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[cherry-pick] range can not return shape when enable_static (#42275) #42292

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Apr 27, 2022
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[cherry-pick] range can not return shape when enable_static (#42275) #42292

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12 changes: 7 additions & 5 deletions python/paddle/fluid/layers/tensor.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1471,6 +1471,11 @@ def range(start, end, step, dtype, name=None):
# [3, 4, 5, 6]

"""
out_shape = None
if not isinstance(start, Variable) and not isinstance(
end, Variable) and not isinstance(step, Variable):
out_shape = [int(math.ceil((end - start) / step))]

if not isinstance(dtype, core.VarDesc.VarType):
dtype = convert_np_dtype_to_dtype_(dtype)

Expand Down Expand Up @@ -1501,11 +1506,6 @@ def range(start, end, step, dtype, name=None):
out.stop_gradient = True
return out

out_shape = None
if not isinstance(start, Variable) and not isinstance(
end, Variable) and not isinstance(step, Variable):
out_shape = [int(math.ceil((end - start) / step))]

check_dtype(dtype, 'dtype', ['float32', 'float64', 'int32', 'int64'],
'range/arange')
helper = LayerHelper('range', **locals())
Expand All @@ -1517,6 +1517,8 @@ def range(start, end, step, dtype, name=None):
'Step': step},
outputs={'Out': out})
out.stop_gradient = True
if out_shape is not None:
out.desc.set_shape(out_shape)
return out


Expand Down