function setitem support with stride (#57023)

* function setitem support with stride

* fix ut

* remove redundant dygraph checks

* add unittest for basic slice output view

* add Ellipsis case

python/paddle/base/variable_index.py

@@ -18,6 +18,7 @@
 from . import core
 import paddle
 import warnings
+import itertools
 
 
 MAX_INTEGER = 2**31 - 1
@@ -854,16 +855,24 @@ def _setitem_static(x, indices, values):
         'decrease_axes': decrease_axes,
         'none_axes': none_axes,
     }
+
+    value_tensor = None
+    StartsTensorList = None
+    EndsTensorList = None
+    StepsTensorList = None
+
     if paddle.utils._contain_var(starts):
-        inputs['StartsTensorList'] = paddle.utils._convert_to_tensor_list(
-            starts
-        )
+        StartsTensorList = paddle.utils._convert_to_tensor_list(starts)
+        inputs['StartsTensorList'] = StartsTensorList
         del attrs['starts']
+
     if paddle.utils._contain_var(ends):
-        inputs['EndsTensorList'] = paddle.utils._convert_to_tensor_list(ends)
+        EndsTensorList = paddle.utils._convert_to_tensor_list(ends)
+        inputs['EndsTensorList'] = EndsTensorList
         del attrs['ends']
     if paddle.utils._contain_var(steps):
-        inputs['StepsTensorList'] = paddle.utils._convert_to_tensor_list(steps)
+        StepsTensorList = paddle.utils._convert_to_tensor_list(steps)
+        inputs['StepsTensorList'] = StepsTensorList
         del attrs['steps']
 
     if not has_advanced_index:
@@ -884,6 +893,8 @@ def _setitem_static(x, indices, values):
 
         elif isinstance(values, Variable):
             inputs["ValueTensor"] = values
+            value_tensor = values
+
         else:
             raise TypeError(
                 "Only support to assign an integer, float, numpy.ndarray or "
@@ -894,8 +905,14 @@ def _setitem_static(x, indices, values):
 
         # step3.1: Only basic indexing, use OP set_value to set value.
         if paddle.in_dynamic_mode():
-            x._bump_inplace_version()
-            output = x
+            return paddle._legacy_C_ops.set_value_(
+                x,
+                value_tensor,
+                StartsTensorList,
+                EndsTensorList,
+                StepsTensorList,
+                *itertools.chain.from_iterable(attrs.items())
+            )
         else:
             helper = paddle.base.layer_helper.LayerHelper(
                 'set_value', **locals()
@@ -909,21 +926,20 @@ def _setitem_static(x, indices, values):
                 output = helper.create_variable_for_type_inference(
                     dtype=x.dtype
                 )
-        cur_block = default_main_program().current_block()
-        cur_block.append_op(
-            type="set_value",
-            inputs=inputs,
-            outputs={'Out': output},
-            attrs=attrs,
-            inplace_map={"Input": "Out"},
-        )
+            cur_block = default_main_program().current_block()
+            cur_block.append_op(
+                type="set_value",
+                inputs=inputs,
+                outputs={'Out': output},
+                attrs=attrs,
+                inplace_map={"Input": "Out"},
+            )
 
-        if not paddle.in_dynamic_mode():
             # map var to the new output
             paddle.jit.api.ProgramTranslator.get_instance()._inplace_map.add(
                 cur_block.program, x.desc.id(), output
             )
-        return output
+            return output
     else:
         # step3.2: Case for there are advanced indexing.
         #   1. get __getitem__ result of basic indexing;
@@ -950,27 +966,19 @@ def _setitem_static(x, indices, values):
         ) = deal_advanced_index(sub_tensor, advanced_index, True)
         if not isinstance(values, Variable):
             values = paddle.assign(values).astype(transed_sub_tensor.dtype)
-        transed_sub_tensor = transed_sub_tensor.index_put(
-            adjusted_advanced_index, values
-        )
 
-        # NOTE(zoooo0820): now basic indexing of __getitem__ will return a new Tensor both in dynamic and static mode
-        # After strided is ready and basic indexing returns view of Tensor in dynamic mode. The code shoule be changed
-        # for dynamic mode.
         if paddle.in_dynamic_mode():
-            transed_sub_tensor.index_put_(adjusted_advanced_index, values)
+            return transed_sub_tensor.index_put_(
+                adjusted_advanced_index, values
+            )
         else:
             transed_sub_tensor = transed_sub_tensor.index_put(
                 adjusted_advanced_index, values
             )
 
