SparcTargetMachine.cpp revision fde1b3bb2f15b74c713d98a79fcddaff1ac00dd1 
1//===-- SparcTargetMachine.cpp - Define TargetMachine for Sparc -----------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file was developed by the LLVM research group and is distributed under
6// the University of Illinois Open Source License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10//
11//===----------------------------------------------------------------------===//
12
13#include "SparcTargetAsmInfo.h"
14#include "SparcTargetMachine.h"
15#include "Sparc.h"
16#include "llvm/Module.h"
17#include "llvm/PassManager.h"
18#include "llvm/Target/TargetMachineRegistry.h"
19#include <iostream>
20using namespace llvm;
21
22namespace {
23  // Register the target.
24  RegisterTarget<SparcTargetMachine> X("sparc", "  SPARC");
25}
26
27const TargetAsmInfo *SparcTargetMachine::createTargetAsmInfo() const {
28  return new SparcTargetAsmInfo(*this);
29}
30
31/// SparcTargetMachine ctor - Create an ILP32 architecture model
32///
33SparcTargetMachine::SparcTargetMachine(const Module &M, const std::string &FS)
34  : DataLayout("E-p:32:32"),
35    Subtarget(M, FS), InstrInfo(Subtarget),
36    FrameInfo(TargetFrameInfo::StackGrowsDown, 8, 0) {
37}
38
39unsigned SparcTargetMachine::getModuleMatchQuality(const Module &M) {
40  std::string TT = M.getTargetTriple();
41  if (TT.size() >= 6 && std::string(TT.begin(), TT.begin()+6) == "sparc-")
42    return 20;
43
44  if (M.getEndianness()  == Module::BigEndian &&
45      M.getPointerSize() == Module::Pointer32)
46#ifdef __sparc__
47    return 20;   // BE/32 ==> Prefer sparc on sparc
48#else
49    return 5;    // BE/32 ==> Prefer ppc elsewhere
50#endif
51  else if (M.getEndianness() != Module::AnyEndianness ||
52           M.getPointerSize() != Module::AnyPointerSize)
53    return 0;                                    // Match for some other target
54
55  return 0;
56}
57
58bool SparcTargetMachine::addInstSelector(FunctionPassManager &PM, bool Fast) {
59  PM.add(createSparcISelDag(*this));
60  return false;
61}
62
63/// addPreEmitPass - This pass may be implemented by targets that want to run
64/// passes immediately before machine code is emitted.  This should return
65/// true if -print-machineinstrs should print out the code after the passes.
66bool SparcTargetMachine::addPreEmitPass(FunctionPassManager &PM, bool Fast) {
67  PM.add(createSparcFPMoverPass(*this));
68  PM.add(createSparcDelaySlotFillerPass(*this));
69  return true;
70}
71
72bool SparcTargetMachine::addAssemblyEmitter(FunctionPassManager &PM, bool Fast,
73                                            std::ostream &Out) {
74  // Output assembly language.
75  PM.add(createSparcCodePrinterPass(Out, *this));
76  return false;
77}
78