nicolas/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Implement LTOModule on top of IRObjectFile.

Browse Source 
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.

llvm-svn: 212349
This commit is contained in:
Rafael Espindola
2014-07-04 18:40:36 +00:00
parent 0972d41c73
commit dddd1fd9f4
5 changed files with 119 additions and 170 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
llvm/lib/Object/IRObjectFile.cpp
View File

@@ -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));
}