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//===------------------------------------------------------------------------===
// LLVM 'AS' UTILITY
//
// This utility may be invoked in the following manner:
// as --help - Output information about command line switches
// as [options] - Read LLVM assembly from stdin, write bytecode to stdout
// as [options] x.ll - Read LLVM assembly from the x.ll file, write bytecode
// to the x.bc file.
//
//===------------------------------------------------------------------------===
#include <iostream.h>
#include <fstream.h>
#include <string>
#include "llvm/Module.h"
#include "llvm/Assembly/Parser.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/Bytecode/Writer.h"
#include "llvm/Tools/CommandLine.h"
int main(int argc, char **argv) {
ToolCommandLine Opts(argc, argv);
bool DumpAsm = false;
for (int i = 1; i < argc; i++) {
if (string(argv[i]) == string("-d")) {
argv[i] = 0; DumpAsm = true;
}
}
bool PrintMessage = false;
for (int i = 1; i < argc; i++) {
if (argv[i] == 0) continue;
if (string(argv[i]) == string("--help")) {
PrintMessage = true;
} else {
cerr << argv[0] << ": argument not recognized: '" << argv[i] << "'!\n";
}
}
if (PrintMessage) {
cerr << argv[0] << " usage:\n"
<< " " << argv[0] << " --help - Print this usage information\n"
<< " " << argv[0] << " x.ll - Parse <x.ll> file and output "
<< "bytecodes to x.bc\n"
<< " " << argv[0] << " - Parse stdin and write to stdout.\n";
return 1;
}
ostream *Out = &cout; // Default to output to stdout...
try {
// Parse the file now...
Module *C = ParseAssemblyFile(Opts);
if (C == 0) {
cerr << "assembly didn't read correctly.\n";
return 1;
}
if (DumpAsm)
cerr << "Here's the assembly:\n" << C;
if (Opts.getOutputFilename() != "-") {
Out = new ofstream(Opts.getOutputFilename().c_str(),
(Opts.getForce() ? 0 : ios::noreplace)|ios::out);
if (!Out->good()) {
cerr << "Error opening " << Opts.getOutputFilename() << "!\n";
delete C;
return 1;
}
}
WriteBytecodeToFile(C, *Out);
delete C;
} catch (const ParseException &E) {
cerr << E.getMessage() << endl;
return 1;
}
if (Out != &cout) delete Out;
return 0;
}
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