lib/Target/IA64/IA64TargetMachine.cpp

   1 //===-- IA64TargetMachine.cpp - Define TargetMachine for IA64 -------------===//
   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 // This file implements the IA64 specific subclass of TargetMachine.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "IA64TargetAsmInfo.h"
  15 #include "IA64TargetMachine.h"
  16 #include "IA64.h"
  17 #include "llvm/Module.h"
  18 #include "llvm/PassManager.h"
  19 #include "llvm/Target/TargetMachineRegistry.h"
  20 using namespace llvm;
  21
  22 // Register the target
  23 extern Target TheIA64Target;
  24 static RegisterTarget<IA64TargetMachine> X(TheIA64Target, "ia64",
  25                                            "IA-64 (Itanium) [experimental]");
  26
  27 // No assembler printer by default
  28 IA64TargetMachine::AsmPrinterCtorFn IA64TargetMachine::AsmPrinterCtor = 0;
  29
  30 // Force static initialization.
  31 extern "C" void LLVMInitializeIA64Target() { }
  32
  33 const TargetAsmInfo *IA64TargetMachine::createTargetAsmInfo() const {
  34   return new IA64TargetAsmInfo(*this);
  35 }
  36
  37 unsigned IA64TargetMachine::getModuleMatchQuality(const Module &M) {
  38   // we match [iI][aA]*64
  39   bool seenIA64=false;
  40   std::string TT = M.getTargetTriple();
  41
  42   if (TT.size() >= 4) {
  43     if( (TT[0]=='i' || TT[0]=='I') &&
  44         (TT[1]=='a' || TT[1]=='A') ) {
  45       for(unsigned int i=2; i<(TT.size()-1); i++)
  46         if(TT[i]=='6' && TT[i+1]=='4')
  47           seenIA64=true;
  48     }
  49
  50     if (seenIA64)
  51       return 20; // strong match
  52   }
  53   // If the target triple is something non-ia64, we don't match.
  54   if (!TT.empty()) return 0;
  55
  56 #if defined(__ia64__) || defined(__IA64__)
  57   return 5;
  58 #else
  59   return 0;
  60 #endif
  61 }
  62
  63 /// IA64TargetMachine ctor - Create an LP64 architecture model
  64 ///
  65 IA64TargetMachine::IA64TargetMachine(const Target &T, const Module &M,
  66                                      const std::string &FS)
  67   : LLVMTargetMachine(T),
  68     DataLayout("e-f80:128:128"),
  69     FrameInfo(TargetFrameInfo::StackGrowsDown, 16, 0),
  70     TLInfo(*this) { // FIXME? check this stuff
  71 }
  72
  73
  74 //===----------------------------------------------------------------------===//
  75 // Pass Pipeline Configuration
  76 //===----------------------------------------------------------------------===//
  77
  78 bool IA64TargetMachine::addInstSelector(PassManagerBase &PM,
  79                                         CodeGenOpt::Level OptLevel) {
  80   PM.add(createIA64DAGToDAGInstructionSelector(*this));
  81   return false;
  82 }
  83
  84 bool IA64TargetMachine::addPreEmitPass(PassManagerBase &PM,
  85                                        CodeGenOpt::Level OptLevel) {
  86   // Make sure everything is bundled happily
  87   PM.add(createIA64BundlingPass(*this));
  88   return true;
  89 }
  90 bool IA64TargetMachine::addAssemblyEmitter(PassManagerBase &PM,
  91                                            CodeGenOpt::Level OptLevel,
  92                                            bool Verbose,
  93                                            formatted_raw_ostream &Out) {
  94   // Output assembly language.
  95   assert(AsmPrinterCtor && "AsmPrinter was not linked in");
  96   if (AsmPrinterCtor)
  97     PM.add(AsmPrinterCtor(Out, *this, Verbose));
  98   return false;
  99 }
 100