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f21c18db9f
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189815 91177308-0d34-0410-b5e6-96231b3b80d8
108 lines
3.5 KiB
C++
108 lines
3.5 KiB
C++
//===-- MCInstPrinter.h - Convert an MCInst to target assembly syntax -----===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_MC_MCINSTPRINTER_H
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#define LLVM_MC_MCINSTPRINTER_H
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#include "llvm/Support/DataTypes.h"
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#include "llvm/Support/Format.h"
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namespace llvm {
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class MCInst;
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class raw_ostream;
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class MCAsmInfo;
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class MCInstrInfo;
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class MCRegisterInfo;
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class StringRef;
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namespace HexStyle {
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enum Style {
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C, ///< 0xff
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Asm ///< 0ffh
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};
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}
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/// MCInstPrinter - This is an instance of a target assembly language printer
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/// that converts an MCInst to valid target assembly syntax.
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class MCInstPrinter {
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protected:
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/// CommentStream - a stream that comments can be emitted to if desired.
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/// Each comment must end with a newline. This will be null if verbose
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/// assembly emission is disable.
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raw_ostream *CommentStream;
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const MCAsmInfo &MAI;
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const MCInstrInfo &MII;
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const MCRegisterInfo &MRI;
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/// The current set of available features.
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uint64_t AvailableFeatures;
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/// True if we are printing marked up assembly.
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bool UseMarkup;
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/// True if we are printing immediates as hex.
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bool PrintImmHex;
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/// Which style to use for printing hexadecimal values.
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HexStyle::Style PrintHexStyle;
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/// Utility function for printing annotations.
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void printAnnotation(raw_ostream &OS, StringRef Annot);
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public:
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MCInstPrinter(const MCAsmInfo &mai, const MCInstrInfo &mii,
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const MCRegisterInfo &mri)
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: CommentStream(0), MAI(mai), MII(mii), MRI(mri), AvailableFeatures(0),
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UseMarkup(0), PrintImmHex(0), PrintHexStyle(HexStyle::C) {}
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virtual ~MCInstPrinter();
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/// setCommentStream - Specify a stream to emit comments to.
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void setCommentStream(raw_ostream &OS) { CommentStream = &OS; }
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/// printInst - Print the specified MCInst to the specified raw_ostream.
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///
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virtual void printInst(const MCInst *MI, raw_ostream &OS,
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StringRef Annot) = 0;
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/// getOpcodeName - Return the name of the specified opcode enum (e.g.
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/// "MOV32ri") or empty if we can't resolve it.
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StringRef getOpcodeName(unsigned Opcode) const;
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/// printRegName - Print the assembler register name.
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virtual void printRegName(raw_ostream &OS, unsigned RegNo) const;
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uint64_t getAvailableFeatures() const { return AvailableFeatures; }
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void setAvailableFeatures(uint64_t Value) { AvailableFeatures = Value; }
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bool getUseMarkup() const { return UseMarkup; }
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void setUseMarkup(bool Value) { UseMarkup = Value; }
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/// Utility functions to make adding mark ups simpler.
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StringRef markup(StringRef s) const;
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StringRef markup(StringRef a, StringRef b) const;
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bool getPrintImmHex() const { return PrintImmHex; }
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void setPrintImmHex(bool Value) { PrintImmHex = Value; }
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HexStyle::Style getPrintHexStyleHex() const { return PrintHexStyle; }
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void setPrintImmHex(HexStyle::Style Value) { PrintHexStyle = Value; }
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/// Utility function to print immediates in decimal or hex.
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format_object1<int64_t> formatImm(const int64_t Value) const { return PrintImmHex ? formatHex(Value) : formatDec(Value); }
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/// Utility functions to print decimal/hexadecimal values.
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format_object1<int64_t> formatDec(const int64_t Value) const;
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format_object1<int64_t> formatHex(const int64_t Value) const;
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format_object1<uint64_t> formatHex(const uint64_t Value) const;
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};
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} // namespace llvm
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#endif
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