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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 | 5 // modification, are permitted provided that the following conditions |
6 // are met: | 6 // are 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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1160 void BlockConstPoolFor(int instructions); | 1160 void BlockConstPoolFor(int instructions); |
1161 | 1161 |
1162 // Debugging | 1162 // Debugging |
1163 | 1163 |
1164 // Mark address of the ExitJSFrame code. | 1164 // Mark address of the ExitJSFrame code. |
1165 void RecordJSReturn(); | 1165 void RecordJSReturn(); |
1166 | 1166 |
1167 // Mark address of a debug break slot. | 1167 // Mark address of a debug break slot. |
1168 void RecordDebugBreakSlot(); | 1168 void RecordDebugBreakSlot(); |
1169 | 1169 |
| 1170 // Record the AST id of the CallIC being compiled, so that it can be placed |
| 1171 // in the relocation information. |
| 1172 void RecordAstId(unsigned ast_id) { ast_id_for_reloc_info_ = ast_id; } |
| 1173 |
1170 // Record a comment relocation entry that can be used by a disassembler. | 1174 // Record a comment relocation entry that can be used by a disassembler. |
1171 // Use --code-comments to enable. | 1175 // Use --code-comments to enable. |
1172 void RecordComment(const char* msg); | 1176 void RecordComment(const char* msg); |
1173 | 1177 |
1174 // Writes a single byte or word of data in the code stream. Used | 1178 // Writes a single byte or word of data in the code stream. Used |
1175 // for inline tables, e.g., jump-tables. The constant pool should be | 1179 // for inline tables, e.g., jump-tables. The constant pool should be |
1176 // emitted before any use of db and dd to ensure that constant pools | 1180 // emitted before any use of db and dd to ensure that constant pools |
1177 // are not emitted as part of the tables generated. | 1181 // are not emitted as part of the tables generated. |
1178 void db(uint8_t data); | 1182 void db(uint8_t data); |
1179 void dd(uint32_t data); | 1183 void dd(uint32_t data); |
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1217 static bool IsCmpRegister(Instr instr); | 1221 static bool IsCmpRegister(Instr instr); |
1218 static bool IsCmpImmediate(Instr instr); | 1222 static bool IsCmpImmediate(Instr instr); |
1219 static Register GetCmpImmediateRegister(Instr instr); | 1223 static Register GetCmpImmediateRegister(Instr instr); |
1220 static int GetCmpImmediateRawImmediate(Instr instr); | 1224 static int GetCmpImmediateRawImmediate(Instr instr); |
1221 static bool IsNop(Instr instr, int type = NON_MARKING_NOP); | 1225 static bool IsNop(Instr instr, int type = NON_MARKING_NOP); |
1222 | 1226 |
1223 // Check if is time to emit a constant pool for pending reloc info entries | 1227 // Check if is time to emit a constant pool for pending reloc info entries |
1224 void CheckConstPool(bool force_emit, bool require_jump); | 1228 void CheckConstPool(bool force_emit, bool require_jump); |
1225 | 1229 |
1226 protected: | 1230 protected: |
| 1231 // Relocation for a type-recording IC has the AST id added to it. This |
| 1232 // member variable is a way to pass the information from the call site to |
| 1233 // the relocation info. |
| 1234 unsigned ast_id_for_reloc_info_; |
| 1235 |
1227 bool emit_debug_code() const { return emit_debug_code_; } | 1236 bool emit_debug_code() const { return emit_debug_code_; } |
1228 | 1237 |
1229 int buffer_space() const { return reloc_info_writer.pos() - pc_; } | 1238 int buffer_space() const { return reloc_info_writer.pos() - pc_; } |
1230 | 1239 |
1231 // Read/patch instructions | 1240 // Read/patch instructions |
1232 Instr instr_at(int pos) { return *reinterpret_cast<Instr*>(buffer_ + pos); } | 1241 Instr instr_at(int pos) { return *reinterpret_cast<Instr*>(buffer_ + pos); } |
1233 void instr_at_put(int pos, Instr instr) { | 1242 void instr_at_put(int pos, Instr instr) { |
1234 *reinterpret_cast<Instr*>(buffer_ + pos) = instr; | 1243 *reinterpret_cast<Instr*>(buffer_ + pos) = instr; |
1235 } | 1244 } |
1236 | 1245 |
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1364 public: | 1373 public: |
1365 explicit EnsureSpace(Assembler* assembler) { | 1374 explicit EnsureSpace(Assembler* assembler) { |
1366 assembler->CheckBuffer(); | 1375 assembler->CheckBuffer(); |
1367 } | 1376 } |
1368 }; | 1377 }; |
1369 | 1378 |
1370 | 1379 |
1371 } } // namespace v8::internal | 1380 } } // namespace v8::internal |
1372 | 1381 |
1373 #endif // V8_ARM_ASSEMBLER_ARM_H_ | 1382 #endif // V8_ARM_ASSEMBLER_ARM_H_ |
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