forked from OSchip/llvm-project
98 lines
3.1 KiB
C++
98 lines
3.1 KiB
C++
//===- AffineExprDetail.h - MLIR Affine Expr storage details ----*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM 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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//
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// This holds implementation details of AffineExpr. Ideally it would not be
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// exposed and would be kept local to AffineExpr.cpp however, MLIRContext.cpp
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// needs to know the sizes for placement-new style Allocation.
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//
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//===----------------------------------------------------------------------===//
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#ifndef MLIR_IR_AFFINEEXPRDETAIL_H_
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#define MLIR_IR_AFFINEEXPRDETAIL_H_
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#include "mlir/IR/AffineExpr.h"
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#include "mlir/IR/MLIRContext.h"
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#include "mlir/Support/StorageUniquer.h"
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namespace mlir {
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class MLIRContext;
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namespace detail {
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/// Base storage class appearing in an affine expression.
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struct AffineExprStorage : public StorageUniquer::BaseStorage {
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MLIRContext *context;
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AffineExprKind kind;
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};
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/// A binary operation appearing in an affine expression.
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struct AffineBinaryOpExprStorage : public AffineExprStorage {
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using KeyTy = std::tuple<unsigned, AffineExpr, AffineExpr>;
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bool operator==(const KeyTy &key) const {
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return static_cast<AffineExprKind>(std::get<0>(key)) == kind &&
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std::get<1>(key) == lhs && std::get<2>(key) == rhs;
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}
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static AffineBinaryOpExprStorage *
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construct(StorageUniquer::StorageAllocator &allocator, const KeyTy &key) {
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auto *result = allocator.allocate<AffineBinaryOpExprStorage>();
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result->kind = static_cast<AffineExprKind>(std::get<0>(key));
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result->lhs = std::get<1>(key);
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result->rhs = std::get<2>(key);
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result->context = result->lhs.getContext();
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return result;
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}
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AffineExpr lhs;
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AffineExpr rhs;
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};
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/// A dimensional or symbolic identifier appearing in an affine expression.
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struct AffineDimExprStorage : public AffineExprStorage {
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using KeyTy = std::pair<unsigned, unsigned>;
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bool operator==(const KeyTy &key) const {
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return kind == static_cast<AffineExprKind>(key.first) &&
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position == key.second;
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}
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static AffineDimExprStorage *
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construct(StorageUniquer::StorageAllocator &allocator, const KeyTy &key) {
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auto *result = allocator.allocate<AffineDimExprStorage>();
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result->kind = static_cast<AffineExprKind>(key.first);
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result->position = key.second;
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return result;
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}
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/// Position of this identifier in the argument list.
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unsigned position;
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};
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/// An integer constant appearing in affine expression.
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struct AffineConstantExprStorage : public AffineExprStorage {
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using KeyTy = int64_t;
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bool operator==(const KeyTy &key) const { return constant == key; }
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static AffineConstantExprStorage *
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construct(StorageUniquer::StorageAllocator &allocator, const KeyTy &key) {
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auto *result = allocator.allocate<AffineConstantExprStorage>();
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result->kind = AffineExprKind::Constant;
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result->constant = key;
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return result;
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}
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// The constant.
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int64_t constant;
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};
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} // end namespace detail
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} // end namespace mlir
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#endif // MLIR_IR_AFFINEEXPRDETAIL_H_
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