From 9f9755bf0decec0e457cf591a182235000ef2bca Mon Sep 17 00:00:00 2001
From: Tlopex <68688494+tlopex@users.noreply.github.com>
Date: Mon, 18 Sep 2023 00:18:16 +0800
Subject: [PATCH 1/3] make not_equal quantized

---
 python/tvm/relay/frontend/tflite.py | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/python/tvm/relay/frontend/tflite.py b/python/tvm/relay/frontend/tflite.py
index 98920b1e496a..1427d5d6d849 100644
--- a/python/tvm/relay/frontend/tflite.py
+++ b/python/tvm/relay/frontend/tflite.py
@@ -1500,10 +1500,6 @@ def convert_equal(self, op):
 
     def convert_not_equal(self, op):
         """Convert TFLite NOT_EQUAL"""
-        if self.is_quantized(op):
-            raise tvm.error.OpNotImplemented(
-                "TFlite quantized NOT_EQUAL operator is not supported yet."
-            )
         return self._convert_elemwise(_op.not_equal, op)
 
     def _convert_logical_binary(self, relay_op, op):

From 046d922ef60568927f780f16d71b27e3ca6bc041 Mon Sep 17 00:00:00 2001
From: Tlopex <68688494+tlopex@users.noreply.github.com>
Date: Mon, 18 Sep 2023 00:20:34 +0800
Subject: [PATCH 2/3] add tests to quantized not_equal

---
 tests/python/frontend/tflite/test_forward.py | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/tests/python/frontend/tflite/test_forward.py b/tests/python/frontend/tflite/test_forward.py
index 1552580ff400..51d66c97e446 100644
--- a/tests/python/frontend/tflite/test_forward.py
+++ b/tests/python/frontend/tflite/test_forward.py
@@ -2728,9 +2728,17 @@ def _test_equal(data, fused_activation_function=None, quantized=False, qnn_op=No
 # ---------
 
 
-def _test_not_equal(data):
+def _test_not_equal(data, fused_activation_function=None, quantized=False, qnn_op=None):
     """One iteration of not_equal"""
-    return _test_elemwise(math_ops.not_equal, data)
+    return _test_elemwise(
+        math_ops.not_equal,
+        data,
+        fused_activation_function,
+        quantized,
+        qnn_op,
+        same_qnn_params=True,
+        comparison_op=True,
+    )
 
 
 #######################################################################
@@ -2833,6 +2841,7 @@ def _test_elemwise_qnn_out_range(qnn_op):
         _test_floor_divide: (-150, 150),
         _test_less: (-150, 150),
         _test_floor_mod: (-150, 150),
+        _test_not_equal: (-150, 150),
     }
 
     return qnn_out_range[qnn_op]
@@ -2873,6 +2882,7 @@ def test_all_elemwise():
     _test_forward_elemwise(_test_equal)
     _test_forward_elemwise_quantized(_test_equal)
     _test_forward_elemwise(_test_not_equal)
+    _test_forward_elemwise_quantized(_test_not_equal)
     if package_version.parse(tf.VERSION) >= package_version.parse("1.14.0"):
         _test_forward_elemwise(_test_floor_divide)
         _test_forward_elemwise_quantized(_test_floor_divide)

From 217a2c11582c7152170dcd76e333952a1cb87c9f Mon Sep 17 00:00:00 2001
From: Tlopex <68688494+tlopex@users.noreply.github.com>
Date: Mon, 18 Sep 2023 00:29:15 +0800
Subject: [PATCH 3/3] add quantized not_equal

---
 python/tvm/relay/frontend/tflite.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/tvm/relay/frontend/tflite.py b/python/tvm/relay/frontend/tflite.py
index 1427d5d6d849..eb59f368aa87 100644
--- a/python/tvm/relay/frontend/tflite.py
+++ b/python/tvm/relay/frontend/tflite.py
@@ -1500,7 +1500,7 @@ def convert_equal(self, op):
 
     def convert_not_equal(self, op):
         """Convert TFLite NOT_EQUAL"""
-        return self._convert_elemwise(_op.not_equal, op)
+        return self._convert_elemwise(_op.not_equal, op, self.is_quantized(op), comparison_op=True)
 
     def _convert_logical_binary(self, relay_op, op):
         """Generic method to convert logical binary ops"""