COMPMID-3238 modify reference kernel of layer normalization for QSYMM16

Specialize the reference kernel for enhanced QLSTM use-case.
- More specific function name is used to reduce confusion.
- Logic inside has been changed to match with the expected behavior of
  actual kernel

Change-Id: I1bed5fce1709a658c5a8f85f178dc41a265255ed
Signed-off-by: Sang-Hoon Park <sang-hoon.park@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/2933
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/tests/validation/reference/QLSTMLayerNormalization.h b/tests/validation/reference/QLSTMLayerNormalization.h
new file mode 100644
index 0000000000..c35aa2a867
--- /dev/null
+++ b/tests/validation/reference/QLSTMLayerNormalization.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2020 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_TEST_QLSTM_LAYER_NORMALIZATION_H
+#define ARM_COMPUTE_TEST_QLSTM_LAYER_NORMALIZATION_H
+
+#include "tests/SimpleTensor.h"
+#include "tests/validation/Helpers.h"
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+namespace reference
+{
+SimpleTensor<int16_t> qlstm_layer_normalization(const SimpleTensor<int16_t> &src, const SimpleTensor<int16_t> &weight, const SimpleTensor<int32_t> &bias);
+} // namespace reference
+} // namespace validation
+} // namespace test
+} // namespace arm_compute
+
+#endif /* ARM_COMPUTE_TEST_QLSTM_LAYER_NORMALIZATION_H */