Subversion Repositories QNX 8.QNX8 LLVM/Clang compiler suite

//===- IPO/OpenMPOpt.h - Collection of OpenMP optimizations -----*- 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

//

//===----------------------------------------------------------------------===//

#ifndef LLVM_TRANSFORMS_IPO_OPENMPOPT_H

#define LLVM_TRANSFORMS_IPO_OPENMPOPT_H

#include "llvm/Analysis/CGSCCPassManager.h"

#include "llvm/Analysis/LazyCallGraph.h"

#include "llvm/IR/PassManager.h"

namespace llvm {

namespace omp {

/// Summary of a kernel (=entry point for target offloading).

using Kernel = Function *;

/// Set of kernels in the module

using KernelSet = SetVector<Kernel>;

/// Helper to determine if \p M contains OpenMP.

bool containsOpenMP(Module &M);

/// Helper to determine if \p M is a OpenMP target offloading device module.

bool isOpenMPDevice(Module &M);

/// Get OpenMP device kernels in \p M.

KernelSet getDeviceKernels(Module &M);

} // namespace omp

/// OpenMP optimizations pass.

class OpenMPOptPass : public PassInfoMixin<OpenMPOptPass> {

public:

  OpenMPOptPass() : LTOPhase(ThinOrFullLTOPhase::None) {}

  OpenMPOptPass(ThinOrFullLTOPhase LTOPhase) : LTOPhase(LTOPhase) {}

  PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);

private:

  const ThinOrFullLTOPhase LTOPhase = ThinOrFullLTOPhase::None;

};

class OpenMPOptCGSCCPass : public PassInfoMixin<OpenMPOptCGSCCPass> {

public:

  OpenMPOptCGSCCPass() : LTOPhase(ThinOrFullLTOPhase::None) {}

  OpenMPOptCGSCCPass(ThinOrFullLTOPhase LTOPhase) : LTOPhase(LTOPhase) {}

  PreservedAnalyses run(LazyCallGraph::SCC &C, CGSCCAnalysisManager &AM,

                        LazyCallGraph &CG, CGSCCUpdateResult &UR);

private:

  const ThinOrFullLTOPhase LTOPhase = ThinOrFullLTOPhase::None;

};

} // end namespace llvm

#endif // LLVM_TRANSFORMS_IPO_OPENMPOPT_H