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Implement LTOModule on top of IRObjectFile.

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IRObjectFile provides all the logic for producing mangled names and getting
symbols from inline assembly.

LTOModule then adds logic for linking specific tasks, like constructing
llvm.compiler_user or extracting linker options from the bitcode.

The rule of the thumb is that IRObjectFile has the functionality that is
needed by both LTO and llvm-ar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212349 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2014-07-04 18:40:36 +00:00
parent 2291f8cf89
commit 1c9687eed2
5 changed files with 119 additions and 170 deletions
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26
lib/Object/IRObjectFile.cpp
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@@ -33,14 +33,8 @@ using namespace llvm;
using namespace object;
IRObjectFile::IRObjectFile(std::unique_ptr<MemoryBuffer> Object,
std::error_code &EC, LLVMContext &Context)
: SymbolicFile(Binary::ID_IR, std::move(Object)) {
ErrorOr<Module *> MOrErr = getLazyBitcodeModule(Data.get(), Context);
if ((EC = MOrErr.getError()))
return;
M.reset(MOrErr.get());
std::unique_ptr<Module> Mod)
: SymbolicFile(Binary::ID_IR, std::move(Object)), M(std::move(Mod)) {
// If we have a DataLayout, setup a mangler.
const DataLayout *DL = M->getDataLayout();
if (!DL)
@@ -119,7 +113,11 @@ IRObjectFile::IRObjectFile(std::unique_ptr<MemoryBuffer> Object,
}
}
IRObjectFile::~IRObjectFile() { M->getMaterializer()->releaseBuffer(); }
IRObjectFile::~IRObjectFile() {
GVMaterializer *GVM = M->getMaterializer();
if (GVM)
GVM->releaseBuffer();
}
static const GlobalValue *getGV(DataRefImpl &Symb) {
if ((Symb.p & 3) == 3)
@@ -275,10 +273,10 @@ basic_symbol_iterator IRObjectFile::symbol_end_impl() const {
ErrorOr<IRObjectFile *> llvm::object::IRObjectFile::createIRObjectFile(
std::unique_ptr<MemoryBuffer> Object, LLVMContext &Context) {
std::error_code EC;
std::unique_ptr<IRObjectFile> Ret(
new IRObjectFile(std::move(Object), EC, Context));
if (EC)
ErrorOr<Module *> MOrErr = getLazyBitcodeModule(Object.get(), Context);
if (std::error_code EC = MOrErr.getError())
return EC;
return Ret.release();
std::unique_ptr<Module> M(MOrErr.get());
return new IRObjectFile(std::move(Object), std::move(M));
}