lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.h

   1 //===-- X86ATTAsmPrinter.h - Convert X86 LLVM code to AT&T assembly -------===//
   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 // AT&T assembly code printer class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef X86ATTASMPRINTER_H
  15 #define X86ATTASMPRINTER_H
  16
  17 #include "../X86.h"
  18 #include "../X86MachineFunctionInfo.h"
  19 #include "../X86TargetMachine.h"
  20 #include "llvm/ADT/StringSet.h"
  21 #include "llvm/CodeGen/AsmPrinter.h"
  22 #include "llvm/CodeGen/DwarfWriter.h"
  23 #include "llvm/CodeGen/MachineModuleInfo.h"
  24 #include "llvm/CodeGen/ValueTypes.h"
  25 #include "llvm/Support/Compiler.h"
  26
  27 namespace llvm {
  28
  29 class MachineJumpTableInfo;
  30 class MCContext;
  31 class MCInst;
  32 class MCStreamer;
  33
  34 class VISIBILITY_HIDDEN X86ATTAsmPrinter : public AsmPrinter {
  35   const X86Subtarget *Subtarget;
  36
  37   MCContext *Context;
  38   MCStreamer *Streamer;
  39  public:
  40   explicit X86ATTAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
  41                             const TargetAsmInfo *T, bool V)
  42     : AsmPrinter(O, TM, T, V) {
  43     Subtarget = &TM.getSubtarget<X86Subtarget>();
  44     Context = 0;
  45     Streamer = 0;
  46   }
  47
  48   virtual const char *getPassName() const {
  49     return "X86 AT&T-Style Assembly Printer";
  50   }
  51
  52   void getAnalysisUsage(AnalysisUsage &AU) const {
  53     AU.setPreservesAll();
  54     if (Subtarget->isTargetDarwin() ||
  55         Subtarget->isTargetELF() ||
  56         Subtarget->isTargetCygMing()) {
  57       AU.addRequired<MachineModuleInfo>();
  58     }
  59     AU.addRequired<DwarfWriter>();
  60     AsmPrinter::getAnalysisUsage(AU);
  61   }
  62
  63   bool doInitialization(Module &M);
  64   bool doFinalization(Module &M);
  65
  66   /// printInstruction - This method is automatically generated by tablegen
  67   /// from the instruction set description.  This method returns true if the
  68   /// machine instruction was sufficiently described to print it, otherwise it
  69   /// returns false.
  70   bool printInstruction(const MachineInstr *MI);
  71
  72
  73   // New MCInst printing stuff.
  74   bool printInstruction(const MCInst *MI);
  75
  76   void printSymbolOperand(const MachineOperand &MO);
  77   void printOperand(const MCInst *MI, unsigned OpNo,
  78                     const char *Modifier = 0);
  79   void printMemReference(const MCInst *MI, unsigned Op);
  80   void printLeaMemReference(const MCInst *MI, unsigned Op);
  81   void printSSECC(const MCInst *MI, unsigned Op);
  82   void printPICLabel(const MCInst *MI, unsigned Op);
  83   void print_pcrel_imm(const MCInst *MI, unsigned OpNo);
  84
  85   void printi8mem(const MCInst *MI, unsigned OpNo) {
  86     printMemReference(MI, OpNo);
  87   }
  88   void printi16mem(const MCInst *MI, unsigned OpNo) {
  89     printMemReference(MI, OpNo);
  90   }
  91   void printi32mem(const MCInst *MI, unsigned OpNo) {
  92     printMemReference(MI, OpNo);
  93   }
  94   void printi64mem(const MCInst *MI, unsigned OpNo) {
  95     printMemReference(MI, OpNo);
  96   }
  97   void printi128mem(const MCInst *MI, unsigned OpNo) {
  98     printMemReference(MI, OpNo);
  99   }
 100   void printf32mem(const MCInst *MI, unsigned OpNo) {
 101     printMemReference(MI, OpNo);
 102   }
 103   void printf64mem(const MCInst *MI, unsigned OpNo) {
 104     printMemReference(MI, OpNo);
 105   }
 106   void printf80mem(const MCInst *MI, unsigned OpNo) {
 107     printMemReference(MI, OpNo);
 108   }
 109   void printf128mem(const MCInst *MI, unsigned OpNo) {
 110     printMemReference(MI, OpNo);
 111   }
 112   void printlea32mem(const MCInst *MI, unsigned OpNo) {
 113     printLeaMemReference(MI, OpNo);
 114   }
 115   void printlea64mem(const MCInst *MI, unsigned OpNo) {
 116     printLeaMemReference(MI, OpNo);
 117   }
 118   void printlea64_32mem(const MCInst *MI, unsigned OpNo) {
 119     printLeaMemReference(MI, OpNo);
 120   }
 121
 122
 123
 124   // These methods are used by the tablegen'erated instruction printer.
