SparcTargetMachine.cpp revision 844731a7f1909f55935e3514c9e713a62d67662e 
1//===-- SparcTargetMachine.cpp - Define TargetMachine for Sparc -----------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// 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"
19using namespace llvm;
20
21// Register the target.
22static RegisterTarget<SparcTargetMachine> X("sparc", "  SPARC");
23
24const TargetAsmInfo *SparcTargetMachine::createTargetAsmInfo() const {
25  return new SparcTargetAsmInfo(*this);
26}
27
28/// SparcTargetMachine ctor - Create an ILP32 architecture model
29///
30SparcTargetMachine::SparcTargetMachine(const Module &M, const std::string &FS)
31  : DataLayout("E-p:32:32-f128:128:128"),
32    Subtarget(M, FS), InstrInfo(Subtarget),
33    FrameInfo(TargetFrameInfo::StackGrowsDown, 8, 0) {
34}
35
36unsigned SparcTargetMachine::getModuleMatchQuality(const Module &M) {
37  std::string TT = M.getTargetTriple();
38  if (TT.size() >= 6 && std::string(TT.begin(), TT.begin()+6) == "sparc-")
39    return 20;
40
41  // If the target triple is something non-sparc, we don't match.
42  if (!TT.empty()) return 0;
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#if defined(__sparc__)
56  return 10;
57#else
58  return 0;
59#endif
60}
61
62bool SparcTargetMachine::addInstSelector(PassManagerBase &PM, bool Fast) {
63  PM.add(createSparcISelDag(*this));
64  return false;
65}
66
67/// addPreEmitPass - This pass may be implemented by targets that want to run
68/// passes immediately before machine code is emitted.  This should return
69/// true if -print-machineinstrs should print out the code after the passes.
70bool SparcTargetMachine::addPreEmitPass(PassManagerBase &PM, bool Fast) {
71  PM.add(createSparcFPMoverPass(*this));
72  PM.add(createSparcDelaySlotFillerPass(*this));
73  return true;
74}
75
76bool SparcTargetMachine::addAssemblyEmitter(PassManagerBase &PM, bool Fast,
77                                            std::ostream &Out) {
78  // Output assembly language.
79  PM.add(createSparcCodePrinterPass(Out, *this));
80  return false;
81}
82