llvm/mlir/include/mlir/Dialect/Tosa/Utils/ShapeUtils.h

//===-- ShapeUtils.h - TOSA shape support declarations ----------*- 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
//
//===----------------------------------------------------------------------===//
//
// Class declarations for shape utilities meant to assist shape propagation.
//
//===----------------------------------------------------------------------===//

#ifndef MLIR_DIALECT_TOSA_UTILS_SHAPEUTILS_H
#define MLIR_DIALECT_TOSA_UTILS_SHAPEUTILS_H

#include "mlir/IR/BuiltinTypes.h"
#include "mlir/IR/Types.h"
#include "mlir/Interfaces/InferTypeOpInterface.h"
#include "llvm/ADT/Sequence.h"
#include "llvm/ADT/SmallVector.h"

namespace mlir {
namespace tosa {
/// Statically known information for a particular Value.
///
/// This struct currently tracks only information relevant for tensor/array-like
/// shaped types. It is fine to associate a `ValueKnowledge` with a non-shaped
/// type as long as it is in the default "no knowledge" state returned by
/// `getPessimisticValueState`. The important invariant is that we cannot
/// claim to know something about a value which is false.
///
/// This class could also be called "dataflow facts", "lattice value", etc.
struct ValueKnowledge { … };
} // namespace tosa
} // namespace mlir

#endif // MLIR_DIALECT_TOSA_UTILS_SHAPEUTILS_H