From d24affe0abefe8f4a83c7d4487386920895fd2e7 Mon Sep 17 00:00:00 2001
From: Sang-Hoon Park <sang-hoon.park@arm.com>
Date: Tue, 8 Oct 2019 18:07:23 +0100
Subject: COMPMID-2265 add support for Log Softmax to NEON

Kernel (NEON/reference), validation tests, function and fixture
are updated to add support for Log Softmax

Change-Id: I641dbf1552f4128c691af8875949ebf88da71ee8
Signed-off-by: Sang-Hoon Park <sang-hoon.park@arm.com>
Reviewed-on: https://review.mlplatform.org/c/2075
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
---
 tests/validation/reference/LogSoftmaxLayer.cpp | 61 ++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 tests/validation/reference/LogSoftmaxLayer.cpp

(limited to 'tests/validation/reference/LogSoftmaxLayer.cpp')

diff --git a/tests/validation/reference/LogSoftmaxLayer.cpp b/tests/validation/reference/LogSoftmaxLayer.cpp
new file mode 100644
index 0000000000..3f21d85dd0
--- /dev/null
+++ b/tests/validation/reference/LogSoftmaxLayer.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 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.
+ */
+#include "LogSoftmaxLayer.h"
+#include "SoftmaxLayer.h"
+
+#include "arm_compute/core/Types.h"
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+namespace reference
+{
+template <typename T, typename std::enable_if<is_floating_point<T>::value, int>::type>
+SimpleTensor<T> log_softmax_layer(const SimpleTensor<T> &src, float beta, size_t axis)
+{
+    return softmax_layer_generic<T>(src, beta, axis, true);
+}
+
+template <typename T, typename std::enable_if<std::is_same<T, uint8_t>::value, int>::type>
+SimpleTensor<T> log_softmax_layer(const SimpleTensor<T> &src, float beta, size_t axis)
+{
+    // Note: Output quantization info should always have scale = 1/256 and offset = 0
+    const QuantizationInfo output_quantization_info = QuantizationInfo(1.f / 256, 0);
+
+    SimpleTensor<float> src_tmp = convert_from_asymmetric(src);
+    SimpleTensor<float> dst_tmp = log_softmax_layer<float>(src_tmp, beta, axis);
+    SimpleTensor<T>     dst     = convert_to_asymmetric<uint8_t>(dst_tmp, output_quantization_info);
+    return dst;
+}
+
+template SimpleTensor<float> log_softmax_layer(const SimpleTensor<float> &src, float beta, size_t axis);
+template SimpleTensor<half> log_softmax_layer(const SimpleTensor<half> &src, float beta, size_t axis);
+template SimpleTensor<uint8_t> log_softmax_layer(const SimpleTensor<uint8_t> &src, float beta, size_t axis);
+} // namespace reference
+} // namespace validation
+} // namespace test
+} // namespace arm_compute
-- 
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