lib/Target/X86/X86TargetMachine.h

   1 //===-- X86TargetMachine.h - Define TargetMachine for the X86 ---*- C++ -*-===//
   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 declares the X86 specific subclass of TargetMachine.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef X86TARGETMACHINE_H
  15 #define X86TARGETMACHINE_H
  16
  17 #include "llvm/Target/TargetMachine.h"
  18 #include "llvm/Target/TargetData.h"
  19 #include "llvm/Target/TargetFrameInfo.h"
  20 #include "X86.h"
  21 #include "X86ELFWriterInfo.h"
  22 #include "X86InstrInfo.h"
  23 #include "X86JITInfo.h"
  24 #include "X86Subtarget.h"
  25 #include "X86ISelLowering.h"
  26
  27 namespace llvm {
  28
  29 class raw_ostream;
  30
  31 class X86TargetMachine : public LLVMTargetMachine {
  32   X86Subtarget      Subtarget;
  33   const TargetData  DataLayout; // Calculates type size & alignment
  34   TargetFrameInfo   FrameInfo;
  35   X86InstrInfo      InstrInfo;
  36   X86JITInfo        JITInfo;
  37   X86TargetLowering TLInfo;
  38   X86ELFWriterInfo  ELFWriterInfo;
  39   Reloc::Model      DefRelocModel; // Reloc model before it's overridden.
  40
  41 protected:
  42   virtual const TargetAsmInfo *createTargetAsmInfo() const;
  43
  44   // To avoid having target depend on the asmprinter stuff libraries, asmprinter
  45   // set this functions to ctor pointer at startup time if they are linked in.
  46   typedef FunctionPass *(*AsmPrinterCtorFn)(raw_ostream &o,
  47                                             X86TargetMachine &tm,
  48                                             CodeGenOpt::Level OptLevel,
  49                                             bool verbose);
  50   static AsmPrinterCtorFn AsmPrinterCtor;
  51
  52 public:
  53   X86TargetMachine(const Module &M, const std::string &FS, bool is64Bit);
  54
  55   virtual const X86InstrInfo     *getInstrInfo() const { return &InstrInfo; }
  56   virtual const TargetFrameInfo  *getFrameInfo() const { return &FrameInfo; }
  57   virtual       X86JITInfo       *getJITInfo()         { return &JITInfo; }
  58   virtual const X86Subtarget     *getSubtargetImpl() const{ return &Subtarget; }
  59   virtual       X86TargetLowering *getTargetLowering() const {
  60     return const_cast<X86TargetLowering*>(&TLInfo);
  61   }
  62   virtual const X86RegisterInfo  *getRegisterInfo() const {
  63     return &InstrInfo.getRegisterInfo();
  64   }
  65   virtual const TargetData       *getTargetData() const { return &DataLayout; }
  66   virtual const X86ELFWriterInfo *getELFWriterInfo() const {
  67     return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
  68   }
  69
  70   static unsigned getModuleMatchQuality(const Module &M);
  71   static unsigned getJITMatchQuality();
  72
  73   static void registerAsmPrinter(AsmPrinterCtorFn F) {
  74     AsmPrinterCtor = F;
  75   }
  76
  77   // Set up the pass pipeline.
  78   virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
  79   virtual bool addPreRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
  80   virtual bool addPostRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
  81   virtual bool addAssemblyEmitter(PassManagerBase &PM,
  82                                   CodeGenOpt::Level OptLevel,
  83                                   bool Verbose, raw_ostream &Out);
  84   virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
  85                               bool DumpAsm, MachineCodeEmitter &MCE);
  86   virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
  87                                     CodeGenOpt::Level OptLevel,
  88                                     bool DumpAsm, MachineCodeEmitter &MCE);
  89
  90   /// symbolicAddressesAreRIPRel - Return true if symbolic addresses are
  91   /// RIP-relative on this machine, taking into consideration the relocation
  92   /// model and subtarget. RIP-relative addresses cannot have a separate
  93   /// base or index register.
  94   bool symbolicAddressesAreRIPRel() const;
  95 };
  96
  97 /// X86_32TargetMachine - X86 32-bit target machine.
  98 ///
  99 class X86_32TargetMachine : public X86TargetMachine {
 100 public:
 101   X86_32TargetMachine(const Module &M, const std::string &FS);
 102
 103   static unsigned getJITMatchQuality();
 104   static unsigned getModuleMatchQuality(const Module &M);
 105 };
 106
 107 /// X86_64TargetMachine - X86 64-bit target machine.
 108 ///
 109 class X86_64TargetMachine : public X86TargetMachine {
 110 public:
 111   X86_64TargetMachine(const Module &M, const std::string &FS);
 112
 113   static unsigned getJITMatchQuality();
 114   static unsigned getModuleMatchQuality(const Module &M);
 115 };
 116
 117 } // End llvm namespace
 118
 119 #endif