llvm/mlir/lib/Dialect/Transform/IR/Utils.cpp

//===- Utils.cpp - Utils related to the transform dialect -------*- 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
//
//===----------------------------------------------------------------------===//

#include "mlir/Dialect/Transform/IR/Utils.h"
#include "mlir/Dialect/Transform/IR/TransformDialect.h"
#include "mlir/IR/Verifier.h"
#include "mlir/Interfaces/FunctionInterfaces.h"
#include "llvm/Support/Debug.h"

usingnamespacemlir;

#define DEBUG_TYPE …
#define DBGS() …

/// Return whether `func1` can be merged into `func2`. For that to work
/// `func1` has to be a declaration (aka has to be external) and `func2`
/// either has to be a declaration as well, or it has to be public (otherwise,
/// it wouldn't be visible by `func1`).
static bool canMergeInto(FunctionOpInterface func1, FunctionOpInterface func2) { … }

/// Merge `func1` into `func2`. The two ops must be inside the same parent op
/// and mergable according to `canMergeInto`. The function erases `func1` such
/// that only `func2` exists when the function returns.
static InFlightDiagnostic mergeInto(FunctionOpInterface func1,
                                    FunctionOpInterface func2) { … }

InFlightDiagnostic
transform::detail::mergeSymbolsInto(Operation *target,
                                    OwningOpRef<Operation *> other) { … }