 125   void printOperand(const MachineInstr *MI, unsigned OpNo,
 126                     const char *Modifier = 0);
 127   void print_pcrel_imm(const MachineInstr *MI, unsigned OpNo);
 128   void printi8mem(const MachineInstr *MI, unsigned OpNo) {
 129     printMemReference(MI, OpNo);
 130   }
 131   void printi16mem(const MachineInstr *MI, unsigned OpNo) {
 132     printMemReference(MI, OpNo);
 133   }
 134   void printi32mem(const MachineInstr *MI, unsigned OpNo) {
 135     printMemReference(MI, OpNo);
 136   }
 137   void printi64mem(const MachineInstr *MI, unsigned OpNo) {
 138     printMemReference(MI, OpNo);
 139   }
 140   void printi128mem(const MachineInstr *MI, unsigned OpNo) {
 141     printMemReference(MI, OpNo);
 142   }
 143   void printi256mem(const MachineInstr *MI, unsigned OpNo) {
 144     printMemReference(MI, OpNo);
 145   }
 146   void printf32mem(const MachineInstr *MI, unsigned OpNo) {
 147     printMemReference(MI, OpNo);
 148   }
 149   void printf64mem(const MachineInstr *MI, unsigned OpNo) {
 150     printMemReference(MI, OpNo);
 151   }
 152   void printf80mem(const MachineInstr *MI, unsigned OpNo) {
 153     printMemReference(MI, OpNo);
 154   }
 155   void printf128mem(const MachineInstr *MI, unsigned OpNo) {
 156     printMemReference(MI, OpNo);
 157   }
 158   void printf256mem(const MachineInstr *MI, unsigned OpNo) {
 159     printMemReference(MI, OpNo);
 160   }
 161   void printlea32mem(const MachineInstr *MI, unsigned OpNo) {
 162     printLeaMemReference(MI, OpNo);
 163   }
 164   void printlea64mem(const MachineInstr *MI, unsigned OpNo) {
 165     printLeaMemReference(MI, OpNo);
 166   }
 167   void printlea64_32mem(const MachineInstr *MI, unsigned OpNo) {
 168     printLeaMemReference(MI, OpNo, "subreg64");
 169   }
 170
 171   bool printAsmMRegister(const MachineOperand &MO, char Mode);
 172   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
 173                        unsigned AsmVariant, const char *ExtraCode);
 174   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
 175                              unsigned AsmVariant, const char *ExtraCode);
 176
 177   void printMachineInstruction(const MachineInstr *MI);
 178   void printSSECC(const MachineInstr *MI, unsigned Op);
 179   void printMemReference(const MachineInstr *MI, unsigned Op,
 180                          const char *Modifier=NULL);
 181   void printLeaMemReference(const MachineInstr *MI, unsigned Op,
 182                             const char *Modifier=NULL);
 183   void printPICJumpTableSetLabel(unsigned uid,
 184                                  const MachineBasicBlock *MBB) const;
 185   void printPICJumpTableSetLabel(unsigned uid, unsigned uid2,
 186                                  const MachineBasicBlock *MBB) const {
 187     AsmPrinter::printPICJumpTableSetLabel(uid, uid2, MBB);
 188   }
 189   void printPICJumpTableEntry(const MachineJumpTableInfo *MJTI,
 190                               const MachineBasicBlock *MBB,
 191                               unsigned uid) const;
 192
 193   void printPICLabel(const MachineInstr *MI, unsigned Op);
 194   void printModuleLevelGV(const GlobalVariable* GVar);
 195
 196   void PrintPICBaseSymbol() const;
 197
 198   bool runOnMachineFunction(MachineFunction &F);
 199
 200   void emitFunctionHeader(const MachineFunction &MF);
 201
 202   // Necessary for Darwin to print out the apprioriate types of linker stubs
 203   StringMap<std::string> FnStubs, GVStubs, HiddenGVStubs;
 204
 205   // Necessary for dllexport support
 206   StringSet<> CygMingStubs, DLLExportedFns, DLLExportedGVs;
 207
 208   // We have to propagate some information about MachineFunction to
 209   // AsmPrinter. It's ok, when we're printing the function, since we have
 210   // access to MachineFunction and can get the appropriate MachineFunctionInfo.
 211   // Unfortunately, this is not possible when we're printing reference to
 212   // Function (e.g. calling it and so on). Even more, there is no way to get the
 213   // corresponding MachineFunctions: it can even be not created at all. That's
 214   // why we should use additional structure, when we're collecting all necessary
 215   // information.
 216   //
 217   // This structure is using e.g. for name decoration for stdcall & fastcall'ed
 218   // function, since we have to use arguments' size for decoration.
 219   typedef std::map<const Function*, X86MachineFunctionInfo> FMFInfoMap;
 220   FMFInfoMap FunctionInfoMap;
 221
 222   void DecorateCygMingName(std::string &Name, const GlobalValue *GV);
 223 };
 224
 225 } // end namespace llvm
 226
 227 #endif