lib/Target/X86/AsmPrinter/X86IntelAsmPrinter.h

   1 //===-- X86IntelAsmPrinter.h - Convert X86 LLVM code to Intel 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 // Intel assembly code printer class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef X86INTELASMPRINTER_H
  15 #define X86INTELASMPRINTER_H
  16
  17 #include "../X86.h"
  18 #include "../X86MachineFunctionInfo.h"
  19 #include "../X86TargetMachine.h"
  20 #include "llvm/CodeGen/AsmPrinter.h"
  21 #include "llvm/ADT/StringSet.h"
  22 #include "llvm/Support/Compiler.h"
  23 #include "llvm/Support/FormattedStream.h"
  24
  25 namespace llvm {
  26
  27 struct VISIBILITY_HIDDEN X86IntelAsmPrinter : public AsmPrinter {
  28   explicit X86IntelAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
  29                               const TargetAsmInfo *T, bool V)
  30     : AsmPrinter(O, TM, T, V) {}
  31
  32   virtual const char *getPassName() const {
  33     return "X86 Intel-Style Assembly Printer";
  34   }
  35
  36   /// printInstruction - This method is automatically generated by tablegen
  37   /// from the instruction set description.  This method returns true if the
  38   /// machine instruction was sufficiently described to print it, otherwise it
  39   /// returns false.
  40   bool printInstruction(const MachineInstr *MI);
  41
  42   // This method is used by the tablegen'erated instruction printer.
  43   void printOperand(const MachineInstr *MI, unsigned OpNo,
  44                     const char *Modifier = 0) {
  45     const MachineOperand &MO = MI->getOperand(OpNo);
  46     if (MO.isReg()) {
  47       assert(TargetRegisterInfo::isPhysicalRegister(MO.getReg()) &&
  48              "Not physreg??");
  49       O << TM.getRegisterInfo()->get(MO.getReg()).Name;  // Capitalized names
  50     } else {
  51       printOp(MO, Modifier);
  52     }
  53   }
  54
  55   void print_pcrel_imm(const MachineInstr *MI, unsigned OpNo);
  56
  57
  58   void printi8mem(const MachineInstr *MI, unsigned OpNo) {
  59     O << "BYTE PTR ";
  60     printMemReference(MI, OpNo);
  61   }
  62   void printi16mem(const MachineInstr *MI, unsigned OpNo) {
  63     O << "WORD PTR ";
  64     printMemReference(MI, OpNo);
  65   }
  66   void printi32mem(const MachineInstr *MI, unsigned OpNo) {
  67     O << "DWORD PTR ";
  68     printMemReference(MI, OpNo);
  69   }
  70   void printi64mem(const MachineInstr *MI, unsigned OpNo) {
  71     O << "QWORD PTR ";
  72     printMemReference(MI, OpNo);
  73   }
  74   void printi128mem(const MachineInstr *MI, unsigned OpNo) {
  75     O << "XMMWORD PTR ";
  76     printMemReference(MI, OpNo);
  77   }
  78   void printi256mem(const MachineInstr *MI, unsigned OpNo) {
  79     O << "YMMWORD PTR ";
  80     printMemReference(MI, OpNo);
  81   }
  82   void printf32mem(const MachineInstr *MI, unsigned OpNo) {
  83     O << "DWORD PTR ";
  84     printMemReference(MI, OpNo);
  85   }
  86   void printf64mem(const MachineInstr *MI, unsigned OpNo) {
  87     O << "QWORD PTR ";
  88     printMemReference(MI, OpNo);
  89   }
  90   void printf80mem(const MachineInstr *MI, unsigned OpNo) {
  91     O << "XWORD PTR ";
  92     printMemReference(MI, OpNo);
  93   }
  94   void printf128mem(const MachineInstr *MI, unsigned OpNo) {
  95     O << "XMMWORD PTR ";
  96     printMemReference(MI, OpNo);
  97   }
  98   void printf256mem(const MachineInstr *MI, unsigned OpNo) {
  99     O << "YMMWORD PTR ";
 100     printMemReference(MI, OpNo);
 101   }
 102   void printlea32mem(const MachineInstr *MI, unsigned OpNo) {
 103     O << "DWORD PTR ";
 104     printLeaMemReference(MI, OpNo);
 105   }
 106   void printlea64mem(const MachineInstr *MI, unsigned OpNo) {
 107     O << "QWORD PTR ";
 108     printLeaMemReference(MI, OpNo);
 109   }
 110   void printlea64_32mem(const MachineInstr *MI, unsigned OpNo) {
 111     O << "QWORD PTR ";
 112     printLeaMemReference(MI, OpNo, "subreg64");
 113   }
 114
 115   bool printAsmMRegister(const MachineOperand &MO, const char Mode);
 116   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
 117                        unsigned AsmVariant, const char *ExtraCode);
 118   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
 119                              unsigned AsmVariant, const char *ExtraCode);
 120   void printMachineInstruction(const MachineInstr *MI);
 121   void printOp(const MachineOperand &MO, const char *Modifier = 0);
 122   void printSSECC(const MachineInstr *MI, unsigned Op);
 123   void printMemReference(const MachineInstr *MI, unsigned Op,
 124                          const char *Modifier=NULL);
 125   void printLeaMemReference(const MachineInstr *MI, unsigned Op,
 126                             const char *Modifier=NULL);
 127   void printPICJumpTableSetLabel(unsigned uid,
 128                                  const MachineBasicBlock *MBB) const;
 129   void printPICJumpTableSetLabel(unsigned uid, unsigned uid2,
 130                                  const MachineBasicBlock *MBB) const {
 131     AsmPrinter::printPICJumpTableSetLabel(uid, uid2, MBB);
 132   }
 133   void printPICLabel(const MachineInstr *MI, unsigned Op);
 134   bool runOnMachineFunction(MachineFunction &F);
 135   bool doInitialization(Module &M);
 136   bool doFinalization(Module &M);
 137
 138   void PrintGlobalVariable(const GlobalVariable *GV);
 139
 140   // We have to propagate some information about MachineFunction to
 141   // AsmPrinter. It's ok, when we're printing the function, since we have
 142   // access to MachineFunction and can get the appropriate MachineFunctionInfo.
 143   // Unfortunately, this is not possible when we're printing reference to
 144   // Function (e.g. calling it and so on). Even more, there is no way to get the
 145   // corresponding MachineFunctions: it can even be not created at all. That's
 146   // why we should use additional structure, when we're collecting all necessary
 147   // information.
 148   //
 149   // This structure is using e.g. for name decoration for stdcall & fastcall'ed
 150   // function, since we have to use arguments' size for decoration.
 151   typedef std::map<const Function*, X86MachineFunctionInfo> FMFInfoMap;
 152   FMFInfoMap FunctionInfoMap;
 153
 154   void decorateName(std::string& Name, const GlobalValue* GV);
 155
 156   virtual void EmitString(const ConstantArray *CVA) const;
 157
 158   // Necessary for dllexport support
 159   StringSet<> DLLExportedFns, DLLExportedGVs;
 160 };
 161
 162 } // end namespace llvm
 163
 164 #endif