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Support math trunc #2653

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Merged
merged 3 commits into from
Oct 27, 2025
Merged

Support math trunc #2653

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a6712b7
support match trunc
titaiwangms Oct 23, 2025
7d30b1f
only use cast
titaiwangms Oct 27, 2025
6a084dd
add note
titaiwangms Oct 27, 2025
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8 changes: 8 additions & 0 deletions onnxscript/function_libs/torch_lib/ops/core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8533,6 +8533,14 @@ def aten_trunc(self: TFloat) -> TFloat:
return op.Floor(op.Abs(self)) * op.Sign(self)


@torch_op("math::trunc", trace_only=True)
def python_math_trunc(self: TFloat) -> TInt:
"""trunc(Tensor self) -> Tensor"""
# Reference https://github.com/onnx/onnx/issues/4588#issuecomment-2658170591
result = op.Floor(op.Abs(self)) * op.Sign(self)
return op.Cast(result, to=INT64.dtype)


@torch_op("aten::type_as", trace_only=True)
def aten_type_as(self: TTensor, other: TTensor2) -> TTensor2:
"""type_as(Tensor self, Tensor other) -> Tensor"""
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