-        transback_sub_tensor = transed_sub_tensor.transpose(transback_dim)
+            transback_sub_tensor = transed_sub_tensor.transpose(transback_dim)
+            inputs["ValueTensor"] = transback_sub_tensor
 
-        inputs["ValueTensor"] = transback_sub_tensor
-        if paddle.in_dynamic_mode():
-            x._bump_inplace_version()
-            output = x
-        else:
             helper = paddle.base.layer_helper.LayerHelper(
                 'set_value', **locals()
             )
@@ -983,20 +991,20 @@ def _setitem_static(x, indices, values):
                 output = helper.create_variable_for_type_inference(
                     dtype=x.dtype
                 )
-        cur_block = default_main_program().current_block()
-        cur_block.append_op(
-            type="set_value",
-            inputs=inputs,
-            outputs={'Out': output},
-            attrs=attrs,
-            inplace_map={"Input": "Out"},
-        )
-        if not paddle.in_dynamic_mode():
+            cur_block = default_main_program().current_block()
+            cur_block.append_op(
+                type="set_value",
+                inputs=inputs,
+                outputs={'Out': output},
+                attrs=attrs,
+                inplace_map={"Input": "Out"},
+            )
+
             # map var to the new output
             paddle.jit.api.ProgramTranslator.get_instance()._inplace_map.add(
                 cur_block.program, x.desc.id(), output
             )
-        return output
+            return output
 
 
 def get_tensor_with_basic_indexing(

test/indexing/test_getitem.py

@@ -433,6 +433,67 @@ def test_indexing_is_multi_dim_list(self):
         np.testing.assert_allclose(res[1], np_res)
 
 
+class TestGetitemBasicIndexOutputView(unittest.TestCase):
+    def setUp(self):
+        # Stride now only supports in dygraph mode
+        paddle.disable_static()
+
+    def test_index_is_int(self):
+        np_data = np.ones((5, 5, 5), dtype='float32')
+        np_tmp = np_data[3, 2]
+        np_tmp[2] = 20
+
+        x = paddle.ones((5, 5, 5), dtype='float32')
+        x_tmp = x[3, 2]
+        x_tmp[2] = 20
+
+        np.testing.assert_allclose(x.numpy(), np_data)
+
+    def test_index_is_0dTensor(self):
+        np_data = np.ones((5, 5, 5), dtype='float32')
+        np_tmp = np_data[3, 2]
+        np_tmp[2] = 20
+
+        x = paddle.ones((5, 5, 5), dtype='float32')
+        x_tmp = x[paddle.to_tensor(3), paddle.to_tensor(2)]
+        x_tmp[2] = 20
+
+        np.testing.assert_allclose(x.numpy(), np_data)
+
+    def test_index_is_slice(self):
+        np_data = np.ones((5, 5, 5), dtype='float32')
+        np_tmp = np_data[::2, :, 0:4]
+        np_tmp[2] = 20
+
+        x = paddle.ones((5, 5, 5), dtype='float32')
+        x_tmp = x[::2, :, 0:4]
+        x_tmp[2] = 20
+
+        np.testing.assert_allclose(x.numpy(), np_data)
+
+    def test_index_is_None(self):
+        np_data = np.ones((5, 5, 5), dtype='float32')
+        np_tmp = np_data[None]
+        np_tmp[:, 2] = 20
+
+        x = paddle.ones((5, 5, 5), dtype='float32')
+        x_tmp = x[None]
+        x_tmp[:, 2] = 20
+
+        np.testing.assert_allclose(x.numpy(), np_data)
+
+    def test_index_is_ellipsis(self):
+        np_data = np.ones((5, 5, 5), dtype='float32')
+        np_tmp = np_data[...]
+        np_tmp[2] = 20
+
+        x = paddle.ones((5, 5, 5), dtype='float32')
+        x_tmp = x[...]
+        x_tmp[2] = 20
+
+        np.testing.assert_allclose(x.numpy(), np_data)
+
+
 class TestGetItemErrorCase(unittest.TestCase):
     def setUp(self):
         paddle.disable_static()

test/legacy_test/test_set_value_op.py

@@ -1878,13 +1878,13 @@ def test_inplace(self):
             paddle.seed(100)
             a = paddle.rand(shape=[1, 4])
             a.stop_gradient = False
-            b = a[:]
+            b = a[:] * 1
             c = b
             b[paddle.zeros([], dtype='int32')] = 1.0
 
             self.assertTrue(id(b) == id(c))
             np.testing.assert_array_equal(b.numpy(), c.numpy())
-            self.assertEqual(b.inplace_version, 0)
+            self.assertEqual(b.inplace_version, 1)
 
         paddle.enable_static()