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_LIB_TARGET_POWERPC_PPC_H
  16 #define LLVM_LIB_TARGET_POWERPC_PPC_H
  17
  18 #include "llvm/Support/CodeGen.h"
  19 #include "MCTargetDesc/PPCMCTargetDesc.h"
  20
  21 // GCC #defines PPC on Linux but we use it as our namespace name
  22 #undef PPC
  23
  24 namespace llvm {
  25   class PPCTargetMachine;
  26   class PassRegistry;
  27   class FunctionPass;
  28   class MachineInstr;
  29   class MachineOperand;
  30   class AsmPrinter;
  31   class MCInst;
  32   class MCOperand;
  33
  34   FunctionPass *createPPCCTRLoops();
  35 #ifndef NDEBUG
  36   FunctionPass *createPPCCTRLoopsVerify();
  37 #endif
  38   FunctionPass *createPPCLoopPreIncPrepPass(PPCTargetMachine &TM);
  39   FunctionPass *createPPCTOCRegDepsPass();
  40   FunctionPass *createPPCEarlyReturnPass();
  41   FunctionPass *createPPCVSXCopyPass();
  42   FunctionPass *createPPCVSXFMAMutatePass();
  43   FunctionPass *createPPCVSXSwapRemovalPass();
  44   FunctionPass *createPPCReduceCRLogicalsPass();
  45   FunctionPass *createPPCMIPeepholePass();
  46   FunctionPass *createPPCBranchSelectionPass();
  47   FunctionPass *createPPCBranchCoalescingPass();
  48   FunctionPass *createPPCQPXLoadSplatPass();
  49   FunctionPass *createPPCISelDag(PPCTargetMachine &TM, CodeGenOpt::Level OL);
  50   FunctionPass *createPPCTLSDynamicCallPass();
  51   FunctionPass *createPPCBoolRetToIntPass();
  52   FunctionPass *createPPCExpandISELPass();
  53   FunctionPass *createPPCPreEmitPeepholePass();
  54   void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
  55                                     AsmPrinter &AP, bool isDarwin);
  56   bool LowerPPCMachineOperandToMCOperand(const MachineOperand &MO,
  57                                          MCOperand &OutMO, AsmPrinter &AP,
  58                                          bool isDarwin);
  59
  60   void initializePPCVSXFMAMutatePass(PassRegistry&);
  61   void initializePPCBoolRetToIntPass(PassRegistry&);
  62   void initializePPCExpandISELPass(PassRegistry &);
  63   void initializePPCPreEmitPeepholePass(PassRegistry &);
  64   void initializePPCTLSDynamicCallPass(PassRegistry &);
  65   void initializePPCMIPeepholePass(PassRegistry&);
  66   extern char &PPCVSXFMAMutateID;
  67
  68   namespace PPCII {
  69
  70   /// Target Operand Flag enum.
  71   enum TOF {
  72     //===------------------------------------------------------------------===//
  73     // PPC Specific MachineOperand flags.
  74     MO_NO_FLAG,
  75
  76     /// On a symbol operand "FOO", this indicates that the reference is actually
  77     /// to "FOO@plt".  This is used for calls and jumps to external functions on
  78     /// for PIC calls on Linux and ELF systems.
  79     MO_PLT = 1,
  80
  81     /// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to
  82     /// the function's picbase, e.g. lo16(symbol-picbase).
  83     MO_PIC_FLAG = 2,
  84
  85     /// MO_NLP_FLAG - If this bit is set, the symbol reference is actually to
  86     /// the non_lazy_ptr for the global, e.g. lo16(symbol$non_lazy_ptr-picbase).
  87     MO_NLP_FLAG = 4,
  88
  89     /// MO_NLP_HIDDEN_FLAG - If this bit is set, the symbol reference is to a
  90     /// symbol with hidden visibility.  This causes a different kind of
  91     /// non-lazy-pointer to be generated.
  92     MO_NLP_HIDDEN_FLAG = 8,
  93
  94     /// The next are not flags but distinct values.
  95     MO_ACCESS_MASK = 0xf0,
  96
  97     /// MO_LO, MO_HA - lo16(symbol) and ha16(symbol)
  98     MO_LO = 1 << 4,
  99     MO_HA = 2 << 4,
 100
 101     MO_TPREL_LO = 4 << 4,
 102     MO_TPREL_HA = 3 << 4,
 103
 104     /// These values identify relocations on immediates folded
 105     /// into memory operations.
 106     MO_DTPREL_LO = 5 << 4,
 107     MO_TLSLD_LO = 6 << 4,
 108     MO_TOC_LO = 7 << 4,
 109
 110     // Symbol for VK_PPC_TLS fixup attached to an ADD instruction
 111     MO_TLS = 8 << 4
 112   };
 113   } // end namespace PPCII
 114
 115 } // end namespace llvm;
 116
 117 #endif