COMPMID-2408: Add QSYMM16 support for ElementwiseAddition for NEON

Change-Id: I22991e9369ffba9b51a94522ff4977933e887b94
Signed-off-by: Manuel Bottini <manuel.bottini@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1352
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Giuseppe Rossini <giuseppe.rossini@arm.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/arm_compute/core/QuantizationInfo.h b/arm_compute/core/QuantizationInfo.h
index 94f7e76c3e..06c9b61154 100644
--- a/arm_compute/core/QuantizationInfo.h
+++ b/arm_compute/core/QuantizationInfo.h
@@ -25,6 +25,7 @@
 #define __ARM_COMPUTE_QUANTIZATION_INFO_H__
 
 #include "arm_compute/core/Rounding.h"
+#include "utils/misc/Utility.h"
 
 #include <cstddef>
 #include <vector>
@@ -255,5 +256,57 @@ inline float dequantize_qsymm8(int8_t value, const QuantizationInfo &qinfo)
 {
     return value * qinfo.uniform().scale;
 }
+
+/** Quantize a value given a 16-bit symmetric quantization scheme
+ *
+ * @param[in] value           Value to quantize
+ * @param[in] qinfo           Quantization information to use for quantizing
+ * @param[in] rounding_policy (Optional) Rounding policy to use. Default: nearest up
+ *
+ * @return Quantized value
+ */
+inline int16_t quantize_qsymm16(float value, const UniformQuantizationInfo &qinfo, RoundingPolicy rounding_policy = RoundingPolicy::TO_NEAREST_UP)
+{
+    int quantized = arm_compute::round(value / qinfo.scale, rounding_policy);
+    quantized     = arm_compute::utility::clamp<int, int16_t>(quantized);
+    return quantized;
+}
+
+/** Dequantize a value given a 16-bit symmetric quantization scheme
+ *
+ * @param[in] value Value to dequantize
+ * @param[in] qinfo Quantization information to use for dequantizing
+ *
+ * @return Dequantized value
+ */
+inline float dequantize_qsymm16(int16_t value, const UniformQuantizationInfo &qinfo)
+{
+    return value * qinfo.scale;
+}
+
+/** Quantize a value given a 16-bit symmetric quantization scheme
+ *
+ * @param[in] value Value to quantize
+ * @param[in] qinfo Quantization information to use for quantizing
+ *
+ * @return Quantized value
+ */
+inline int16_t quantize_qsymm16(float value, const QuantizationInfo &qinfo)
+{
+    return quantize_qsymm16(value, qinfo.uniform());
+}
+
+/** Dequantize a value given a 16-bit symmetric quantization scheme
+ *
+ * @param[in] value Value to dequantize
+ * @param[in] qinfo Quantization information to use for dequantizing
+ *
+ * @return Dequantized value
+ */
+inline float dequantize_qsymm16(int16_t value, const QuantizationInfo &qinfo)
+{
+    return dequantize_qsymm16(value, qinfo.uniform());
+}
+
 } // namespace arm_compute
 #endif /*__ARM_COMPUTE_QUANTIZATION_INFO_H__ */
\ No newline at end of file