ErrorOr<std::unique_ptr<LTOModule>>
LTOModule::createFromFile(LLVMContext &Context, StringRef path,
const TargetOptions &options) {
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getFile(path);
if (std::error_code EC = BufferOrErr.getError()) {
Context.emitError(EC.message());
return EC;
}
std::unique_ptr<MemoryBuffer> Buffer = std::move(BufferOrErr.get());
return makeLTOModule(Buffer->getMemBufferRef(), options, Context,
/* ShouldBeLazy*/ false);
}
static ErrorOr<std::unique_ptr<Module>>
parseBitcodeFileImpl(MemoryBufferRef Buffer, LLVMContext &Context,
bool ShouldBeLazy) {
// Find the buffer.
ErrorOr<MemoryBufferRef> MBOrErr =
IRObjectFile::findBitcodeInMemBuffer(Buffer);
if (std::error_code EC = MBOrErr.getError()) {
Context.emitError(EC.message());
return EC;
}
if (!ShouldBeLazy) {
// Parse the full file.
return expectedToErrorOrAndEmitErrors(Context,
parseBitcodeFile(*MBOrErr, Context));
}
// Parse lazily.
return expectedToErrorOrAndEmitErrors(
Context,
getLazyBitcodeModule(*MBOrErr, Context, true /*ShouldLazyLoadMetadata*/));
}