llc.cpp revision 46ac43c1bbdf010507f61750368297889ac1b6c6 
1// $Id$
2//***************************************************************************
3// File:
4//	llc.cpp
5//
6// Purpose:
7//	Driver for llc compiler.
8//
9// History:
10//	7/15/01	 -  Vikram Adve  -  Created
11//
12//**************************************************************************/
13
14#include "llvm/Bytecode/Reader.h"
15#include "llvm/Optimizations/Normalize.h"
16#include "llvm/CodeGen/InstrSelection.h"
17#include "llvm/CodeGen/InstrScheduling.h"
18#include "llvm/CodeGen/Sparc.h"
19#include "llvm/Support/CommandLine.h"
20#include "llvm/Module.h"
21#include "llvm/Method.h"
22
23cl::String InputFilename ("", "Input filename", cl::NoFlags, "-");
24cl::String OutputFilename("o", "Output filename", cl::NoFlags, "");
25
26
27static void NormalizeMethod(Method* method) {
28  NormalizePhiConstantArgs(method);
29}
30
31
32static bool CompileModule(Module *M, TargetMachine &Target) {
33  for (Module::const_iterator MI = M->begin(), ME = M->end(); MI != ME; ++MI) {
34    Method *Meth = *MI;
35
36    NormalizeMethod(Meth);
37
38    if (SelectInstructionsForMethod(Meth, Target)) {
39      cerr << "Instruction selection failed for method "
40	   << Meth->getName() << "\n\n";
41      return true;
42    }
43
44    if (ScheduleInstructionsWithSSA(Meth, Target)) {
45      cerr << "Instruction scheduling before allocation failed for method "
46	   << Meth->getName() << "\n\n";
47      return true;
48    }
49  }
50
51  return false;
52}
53
54
55
56//---------------------------------------------------------------------------
57// Function main()
58//
59// Entry point for the llc compiler.
60//---------------------------------------------------------------------------
61
62int main(int argc, char** argv) {
63  cl::ParseCommandLineOptions(argc, argv, " llvm system compiler\n");
64  UltraSparc Target;
65
66  Module *module = ParseBytecodeFile(InputFilename);
67  if (module == 0) {
68    cerr << "bytecode didn't read correctly.\n";
69    return 1;
70  }
71
72  if (CompileModule(module, Target)) {
73    cerr << "Error compiling " << InputFilename << "!\n";
74    delete module;
75    return 1;
76  }
77
78  // Clean up and exit
79  delete module;
80  return 0;
81}
82