llvm/llvm/lib/Transforms/Utils/LowerInvoke.cpp

//===- LowerInvoke.cpp - Eliminate Invoke instructions --------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This transformation is designed for use by code generators which do not yet
// support stack unwinding.  This pass converts 'invoke' instructions to 'call'
// instructions, so that any exception-handling 'landingpad' blocks become dead
// code (which can be removed by running the '-simplifycfg' pass afterwards).
//
//===----------------------------------------------------------------------===//

#include "llvm/Transforms/Utils/LowerInvoke.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/IR/Instructions.h"
#include "llvm/InitializePasses.h"
#include "llvm/Pass.h"
#include "llvm/Transforms/Utils.h"
usingnamespacellvm;

#define DEBUG_TYPE …

STATISTIC(NumInvokes, "Number of invokes replaced");

namespace {
  class LowerInvokeLegacyPass : public FunctionPass { … };
}

char LowerInvokeLegacyPass::ID = …;
INITIALIZE_PASS(…)

static bool runImpl(Function &F) { … }

bool LowerInvokeLegacyPass::runOnFunction(Function &F) { … }

namespace llvm {
char &LowerInvokePassID = …;

// Public Interface To the LowerInvoke pass.
FunctionPass *createLowerInvokePass() { … }

PreservedAnalyses LowerInvokePass::run(Function &F,
                                       FunctionAnalysisManager &AM) { … }
}