1//===- BPSectionOrderer.h -------------------------------------------------===//
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/// This file uses Balanced Partitioning to order sections to improve startup
10/// time and compressed size.
11///
12//===----------------------------------------------------------------------===//
13
14#ifndef LLD_MACHO_BPSECTION_ORDERER_H
15#define LLD_MACHO_BPSECTION_ORDERER_H
16
17#include "llvm/ADT/DenseMap.h"
18#include "llvm/ADT/StringRef.h"
19
20namespace lld::macho {
21class InputSection;
22
23/// Run Balanced Partitioning to find the optimal function and data order to
24/// improve startup time and compressed size.
25///
26/// It is important that .subsections_via_symbols is used to ensure functions
27/// and data are in their own sections and thus can be reordered.
28llvm::DenseMap<const InputSection *, int>
29runBalancedPartitioning(llvm::StringRef profilePath,
30 bool forFunctionCompression, bool forDataCompression,
31 bool compressionSortStartupFunctions, bool verbose);
32
33} // namespace lld::macho
34
35#endif
36