llvm/CodeGen/TailDuplication.h

0001 //===- llvm/CodeGen/TailDuplication.h ---------------------------*- C++ -*-===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef LLVM_CODEGEN_TAILDUPLICATIONPASS_H
0010 #define LLVM_CODEGEN_TAILDUPLICATIONPASS_H
0011
0012 #include "llvm/CodeGen/MBFIWrapper.h"
0013 #include "llvm/CodeGen/MachineFunction.h"
0014 #include "llvm/CodeGen/MachinePassManager.h"
0015
0016 namespace llvm {
0017
0018 template <typename DerivedT, bool PreRegAlloc>
0019 class TailDuplicatePassBase : public PassInfoMixin<DerivedT> {
0020 private:
0021   std::unique_ptr<MBFIWrapper> MBFIW;
0022
0023 public:
0024   PreservedAnalyses run(MachineFunction &MF,
0025                         MachineFunctionAnalysisManager &MFAM);
0026 };
0027
0028 class EarlyTailDuplicatePass
0029     : public TailDuplicatePassBase<EarlyTailDuplicatePass, true> {
0030 public:
0031   MachineFunctionProperties getClearedProperties() const {
0032     return MachineFunctionProperties().set(
0033         MachineFunctionProperties::Property::NoPHIs);
0034   }
0035 };
0036
0037 class TailDuplicatePass
0038     : public TailDuplicatePassBase<TailDuplicatePass, false> {};
0039
0040 } // namespace llvm
0041
0042 extern template class llvm::TailDuplicatePassBase<llvm::EarlyTailDuplicatePass,
0043                                                   true>;
0044 extern template class llvm::TailDuplicatePassBase<llvm::TailDuplicatePass,
0045                                                   false>;
0046
0047 #endif // LLVM_CODEGEN_TAILDUPLICATIONPASS_H