fix tensordot #72139
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fix tensordot #72139
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| y = y.sum(dim_y, dtype=y.dtype).reshape(shape_y) | ||
| elif sy == 1: | ||
| shape_x[dim_x] = 1 | ||
| x = x.sum(dim_x).reshape(shape_x) | ||
| x = x.sum(dim_x, dtype=x.dtype).reshape(shape_x) |
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这里的逻辑应该是中间结果用int64存，然后最终结果转成int32，还是保持中间结果也是int32？如果输入中含有接近int32最大值的场景，哪一种比较合适呢？可以跟numpy或者torch对比一下这种场景下的数值溢出情况
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这个修改的意图是明确指定 sum 操作的输出数据类型与其输入数据类型保持一致。溢出这一块应该是由开发者处理，框架应该保证正确性（未指定dtype，输入int32，输出int32）
YqGe585
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May 7, 2025
* update * add test
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PR Category
User Experience
PR Types
Bug fixes
Description
当输入都为int32时，输出会是int64。