#pragma once
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#include <c10/core/Backend.h>
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#include <c10/util/Exception.h>
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#include <iostream>
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namespace c10 {
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enum class Layout : int8_t { Strided, Sparse, Mkldnn };
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constexpr auto kStrided = Layout::Strided;
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constexpr auto kSparse = Layout::Sparse;
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constexpr auto kMkldnn = Layout::Mkldnn;
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inline Layout layout_from_backend(Backend backend) {
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switch (backend) {
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case Backend::SparseCPU:
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case Backend::SparseCUDA:
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case Backend::SparseHIP:
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return Layout::Sparse;
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case Backend::MkldnnCPU:
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return Layout::Mkldnn;
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default:
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return Layout::Strided;
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}
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}
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inline std::ostream& operator<<(std::ostream& stream, at::Layout layout) {
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switch (layout) {
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case at::kStrided:
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return stream << "Strided";
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case at::kSparse:
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return stream << "Sparse";
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case at::kMkldnn:
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return stream << "Mkldnn";
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default:
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AT_ERROR("Unknown layout");
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}
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}
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} // namespace c10
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