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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
11 // with the distribution. | 11 // with the distribution. |
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208 SafepointTableBuilder() | 208 SafepointTableBuilder() |
209 : deoptimization_info_(32), | 209 : deoptimization_info_(32), |
210 indexes_(32), | 210 indexes_(32), |
211 registers_(32), | 211 registers_(32), |
212 emitted_(false) { } | 212 emitted_(false) { } |
213 | 213 |
214 // Get the offset of the emitted safepoint table in the code. | 214 // Get the offset of the emitted safepoint table in the code. |
215 unsigned GetCodeOffset() const; | 215 unsigned GetCodeOffset() const; |
216 | 216 |
217 // Define a new safepoint for the current position in the body. | 217 // Define a new safepoint for the current position in the body. |
218 Safepoint DefineSafepoint( | 218 Safepoint DefineSafepoint(Assembler* assembler, |
219 Assembler* assembler, | 219 Safepoint::Kind kind, |
220 Safepoint::Kind kind, | 220 int arguments, |
221 int arguments, | 221 int deoptimization_index); |
222 int deoptimization_index = Safepoint::kNoDeoptimizationIndex); | |
223 | 222 |
224 // Update the last safepoint with the size of the code generated for the gap | 223 // Update the last safepoint with the size of the code generated for the gap |
225 // following it. | 224 // following it. |
226 void SetPcAfterGap(int pc) { | 225 void SetPcAfterGap(int pc) { |
227 ASSERT(!deoptimization_info_.is_empty()); | 226 ASSERT(!deoptimization_info_.is_empty()); |
228 int index = deoptimization_info_.length() - 1; | 227 int index = deoptimization_info_.length() - 1; |
229 deoptimization_info_[index].pc_after_gap = pc; | 228 deoptimization_info_[index].pc_after_gap = pc; |
230 } | 229 } |
231 | 230 |
232 // Emit the safepoint table after the body. The number of bits per | 231 // Emit the safepoint table after the body. The number of bits per |
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250 | 249 |
251 bool emitted_; | 250 bool emitted_; |
252 unsigned offset_; | 251 unsigned offset_; |
253 | 252 |
254 DISALLOW_COPY_AND_ASSIGN(SafepointTableBuilder); | 253 DISALLOW_COPY_AND_ASSIGN(SafepointTableBuilder); |
255 }; | 254 }; |
256 | 255 |
257 } } // namespace v8::internal | 256 } } // namespace v8::internal |
258 | 257 |
259 #endif // V8_SAFEPOINT_TABLE_H_ | 258 #endif // V8_SAFEPOINT_TABLE_H_ |
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