clang/lib/CodeGen/LinkInModulesPass.cpp

   1 //===-- LinkInModulesPass.cpp - Module Linking pass --------------- C++ -*-===//
   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 /// \file
   9 ///
  10 /// LinkInModulesPass implementation.
  11 ///
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "LinkInModulesPass.h"
  15 #include "BackendConsumer.h"
  16
  17 #include "clang/Basic/CodeGenOptions.h"
  18 #include "clang/Basic/FileManager.h"
  19 #include "clang/Basic/SourceManager.h"
  20
  21 using namespace llvm;
  22
  23 LinkInModulesPass::LinkInModulesPass(clang::BackendConsumer *BC) : BC(BC) {}
  24
  25 PreservedAnalyses LinkInModulesPass::run(Module &M, ModuleAnalysisManager &AM) {
  26   if (!BC)
  27     return PreservedAnalyses::all();
  28
  29   if (BC->LinkInModules(&M))
  30     report_fatal_error("Bitcode module postopt linking failed, aborted!");
  31
  32   return PreservedAnalyses::none();
  33 }