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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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318 if (info_->ShouldSelfOptimize() && !FLAG_retry_self_opt) { | 318 if (info_->ShouldSelfOptimize() && !FLAG_retry_self_opt) { |
319 // Self-optimization is a one-off thing: if it fails, don't try again. | 319 // Self-optimization is a one-off thing: if it fails, don't try again. |
320 reset_value = Smi::kMaxValue; | 320 reset_value = Smi::kMaxValue; |
321 } | 321 } |
322 __ mov(ebx, Immediate(profiling_counter_)); | 322 __ mov(ebx, Immediate(profiling_counter_)); |
323 __ mov(FieldOperand(ebx, JSGlobalPropertyCell::kValueOffset), | 323 __ mov(FieldOperand(ebx, JSGlobalPropertyCell::kValueOffset), |
324 Immediate(Smi::FromInt(reset_value))); | 324 Immediate(Smi::FromInt(reset_value))); |
325 } | 325 } |
326 | 326 |
327 | 327 |
328 const int FullCodeGenerator::kMaxBackEdgeWeight = 127; | |
329 const int FullCodeGenerator::kBackEdgeDistanceUnit = 100; | |
330 | |
331 | |
332 void FullCodeGenerator::EmitStackCheck(IterationStatement* stmt, | 328 void FullCodeGenerator::EmitStackCheck(IterationStatement* stmt, |
333 Label* back_edge_target) { | 329 Label* back_edge_target) { |
334 Comment cmnt(masm_, "[ Stack check"); | 330 Comment cmnt(masm_, "[ Stack check"); |
335 Label ok; | 331 Label ok; |
336 | 332 |
337 if (FLAG_count_based_interrupts) { | 333 if (FLAG_count_based_interrupts) { |
338 int weight = 1; | 334 int weight = 1; |
339 if (FLAG_weighted_back_edges) { | 335 if (FLAG_weighted_back_edges) { |
340 ASSERT(back_edge_target->is_bound()); | 336 ASSERT(back_edge_target->is_bound()); |
341 int distance = masm_->SizeOfCodeGeneratedSince(back_edge_target); | 337 int distance = masm_->SizeOfCodeGeneratedSince(back_edge_target); |
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4552 *stack_depth = 0; | 4548 *stack_depth = 0; |
4553 *context_length = 0; | 4549 *context_length = 0; |
4554 return previous_; | 4550 return previous_; |
4555 } | 4551 } |
4556 | 4552 |
4557 #undef __ | 4553 #undef __ |
4558 | 4554 |
4559 } } // namespace v8::internal | 4555 } } // namespace v8::internal |
4560 | 4556 |
4561 #endif // V8_TARGET_ARCH_IA32 | 4557 #endif // V8_TARGET_ARCH_IA32 |
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