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Issue 1737043002: [Interpreter] Log source positions for bytecode arrays. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@int_cpu_profiler
Patch Set: TickLinesBaseline now works with more source positions Created 4 years, 9 months ago
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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. 1 // Copyright (c) 1994-2006 Sun Microsystems Inc.
2 // All Rights Reserved. 2 // All Rights Reserved.
3 // 3 //
4 // Redistribution and use in source and binary forms, with or without 4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are 5 // modification, are permitted provided that the following conditions are
6 // met: 6 // met:
7 // 7 //
8 // - Redistributions of source code must retain the above copyright notice, 8 // - Redistributions of source code must retain the above copyright notice,
9 // this list of conditions and the following disclaimer. 9 // this list of conditions and the following disclaimer.
10 // 10 //
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954 // an instruction or relocation information. 954 // an instruction or relocation information.
955 inline bool buffer_overflow() const { 955 inline bool buffer_overflow() const {
956 return pc_ >= reloc_info_writer.pos() - kGap; 956 return pc_ >= reloc_info_writer.pos() - kGap;
957 } 957 }
958 958
959 // Get the number of bytes available in the buffer. 959 // Get the number of bytes available in the buffer.
960 inline int available_space() const { return reloc_info_writer.pos() - pc_; } 960 inline int available_space() const { return reloc_info_writer.pos() - pc_; }
961 961
962 static bool IsNop(Address addr); 962 static bool IsNop(Address addr);
963 963
964 PositionsRecorder* positions_recorder() { return &positions_recorder_; } 964 AssemblerPositionsRecorder* positions_recorder() {
965 return &positions_recorder_;
966 }
965 967
966 int relocation_writer_size() { 968 int relocation_writer_size() {
967 return (buffer_ + buffer_size_) - reloc_info_writer.pos(); 969 return (buffer_ + buffer_size_) - reloc_info_writer.pos();
968 } 970 }
969 971
970 // Avoid overflows for displacements etc. 972 // Avoid overflows for displacements etc.
971 static const int kMaximalBufferSize = 512*MB; 973 static const int kMaximalBufferSize = 512*MB;
972 974
973 byte byte_at(int pos) { return buffer_[pos]; } 975 byte byte_at(int pos) { return buffer_[pos]; }
974 void set_byte_at(int pos, byte value) { buffer_[pos] = value; } 976 void set_byte_at(int pos, byte value) { buffer_[pos] = value; }
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1041 friend class EnsureSpace; 1043 friend class EnsureSpace;
1042 1044
1043 // Internal reference positions, required for (potential) patching in 1045 // Internal reference positions, required for (potential) patching in
1044 // GrowBuffer(); contains only those internal references whose labels 1046 // GrowBuffer(); contains only those internal references whose labels
1045 // are already bound. 1047 // are already bound.
1046 std::deque<int> internal_reference_positions_; 1048 std::deque<int> internal_reference_positions_;
1047 1049
1048 // code generation 1050 // code generation
1049 RelocInfoWriter reloc_info_writer; 1051 RelocInfoWriter reloc_info_writer;
1050 1052
1051 PositionsRecorder positions_recorder_; 1053 AssemblerPositionsRecorder positions_recorder_;
1052 friend class PositionsRecorder; 1054 friend class AssemblerPositionsRecorder;
1053 }; 1055 };
1054 1056
1055 1057
1056 // Helper class that ensures that there is enough space for generating 1058 // Helper class that ensures that there is enough space for generating
1057 // instructions and relocation information. The constructor makes 1059 // instructions and relocation information. The constructor makes
1058 // sure that there is enough space and (in debug mode) the destructor 1060 // sure that there is enough space and (in debug mode) the destructor
1059 // checks that we did not generate too much. 1061 // checks that we did not generate too much.
1060 class EnsureSpace BASE_EMBEDDED { 1062 class EnsureSpace BASE_EMBEDDED {
1061 public: 1063 public:
1062 explicit EnsureSpace(Assembler* assembler) : assembler_(assembler) { 1064 explicit EnsureSpace(Assembler* assembler) : assembler_(assembler) {
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1077 Assembler* assembler_; 1079 Assembler* assembler_;
1078 #ifdef DEBUG 1080 #ifdef DEBUG
1079 int space_before_; 1081 int space_before_;
1080 #endif 1082 #endif
1081 }; 1083 };
1082 1084
1083 } // namespace internal 1085 } // namespace internal
1084 } // namespace v8 1086 } // namespace v8
1085 1087
1086 #endif // V8_X87_ASSEMBLER_X87_H_ 1088 #endif // V8_X87_ASSEMBLER_X87_H_
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