1 //===- AffineMap.cpp - C API for MLIR Affine Maps -------------------------===//
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/AffineMap.h"
10 #include "mlir-c/IR.h"
11 #include "mlir/CAPI/AffineMap.h"
12 #include "mlir/CAPI/IR.h"
13 #include "mlir/CAPI/Utils.h"
14 #include "mlir/IR/AffineMap.h"
15 
16 // TODO: expose the C API related to `AffineExpr` and mutable affine map.
17 
18 using namespace mlir;
19 
20 MlirContext mlirAffineMapGetContext(MlirAffineMap affineMap) {
21   return wrap(unwrap(affineMap).getContext());
22 }
23 
24 bool mlirAffineMapEqual(MlirAffineMap a1, MlirAffineMap a2) {
25   return unwrap(a1) == unwrap(a2);
26 }
27 
28 void mlirAffineMapPrint(MlirAffineMap affineMap, MlirStringCallback callback,
29                         void *userData) {
30   mlir::detail::CallbackOstream stream(callback, userData);
31   unwrap(affineMap).print(stream);
32 }
33 
34 void mlirAffineMapDump(MlirAffineMap affineMap) { unwrap(affineMap).dump(); }
35 
36 MlirAffineMap mlirAffineMapEmptyGet(MlirContext ctx) {
37   return wrap(AffineMap::get(unwrap(ctx)));
38 }
39 
40 MlirAffineMap mlirAffineMapGet(MlirContext ctx, intptr_t dimCount,
41                                intptr_t symbolCount) {
42   return wrap(AffineMap::get(dimCount, symbolCount, unwrap(ctx)));
43 }
44 
45 MlirAffineMap mlirAffineMapConstantGet(MlirContext ctx, int64_t val) {
46   return wrap(AffineMap::getConstantMap(val, unwrap(ctx)));
47 }
48 
49 MlirAffineMap mlirAffineMapMultiDimIdentityGet(MlirContext ctx,
50                                                intptr_t numDims) {
51   return wrap(AffineMap::getMultiDimIdentityMap(numDims, unwrap(ctx)));
52 }
53 
54 MlirAffineMap mlirAffineMapMinorIdentityGet(MlirContext ctx, intptr_t dims,
55                                             intptr_t results) {
56   return wrap(AffineMap::getMinorIdentityMap(dims, results, unwrap(ctx)));
57 }
58 
59 MlirAffineMap mlirAffineMapPermutationGet(MlirContext ctx, intptr_t size,
60                                           unsigned *permutation) {
61   return wrap(AffineMap::getPermutationMap(
62       llvm::makeArrayRef(permutation, static_cast<size_t>(size)), unwrap(ctx)));
63 }
64 
65 bool mlirAffineMapIsIdentity(MlirAffineMap affineMap) {
66   return unwrap(affineMap).isIdentity();
67 }
68 
69 bool mlirAffineMapIsMinorIdentity(MlirAffineMap affineMap) {
70   return unwrap(affineMap).isMinorIdentity();
71 }
72 
73 bool mlirAffineMapIsEmpty(MlirAffineMap affineMap) {
74   return unwrap(affineMap).isEmpty();
75 }
76 
77 bool mlirAffineMapIsSingleConstant(MlirAffineMap affineMap) {
78   return unwrap(affineMap).isSingleConstant();
79 }
80 
81 int64_t mlirAffineMapGetSingleConstantResult(MlirAffineMap affineMap) {
82   return unwrap(affineMap).getSingleConstantResult();
83 }
84 
85 intptr_t mlirAffineMapGetNumDims(MlirAffineMap affineMap) {
86   return unwrap(affineMap).getNumDims();
87 }
88 
89 intptr_t mlirAffineMapGetNumSymbols(MlirAffineMap affineMap) {
90   return unwrap(affineMap).getNumSymbols();
91 }
92 
93 intptr_t mlirAffineMapGetNumResults(MlirAffineMap affineMap) {
94   return unwrap(affineMap).getNumResults();
95 }
96 
97 intptr_t mlirAffineMapGetNumInputs(MlirAffineMap affineMap) {
98   return unwrap(affineMap).getNumInputs();
99 }
100 
101 bool mlirAffineMapIsProjectedPermutation(MlirAffineMap affineMap) {
102   return unwrap(affineMap).isProjectedPermutation();
103 }
104 
105 bool mlirAffineMapIsPermutation(MlirAffineMap affineMap) {
106   return unwrap(affineMap).isPermutation();
107 }
108 
109 MlirAffineMap mlirAffineMapGetSubMap(MlirAffineMap affineMap, intptr_t size,
110                                      intptr_t *resultPos) {
111   SmallVector<unsigned, 8> pos;
112   pos.reserve(size);
113   for (intptr_t i = 0; i < size; ++i)
114     pos.push_back(static_cast<unsigned>(resultPos[i]));
115   return wrap(unwrap(affineMap).getSubMap(pos));
116 }
117 
118 MlirAffineMap mlirAffineMapGetMajorSubMap(MlirAffineMap affineMap,
119                                           intptr_t numResults) {
120   return wrap(unwrap(affineMap).getMajorSubMap(numResults));
121 }
122 
123 MlirAffineMap mlirAffineMapGetMinorSubMap(MlirAffineMap affineMap,
124                                           intptr_t numResults) {
125   return wrap(unwrap(affineMap).getMinorSubMap(numResults));
126 }
127