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      1 //===-- MipsAsmPrinter.h - Mips LLVM Assembly Printer ----------*- 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 // Mips Assembly printer class.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef MIPSASMPRINTER_H
     15 #define MIPSASMPRINTER_H
     16 
     17 #include "MipsMCInstLower.h"
     18 #include "MipsMachineFunction.h"
     19 #include "MipsSubtarget.h"
     20 #include "llvm/CodeGen/AsmPrinter.h"
     21 #include "llvm/Support/Compiler.h"
     22 #include "llvm/Target/TargetMachine.h"
     23 
     24 namespace llvm {
     25 class MCStreamer;
     26 class MachineInstr;
     27 class MachineBasicBlock;
     28 class Module;
     29 class raw_ostream;
     30 
     31 class LLVM_LIBRARY_VISIBILITY MipsAsmPrinter : public AsmPrinter {
     32 
     33   void EmitInstrWithMacroNoAT(const MachineInstr *MI);
     34 
     35 private:
     36   // tblgen'erated function.
     37   bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
     38                                    const MachineInstr *MI);
     39 
     40   // lowerOperand - Convert a MachineOperand into the equivalent MCOperand.
     41   bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp);
     42 
     43 public:
     44 
     45   const MipsSubtarget *Subtarget;
     46   const MipsFunctionInfo *MipsFI;
     47   MipsMCInstLower MCInstLowering;
     48 
     49   explicit MipsAsmPrinter(TargetMachine &TM,  MCStreamer &Streamer)
     50     : AsmPrinter(TM, Streamer), MCInstLowering(*this) {
     51     Subtarget = &TM.getSubtarget<MipsSubtarget>();
     52   }
     53 
     54   virtual const char *getPassName() const {
     55     return "Mips Assembly Printer";
     56   }
     57 
     58   virtual bool runOnMachineFunction(MachineFunction &MF);
     59 
     60   void EmitInstruction(const MachineInstr *MI);
     61   void printSavedRegsBitmask(raw_ostream &O);
     62   void printHex32(unsigned int Value, raw_ostream &O);
     63   void emitFrameDirective();
     64   const char *getCurrentABIString() const;
     65   virtual void EmitFunctionEntryLabel();
     66   virtual void EmitFunctionBodyStart();
     67   virtual void EmitFunctionBodyEnd();
     68   virtual bool isBlockOnlyReachableByFallthrough(const MachineBasicBlock*
     69                                                  MBB) const;
     70   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
     71                        unsigned AsmVariant, const char *ExtraCode,
     72                        raw_ostream &O);
     73   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
     74                              unsigned AsmVariant, const char *ExtraCode,
     75                              raw_ostream &O);
     76   void printOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
     77   void printUnsignedImm(const MachineInstr *MI, int opNum, raw_ostream &O);
     78   void printMemOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
     79   void printMemOperandEA(const MachineInstr *MI, int opNum, raw_ostream &O);
     80   void printFCCOperand(const MachineInstr *MI, int opNum, raw_ostream &O,
     81                        const char *Modifier = 0);
     82   void EmitStartOfAsmFile(Module &M);
     83   void EmitEndOfAsmFile(Module &M);
     84   void PrintDebugValueComment(const MachineInstr *MI, raw_ostream &OS);
     85 };
     86 }
     87 
     88 #endif
     89 
     90