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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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269 | 269 |
270 unsigned stack_slot_size = compiled_code_->stack_slots() * kPointerSize; | 270 unsigned stack_slot_size = compiled_code_->stack_slots() * kPointerSize; |
271 unsigned outgoing_height = data->ArgumentsStackHeight(bailout_id)->value(); | 271 unsigned outgoing_height = data->ArgumentsStackHeight(bailout_id)->value(); |
272 unsigned outgoing_size = outgoing_height * kPointerSize; | 272 unsigned outgoing_size = outgoing_height * kPointerSize; |
273 unsigned output_frame_size = fixed_size + stack_slot_size + outgoing_size; | 273 unsigned output_frame_size = fixed_size + stack_slot_size + outgoing_size; |
274 ASSERT(outgoing_size == 0); // OSR does not happen in the middle of a call. | 274 ASSERT(outgoing_size == 0); // OSR does not happen in the middle of a call. |
275 | 275 |
276 if (FLAG_trace_osr) { | 276 if (FLAG_trace_osr) { |
277 PrintF("[on-stack replacement: begin 0x%08" V8PRIxPTR " ", | 277 PrintF("[on-stack replacement: begin 0x%08" V8PRIxPTR " ", |
278 reinterpret_cast<intptr_t>(function_)); | 278 reinterpret_cast<intptr_t>(function_)); |
279 function_->PrintName(); | 279 PrintFunctionName(); |
280 PrintF(" => node=%u, frame=%d->%d]\n", | 280 PrintF(" => node=%u, frame=%d->%d]\n", |
281 ast_id, | 281 ast_id, |
282 input_frame_size, | 282 input_frame_size, |
283 output_frame_size); | 283 output_frame_size); |
284 } | 284 } |
285 | 285 |
286 // There's only one output frame in the OSR case. | 286 // There's only one output frame in the OSR case. |
287 output_count_ = 1; | 287 output_count_ = 1; |
288 output_ = new FrameDescription*[1]; | 288 output_ = new FrameDescription*[1]; |
289 output_[0] = new(output_frame_size) FrameDescription( | 289 output_[0] = new(output_frame_size) FrameDescription( |
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363 output_[0]->SetPc(pc); | 363 output_[0]->SetPc(pc); |
364 } | 364 } |
365 Code* continuation = isolate_->builtins()->builtin(Builtins::kNotifyOSR); | 365 Code* continuation = isolate_->builtins()->builtin(Builtins::kNotifyOSR); |
366 output_[0]->SetContinuation( | 366 output_[0]->SetContinuation( |
367 reinterpret_cast<uint32_t>(continuation->entry())); | 367 reinterpret_cast<uint32_t>(continuation->entry())); |
368 | 368 |
369 if (FLAG_trace_osr) { | 369 if (FLAG_trace_osr) { |
370 PrintF("[on-stack replacement translation %s: 0x%08" V8PRIxPTR " ", | 370 PrintF("[on-stack replacement translation %s: 0x%08" V8PRIxPTR " ", |
371 ok ? "finished" : "aborted", | 371 ok ? "finished" : "aborted", |
372 reinterpret_cast<intptr_t>(function_)); | 372 reinterpret_cast<intptr_t>(function_)); |
373 function_->PrintName(); | 373 PrintFunctionName(); |
374 PrintF(" => pc=0x%0x]\n", output_[0]->GetPc()); | 374 PrintF(" => pc=0x%0x]\n", output_[0]->GetPc()); |
375 } | 375 } |
376 } | 376 } |
377 | 377 |
378 | 378 |
379 // This code is very similar to ia32 code, but relies on register names (fp, sp) | 379 // This code is very similar to ia32 code, but relies on register names (fp, sp) |
380 // and how the frame is laid out. | 380 // and how the frame is laid out. |
381 void Deoptimizer::DoComputeJSFrame(TranslationIterator* iterator, | 381 void Deoptimizer::DoComputeJSFrame(TranslationIterator* iterator, |
382 int frame_index) { | 382 int frame_index) { |
383 // Read the ast node id, function, and frame height for this output frame. | 383 // Read the ast node id, function, and frame height for this output frame. |
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828 __ push(ip); | 828 __ push(ip); |
829 __ b(&done); | 829 __ b(&done); |
830 ASSERT(masm()->pc_offset() - start == table_entry_size_); | 830 ASSERT(masm()->pc_offset() - start == table_entry_size_); |
831 } | 831 } |
832 __ bind(&done); | 832 __ bind(&done); |
833 } | 833 } |
834 | 834 |
835 #undef __ | 835 #undef __ |
836 | 836 |
837 } } // namespace v8::internal | 837 } } // namespace v8::internal |
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