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      1 //===-- X86AsmPrinter.h - Convert X86 LLVM code to assembly -----*- 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 // AT&T assembly code printer class.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef X86ASMPRINTER_H
     15 #define X86ASMPRINTER_H
     16 
     17 #include "X86.h"
     18 #include "X86MachineFunctionInfo.h"
     19 #include "X86TargetMachine.h"
     20 #include "llvm/CodeGen/AsmPrinter.h"
     21 #include "llvm/CodeGen/MachineModuleInfo.h"
     22 #include "llvm/CodeGen/ValueTypes.h"
     23 #include "llvm/Support/Compiler.h"
     24 
     25 namespace llvm {
     26 
     27 class MCStreamer;
     28 
     29 class LLVM_LIBRARY_VISIBILITY X86AsmPrinter : public AsmPrinter {
     30   const X86Subtarget *Subtarget;
     31  public:
     32   explicit X86AsmPrinter(TargetMachine &TM, MCStreamer &Streamer)
     33     : AsmPrinter(TM, Streamer) {
     34     Subtarget = &TM.getSubtarget<X86Subtarget>();
     35   }
     36 
     37   virtual const char *getPassName() const {
     38     return "X86 AT&T-Style Assembly Printer";
     39   }
     40 
     41   const X86Subtarget &getSubtarget() const { return *Subtarget; }
     42 
     43   virtual void EmitStartOfAsmFile(Module &M);
     44 
     45   virtual void EmitEndOfAsmFile(Module &M);
     46 
     47   virtual void EmitInstruction(const MachineInstr *MI);
     48 
     49   void printSymbolOperand(const MachineOperand &MO, raw_ostream &O);
     50 
     51   // These methods are used by the tablegen'erated instruction printer.
     52   void printOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O,
     53                     const char *Modifier = 0, unsigned AsmVariant = 0);
     54   void print_pcrel_imm(const MachineInstr *MI, unsigned OpNo, raw_ostream &O);
     55 
     56   bool printAsmMRegister(const MachineOperand &MO, char Mode, raw_ostream &O);
     57   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
     58                        unsigned AsmVariant, const char *ExtraCode,
     59                        raw_ostream &OS);
     60   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
     61                              unsigned AsmVariant, const char *ExtraCode,
     62                              raw_ostream &OS);
     63 
     64   void printMachineInstruction(const MachineInstr *MI);
     65   void printSSECC(const MachineInstr *MI, unsigned Op, raw_ostream &O);
     66   void printMemReference(const MachineInstr *MI, unsigned Op, raw_ostream &O,
     67                          const char *Modifier=NULL);
     68   void printLeaMemReference(const MachineInstr *MI, unsigned Op, raw_ostream &O,
     69                             const char *Modifier=NULL);
     70 
     71   void printPICLabel(const MachineInstr *MI, unsigned Op, raw_ostream &O);
     72 
     73   bool runOnMachineFunction(MachineFunction &F);
     74 
     75   void PrintDebugValueComment(const MachineInstr *MI, raw_ostream &OS);
     76 
     77   MachineLocation getDebugValueLocation(const MachineInstr *MI) const;
     78 };
     79 
     80 } // end namespace llvm
     81 
     82 #endif
     83