1*bdd1243dSDimitry Andric //===- LowerIFunc.cpp -----------------------------------------------------===// 2*bdd1243dSDimitry Andric // 3*bdd1243dSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*bdd1243dSDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*bdd1243dSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*bdd1243dSDimitry Andric // 7*bdd1243dSDimitry Andric //===----------------------------------------------------------------------===// 8*bdd1243dSDimitry Andric // 9*bdd1243dSDimitry Andric // This file implements replacing calls to ifuncs by introducing indirect calls. 10*bdd1243dSDimitry Andric // 11*bdd1243dSDimitry Andric //===----------------------------------------------------------------------===// 12*bdd1243dSDimitry Andric 13*bdd1243dSDimitry Andric #include "llvm/Transforms/Utils/LowerIFunc.h" 14*bdd1243dSDimitry Andric #include "llvm/IR/Module.h" 15*bdd1243dSDimitry Andric #include "llvm/Pass.h" 16*bdd1243dSDimitry Andric #include "llvm/Transforms/Utils/ModuleUtils.h" 17*bdd1243dSDimitry Andric 18*bdd1243dSDimitry Andric using namespace llvm; 19*bdd1243dSDimitry Andric 20*bdd1243dSDimitry Andric /// Replace all call users of ifuncs in the module. run(Module & M,ModuleAnalysisManager & AM)21*bdd1243dSDimitry AndricPreservedAnalyses LowerIFuncPass::run(Module &M, ModuleAnalysisManager &AM) { 22*bdd1243dSDimitry Andric if (M.ifunc_empty()) 23*bdd1243dSDimitry Andric return PreservedAnalyses::all(); 24*bdd1243dSDimitry Andric 25*bdd1243dSDimitry Andric lowerGlobalIFuncUsersAsGlobalCtor(M, {}); 26*bdd1243dSDimitry Andric return PreservedAnalyses::none(); 27*bdd1243dSDimitry Andric } 28