LowerIFunc.cpp

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//===- LowerIFunc.cpp -----------------------------------------------------===//
//
// 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 file implements replacing calls to ifuncs by introducing indirect calls.
//
//===----------------------------------------------------------------------===//
 
#include "llvm/Transforms/Utils/LowerIFunc.h"
#include "llvm/IR/Module.h"
#include "llvm/Pass.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"
 
using namespace llvm;
 
/// Replace all call users of ifuncs in the module.
PreservedAnalyses LowerIFuncPass::run(Module &M, ModuleAnalysisManager &AM) {
  if (M.ifunc_empty())
    return PreservedAnalyses::all();
 
  lowerGlobalIFuncUsersAsGlobalCtor(M, {});
  return PreservedAnalyses::none();
}