lib/Target/Mips/MCTargetDesc/MipsInstPrinter.h

   1 //=== MipsInstPrinter.h - Convert Mips MCInst to assembly syntax -*- 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 class prints a Mips MCInst to a .s file.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLVM_LIB_TARGET_MIPS_MCTARGETDESC_MIPSINSTPRINTER_H
  14 #define LLVM_LIB_TARGET_MIPS_MCTARGETDESC_MIPSINSTPRINTER_H
  15 #include "llvm/MC/MCInstPrinter.h"
  16
  17 namespace llvm {
  18 // These enumeration declarations were originally in MipsInstrInfo.h but
  19 // had to be moved here to avoid circular dependencies between
  20 // LLVMMipsCodeGen and LLVMMipsAsmPrinter.
  21 namespace Mips {
  22 // Mips Branch Codes
  23 enum FPBranchCode {
  24   BRANCH_F,
  25   BRANCH_T,
  26   BRANCH_FL,
  27   BRANCH_TL,
  28   BRANCH_INVALID
  29 };
  30
  31 // Mips Condition Codes
  32 enum CondCode {
  33   // To be used with float branch True
  34   FCOND_F,
  35   FCOND_UN,
  36   FCOND_OEQ,
  37   FCOND_UEQ,
  38   FCOND_OLT,
  39   FCOND_ULT,
  40   FCOND_OLE,
  41   FCOND_ULE,
  42   FCOND_SF,
  43   FCOND_NGLE,
  44   FCOND_SEQ,
  45   FCOND_NGL,
  46   FCOND_LT,
  47   FCOND_NGE,
  48   FCOND_LE,
  49   FCOND_NGT,
  50
  51   // To be used with float branch False
  52   // This conditions have the same mnemonic as the
  53   // above ones, but are used with a branch False;
  54   FCOND_T,
  55   FCOND_OR,
  56   FCOND_UNE,
  57   FCOND_ONE,
  58   FCOND_UGE,
  59   FCOND_OGE,
  60   FCOND_UGT,
  61   FCOND_OGT,
  62   FCOND_ST,
  63   FCOND_GLE,
  64   FCOND_SNE,
  65   FCOND_GL,
  66   FCOND_NLT,
  67   FCOND_GE,
  68   FCOND_NLE,
  69   FCOND_GT
  70 };
  71
  72 const char *MipsFCCToString(Mips::CondCode CC);
  73 } // end namespace Mips
  74
  75 class MipsInstPrinter : public MCInstPrinter {
  76 public:
  77   MipsInstPrinter(const MCAsmInfo &MAI, const MCInstrInfo &MII,
  78                   const MCRegisterInfo &MRI)
  79     : MCInstPrinter(MAI, MII, MRI) {}
  80
  81   // Autogenerated by tblgen.
  82   void printInstruction(const MCInst *MI, raw_ostream &O);
  83   static const char *getRegisterName(unsigned RegNo);
  84
  85   void printRegName(raw_ostream &OS, unsigned RegNo) const override;
  86   void printInst(const MCInst *MI, raw_ostream &O, StringRef Annot,
  87                  const MCSubtargetInfo &STI) override;
  88
  89   bool printAliasInstr(const MCInst *MI, raw_ostream &OS);
  90   void printCustomAliasOperand(const MCInst *MI, unsigned OpIdx,
  91                                unsigned PrintMethodIdx, raw_ostream &O);
  92
  93 private:
  94   void printOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
  95   template <unsigned Bits, unsigned Offset = 0>
  96   void printUImm(const MCInst *MI, int opNum, raw_ostream &O);
  97   void printMemOperand(const MCInst *MI, int opNum, raw_ostream &O);
  98   void printMemOperandEA(const MCInst *MI, int opNum, raw_ostream &O);
  99   void printFCCOperand(const MCInst *MI, int opNum, raw_ostream &O);
 100   void printSHFMask(const MCInst *MI, int opNum, raw_ostream &O);
 101
 102   bool printAlias(const char *Str, const MCInst &MI, unsigned OpNo,
 103                   raw_ostream &OS);
 104   bool printAlias(const char *Str, const MCInst &MI, unsigned OpNo0,
 105                   unsigned OpNo1, raw_ostream &OS);
 106   bool printAlias(const MCInst &MI, raw_ostream &OS);
 107   void printSaveRestore(const MCInst *MI, raw_ostream &O);
 108   void printRegisterList(const MCInst *MI, int opNum, raw_ostream &O);
 109 };
 110 } // end namespace llvm
 111
 112 #endif