COMPMID-2501: Support multiplier > 1 during QASYMM8 requantization for Quantized LSTM

Change-Id: I7eddbdf77881f313b707b9e59428245f1330a2cf
Signed-off-by: Manuel Bottini <manuel.bottini@arm.com>
Reviewed-on: https://review.mlplatform.org/c/2119
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Marquez <pablo.tello@arm.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/tests/validation/reference/GEMMLowp.cpp b/tests/validation/reference/GEMMLowp.cpp
index 97d05327e7..4283cb5bac 100644
--- a/tests/validation/reference/GEMMLowp.cpp
+++ b/tests/validation/reference/GEMMLowp.cpp
@@ -112,7 +112,14 @@ void quantize_down_int32_to_int16_scale_by_fixedpoint(const SimpleTensor<T> *in,
         }
 
         // Fixed point multiplication
-        result = asymm_rounding_divide_by_pow2(asymm_int_mult(result, result_fixedpoint_multiplier), result_shift);
+        if(result_shift < 0)
+        {
+            result = asymm_int_mult(result * (1 << (-result_shift)), result_fixedpoint_multiplier);
+        }
+        else
+        {
+            result = asymm_rounding_divide_by_pow2(asymm_int_mult(result, result_fixedpoint_multiplier), result_shift);
+        }
 
         // Bounded ReLu
         if(min != max)