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Close a couple edge case bugs: hadamard and addmm on empty inputs (#2177)

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* handle hadamard and addmm on empty inputs

* fix
This commit is contained in:
Awni Hannun
2025-05-12 10:48:57 -07:00
committed by GitHub
parent caaa3f1f8c
commit 8f3d208dce
5 changed files with 52 additions and 1 deletions
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8
mlx/backend/cpu/matmul.cpp
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@@ -132,6 +132,10 @@ void AddMM::eval_cpu(const std::vector<array>& inputs, array& out) {
throw std::runtime_error(
"[AddMM::eval_cpu] Currently only supports float32.");
}
if (out.size() == 0) {
out.set_data(allocator::malloc(out.nbytes()));
return;
}
// Fill output with C
auto& c = inputs[2];
@@ -139,7 +143,9 @@ void AddMM::eval_cpu(const std::vector<array>& inputs, array& out) {
? CopyType::Scalar
: (c.flags().row_contiguous ? CopyType::Vector : CopyType::General);
copy(c, out, ctype, stream());
if (inputs[0].shape(-1) == 0) {
return;
}
matmul_general(inputs[0], inputs[1], out, stream(), alpha_, beta_);
}