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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 |
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| 260 | 260 |
| 261 unsigned stack_slot_size = compiled_code_->stack_slots() * kPointerSize; | 261 unsigned stack_slot_size = compiled_code_->stack_slots() * kPointerSize; |
| 262 unsigned outgoing_height = data->ArgumentsStackHeight(bailout_id)->value(); | 262 unsigned outgoing_height = data->ArgumentsStackHeight(bailout_id)->value(); |
| 263 unsigned outgoing_size = outgoing_height * kPointerSize; | 263 unsigned outgoing_size = outgoing_height * kPointerSize; |
| 264 unsigned output_frame_size = fixed_size + stack_slot_size + outgoing_size; | 264 unsigned output_frame_size = fixed_size + stack_slot_size + outgoing_size; |
| 265 ASSERT(outgoing_size == 0); // OSR does not happen in the middle of a call. | 265 ASSERT(outgoing_size == 0); // OSR does not happen in the middle of a call. |
| 266 | 266 |
| 267 if (FLAG_trace_osr) { | 267 if (FLAG_trace_osr) { |
| 268 PrintF("[on-stack replacement: begin 0x%08" V8PRIxPTR " ", | 268 PrintF("[on-stack replacement: begin 0x%08" V8PRIxPTR " ", |
| 269 reinterpret_cast<intptr_t>(function_)); | 269 reinterpret_cast<intptr_t>(function_)); |
| 270 function_->PrintName(); | 270 PrintFunctionName(); |
| 271 PrintF(" => node=%u, frame=%d->%d]\n", | 271 PrintF(" => node=%u, frame=%d->%d]\n", |
| 272 ast_id, | 272 ast_id, |
| 273 input_frame_size, | 273 input_frame_size, |
| 274 output_frame_size); | 274 output_frame_size); |
| 275 } | 275 } |
| 276 | 276 |
| 277 // There's only one output frame in the OSR case. | 277 // There's only one output frame in the OSR case. |
| 278 output_count_ = 1; | 278 output_count_ = 1; |
| 279 output_ = new FrameDescription*[1]; | 279 output_ = new FrameDescription*[1]; |
| 280 output_[0] = new(output_frame_size) FrameDescription( | 280 output_[0] = new(output_frame_size) FrameDescription( |
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| 355 } | 355 } |
| 356 Code* continuation = | 356 Code* continuation = |
| 357 function_->GetIsolate()->builtins()->builtin(Builtins::kNotifyOSR); | 357 function_->GetIsolate()->builtins()->builtin(Builtins::kNotifyOSR); |
| 358 output_[0]->SetContinuation( | 358 output_[0]->SetContinuation( |
| 359 reinterpret_cast<intptr_t>(continuation->entry())); | 359 reinterpret_cast<intptr_t>(continuation->entry())); |
| 360 | 360 |
| 361 if (FLAG_trace_osr) { | 361 if (FLAG_trace_osr) { |
| 362 PrintF("[on-stack replacement translation %s: 0x%08" V8PRIxPTR " ", | 362 PrintF("[on-stack replacement translation %s: 0x%08" V8PRIxPTR " ", |
| 363 ok ? "finished" : "aborted", | 363 ok ? "finished" : "aborted", |
| 364 reinterpret_cast<intptr_t>(function_)); | 364 reinterpret_cast<intptr_t>(function_)); |
| 365 function_->PrintName(); | 365 PrintFunctionName(); |
| 366 PrintF(" => pc=0x%0" V8PRIxPTR "]\n", output_[0]->GetPc()); | 366 PrintF(" => pc=0x%0" V8PRIxPTR "]\n", output_[0]->GetPc()); |
| 367 } | 367 } |
| 368 } | 368 } |
| 369 | 369 |
| 370 | 370 |
| 371 void Deoptimizer::DoComputeJSFrame(TranslationIterator* iterator, | 371 void Deoptimizer::DoComputeJSFrame(TranslationIterator* iterator, |
| 372 int frame_index) { | 372 int frame_index) { |
| 373 BailoutId node_id = BailoutId(iterator->Next()); | 373 BailoutId node_id = BailoutId(iterator->Next()); |
| 374 JSFunction* function; | 374 JSFunction* function; |
| 375 if (frame_index != 0) { | 375 if (frame_index != 0) { |
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| 789 } | 789 } |
| 790 __ bind(&done); | 790 __ bind(&done); |
| 791 } | 791 } |
| 792 | 792 |
| 793 #undef __ | 793 #undef __ |
| 794 | 794 |
| 795 | 795 |
| 796 } } // namespace v8::internal | 796 } } // namespace v8::internal |
| 797 | 797 |
| 798 #endif // V8_TARGET_ARCH_X64 | 798 #endif // V8_TARGET_ARCH_X64 |
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