lib/Target/PowerPC/PPC.h

   1 //===-- PPC.h - Top-level interface for PowerPC Target ----------*- 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 contains the entry points for global functions defined in the LLVM
  11 // PowerPC back-end.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef LLVM_TARGET_POWERPC_H
  16 #define LLVM_TARGET_POWERPC_H
  17
  18 #include <string>
  19
  20 // GCC #defines PPC on Linux but we use it as our namespace name
  21 #undef PPC
  22
  23 namespace llvm {
  24   class PPCTargetMachine;
  25   class FunctionPass;
  26   class formatted_raw_ostream;
  27   class JITCodeEmitter;
  28   class Target;
  29   class MachineInstr;
  30   class AsmPrinter;
  31   class MCInst;
  32   class MCCodeEmitter;
  33   class MCContext;
  34   class TargetMachine;
  35   class TargetAsmBackend;
  36
  37   FunctionPass *createPPCBranchSelectionPass();
  38   FunctionPass *createPPCISelDag(PPCTargetMachine &TM);
  39   FunctionPass *createPPCJITCodeEmitterPass(PPCTargetMachine &TM,
  40                                             JITCodeEmitter &MCE);
  41   MCCodeEmitter *createPPCMCCodeEmitter(const Target &, TargetMachine &TM,
  42                                         MCContext &Ctx);
  43   TargetAsmBackend *createPPCAsmBackend(const Target &, const std::string &);
  44
  45   void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
  46                                     AsmPrinter &AP, bool isDarwin);
  47
  48   extern Target ThePPC32Target;
  49   extern Target ThePPC64Target;
  50
  51   namespace PPCII {
  52
  53   /// Target Operand Flag enum.
  54   enum TOF {
  55     //===------------------------------------------------------------------===//
  56     // PPC Specific MachineOperand flags.
  57     MO_NO_FLAG,
  58
  59     /// MO_DARWIN_STUB - On a symbol operand "FOO", this indicates that the
  60     /// reference is actually to the "FOO$stub" symbol.  This is used for calls
  61     /// and jumps to external functions on Tiger and earlier.
  62     MO_DARWIN_STUB = 1,
  63
  64     /// MO_LO16, MO_HA16 - lo16(symbol) and ha16(symbol)
  65     MO_LO16 = 4, MO_HA16 = 8,
  66
  67     /// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to
  68     /// the function's picbase, e.g. lo16(symbol-picbase).
  69     MO_PIC_FLAG = 16,
  70
  71     /// MO_NLP_FLAG - If this bit is set, the symbol reference is actually to
  72     /// the non_lazy_ptr for the global, e.g. lo16(symbol$non_lazy_ptr-picbase).
  73     MO_NLP_FLAG = 32,
  74
  75     /// MO_NLP_HIDDEN_FLAG - If this bit is set, the symbol reference is to a
  76     /// symbol with hidden visibility.  This causes a different kind of
  77     /// non-lazy-pointer to be generated.
  78     MO_NLP_HIDDEN_FLAG = 64
  79   };
  80   } // end namespace PPCII
  81
  82 } // end namespace llvm;
  83
  84 // Defines symbolic names for PowerPC registers.  This defines a mapping from
  85 // register name to register number.
  86 //
  87 #define GET_REGINFO_ENUM
  88 #include "PPCGenRegisterInfo.inc"
  89
  90 // Defines symbolic names for the PowerPC instructions.
  91 //
  92 #define GET_INSTRINFO_ENUM
  93 #include "PPCGenInstrInfo.inc"
  94
  95 #endif