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"
19 using namespace llvm;
20 
21 // Register the target.
22 static RegisterTarget<SparcTargetMachine> X("sparc", "SPARC");
23 
24 // No assembler printer by default
25 SparcTargetMachine::AsmPrinterCtorFn SparcTargetMachine::AsmPrinterCtor = 0;
26 
27 
28 // Force static initialization.
29 extern "C" void LLVMInitializeSparcTarget() { }
30 
31 const 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 ///
38 SparcTargetMachine::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 
44 unsigned 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 
70 bool 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.
79 bool SparcTargetMachine::addPreEmitPass(PassManagerBase &PM,
80                                         CodeGenOpt::Level OptLevel){
81   PM.add(createSparcFPMoverPass(*this));
82   PM.add(createSparcDelaySlotFillerPass(*this));
83   return true;
84 }
85 
86 bool SparcTargetMachine::addAssemblyEmitter(PassManagerBase &PM,
87                                             CodeGenOpt::Level OptLevel,
88                                             bool Verbose,
89                                             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