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      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 "MCTargetDesc/PPCBaseInfo.h"
     19 #include "MCTargetDesc/PPCMCTargetDesc.h"
     20 #include <string>
     21 
     22 // GCC #defines PPC on Linux but we use it as our namespace name
     23 #undef PPC
     24 
     25 namespace llvm {
     26   class PPCTargetMachine;
     27   class FunctionPass;
     28   class formatted_raw_ostream;
     29   class JITCodeEmitter;
     30   class Target;
     31   class MachineInstr;
     32   class AsmPrinter;
     33   class MCInst;
     34   class TargetMachine;
     35 
     36   FunctionPass *createPPCBranchSelectionPass();
     37   FunctionPass *createPPCISelDag(PPCTargetMachine &TM);
     38   FunctionPass *createPPCJITCodeEmitterPass(PPCTargetMachine &TM,
     39                                             JITCodeEmitter &MCE);
     40   void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
     41                                     AsmPrinter &AP, bool isDarwin);
     42 
     43   namespace PPCII {
     44 
     45   /// Target Operand Flag enum.
     46   enum TOF {
     47     //===------------------------------------------------------------------===//
     48     // PPC Specific MachineOperand flags.
     49     MO_NO_FLAG,
     50 
     51     /// MO_DARWIN_STUB - On a symbol operand "FOO", this indicates that the
     52     /// reference is actually to the "FOO$stub" symbol.  This is used for calls
     53     /// and jumps to external functions on Tiger and earlier.
     54     MO_DARWIN_STUB = 1,
     55 
     56     /// MO_LO16, MO_HA16 - lo16(symbol) and ha16(symbol)
     57     MO_LO16 = 4, MO_HA16 = 8,
     58 
     59     /// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to
     60     /// the function's picbase, e.g. lo16(symbol-picbase).
     61     MO_PIC_FLAG = 16,
     62 
     63     /// MO_NLP_FLAG - If this bit is set, the symbol reference is actually to
     64     /// the non_lazy_ptr for the global, e.g. lo16(symbol$non_lazy_ptr-picbase).
     65     MO_NLP_FLAG = 32,
     66 
     67     /// MO_NLP_HIDDEN_FLAG - If this bit is set, the symbol reference is to a
     68     /// symbol with hidden visibility.  This causes a different kind of
     69     /// non-lazy-pointer to be generated.
     70     MO_NLP_HIDDEN_FLAG = 64
     71   };
     72   } // end namespace PPCII
     73 
     74 } // end namespace llvm;
     75 
     76 #endif
     77