[TFLite] Support quantized GREATER op in TFLite frontend

Support GREATER quantization operation conversion as part of issue apache#9187

python/tvm/relay/frontend/tflite.py

@@ -1399,12 +1399,7 @@ def convert_minimum(self, op):
 
     def convert_greater(self, op):
         """Convert TFLite GREATER"""
-        # Check if the input tensor is quantized, call QNN op
-        if self.is_quantized(op):
-            raise tvm.error.OpNotImplemented(
-                "TFlite quantized GREATER operator is not supported yet."
-            )
-        return self._convert_elemwise(_op.greater, op)
+        return self._convert_elemwise(_op.greater, op, self.is_quantized(op))
 
     def convert_squared_difference(self, op):
         """Convert TFLite SQUARED DIFFERENCE"""

tests/python/frontend/tflite/test_forward.py

@@ -2332,9 +2332,15 @@ def _test_minimum(data, fused_activation_function=None, quantized=False, qnn_op=
 # -------
 
 
-def _test_greater(data):
+def _test_greater(data, fused_activation_function=None, quantized=False, qnn_op=None):
     """One iteration of greater"""
-    return _test_elemwise(math_ops.greater, data)
+    return _test_elemwise(
+        math_ops.greater,
+        data,
+        fused_activation_function,
+        quantized,
+        qnn_op,
+    )
 
 
 #######################################################################
@@ -2418,7 +2424,7 @@ def _test_floor_mod(data):
 
 
 def _test_forward_elemwise(testop):
-    """Elewise"""
+    """Elemwise"""
     testop(
         [
             np.arange(6.0, dtype=np.float32).reshape((2, 1, 1, 3)),
@@ -2486,9 +2492,9 @@ def test_all_elemwise():
     _test_forward_elemwise_quantized(_test_maximum)
     _test_forward_elemwise(_test_minimum)
     _test_forward_elemwise_quantized(_test_minimum)
-    _test_forward_elemwise(_test_greater)
     _test_forward_elemwise(_test_squared_difference)
     _test_forward_elemwise(_test_greater_equal)
+    _test_forward_elemwise(_test_greater)
     _test_forward_elemwise(_test_less)
     _test_forward_elemwise(_test_less_equal)
     _test_forward_elemwise(_test_equal)