llvm/tools/llc/llc.cpp

//===-- llc.cpp - Implement the LLVM Compiler -----------------------------===//
//
// This is the llc compiler driver.
//
//===----------------------------------------------------------------------===//

#include "llvm/Bytecode/Reader.h"
#include "llvm/Optimizations/Normalize.h"
#include "llvm/Target/Sparc.h"
#include "llvm/Target/Machine.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Module.h"
#include "llvm/Method.h"

cl::String InputFilename ("", "Input filename", cl::NoFlags, "-");
cl::String OutputFilename("o", "Output filename", cl::NoFlags, "");

static void NormalizeMethod(Method* method) {
  NormalizePhiConstantArgs(method);
}

//===----------------------------------------------------------------------===//
// Function main()
//===----------------------------------------------------------------------===//
// 
// Entry point for the llc compiler.
//
int main(int argc, char** argv) {
  cl::ParseCommandLineOptions(argc, argv, " llvm system compiler\n");
  TargetMachine *Target = allocateSparcTargetMachine();
  
  Module *M = ParseBytecodeFile(InputFilename);
  if (M == 0) {
    cerr << "bytecode didn't read correctly.\n";
    delete Target;
    return 1;
  }

  bool Failed = false;
  for (Module::const_iterator MI = M->begin(), ME = M->end(); MI != ME; ++MI) {
    Method *Meth = *MI;
    
    NormalizeMethod(Meth);
    
    if (Target->compileMethod(Meth)) {
      cerr << "Error compiling " << InputFilename << "!\n";
      Failed = true;
      break;
    }
  }
  
  // Clean up and exit
  delete M;
  delete Target;
  return Failed;
}