate the operator and check if the its configuration is supported and if it can be fused into the workload sketch.
+     *  Similar to @ref GpuCast::create_op()
+     */
+    static Status validate_op(const GpuWorkloadSketch &sketch,
+                              const ITensorInfo       *src,
+                              const ITensorInfo       *dst,
+                              const Attributes        &attributes);
+};
+} // namespace dynamic_fusion
+} // namespace experimental
+} // namespace arm_compute
+#endif /* ARM_COMPUTE_DYNAMIC_FUSION_SKETCH_GPU_OPERATORS_GPUCAST */