SparcTargetMachine.cpp revision 2286f8dc4cec0625f7d7a14e2570926cf8599646 
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
24// No assembler printer by default
25SparcTargetMachine::AsmPrinterCtorFn SparcTargetMachine::AsmPrinterCtor = 0;
26
27
28// Force static initialization.
29extern "C" void LLVMInitializeSparcTarget() { }
30
31const TargetAsmInfo *SparcTargetMachine::createTargetAsmInfo() const {
32  // FIXME: Handle Solaris subtarget someday :)
33  return new SparcELFTargetAsmInfo(*this);
34}
35
36/// SparcTargetMachine ctor - Create an ILP32 architecture model
37///
38SparcTargetMachine::SparcTargetMachine(const Module &M, const std::string &FS)
39  : DataLayout("E-p:32:32-f128:128:128"),
40    Subtarget(M, FS), TLInfo(*this), InstrInfo(Subtarget),
41    FrameInfo(TargetFrameInfo::StackGrowsDown, 8, 0) {
42}
43
44unsigned SparcTargetMachine::getModuleMatchQuality(const Module &M) {
45  std::string TT = M.getTargetTriple();
46  if (TT.size() >= 6 && std::string(TT.begin(), TT.begin()+6) == "sparc-")
47    return 20;
48
49  // If the target triple is something non-sparc, we don't match.
50  if (!TT.empty()) return 0;
51
52  if (M.getEndianness()  == Module::BigEndian &&
53      M.getPointerSize() == Module::Pointer32)
54#ifdef __sparc__
55    return 20;   // BE/32 ==> Prefer sparc on sparc
56#else
57    return 5;    // BE/32 ==> Prefer ppc elsewhere
58#endif
59  else if (M.getEndianness() != Module::AnyEndianness ||
60           M.getPointerSize() != Module::AnyPointerSize)
61    return 0;                                    // Match for some other target
62
63#if defined(__sparc__)
64  return 10;
65#else
66  return 0;
67#endif
68}
69
70bool SparcTargetMachine::addInstSelector(PassManagerBase &PM,
71                                         CodeGenOpt::Level OptLevel) {
72  PM.add(createSparcISelDag(*this));
73  return false;
74}
75
76/// addPreEmitPass - This pass may be implemented by targets that want to run
77/// passes immediately before machine code is emitted.  This should return
78/// true if -print-machineinstrs should print out the code after the passes.
79bool SparcTargetMachine::addPreEmitPass(PassManagerBase &PM,
80                                        CodeGenOpt::Level OptLevel){
81  PM.add(createSparcFPMoverPass(*this));
82  PM.add(createSparcDelaySlotFillerPass(*this));
83  return true;
84}
85
86bool SparcTargetMachine::addAssemblyEmitter(PassManagerBase &PM,
87                                            CodeGenOpt::Level OptLevel,
88                                            bool Verbose,
89                                            formatted_raw_ostream &Out) {
90  // Output assembly language.
91  assert(AsmPrinterCtor && "AsmPrinter was not linked in");
92  if (AsmPrinterCtor)
93    PM.add(AsmPrinterCtor(Out, *this, Verbose));
94  return false;
95}
96