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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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1159 void BlockConstPoolFor(int instructions); | 1159 void BlockConstPoolFor(int instructions); |
1160 | 1160 |
1161 // Debugging | 1161 // Debugging |
1162 | 1162 |
1163 // Mark address of the ExitJSFrame code. | 1163 // Mark address of the ExitJSFrame code. |
1164 void RecordJSReturn(); | 1164 void RecordJSReturn(); |
1165 | 1165 |
1166 // Mark address of a debug break slot. | 1166 // Mark address of a debug break slot. |
1167 void RecordDebugBreakSlot(); | 1167 void RecordDebugBreakSlot(); |
1168 | 1168 |
1169 // Record the AST id of the CallIC being compiled, so that it can be placed | |
1170 // in the relocation information. | |
1171 void RecordAstId(unsigned ast_id) { ast_id_for_reloc_info_ = ast_id; } | |
1172 | |
1173 // Record a comment relocation entry that can be used by a disassembler. | 1169 // Record a comment relocation entry that can be used by a disassembler. |
1174 // Use --code-comments to enable. | 1170 // Use --code-comments to enable. |
1175 void RecordComment(const char* msg); | 1171 void RecordComment(const char* msg); |
1176 | 1172 |
1177 // Writes a single byte or word of data in the code stream. Used | 1173 // Writes a single byte or word of data in the code stream. Used |
1178 // for inline tables, e.g., jump-tables. The constant pool should be | 1174 // for inline tables, e.g., jump-tables. The constant pool should be |
1179 // emitted before any use of db and dd to ensure that constant pools | 1175 // emitted before any use of db and dd to ensure that constant pools |
1180 // are not emitted as part of the tables generated. | 1176 // are not emitted as part of the tables generated. |
1181 void db(uint8_t data); | 1177 void db(uint8_t data); |
1182 void dd(uint32_t data); | 1178 void dd(uint32_t data); |
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1220 static bool IsCmpRegister(Instr instr); | 1216 static bool IsCmpRegister(Instr instr); |
1221 static bool IsCmpImmediate(Instr instr); | 1217 static bool IsCmpImmediate(Instr instr); |
1222 static Register GetCmpImmediateRegister(Instr instr); | 1218 static Register GetCmpImmediateRegister(Instr instr); |
1223 static int GetCmpImmediateRawImmediate(Instr instr); | 1219 static int GetCmpImmediateRawImmediate(Instr instr); |
1224 static bool IsNop(Instr instr, int type = NON_MARKING_NOP); | 1220 static bool IsNop(Instr instr, int type = NON_MARKING_NOP); |
1225 | 1221 |
1226 // Check if is time to emit a constant pool for pending reloc info entries | 1222 // Check if is time to emit a constant pool for pending reloc info entries |
1227 void CheckConstPool(bool force_emit, bool require_jump); | 1223 void CheckConstPool(bool force_emit, bool require_jump); |
1228 | 1224 |
1229 protected: | 1225 protected: |
1230 // Relocation for a type-recording IC has the AST id added to it. This | |
1231 // member variable is a way to pass the information from the call site to | |
1232 // the relocation info. | |
1233 unsigned ast_id_for_reloc_info_; | |
1234 | |
1235 bool emit_debug_code() const { return emit_debug_code_; } | 1226 bool emit_debug_code() const { return emit_debug_code_; } |
1236 | 1227 |
1237 int buffer_space() const { return reloc_info_writer.pos() - pc_; } | 1228 int buffer_space() const { return reloc_info_writer.pos() - pc_; } |
1238 | 1229 |
1239 // Read/patch instructions | 1230 // Read/patch instructions |
1240 Instr instr_at(int pos) { return *reinterpret_cast<Instr*>(buffer_ + pos); } | 1231 Instr instr_at(int pos) { return *reinterpret_cast<Instr*>(buffer_ + pos); } |
1241 void instr_at_put(int pos, Instr instr) { | 1232 void instr_at_put(int pos, Instr instr) { |
1242 *reinterpret_cast<Instr*>(buffer_ + pos) = instr; | 1233 *reinterpret_cast<Instr*>(buffer_ + pos) = instr; |
1243 } | 1234 } |
1244 | 1235 |
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1372 public: | 1363 public: |
1373 explicit EnsureSpace(Assembler* assembler) { | 1364 explicit EnsureSpace(Assembler* assembler) { |
1374 assembler->CheckBuffer(); | 1365 assembler->CheckBuffer(); |
1375 } | 1366 } |
1376 }; | 1367 }; |
1377 | 1368 |
1378 | 1369 |
1379 } } // namespace v8::internal | 1370 } } // namespace v8::internal |
1380 | 1371 |
1381 #endif // V8_ARM_ASSEMBLER_ARM_H_ | 1372 #endif // V8_ARM_ASSEMBLER_ARM_H_ |
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