50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
//===--- ModuleLinker.cpp - Shared bitcode link helpers -------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "clang/CodeGen/ModuleLinker.h"
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#include "clang/Basic/CodeGenOptions.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "llvm/Bitcode/BitcodeReader.h"
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#include "llvm/IR/Module.h"
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using namespace clang;
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bool clang::loadLinkModules(CompilerInstance &CI, llvm::LLVMContext &Ctx,
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llvm::SmallVectorImpl<LinkModule> &LinkModules) {
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if (!LinkModules.empty())
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return false;
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for (const CodeGenOptions::BitcodeFileToLink &F :
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CI.getCodeGenOpts().LinkBitcodeFiles) {
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auto BCBuf = CI.getFileManager().getBufferForFile(F.Filename);
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if (!BCBuf) {
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CI.getDiagnostics().Report(diag::err_cannot_open_file)
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<< F.Filename << BCBuf.getError().message();
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LinkModules.clear();
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return true;
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}
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llvm::Expected<std::unique_ptr<llvm::Module>> ModuleOrErr =
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llvm::getOwningLazyBitcodeModule(std::move(*BCBuf), Ctx);
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if (!ModuleOrErr) {
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llvm::handleAllErrors(
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ModuleOrErr.takeError(), [&](llvm::ErrorInfoBase &EIB) {
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CI.getDiagnostics().Report(diag::err_cannot_open_file)
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<< F.Filename << EIB.message();
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});
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LinkModules.clear();
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return true;
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}
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LinkModules.push_back({std::move(ModuleOrErr.get()), F.PropagateAttrs,
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F.Internalize, F.LinkFlags});
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}
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return false;
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}
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