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[BUG Fix] Fix cumsum dtype bug #74830

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Merged
merged 3 commits into from
Aug 23, 2025
Merged

[BUG Fix] Fix cumsum dtype bug #74830

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1e7c934
fix cumsum dtype bug
DrRyanHuang Aug 22, 2025
f5b640a
add unitest
DrRyanHuang Aug 22, 2025
33e96f0
Merge branch 'develop' into fix_cumsum
DrRyanHuang Aug 22, 2025
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22 changes: 13 additions & 9 deletions python/paddle/tensor/math.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4194,15 +4194,19 @@ def cumsum(
flatten = True
else:
flatten = False
if dtype is not None and x.dtype != convert_np_dtype_to_dtype_(dtype):
x = cast(x, dtype)
elif isinstance(x, paddle.Tensor) and x.dtype in [
paddle.uint8,
paddle.int8,
paddle.int16,
paddle.int32,
]:
x = cast(x, "int64")

if dtype is None:
if x.dtype in [
paddle.uint8,
paddle.int8,
paddle.int16,
paddle.int32,
]:
x = cast(x, "int64")
else:
dtype = convert_np_dtype_to_dtype_(dtype)
if x.dtype != dtype:
x = cast(x, dtype)

if in_dynamic_or_pir_mode():
if axis is None:
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