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Side by Side Diff: src/ia32/assembler-ia32.h

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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1428 // an instruction or relocation information. 1428 // an instruction or relocation information.
1429 inline bool buffer_overflow() const { 1429 inline bool buffer_overflow() const {
1430 return pc_ >= reloc_info_writer.pos() - kGap; 1430 return pc_ >= reloc_info_writer.pos() - kGap;
1431 } 1431 }
1432 1432
1433 // Get the number of bytes available in the buffer. 1433 // Get the number of bytes available in the buffer.
1434 inline int available_space() const { return reloc_info_writer.pos() - pc_; } 1434 inline int available_space() const { return reloc_info_writer.pos() - pc_; }
1435 1435
1436 static bool IsNop(Address addr); 1436 static bool IsNop(Address addr);
1437 1437
1438 PositionsRecorder* positions_recorder() { return &positions_recorder_; } 1438 AssemblerPositionsRecorder* positions_recorder() {
1439 return &positions_recorder_;
1440 }
1439 1441
1440 int relocation_writer_size() { 1442 int relocation_writer_size() {
1441 return (buffer_ + buffer_size_) - reloc_info_writer.pos(); 1443 return (buffer_ + buffer_size_) - reloc_info_writer.pos();
1442 } 1444 }
1443 1445
1444 // Avoid overflows for displacements etc. 1446 // Avoid overflows for displacements etc.
1445 static const int kMaximalBufferSize = 512*MB; 1447 static const int kMaximalBufferSize = 512*MB;
1446 1448
1447 byte byte_at(int pos) { return buffer_[pos]; } 1449 byte byte_at(int pos) { return buffer_[pos]; }
1448 void set_byte_at(int pos, byte value) { buffer_[pos] = value; } 1450 void set_byte_at(int pos, byte value) { buffer_[pos] = value; }
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1535 friend class EnsureSpace; 1537 friend class EnsureSpace;
1536 1538
1537 // Internal reference positions, required for (potential) patching in 1539 // Internal reference positions, required for (potential) patching in
1538 // GrowBuffer(); contains only those internal references whose labels 1540 // GrowBuffer(); contains only those internal references whose labels
1539 // are already bound. 1541 // are already bound.
1540 std::deque<int> internal_reference_positions_; 1542 std::deque<int> internal_reference_positions_;
1541 1543
1542 // code generation 1544 // code generation
1543 RelocInfoWriter reloc_info_writer; 1545 RelocInfoWriter reloc_info_writer;
1544 1546
1545 PositionsRecorder positions_recorder_; 1547 AssemblerPositionsRecorder positions_recorder_;
1546 friend class PositionsRecorder; 1548 friend class AssemblerPositionsRecorder;
1547 }; 1549 };
1548 1550
1549 1551
1550 // Helper class that ensures that there is enough space for generating 1552 // Helper class that ensures that there is enough space for generating
1551 // instructions and relocation information. The constructor makes 1553 // instructions and relocation information. The constructor makes
1552 // sure that there is enough space and (in debug mode) the destructor 1554 // sure that there is enough space and (in debug mode) the destructor
1553 // checks that we did not generate too much. 1555 // checks that we did not generate too much.
1554 class EnsureSpace BASE_EMBEDDED { 1556 class EnsureSpace BASE_EMBEDDED {
1555 public: 1557 public:
1556 explicit EnsureSpace(Assembler* assembler) : assembler_(assembler) { 1558 explicit EnsureSpace(Assembler* assembler) : assembler_(assembler) {
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1571 Assembler* assembler_; 1573 Assembler* assembler_;
1572 #ifdef DEBUG 1574 #ifdef DEBUG
1573 int space_before_; 1575 int space_before_;
1574 #endif 1576 #endif
1575 }; 1577 };
1576 1578
1577 } // namespace internal 1579 } // namespace internal
1578 } // namespace v8 1580 } // namespace v8
1579 1581
1580 #endif // V8_IA32_ASSEMBLER_IA32_H_ 1582 #endif // V8_IA32_ASSEMBLER_IA32_H_
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