lib/Target/ARM/ARMTargetMachine.h

   1 //===-- ARMTargetMachine.h - Define TargetMachine for ARM -------*- 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 ARM specific subclass of TargetMachine.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef ARMTARGETMACHINE_H
  15 #define ARMTARGETMACHINE_H
  16
  17 #include "llvm/Target/TargetMachine.h"
  18 #include "llvm/Target/TargetData.h"
  19 #include "llvm/Target/TargetFrameInfo.h"
  20 #include "ARMInstrInfo.h"
  21 #include "ARMFrameInfo.h"
  22 #include "ARMJITInfo.h"
  23 #include "ARMSubtarget.h"
  24 #include "ARMISelLowering.h"
  25
  26 namespace llvm {
  27
  28 class Module;
  29
  30 class ARMTargetMachine : public LLVMTargetMachine {
  31   ARMSubtarget      Subtarget;
  32   const TargetData  DataLayout;       // Calculates type size & alignment
  33   ARMInstrInfo      InstrInfo;
  34   ARMFrameInfo      FrameInfo;
  35   ARMJITInfo        JITInfo;
  36   ARMTargetLowering TLInfo;
  37   Reloc::Model      DefRelocModel;    // Reloc model before it's overridden.
  38
  39 protected:
  40   // To avoid having target depend on the asmprinter stuff libraries, asmprinter
  41   // set this functions to ctor pointer at startup time if they are linked in.
  42   typedef FunctionPass *(*AsmPrinterCtorFn)(raw_ostream &o,
  43                                             ARMTargetMachine &tm,
  44                                             CodeGenOpt::Level OptLevel,
  45                                             bool verbose);
  46   static AsmPrinterCtorFn AsmPrinterCtor;
  47
  48 public:
  49   ARMTargetMachine(const Module &M, const std::string &FS, bool isThumb = false);
  50
  51   virtual const ARMInstrInfo     *getInstrInfo() const { return &InstrInfo; }
  52   virtual const ARMFrameInfo     *getFrameInfo() const { return &FrameInfo; }
  53   virtual       ARMJITInfo       *getJITInfo()         { return &JITInfo; }
  54   virtual const ARMRegisterInfo  *getRegisterInfo() const {
  55     return &InstrInfo.getRegisterInfo();
  56   }
  57   virtual const TargetData       *getTargetData() const { return &DataLayout; }
  58   virtual const ARMSubtarget  *getSubtargetImpl() const { return &Subtarget; }
  59   virtual       ARMTargetLowering *getTargetLowering() const {
  60     return const_cast<ARMTargetLowering*>(&TLInfo);
  61   }
  62
  63   static void registerAsmPrinter(AsmPrinterCtorFn F) {
  64     AsmPrinterCtor = F;
  65   }
  66
  67   static unsigned getModuleMatchQuality(const Module &M);
  68   static unsigned getJITMatchQuality();
  69
  70   virtual const TargetAsmInfo *createTargetAsmInfo() const;
  71
  72   // Pass Pipeline Configuration
  73   virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
  74   virtual bool addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
  75   virtual bool addAssemblyEmitter(PassManagerBase &PM,
  76                                   CodeGenOpt::Level OptLevel,
  77                                   bool Verbose, raw_ostream &Out);
  78   virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
  79                               bool DumpAsm, MachineCodeEmitter &MCE);
  80   virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
  81                                     CodeGenOpt::Level OptLevel,
  82                                     bool DumpAsm,
  83                                     MachineCodeEmitter &MCE);
  84 };
  85
  86 /// ThumbTargetMachine - Thumb target machine.
  87 ///
  88 class ThumbTargetMachine : public ARMTargetMachine {
  89 public:
  90   ThumbTargetMachine(const Module &M, const std::string &FS);
  91
  92   static unsigned getJITMatchQuality();
  93   static unsigned getModuleMatchQuality(const Module &M);
  94 };
  95
  96 } // end namespace llvm
  97
  98 #endif