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| 1 //===- subzero/src/IceFixups.h - Assembler fixup kinds ----------*- C++ -*-===// | 1 //===- subzero/src/IceFixups.h - Assembler fixup kinds ----------*- C++ -*-===// |
| 2 // | 2 // |
| 3 // The Subzero Code Generator | 3 // The Subzero Code Generator |
| 4 // | 4 // |
| 5 // This file is distributed under the University of Illinois Open Source | 5 // This file is distributed under the University of Illinois Open Source |
| 6 // License. See LICENSE.TXT for details. | 6 // License. See LICENSE.TXT for details. |
| 7 // | 7 // |
| 8 //===----------------------------------------------------------------------===// | 8 //===----------------------------------------------------------------------===// |
| 9 /// | 9 /// |
| 10 /// \file | 10 /// \file |
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| 39 | 39 |
| 40 RelocOffsetT offset() const; | 40 RelocOffsetT offset() const; |
| 41 IceString symbol(const GlobalContext *Ctx) const; | 41 IceString symbol(const GlobalContext *Ctx) const; |
| 42 | 42 |
| 43 static const Constant *NullSymbol; | 43 static const Constant *NullSymbol; |
| 44 bool isNullSymbol() const { return value_ == NullSymbol; } | 44 bool isNullSymbol() const { return value_ == NullSymbol; } |
| 45 | 45 |
| 46 void set_value(const Constant *Value) { value_ = Value; } | 46 void set_value(const Constant *Value) { value_ = Value; } |
| 47 | 47 |
| 48 /// Emits fixup, then returns the number of bytes to skip. | 48 /// Emits fixup, then returns the number of bytes to skip. |
| 49 virtual size_t emit(GlobalContext *Ctx, RelocOffsetT OverrideOffset, | 49 virtual size_t emit(GlobalContext *Ctx, const Assembler &Asm) const; |
| 50 bool IsPCRel) const; | |
| 51 | 50 |
| 52 private: | 51 private: |
| 53 intptr_t position_ = 0; | 52 intptr_t position_ = 0; |
| 54 FixupKind kind_ = 0; | 53 FixupKind kind_ = 0; |
| 55 const Constant *value_ = nullptr; | 54 const Constant *value_ = nullptr; |
| 56 }; | 55 }; |
| 57 | 56 |
| 58 /// Extends a fixup to be textual. That is, it emits text instead of a sequence | 57 /// Extends a fixup to be textual. That is, it emits text instead of a sequence |
| 59 /// of bytes. This class is used as a fallback for unimplemented emitIAS | 58 /// of bytes. This class is used as a fallback for unimplemented emitIAS |
| 60 /// methods, allowing them to generate compilable assembly code. | 59 /// methods, allowing them to generate compilable assembly code. |
| 61 class AssemblerTextFixup : public AssemblerFixup { | 60 class AssemblerTextFixup : public AssemblerFixup { |
| 62 AssemblerTextFixup() = delete; | 61 AssemblerTextFixup() = delete; |
| 63 AssemblerTextFixup(const AssemblerTextFixup &) = delete; | 62 AssemblerTextFixup(const AssemblerTextFixup &) = delete; |
| 64 AssemblerTextFixup &operator=(const AssemblerTextFixup &) = delete; | 63 AssemblerTextFixup &operator=(const AssemblerTextFixup &) = delete; |
| 65 | 64 |
| 66 public: | 65 public: |
| 67 AssemblerTextFixup(const std::string &Message, size_t NumBytes) | 66 AssemblerTextFixup(const std::string &Message, size_t NumBytes) |
| 68 : AssemblerFixup(), Message(Message), NumBytes(NumBytes) {} | 67 : AssemblerFixup(), Message(Message), NumBytes(NumBytes) {} |
| 69 ~AssemblerTextFixup() = default; | 68 ~AssemblerTextFixup() = default; |
| 70 virtual size_t emit(GlobalContext *Ctx, RelocOffsetT OverrideOffset, | 69 size_t emit(GlobalContext *Ctx, const Assembler &Asm) const override; |
| 71 bool isPcRel) const; | |
| 72 | 70 |
| 73 private: | 71 private: |
| 74 const std::string Message; | 72 const std::string Message; |
| 75 const size_t NumBytes; | 73 const size_t NumBytes; |
| 76 }; | 74 }; |
| 77 | 75 |
| 78 using FixupList = std::vector<AssemblerFixup>; | 76 using FixupList = std::vector<AssemblerFixup>; |
| 79 using FixupRefList = std::vector<AssemblerFixup *>; | 77 using FixupRefList = std::vector<AssemblerFixup *>; |
| 80 | 78 |
| 81 } // end of namespace Ice | 79 } // end of namespace Ice |
| 82 | 80 |
| 83 #endif // SUBZERO_SRC_ICEFIXUPS_H | 81 #endif // SUBZERO_SRC_ICEFIXUPS_H |
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