Fix broadcast add and subtract gradient calculation #2465
Merged
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The gradient calculation of operators
add
andsubtract
are not correct when broadcasting is used in the forward pass. Fix the gradient calculation by changingbroadcast_to_like
tocollapse_sum_like
in gradient functions of these two ops.Thanks for contributing to TVM! Please refer to guideline https://docs.tvm.ai/contribute/ for useful information and tips. After the pull request is submitted, please request code reviews from Reviewers.