Added count_nonzero to paddle_frontend (#23282)

Co-authored-by: Aryan Sharma <[email protected]>
Co-authored-by: danielmunioz <[email protected]>

ivy/functional/frontends/paddle/math.py

@@ -134,6 +134,15 @@ def cosh(x, name=None):
     return ivy.cosh(x)
 
 
+@with_supported_dtypes(
+    {"2.5.1 and below": ("int32", "int64", "float16", "float32", "float64", "bool")},
+    "paddle",
+)
+@to_ivy_arrays_and_back
+def count_nonzero(x, axis=None, keepdim=False, name=None):
+    return ivy.astype(ivy.count_nonzero(x, axis=axis, keepdims=keepdim), ivy.int64)
+
+
 @with_supported_dtypes(
     {
         "2.5.1 and below": (

ivy_tests/test_ivy/test_frontends/test_paddle/test_math.py

@@ -586,6 +586,38 @@ def test_paddle_cosh(
     )
 
 
+# count_nonzero
+@handle_frontend_test(
+    fn_tree="paddle.count_nonzero",
+    dtype_and_x=helpers.dtype_values_axis(
+        available_dtypes=helpers.get_dtypes(kind="integer"),
+        valid_axis=True,
+        force_int_axis=True,
+        min_num_dims=1,
+    ),
+)
+def test_paddle_count_nonzero(
+    *,
+    dtype_and_x,
+    on_device,
+    fn_tree,
+    frontend,
+    backend_fw,
+    test_flags,
+):
+    input_dtype, x, axis = dtype_and_x
+    helpers.test_frontend_function(
+        input_dtypes=input_dtype,
+        backend_to_test=backend_fw,
+        on_device=on_device,
+        fn_tree=fn_tree,
+        test_flags=test_flags,
+        frontend=frontend,
+        x=x[0],
+        axis=axis,
+    )
+
+
 # cumprod
 @handle_frontend_test(
     fn_tree="paddle.cumprod",