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Fix 1D cp async test failure #1568

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Fix 1D cp async test failure #1568

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3 changes: 2 additions & 1 deletion libcudacxx/test/libcudacxx/cuda/barrier/cp_async_bulk_tensor_generic.h
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Original file line number Diff line number Diff line change
Expand Up @@ -217,7 +217,8 @@ CUtensorMap map_encode(T *tensor_ptr, const cuda::std::array<uint64_t, num_dims>
// The stride is the number of bytes to traverse from the first element of one row to the next.
// It must be a multiple of 16.
constexpr int num_strides = num_dims - 1;
cuda::std::array<uint64_t, num_strides> stride;
// Clamp the size of the array to 1, first index must be valid even if not used.
cuda::std::array<uint64_t, num_strides ? num_strides : 1> stride;
uint64_t base_stride = sizeof(T);
for (size_t i = 0; i < stride.size(); ++i) {
base_stride *= gmem_dims[i];
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