llvm/llvm/lib/CodeGen/EHContGuardCatchret.cpp

//===-- EHContGuardCatchret.cpp - Catchret target symbols -------*- 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
//
//===----------------------------------------------------------------------===//
///
/// \file
/// This file contains a machine function pass to insert a symbol before each
/// valid catchret target and store this in the MachineFunction's
/// CatchRetTargets vector. This will be used to emit the table of valid targets
/// used by EHCont Guard.
///
//===----------------------------------------------------------------------===//

#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/IR/Module.h"
#include "llvm/InitializePasses.h"

usingnamespacellvm;

#define DEBUG_TYPE …

STATISTIC(EHContGuardCatchretTargets,
          "Number of EHCont Guard catchret targets");

namespace {

/// MachineFunction pass to insert a symbol before each valid catchret target
/// and store these in the MachineFunction's CatchRetTargets vector.
class EHContGuardCatchret : public MachineFunctionPass { … };

} // end anonymous namespace

char EHContGuardCatchret::ID = …;

INITIALIZE_PASS(…)
FunctionPass *llvm::createEHContGuardCatchretPass() { … }

bool EHContGuardCatchret::runOnMachineFunction(MachineFunction &MF) { … }