1 //===- LowerIFunc.cpp -----------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file implements replacing calls to ifuncs by introducing indirect calls. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "llvm/Transforms/Utils/LowerIFunc.h" 14 #include "llvm/IR/Module.h" 15 #include "llvm/Pass.h" 16 #include "llvm/Transforms/Utils/ModuleUtils.h" 17 18 using namespace llvm; 19 20 /// Replace all call users of ifuncs in the module. 21 PreservedAnalyses LowerIFuncPass::run(Module &M, ModuleAnalysisManager &AM) { 22 if (M.ifunc_empty()) 23 return PreservedAnalyses::all(); 24 25 lowerGlobalIFuncUsersAsGlobalCtor(M, {}); 26 return PreservedAnalyses::none(); 27 } 28