1//===- Tensor.cpp - C API for SparseTensor dialect ------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "mlir-c/Dialect/SparseTensor.h"
10#include "mlir-c/IR.h"
11#include "mlir/CAPI/AffineMap.h"
12#include "mlir/CAPI/Registration.h"
13#include "mlir/Dialect/SparseTensor/IR/SparseTensor.h"
14#include "mlir/Support/LLVM.h"
15
16using namespace llvm;
17using namespace mlir::sparse_tensor;
18
19MLIR_DEFINE_CAPI_DIALECT_REGISTRATION(SparseTensor, sparse_tensor,
20 mlir::sparse_tensor::SparseTensorDialect)
21
22// Ensure the C-API enums are int-castable to C++ equivalents.
23static_assert(
24 static_cast<int>(MLIR_SPARSE_TENSOR_LEVEL_DENSE) ==
25 static_cast<int>(LevelFormat::Dense) &&
26 static_cast<int>(MLIR_SPARSE_TENSOR_LEVEL_COMPRESSED) ==
27 static_cast<int>(LevelFormat::Compressed) &&
28 static_cast<int>(MLIR_SPARSE_TENSOR_LEVEL_SINGLETON) ==
29 static_cast<int>(LevelFormat::Singleton) &&
30 static_cast<int>(MLIR_SPARSE_TENSOR_LEVEL_LOOSE_COMPRESSED) ==
31 static_cast<int>(LevelFormat::LooseCompressed) &&
32 static_cast<int>(MLIR_SPARSE_TENSOR_LEVEL_N_OUT_OF_M) ==
33 static_cast<int>(LevelFormat::NOutOfM),
34 "MlirSparseTensorLevelFormat (C-API) and LevelFormat (C++) mismatch");
35
36static_assert(static_cast<int>(MLIR_SPARSE_PROPERTY_NON_ORDERED) ==
37 static_cast<int>(LevelPropNonDefault::Nonordered) &&
38 static_cast<int>(MLIR_SPARSE_PROPERTY_NON_UNIQUE) ==
39 static_cast<int>(LevelPropNonDefault::Nonunique),
40 "MlirSparseTensorLevelProperty (C-API) and "
41 "LevelPropertyNondefault (C++) mismatch");
42
43bool mlirAttributeIsASparseTensorEncodingAttr(MlirAttribute attr) {
44 return isa<SparseTensorEncodingAttr>(unwrap(attr));
45}
46
47MlirAttribute
48mlirSparseTensorEncodingAttrGet(MlirContext ctx, intptr_t lvlRank,
49 MlirSparseTensorLevelType const *lvlTypes,
50 MlirAffineMap dimToLvl, MlirAffineMap lvlToDim,
51 int posWidth, int crdWidth) {
52 SmallVector<LevelType> cppLvlTypes;
53 cppLvlTypes.reserve(N: lvlRank);
54 for (intptr_t l = 0; l < lvlRank; ++l)
55 cppLvlTypes.push_back(Elt: static_cast<LevelType>(lvlTypes[l]));
56 return wrap(SparseTensorEncodingAttr::get(unwrap(ctx), cppLvlTypes,
57 unwrap(dimToLvl), unwrap(lvlToDim),
58 posWidth, crdWidth));
59}
60
61MlirAffineMap mlirSparseTensorEncodingAttrGetDimToLvl(MlirAttribute attr) {
62 return wrap(cast<SparseTensorEncodingAttr>(unwrap(attr)).getDimToLvl());
63}
64
65MlirAffineMap mlirSparseTensorEncodingAttrGetLvlToDim(MlirAttribute attr) {
66 return wrap(cast<SparseTensorEncodingAttr>(unwrap(attr)).getLvlToDim());
67}
68
69intptr_t mlirSparseTensorEncodingGetLvlRank(MlirAttribute attr) {
70 return cast<SparseTensorEncodingAttr>(unwrap(attr)).getLvlRank();
71}
72
73MlirSparseTensorLevelType
74mlirSparseTensorEncodingAttrGetLvlType(MlirAttribute attr, intptr_t lvl) {
75 return static_cast<MlirSparseTensorLevelType>(
76 cast<SparseTensorEncodingAttr>(unwrap(attr)).getLvlType(lvl));
77}
78
79enum MlirSparseTensorLevelFormat
80mlirSparseTensorEncodingAttrGetLvlFmt(MlirAttribute attr, intptr_t lvl) {
81 LevelType lt =
82 static_cast<LevelType>(mlirSparseTensorEncodingAttrGetLvlType(attr, lvl));
83 return static_cast<MlirSparseTensorLevelFormat>(lt.getLvlFmt());
84}
85
86int mlirSparseTensorEncodingAttrGetPosWidth(MlirAttribute attr) {
87 return cast<SparseTensorEncodingAttr>(unwrap(attr)).getPosWidth();
88}
89
90int mlirSparseTensorEncodingAttrGetCrdWidth(MlirAttribute attr) {
91 return cast<SparseTensorEncodingAttr>(unwrap(attr)).getCrdWidth();
92}
93
94MlirSparseTensorLevelType mlirSparseTensorEncodingAttrBuildLvlType(
95 enum MlirSparseTensorLevelFormat lvlFmt,
96 const enum MlirSparseTensorLevelPropertyNondefault *properties,
97 unsigned size, unsigned n, unsigned m) {
98
99 std::vector<LevelPropNonDefault> props;
100 for (unsigned i = 0; i < size; i++)
101 props.push_back(x: static_cast<LevelPropNonDefault>(properties[i]));
102
103 return static_cast<MlirSparseTensorLevelType>(
104 *buildLevelType(lf: static_cast<LevelFormat>(lvlFmt), properties: props, n, m));
105}
106
107unsigned
108mlirSparseTensorEncodingAttrGetStructuredN(MlirSparseTensorLevelType lvlType) {
109 return getN(lt: static_cast<LevelType>(lvlType));
110}
111
112unsigned
113mlirSparseTensorEncodingAttrGetStructuredM(MlirSparseTensorLevelType lvlType) {
114 return getM(lt: static_cast<LevelType>(lvlType));
115}
116

source code of mlir/lib/CAPI/Dialect/SparseTensor.cpp