#include "llvm/Module.h"
#include "llvm/Assembly/Parser.h"
#include "llvm/Analysis/Verifier.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Streams.h"
#include "llvm/Support/SystemUtils.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/System/Signals.h"
#include <fstream>
#include <iostream>
#include <memory>
using namespace llvm;
static cl::opt<std::string>
InputFilename(cl::Positional, cl::desc("<input .llvm file>"), cl::init("-"));
static cl::opt<std::string>
OutputFilename("o", cl::desc("Override output filename"),
cl::value_desc("filename"));
static cl::opt<bool>
Force("f", cl::desc("Overwrite output files"));
static cl::opt<bool>
DisableOutput("disable-output", cl::desc("Disable output"), cl::init(false));
static cl::opt<bool>
DumpAsm("d", cl::desc("Print assembly as parsed"), cl::Hidden);
static cl::opt<bool>
DisableVerify("disable-verify", cl::Hidden,
cl::desc("Do not run verifier on input LLVM (dangerous!)"));
int main(int argc, char **argv) {
sys::PrintStackTraceOnErrorSignal();
PrettyStackTraceProgram X(argc, argv);
llvm_shutdown_obj Y; cl::ParseCommandLineOptions(argc, argv, "llvm .ll -> .bc assembler\n");
int exitCode = 0;
std::ostream *Out = 0;
try {
ParseError Err;
std::auto_ptr<Module> M(ParseAssemblyFile(InputFilename, Err));
if (M.get() == 0) {
Err.PrintError(argv[0], errs());
return 1;
}
if (!DisableVerify) {
std::string Err;
if (verifyModule(*M.get(), ReturnStatusAction, &Err)) {
cerr << argv[0]
<< ": assembly parsed, but does not verify as correct!\n";
cerr << Err;
return 1;
}
}
if (DumpAsm) cerr << "Here's the assembly:\n" << *M.get();
if (OutputFilename != "") { if (OutputFilename != "-") { if (!Force && std::ifstream(OutputFilename.c_str())) {
cerr << argv[0] << ": error opening '" << OutputFilename
<< "': file exists!\n"
<< "Use -f command line argument to force output\n";
return 1;
}
Out = new std::ofstream(OutputFilename.c_str(), std::ios::out |
std::ios::trunc | std::ios::binary);
} else { Out = &std::cout;
}
} else {
if (InputFilename == "-") {
OutputFilename = "-";
Out = &std::cout;
} else {
std::string IFN = InputFilename;
int Len = IFN.length();
if (IFN[Len-3] == '.' && IFN[Len-2] == 'l' && IFN[Len-1] == 'l') {
OutputFilename = std::string(IFN.begin(), IFN.end()-3);
} else {
OutputFilename = IFN; }
OutputFilename += ".bc";
if (!Force && std::ifstream(OutputFilename.c_str())) {
cerr << argv[0] << ": error opening '" << OutputFilename
<< "': file exists!\n"
<< "Use -f command line argument to force output\n";
return 1;
}
Out = new std::ofstream(OutputFilename.c_str(), std::ios::out |
std::ios::trunc | std::ios::binary);
sys::RemoveFileOnSignal(sys::Path(OutputFilename));
}
}
if (!Out->good()) {
cerr << argv[0] << ": error opening " << OutputFilename << "!\n";
return 1;
}
if (!DisableOutput)
if (Force || !CheckBitcodeOutputToConsole(Out,true))
WriteBitcodeToFile(M.get(), *Out);
} catch (const std::string& msg) {
cerr << argv[0] << ": " << msg << "\n";
exitCode = 1;
} catch (...) {
cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
exitCode = 1;
}
if (Out != &std::cout) delete Out;
return exitCode;
}