COMPMID-1758: NEON: Implement Range

Change-Id: I56dff9462b85760fbed6db43224cadb90d283810
Reviewed-on: https://review.mlplatform.org/472
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 71 insertions, 0 deletions

diff --git a/arm_compute/runtime/NEON/functions/NERange.h b/arm_compute/runtime/NEON/functions/NERange.h
new file mode 100644
index 0000000000..d888c5106d
--- /dev/null
+++ b/arm_compute/runtime/NEON/functions/NERange.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2018-2019 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_NERANGE_H__
+#define __ARM_COMPUTE_NERANGE_H__
+
+#include "arm_compute/core/NEON/kernels/NERangeKernel.h"
+#include "arm_compute/core/Types.h"
+#include "arm_compute/runtime/IFunction.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** Basic function to run @ref NERangeKernel
+ *
+ * @note The tensor data type for the output must be U8/S8/U16/S16/U32/S32/F16/F32.
+ * @note The function performs generates a sequence with the given start, end and step.
+ */
+class NERange : public IFunction
+{
+public:
+    /** Default constructor */
+    NERange();
+    /** Initialize the kernel's start, end, step and output tensor.
+     *
+     * @param[out] output Output tensor. Data types supported: U8/S8/U16/S16/U32/S32/F16/F32.
+     * @param[in]  start  The starting value of the sequence.
+     * @param[in]  end    The ending (not including) value of the sequence.
+     * @param[in]  step   The gap between each pair of values in the sequence. Default is 1.
+     */
+    void configure(ITensor *output, float start, float end, float step = 1.f);
+    /** Static function to check if given info will lead to a valid configuration of @ref NERange
+     *
+     * @param[in] output Output tensor info. Data types supported: U8/S8/U16/S16/U32/S32/F16/F32.
+     * @param[in] start  The starting value of the sequence.
+     * @param[in] end    The ending (not including) value of the sequence.
+     * @param[in] step   The gap between each pair of values in the sequence. Default is 1.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *output, float start, float end, float step = 1.f);
+
+    // Inherited methods overridden:
+    void run() override;
+
+private:
+    NERangeKernel _kernel;
+};
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_NERANGE_H__ */