Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(349)

Side by Side Diff: src/IceFixups.h

Issue 1417173003: Fix ARM integrated assembler to be able to compile spec2k examples. (Closed) Base URL: https://chromium.googlesource.com/native_client/pnacl-subzero.git@master
Patch Set: Created 5 years, 1 month ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
OLDNEW
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
11 /// This file declares generic fixup types. 11 /// This file declares generic fixup types.
12 /// 12 ///
13 //===----------------------------------------------------------------------===// 13 //===----------------------------------------------------------------------===//
14 14
15 #ifndef SUBZERO_SRC_ICEFIXUPS_H 15 #ifndef SUBZERO_SRC_ICEFIXUPS_H
16 #define SUBZERO_SRC_ICEFIXUPS_H 16 #define SUBZERO_SRC_ICEFIXUPS_H
17 17
18 #include "IceDefs.h" 18 #include "IceDefs.h"
19 19
20 namespace Ice { 20 namespace Ice {
21 21
22 class Assembler;
Jim Stichnoth 2015/10/27 21:41:21 Is this forward declaration needed? It's already
Karl 2015/10/27 22:16:41 Done.
23
22 /// Each target and container format has a different namespace of relocations. 24 /// Each target and container format has a different namespace of relocations.
23 /// This holds the specific target+container format's relocation number. 25 /// This holds the specific target+container format's relocation number.
24 using FixupKind = uint32_t; 26 using FixupKind = uint32_t;
25 27
26 /// Assembler fixups are positions in generated code/data that hold relocation 28 /// Assembler fixups are positions in generated code/data that hold relocation
27 /// information that needs to be processed before finalizing the code/data. 29 /// information that needs to be processed before finalizing the code/data.
28 struct AssemblerFixup { 30 struct AssemblerFixup {
29 AssemblerFixup &operator=(const AssemblerFixup &) = delete; 31 AssemblerFixup &operator=(const AssemblerFixup &) = delete;
30 32
31 public: 33 public:
32 AssemblerFixup() = default; 34 AssemblerFixup() = default;
33 AssemblerFixup(const AssemblerFixup &) = default; 35 AssemblerFixup(const AssemblerFixup &) = default;
34 intptr_t position() const { return position_; } 36 intptr_t position() const { return position_; }
35 void set_position(intptr_t Position) { position_ = Position; } 37 void set_position(intptr_t Position) { position_ = Position; }
36 38
37 FixupKind kind() const { return kind_; } 39 FixupKind kind() const { return kind_; }
38 void set_kind(FixupKind Kind) { kind_ = Kind; } 40 void set_kind(FixupKind Kind) { kind_ = Kind; }
39 41
40 RelocOffsetT offset() const; 42 RelocOffsetT offset() const;
41 IceString symbol(const GlobalContext *Ctx) const; 43 IceString symbol(const GlobalContext *Ctx) const;
42 44
43 static const Constant *NullSymbol; 45 static const Constant *NullSymbol;
44 bool isNullSymbol() const { return value_ == NullSymbol; } 46 bool isNullSymbol() const { return value_ == NullSymbol; }
45 47
46 void set_value(const Constant *Value) { value_ = Value; } 48 void set_value(const Constant *Value) { value_ = Value; }
47 49
48 /// Emits fixup, then returns the number of bytes to skip. 50 /// Emits fixup, then returns the number of bytes to skip.
49 virtual size_t emit(GlobalContext *Ctx, RelocOffsetT OverrideOffset, 51 virtual size_t emit(GlobalContext *Ctx, const Assembler &Asm) const;
50 bool IsPCRel) const;
51 52
52 private: 53 private:
53 intptr_t position_ = 0; 54 intptr_t position_ = 0;
54 FixupKind kind_ = 0; 55 FixupKind kind_ = 0;
55 const Constant *value_ = nullptr; 56 const Constant *value_ = nullptr;
56 }; 57 };
57 58
58 /// Extends a fixup to be textual. That is, it emits text instead of a sequence 59 /// 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 60 /// of bytes. This class is used as a fallback for unimplemented emitIAS
60 /// methods, allowing them to generate compilable assembly code. 61 /// methods, allowing them to generate compilable assembly code.
61 class AssemblerTextFixup : public AssemblerFixup { 62 class AssemblerTextFixup : public AssemblerFixup {
62 AssemblerTextFixup() = delete; 63 AssemblerTextFixup() = delete;
63 AssemblerTextFixup(const AssemblerTextFixup &) = delete; 64 AssemblerTextFixup(const AssemblerTextFixup &) = delete;
64 AssemblerTextFixup &operator=(const AssemblerTextFixup &) = delete; 65 AssemblerTextFixup &operator=(const AssemblerTextFixup &) = delete;
65 66
66 public: 67 public:
67 AssemblerTextFixup(const std::string &Message, size_t NumBytes) 68 AssemblerTextFixup(const std::string &Message, size_t NumBytes)
68 : AssemblerFixup(), Message(Message), NumBytes(NumBytes) {} 69 : AssemblerFixup(), Message(Message), NumBytes(NumBytes) {}
69 ~AssemblerTextFixup() = default; 70 ~AssemblerTextFixup() = default;
70 virtual size_t emit(GlobalContext *Ctx, RelocOffsetT OverrideOffset, 71 size_t emit(GlobalContext *Ctx, const Assembler &Asm) const override;
71 bool isPcRel) const;
72 72
73 private: 73 private:
74 const std::string Message; 74 const std::string Message;
75 const size_t NumBytes; 75 const size_t NumBytes;
76 }; 76 };
77 77
78 using FixupList = std::vector<AssemblerFixup>; 78 using FixupList = std::vector<AssemblerFixup>;
79 using FixupRefList = std::vector<AssemblerFixup *>; 79 using FixupRefList = std::vector<AssemblerFixup *>;
80 80
81 } // end of namespace Ice 81 } // end of namespace Ice
82 82
83 #endif // SUBZERO_SRC_ICEFIXUPS_H 83 #endif // SUBZERO_SRC_ICEFIXUPS_H
OLDNEW
« src/IceAssembler.h ('K') | « src/IceAssembler.cpp ('k') | src/IceFixups.cpp » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698