SparcTargetMachine.cpp revision 4ee451de366474b9c228b4e5fa573795a715216d 
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
21namespace {
22  // Register the target.
23  RegisterTarget<SparcTargetMachine> X("sparc", "  SPARC");
24}
25
26const TargetAsmInfo *SparcTargetMachine::createTargetAsmInfo() const {
27  return new SparcTargetAsmInfo(*this);
28}
29
30/// SparcTargetMachine ctor - Create an ILP32 architecture model
31///
32SparcTargetMachine::SparcTargetMachine(const Module &M, const std::string &FS)
33  : DataLayout("E-p:32:32-f128:128:128"),
34    Subtarget(M, FS), InstrInfo(Subtarget),
35    FrameInfo(TargetFrameInfo::StackGrowsDown, 8, 0) {
36}
37
38unsigned SparcTargetMachine::getModuleMatchQuality(const Module &M) {
39  std::string TT = M.getTargetTriple();
40  if (TT.size() >= 6 && std::string(TT.begin(), TT.begin()+6) == "sparc-")
41    return 20;
42
43  // If the target triple is something non-sparc, we don't match.
44  if (!TT.empty()) return 0;
45
46  if (M.getEndianness()  == Module::BigEndian &&
47      M.getPointerSize() == Module::Pointer32)
48#ifdef __sparc__
49    return 20;   // BE/32 ==> Prefer sparc on sparc
50#else
51    return 5;    // BE/32 ==> Prefer ppc elsewhere
52#endif
53  else if (M.getEndianness() != Module::AnyEndianness ||
54           M.getPointerSize() != Module::AnyPointerSize)
55    return 0;                                    // Match for some other target
56
57#if defined(__sparc__)
58  return 10;
59#else
60  return 0;
61#endif
62}
63
64bool SparcTargetMachine::addInstSelector(FunctionPassManager &PM, bool Fast) {
65  PM.add(createSparcISelDag(*this));
66  return false;
67}
68
69/// addPreEmitPass - This pass may be implemented by targets that want to run
70/// passes immediately before machine code is emitted.  This should return
71/// true if -print-machineinstrs should print out the code after the passes.
72bool SparcTargetMachine::addPreEmitPass(FunctionPassManager &PM, bool Fast) {
73  PM.add(createSparcFPMoverPass(*this));
74  PM.add(createSparcDelaySlotFillerPass(*this));
75  return true;
76}
77
78bool SparcTargetMachine::addAssemblyEmitter(FunctionPassManager &PM, bool Fast,
79                                            std::ostream &Out) {
80  // Output assembly language.
81  PM.add(createSparcCodePrinterPass(Out, *this));
82  return false;
83}
84