src/llvm/lib/Target/X86/AsmParser/X86AsmInstrumentation.h

   1 //===- X86AsmInstrumentation.h - Instrument X86 inline 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 #ifndef LLVM_LIB_TARGET_X86_ASMPARSER_X86ASMINSTRUMENTATION_H
  11 #define LLVM_LIB_TARGET_X86_ASMPARSER_X86ASMINSTRUMENTATION_H
  12
  13 #include "llvm/ADT/SmallVector.h"
  14
  15 #include <memory>
  16
  17 namespace llvm {
  18
  19 class MCContext;
  20 class MCInst;
  21 class MCInstrInfo;
  22 class MCParsedAsmOperand;
  23 class MCStreamer;
  24 class MCSubtargetInfo;
  25 class MCTargetOptions;
  26
  27 class X86AsmInstrumentation;
  28
  29 X86AsmInstrumentation *
  30 CreateX86AsmInstrumentation(const MCTargetOptions &MCOptions,
  31                             const MCContext &Ctx, const MCSubtargetInfo &STI);
  32
  33 class X86AsmInstrumentation {
  34 public:
  35   virtual ~X86AsmInstrumentation();
  36
  37   // Sets frame register corresponding to a current frame.
  38   void SetInitialFrameRegister(unsigned RegNo) {
  39     InitialFrameReg = RegNo;
  40   }
  41
  42   // Tries to instrument and emit instruction.
  43   virtual void InstrumentAndEmitInstruction(
  44       const MCInst &Inst,
  45       SmallVectorImpl<std::unique_ptr<MCParsedAsmOperand> > &Operands,
  46       MCContext &Ctx, const MCInstrInfo &MII, MCStreamer &Out);
  47
  48 protected:
  49   friend X86AsmInstrumentation *
  50   CreateX86AsmInstrumentation(const MCTargetOptions &MCOptions,
  51                               const MCContext &Ctx, const MCSubtargetInfo &STI);
  52
  53   X86AsmInstrumentation(const MCSubtargetInfo &STI);
  54
  55   unsigned GetFrameRegGeneric(const MCContext &Ctx, MCStreamer &Out);
  56
  57   void EmitInstruction(MCStreamer &Out, const MCInst &Inst);
  58
  59   const MCSubtargetInfo &STI;
  60
  61   unsigned InitialFrameReg;
  62 };
  63
  64 } // End llvm namespace
  65
  66 #endif