df6edc5277
Moved the ModuleLoader and supporting helper loadModuleFromBuffer out of ThinLTOCodeGenerator and into new LTO.h/LTO.cpp files. This is in preparation for a patch that will utilize these in the gold-plugin. Note that there are some other pending patches (D20268 and D20290) that also plan to refactor common interfaces and functionality into this same pair of new files. llvm-svn: 270509
43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
//===-LTO.cpp - LLVM Link Time Optimizer ----------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements functions and classes used to support LTO.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/LTO/LTO.h"
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#include "llvm/Bitcode/ReaderWriter.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Support/raw_ostream.h"
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namespace llvm {
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// Simple helper to load a module from bitcode
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std::unique_ptr<Module> loadModuleFromBuffer(const MemoryBufferRef &Buffer,
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LLVMContext &Context, bool Lazy) {
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SMDiagnostic Err;
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ErrorOr<std::unique_ptr<Module>> ModuleOrErr(nullptr);
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if (Lazy) {
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ModuleOrErr =
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getLazyBitcodeModule(MemoryBuffer::getMemBuffer(Buffer, false), Context,
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/* ShouldLazyLoadMetadata */ Lazy);
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} else {
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ModuleOrErr = parseBitcodeFile(Buffer, Context);
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}
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if (std::error_code EC = ModuleOrErr.getError()) {
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Err = SMDiagnostic(Buffer.getBufferIdentifier(), SourceMgr::DK_Error,
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EC.message());
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Err.print("ThinLTO", errs());
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report_fatal_error("Can't load module, abort.");
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}
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return std::move(ModuleOrErr.get());
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}
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}
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