86 lines
3.4 KiB
C
86 lines
3.4 KiB
C
//===-- mlir-c/Dialect/SparseTensor.h - C API for SparseTensor ----*- C -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM
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// Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef MLIR_C_DIALECT_SPARSETENSOR_H
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#define MLIR_C_DIALECT_SPARSETENSOR_H
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#include "mlir-c/AffineMap.h"
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#include "mlir-c/IR.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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MLIR_DECLARE_CAPI_DIALECT_REGISTRATION(SparseTensor, sparse_tensor);
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/// Dimension level types (and properties) that define sparse tensors.
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/// See the documentation in SparseTensorAttrDefs.td for their meaning.
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///
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/// These correspond to SparseTensorEncodingAttr::DimLevelType in the C++ API.
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/// If updating, keep them in sync and update the static_assert in the impl
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/// file.
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enum MlirSparseTensorDimLevelType {
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MLIR_SPARSE_TENSOR_DIM_LEVEL_DENSE = 4, // 0b001_00
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MLIR_SPARSE_TENSOR_DIM_LEVEL_COMPRESSED = 8, // 0b010_00
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MLIR_SPARSE_TENSOR_DIM_LEVEL_COMPRESSED_NU = 9, // 0b010_01
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MLIR_SPARSE_TENSOR_DIM_LEVEL_COMPRESSED_NO = 10, // 0b010_10
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MLIR_SPARSE_TENSOR_DIM_LEVEL_COMPRESSED_NU_NO = 11, // 0b010_11
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MLIR_SPARSE_TENSOR_DIM_LEVEL_SINGLETON = 16, // 0b100_00
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MLIR_SPARSE_TENSOR_DIM_LEVEL_SINGLETON_NU = 17, // 0b100_01
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MLIR_SPARSE_TENSOR_DIM_LEVEL_SINGLETON_NO = 18, // 0b100_10
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MLIR_SPARSE_TENSOR_DIM_LEVEL_SINGLETON_NU_NO = 19, // 0b100_11
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};
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//===----------------------------------------------------------------------===//
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// SparseTensorEncodingAttr
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//===----------------------------------------------------------------------===//
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/// Checks whether the given attribute is a sparse_tensor.encoding attribute.
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MLIR_CAPI_EXPORTED bool
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mlirAttributeIsASparseTensorEncodingAttr(MlirAttribute attr);
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/// Creates a sparse_tensor.encoding attribute with the given parameters.
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MLIR_CAPI_EXPORTED MlirAttribute mlirSparseTensorEncodingAttrGet(
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MlirContext ctx, intptr_t numDimLevelTypes,
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enum MlirSparseTensorDimLevelType const *dimLevelTypes,
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MlirAffineMap dimOrdering, MlirAffineMap higherOrdering,
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int pointerBitWidth, int indexBitWidth);
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/// Returns the number of dim level types in a sparse_tensor.encoding attribute.
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MLIR_CAPI_EXPORTED intptr_t
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mlirSparseTensorEncodingGetNumDimLevelTypes(MlirAttribute attr);
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/// Returns a specified dim level type in a sparse_tensor.encoding attribute.
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MLIR_CAPI_EXPORTED enum MlirSparseTensorDimLevelType
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mlirSparseTensorEncodingAttrGetDimLevelType(MlirAttribute attr, intptr_t pos);
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/// Returns the dimension ordering in a sparse_tensor.encoding attribute.
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MLIR_CAPI_EXPORTED MlirAffineMap
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mlirSparseTensorEncodingAttrGetDimOrdering(MlirAttribute attr);
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/// Returns the higher ordering in a sparse_tensor.encoding attribute.
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MLIR_CAPI_EXPORTED MlirAffineMap
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mlirSparseTensorEncodingAttrGetHigherOrdering(MlirAttribute attr);
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/// Returns the pointer bit width in a sparse_tensor.encoding attribute.
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MLIR_CAPI_EXPORTED int
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mlirSparseTensorEncodingAttrGetPointerBitWidth(MlirAttribute attr);
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/// Returns the index bit width in a sparse_tensor.encoding attribute.
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MLIR_CAPI_EXPORTED int
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mlirSparseTensorEncodingAttrGetIndexBitWidth(MlirAttribute attr);
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#ifdef __cplusplus
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}
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#endif
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#include "mlir/Dialect/SparseTensor/Transforms/Passes.capi.h.inc"
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#endif // MLIR_C_DIALECT_SPARSETENSOR_H
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