1 //===- llvm/CodeGen/MachineModuleInfoImpls.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 object-file format specific implementations of 10 // MachineModuleInfoImpl. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/CodeGen/MachineModuleInfoImpls.h" 15 #include "llvm/ADT/DenseMap.h" 16 #include "llvm/ADT/STLExtras.h" 17 #include "llvm/MC/MCSymbol.h" 18 19 using namespace llvm; 20 21 //===----------------------------------------------------------------------===// 22 // MachineModuleInfoMachO 23 //===----------------------------------------------------------------------===// 24 25 // Out of line virtual method. 26 void MachineModuleInfoMachO::anchor() {} 27 void MachineModuleInfoELF::anchor() {} 28 void MachineModuleInfoCOFF::anchor() {} 29 void MachineModuleInfoWasm::anchor() {} 30 31 using PairTy = std::pair<MCSymbol *, MachineModuleInfoImpl::StubValueTy>; 32 static int SortSymbolPair(const PairTy *LHS, const PairTy *RHS) { 33 return LHS->first->getName().compare(RHS->first->getName()); 34 } 35 36 MachineModuleInfoImpl::SymbolListTy MachineModuleInfoImpl::getSortedStubs( 37 DenseMap<MCSymbol *, MachineModuleInfoImpl::StubValueTy> &Map) { 38 MachineModuleInfoImpl::SymbolListTy List(Map.begin(), Map.end()); 39 40 array_pod_sort(List.begin(), List.end(), SortSymbolPair); 41 42 Map.clear(); 43 return List; 44 } 45 46 template <typename MachineModuleInfoTarget> 47 static typename MachineModuleInfoTarget::AuthStubListTy getAuthGVStubListHelper( 48 DenseMap<MCSymbol *, typename MachineModuleInfoTarget::AuthStubInfo> 49 &AuthPtrStubs) { 50 typename MachineModuleInfoTarget::AuthStubListTy List(AuthPtrStubs.begin(), 51 AuthPtrStubs.end()); 52 53 if (!List.empty()) 54 llvm::sort(List.begin(), List.end(), 55 [](const typename MachineModuleInfoTarget::AuthStubPairTy &LHS, 56 const typename MachineModuleInfoTarget::AuthStubPairTy &RHS) { 57 return LHS.first->getName() < RHS.first->getName(); 58 }); 59 60 AuthPtrStubs.clear(); 61 return List; 62 } 63 64 MachineModuleInfoELF::AuthStubListTy MachineModuleInfoELF::getAuthGVStubList() { 65 return getAuthGVStubListHelper<MachineModuleInfoELF>(AuthPtrStubs); 66 } 67