forked from OSchip/llvm-project
98 lines
2.9 KiB
C++
98 lines
2.9 KiB
C++
#include "llvm/ADT/OwningPtr.h"
|
|
#include "llvm/Bitcode/ReaderWriter.h"
|
|
#include "llvm/IR/Function.h"
|
|
#include "llvm/IR/GlobalVariable.h"
|
|
#include "llvm/IR/LLVMContext.h"
|
|
#include "llvm/IR/Module.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
#include "llvm/Support/ManagedStatic.h"
|
|
#include "llvm/Support/MemoryBuffer.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include "llvm/Support/system_error.h"
|
|
#include "llvm/Support/ErrorOr.h"
|
|
#include "llvm/Support/ToolOutputFile.h"
|
|
#include "llvm/Config/config.h"
|
|
|
|
using namespace llvm;
|
|
|
|
static cl::opt<std::string>
|
|
InputFilename(cl::Positional, cl::desc("<input bitcode>"), cl::init("-"));
|
|
|
|
static cl::opt<std::string>
|
|
OutputFilename("o", cl::desc("Output filename"),
|
|
cl::value_desc("filename"));
|
|
|
|
int main(int argc, char **argv) {
|
|
LLVMContext &Context = getGlobalContext();
|
|
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
|
|
|
|
cl::ParseCommandLineOptions(argc, argv, "libclc builtin preparation tool\n");
|
|
|
|
std::string ErrorMessage;
|
|
std::auto_ptr<Module> M;
|
|
|
|
{
|
|
OwningPtr<MemoryBuffer> BufferPtr;
|
|
if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename, BufferPtr))
|
|
ErrorMessage = ec.message();
|
|
else {
|
|
#if LLVM_VERSION_MAJOR > 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR > 4)
|
|
ErrorOr<Module *> ModuleOrErr = parseBitcodeFile(BufferPtr.get(), Context);
|
|
if (error_code ec = ModuleOrErr.getError())
|
|
ErrorMessage = ec.message();
|
|
M.reset(ModuleOrErr.get());
|
|
#else
|
|
M.reset(ParseBitcodeFile(BufferPtr.get(), Context, &ErrorMessage));
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if (M.get() == 0) {
|
|
errs() << argv[0] << ": ";
|
|
if (ErrorMessage.size())
|
|
errs() << ErrorMessage << "\n";
|
|
else
|
|
errs() << "bitcode didn't read correctly.\n";
|
|
return 1;
|
|
}
|
|
|
|
// Set linkage of every external definition to linkonce_odr.
|
|
for (Module::iterator i = M->begin(), e = M->end(); i != e; ++i) {
|
|
if (!i->isDeclaration() && i->getLinkage() == GlobalValue::ExternalLinkage)
|
|
i->setLinkage(GlobalValue::LinkOnceODRLinkage);
|
|
}
|
|
|
|
for (Module::global_iterator i = M->global_begin(), e = M->global_end();
|
|
i != e; ++i) {
|
|
if (!i->isDeclaration() && i->getLinkage() == GlobalValue::ExternalLinkage)
|
|
i->setLinkage(GlobalValue::LinkOnceODRLinkage);
|
|
}
|
|
|
|
if (OutputFilename.empty()) {
|
|
errs() << "no output file\n";
|
|
return 1;
|
|
}
|
|
|
|
std::string ErrorInfo;
|
|
OwningPtr<tool_output_file> Out
|
|
(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
|
|
#if (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR == 4)
|
|
sys::fs::F_Binary));
|
|
#elif LLVM_VERSION_MAJOR > 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR >= 5)
|
|
sys::fs::F_None));
|
|
#else
|
|
raw_fd_ostream::F_Binary));
|
|
#endif
|
|
if (!ErrorInfo.empty()) {
|
|
errs() << ErrorInfo << '\n';
|
|
exit(1);
|
|
}
|
|
|
|
WriteBitcodeToFile(M.get(), Out->os());
|
|
|
|
// Declare success.
|
|
Out->keep();
|
|
return 0;
|
|
}
|
|
|