mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
d4c7f2766b
tool of a pipeline is having issues. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3168 91177308-0d34-0410-b5e6-96231b3b80d8
103 lines
3.2 KiB
C++
103 lines
3.2 KiB
C++
//===------------------------------------------------------------------------===
|
|
// 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 "llvm/Module.h"
|
|
#include "llvm/Assembly/Parser.h"
|
|
#include "llvm/Bytecode/Writer.h"
|
|
#include "Support/CommandLine.h"
|
|
#include "Support/Signals.h"
|
|
#include <fstream>
|
|
#include <memory>
|
|
using std::cerr;
|
|
using std::string;
|
|
|
|
static cl::opt<string>
|
|
InputFilename(cl::Positional, cl::desc("<input .llvm file>"), cl::init("-"));
|
|
|
|
static cl::opt<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>
|
|
DumpAsm("d", cl::desc("Print assembly as parsed"), cl::Hidden);
|
|
|
|
int main(int argc, char **argv) {
|
|
cl::ParseCommandLineOptions(argc, argv, " llvm .ll -> .bc assembler\n");
|
|
|
|
std::ostream *Out = 0;
|
|
try {
|
|
// Parse the file now...
|
|
std::auto_ptr<Module> M(ParseAssemblyFile(InputFilename));
|
|
if (M.get() == 0) {
|
|
cerr << argv[0] << ": assembly didn't read correctly.\n";
|
|
return 1;
|
|
}
|
|
|
|
if (DumpAsm) cerr << "Here's the assembly:\n" << M.get();
|
|
|
|
if (OutputFilename != "") { // Specified an output filename?
|
|
if (!Force && std::ifstream(OutputFilename.c_str())) {
|
|
// If force is not specified, make sure not to overwrite a file!
|
|
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());
|
|
} 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') {
|
|
// Source ends in .ll
|
|
OutputFilename = std::string(IFN.begin(), IFN.end()-3);
|
|
} else {
|
|
OutputFilename = IFN; // Append a .bc to it
|
|
}
|
|
OutputFilename += ".bc";
|
|
|
|
if (!Force && std::ifstream(OutputFilename.c_str())) {
|
|
// If force is not specified, make sure not to overwrite a file!
|
|
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());
|
|
// Make sure that the Out file gets unlink'd from the disk if we get a
|
|
// SIGINT
|
|
RemoveFileOnSignal(OutputFilename);
|
|
}
|
|
}
|
|
|
|
if (!Out->good()) {
|
|
cerr << argv[0] << ": error opening " << OutputFilename << "!\n";
|
|
return 1;
|
|
}
|
|
|
|
WriteBytecodeToFile(M.get(), *Out);
|
|
} catch (const ParseException &E) {
|
|
cerr << argv[0] << ": " << E.getMessage() << "\n";
|
|
return 1;
|
|
}
|
|
|
|
if (Out != &std::cout) delete Out;
|
|
return 0;
|
|
}
|
|
|