From 1813422f5095983fa802e96cb8e9e0d980de82c7 Mon Sep 17 00:00:00 2001
From: Georgios Pinitas <georgios.pinitas@arm.com>
Date: Thu, 3 Sep 2020 21:00:23 +0100
Subject: COMPMID-3583: Add S32 support to NEElementwiseDivision

Division follows the flooring division approach where for example 5/2=2 while
-5/2=-3

Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Change-Id: I65756e0b31fe8d97f743a4c13dc5f96304722f75
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3929
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
---
 tests/validation/reference/ElementwiseOperations.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'tests/validation/reference')

diff --git a/tests/validation/reference/ElementwiseOperations.cpp b/tests/validation/reference/ElementwiseOperations.cpp
index aab9d9d00c..f22c84e153 100644
--- a/tests/validation/reference/ElementwiseOperations.cpp
+++ b/tests/validation/reference/ElementwiseOperations.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2019 Arm Limited.
+ * Copyright (c) 2018-2020 Arm Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -74,6 +74,15 @@ T arithm_op(ArithmeticOperation op, T src1, T src2, ConvertPolicy convert_policy
         case ArithmeticOperation::DIV:
         {
             val = (static_cast<intermediate_type>(src1) / static_cast<intermediate_type>(src2));
+            if(std::is_integral<T>::value)
+            {
+                // Implement flooring division
+                val = (src2 == 0) ? 0 : val;
+                if(static_cast<int32_t>(src1) % static_cast<int32_t>(src2) != 0 && ((src1 < 0) != (src2 < 0)))
+                {
+                    --val;
+                }
+            }
             break;
         }
         case ArithmeticOperation::POWER:
-- 
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