From cb7e029f460d7b826283011954722af16cbb9e91 Mon Sep 17 00:00:00 2001
From: Won Jeon <won.jeon@arm.com>
Date: Wed, 28 Jun 2023 22:34:38 +0000
Subject: Fix logical right shift operator for signed negative integers

The issue reported from https://jira.arm.com/browse/MLTOSA-688

Signed-off-by: Won Jeon <won.jeon@arm.com>
Change-Id: Id37100ba8bc2ac64b1f54788c6f765fedfab0816
---
 reference_model/src/ops/ewise_binary.cc | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/reference_model/src/ops/ewise_binary.cc b/reference_model/src/ops/ewise_binary.cc
index c697db0..57eab5f 100644
--- a/reference_model/src/ops/ewise_binary.cc
+++ b/reference_model/src/ops/ewise_binary.cc
@@ -327,21 +327,21 @@ int OpLogicalRightShift<Rank, Dtype>::register_fcn()
             this->fcn = [this](InEigenType a, InEigenType b) -> OutEigenType {
                 REQUIRE(b >= 0 && b <= 31, "OpLogicalRightShift: shift value %d is out of valid range [0, 31]",
                 (int32_t)b);
-                return static_cast<OutEigenType>(static_cast<int8_t>(a) >> b);
+                return static_cast<OutEigenType>(static_cast<int8_t>(static_cast<uint8_t>(a) >> b));
             };
             break;
         case DType_INT16:
             this->fcn = [this](InEigenType a, InEigenType b) -> OutEigenType {
                 REQUIRE(b >= 0 && b <= 31, "OpLogicalRightShift: shift value %d is out of valid range [0, 31]",
                 (int32_t)b);
-                return static_cast<OutEigenType>(static_cast<int16_t>(a) >> b);
+                return static_cast<OutEigenType>(static_cast<int16_t>(static_cast<uint16_t>(a) >> b));
             };
             break;
         case DType_INT32:
             this->fcn = [this](InEigenType a, InEigenType b) -> OutEigenType {
                 REQUIRE(b >= 0 && b <= 31, "OpLogicalRightShift: shift value %d is out of valid range [0, 31]",
                 (int32_t)b);
-                return static_cast<OutEigenType>(static_cast<int32_t>(a) >> b);
+                return static_cast<OutEigenType>(static_cast<int32_t>(static_cast<uint32_t>(a) >> b));
             };
             break;
         default:
-- 
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