lib/Target/PowerPC/PPC.h

   1 //===-- PPC.h - Top-level interface for PowerPC Target ----------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file contains the entry points for global functions defined in the LLVM
  10 // PowerPC back-end.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_LIB_TARGET_POWERPC_PPC_H
  15 #define LLVM_LIB_TARGET_POWERPC_PPC_H
  16
  17 #include "llvm/Support/CodeGen.h"
  18
  19 // GCC #defines PPC on Linux but we use it as our namespace name
  20 #undef PPC
  21
  22 namespace llvm {
  23   class PPCTargetMachine;
  24   class PassRegistry;
  25   class FunctionPass;
  26   class MachineInstr;
  27   class MachineOperand;
  28   class AsmPrinter;
  29   class MCInst;
  30   class MCOperand;
  31
  32   FunctionPass *createPPCCTRLoops();
  33 #ifndef NDEBUG
  34   FunctionPass *createPPCCTRLoopsVerify();
  35 #endif
  36   FunctionPass *createPPCLoopPreIncPrepPass(PPCTargetMachine &TM);
  37   FunctionPass *createPPCTOCRegDepsPass();
  38   FunctionPass *createPPCEarlyReturnPass();
  39   FunctionPass *createPPCVSXCopyPass();
  40   FunctionPass *createPPCVSXFMAMutatePass();
  41   FunctionPass *createPPCVSXSwapRemovalPass();
  42   FunctionPass *createPPCReduceCRLogicalsPass();
  43   FunctionPass *createPPCMIPeepholePass();
  44   FunctionPass *createPPCBranchSelectionPass();
  45   FunctionPass *createPPCBranchCoalescingPass();
  46   FunctionPass *createPPCQPXLoadSplatPass();
  47   FunctionPass *createPPCISelDag(PPCTargetMachine &TM, CodeGenOpt::Level OL);
  48   FunctionPass *createPPCTLSDynamicCallPass();
  49   FunctionPass *createPPCBoolRetToIntPass();
  50   FunctionPass *createPPCExpandISELPass();
  51   FunctionPass *createPPCPreEmitPeepholePass();
  52   void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
  53                                     AsmPrinter &AP, bool isDarwin);
  54   bool LowerPPCMachineOperandToMCOperand(const MachineOperand &MO,
  55                                          MCOperand &OutMO, AsmPrinter &AP,
  56                                          bool isDarwin);
  57
  58   void initializePPCCTRLoopsPass(PassRegistry&);
  59 #ifndef NDEBUG
  60   void initializePPCCTRLoopsVerifyPass(PassRegistry&);
  61 #endif
  62   void initializePPCLoopPreIncPrepPass(PassRegistry&);
  63   void initializePPCTOCRegDepsPass(PassRegistry&);
  64   void initializePPCEarlyReturnPass(PassRegistry&);
  65   void initializePPCVSXCopyPass(PassRegistry&);
  66   void initializePPCVSXFMAMutatePass(PassRegistry&);
  67   void initializePPCVSXSwapRemovalPass(PassRegistry&);
  68   void initializePPCReduceCRLogicalsPass(PassRegistry&);
  69   void initializePPCBSelPass(PassRegistry&);
  70   void initializePPCBranchCoalescingPass(PassRegistry&);
  71   void initializePPCQPXLoadSplatPass(PassRegistry&);
  72   void initializePPCBoolRetToIntPass(PassRegistry&);
  73   void initializePPCExpandISELPass(PassRegistry &);
  74   void initializePPCPreEmitPeepholePass(PassRegistry &);
  75   void initializePPCTLSDynamicCallPass(PassRegistry &);
  76   void initializePPCMIPeepholePass(PassRegistry&);
  77
  78   extern char &PPCVSXFMAMutateID;
  79
  80   namespace PPCII {
  81
  82   /// Target Operand Flag enum.
  83   enum TOF {
  84     //===------------------------------------------------------------------===//
  85     // PPC Specific MachineOperand flags.
  86     MO_NO_FLAG,
  87
  88     /// On a symbol operand "FOO", this indicates that the reference is actually
  89     /// to "FOO@plt".  This is used for calls and jumps to external functions
  90     /// and for PIC calls on 32-bit ELF systems.
  91     MO_PLT = 1,
  92
  93     /// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to
  94     /// the function's picbase, e.g. lo16(symbol-picbase).
  95     MO_PIC_FLAG = 2,
  96
  97     /// MO_NLP_FLAG - If this bit is set, the symbol reference is actually to
  98     /// the non_lazy_ptr for the global, e.g. lo16(symbol$non_lazy_ptr-picbase).
  99     MO_NLP_FLAG = 4,
 100
 101     /// MO_NLP_HIDDEN_FLAG - If this bit is set, the symbol reference is to a
 102     /// symbol with hidden visibility.  This causes a different kind of
 103     /// non-lazy-pointer to be generated.
 104     MO_NLP_HIDDEN_FLAG = 8,
 105
 106     /// The next are not flags but distinct values.
 107     MO_ACCESS_MASK = 0xf0,
 108
 109     /// MO_LO, MO_HA - lo16(symbol) and ha16(symbol)
 110     MO_LO = 1 << 4,
 111     MO_HA = 2 << 4,
 112
 113     MO_TPREL_LO = 4 << 4,
 114     MO_TPREL_HA = 3 << 4,
 115
 116     /// These values identify relocations on immediates folded
 117     /// into memory operations.
 118     MO_DTPREL_LO = 5 << 4,
 119     MO_TLSLD_LO = 6 << 4,
 120     MO_TOC_LO = 7 << 4,
 121
 122     // Symbol for VK_PPC_TLS fixup attached to an ADD instruction
 123     MO_TLS = 8 << 4
 124   };
 125   } // end namespace PPCII
 126
 127 } // end namespace llvm;
 128
 129 #endif