| //===- AffineMapDetail.h - MLIR Affine Map details Class --------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This holds implementation details of AffineMap. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef AFFINEMAPDETAIL_H_ |
| #define AFFINEMAPDETAIL_H_ |
| |
| #include "mlir/IR/AffineExpr.h" |
| #include "mlir/IR/AffineMap.h" |
| #include "mlir/Support/StorageUniquer.h" |
| #include "llvm/ADT/ArrayRef.h" |
| |
| namespace mlir { |
| namespace detail { |
| |
| struct AffineMapStorage : public StorageUniquer::BaseStorage { |
| /// The hash key used for uniquing. |
| using KeyTy = std::tuple<unsigned, unsigned, ArrayRef<AffineExpr>>; |
| |
| unsigned numDims; |
| unsigned numSymbols; |
| |
| /// The affine expressions for this (multi-dimensional) map. |
| /// TODO: use trailing objects for this. |
| ArrayRef<AffineExpr> results; |
| |
| MLIRContext *context; |
| |
| bool operator==(const KeyTy &key) const { |
| return std::get<0>(key) == numDims && std::get<1>(key) == numSymbols && |
| std::get<2>(key) == results; |
| } |
| |
| // Constructs an AffineMapStorage from a key. The context must be set by the |
| // caller. |
| static AffineMapStorage * |
| construct(StorageUniquer::StorageAllocator &allocator, const KeyTy &key) { |
| auto *res = new (allocator.allocate<AffineMapStorage>()) AffineMapStorage(); |
| res->numDims = std::get<0>(key); |
| res->numSymbols = std::get<1>(key); |
| res->results = allocator.copyInto(std::get<2>(key)); |
| return res; |
| } |
| }; |
| |
| } // end namespace detail |
| } // end namespace mlir |
| |
| #endif // AFFINEMAPDETAIL_H_ |