commit c91dd1cb65c63c792c1c973a1e200cd8e484d8a2
author Fredrik Svedberg <fredrik.svedberg@arm.com> Mon May 04 15:40:04 2020 +0200
committer Tim Hall <tim.hall@arm.com> Thu Jun 18 17:53:52 2020 +0100
tree c8e5fc31655aa1147ae3c8877f7fdbba03f7434b
parent 3c678298241eb7c3e216bc9f79125ba06c216ec8

MLBEDSW-819: int16 changes for advanced add/sub

Updated scaling for advanced add/sub.

Change-Id: I89eaff0cf5c33dcc94e8a3eeed4187771e0d8d63
Signed-off-by: Fredrik Svedberg <fredrik.svedberg@arm.com>

ethosu/vela/scaling.py

diff --git a/ethosu/vela/scaling.py b/ethosu/vela/scaling.py
index 785cddc..ce0259a 100644
--- a/ethosu/vela/scaling.py
+++ b/ethosu/vela/scaling.py
@@ -88,7 +88,7 @@
     # Always scale the smaller of the input scales
     max_input_scale = max(input1_scale, input2_scale)
     min_input_scale = min(input1_scale, input2_scale)
-    input_shift = 20 if bitdepth == 8 else 14
+    input_shift = 20 if bitdepth == 8 else 15
     op_to_scale = OperandToScale.OPa if input1_scale < input2_scale else OperandToScale.OPb
 
     input1_rescale, _, out_scale, out_shift = simplified_elementwise_add_sub_scale(