//===- 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