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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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| 33 // Copyright 2011 the V8 project authors. All rights reserved. | 33 // Copyright 2011 the V8 project authors. All rights reserved. |
| 34 | 34 |
| 35 // A light-weight IA32 Assembler. | 35 // A light-weight IA32 Assembler. |
| 36 | 36 |
| 37 #ifndef V8_IA32_ASSEMBLER_IA32_H_ | 37 #ifndef V8_IA32_ASSEMBLER_IA32_H_ |
| 38 #define V8_IA32_ASSEMBLER_IA32_H_ | 38 #define V8_IA32_ASSEMBLER_IA32_H_ |
| 39 | 39 |
| 40 #include <deque> | 40 #include <deque> |
| 41 | 41 |
| 42 #include "src/assembler.h" | 42 #include "src/assembler.h" |
| 43 #include "src/compiler.h" |
| 43 #include "src/isolate.h" | 44 #include "src/isolate.h" |
| 44 #include "src/serialize.h" | 45 #include "src/serialize.h" |
| 45 | 46 |
| 46 namespace v8 { | 47 namespace v8 { |
| 47 namespace internal { | 48 namespace internal { |
| 48 | 49 |
| 49 // CPU Registers. | 50 // CPU Registers. |
| 50 // | 51 // |
| 51 // 1) We would prefer to use an enum, but enum values are assignment- | 52 // 1) We would prefer to use an enum, but enum values are assignment- |
| 52 // compatible with int, which has caused code-generation bugs. | 53 // compatible with int, which has caused code-generation bugs. |
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| 1259 | 1260 |
| 1260 // Mark address of a debug break slot. | 1261 // Mark address of a debug break slot. |
| 1261 void RecordDebugBreakSlot(); | 1262 void RecordDebugBreakSlot(); |
| 1262 | 1263 |
| 1263 // Record a comment relocation entry that can be used by a disassembler. | 1264 // Record a comment relocation entry that can be used by a disassembler. |
| 1264 // Use --code-comments to enable. | 1265 // Use --code-comments to enable. |
| 1265 void RecordComment(const char* msg); | 1266 void RecordComment(const char* msg); |
| 1266 | 1267 |
| 1267 // Record a deoptimization reason that can be used by a log or cpu profiler. | 1268 // Record a deoptimization reason that can be used by a log or cpu profiler. |
| 1268 // Use --trace-deopt to enable. | 1269 // Use --trace-deopt to enable. |
| 1269 void RecordDeoptReason(const int reason, const int raw_position); | 1270 void RecordDeoptReason(const int reason, const SourcePosition position); |
| 1270 | 1271 |
| 1271 // Writes a single byte or word of data in the code stream. Used for | 1272 // Writes a single byte or word of data in the code stream. Used for |
| 1272 // inline tables, e.g., jump-tables. | 1273 // inline tables, e.g., jump-tables. |
| 1273 void db(uint8_t data); | 1274 void db(uint8_t data); |
| 1274 void dd(uint32_t data); | 1275 void dd(uint32_t data); |
| 1275 void dd(Label* label); | 1276 void dd(Label* label); |
| 1276 | 1277 |
| 1277 // Check if there is less than kGap bytes available in the buffer. | 1278 // Check if there is less than kGap bytes available in the buffer. |
| 1278 // If this is the case, we need to grow the buffer before emitting | 1279 // If this is the case, we need to grow the buffer before emitting |
| 1279 // an instruction or relocation information. | 1280 // an instruction or relocation information. |
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| 1412 private: | 1413 private: |
| 1413 Assembler* assembler_; | 1414 Assembler* assembler_; |
| 1414 #ifdef DEBUG | 1415 #ifdef DEBUG |
| 1415 int space_before_; | 1416 int space_before_; |
| 1416 #endif | 1417 #endif |
| 1417 }; | 1418 }; |
| 1418 | 1419 |
| 1419 } } // namespace v8::internal | 1420 } } // namespace v8::internal |
| 1420 | 1421 |
| 1421 #endif // V8_IA32_ASSEMBLER_IA32_H_ | 1422 #endif // V8_IA32_ASSEMBLER_IA32_H_ |
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