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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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331 if (isolate()->IsDebuggerActive()) { | 331 if (isolate()->IsDebuggerActive()) { |
332 // Detect debug break requests as soon as possible. | 332 // Detect debug break requests as soon as possible. |
333 reset_value = FLAG_interrupt_budget >> 4; | 333 reset_value = FLAG_interrupt_budget >> 4; |
334 } | 334 } |
335 __ mov(r2, Operand(profiling_counter_)); | 335 __ mov(r2, Operand(profiling_counter_)); |
336 __ mov(r3, Operand(Smi::FromInt(reset_value))); | 336 __ mov(r3, Operand(Smi::FromInt(reset_value))); |
337 __ str(r3, FieldMemOperand(r2, JSGlobalPropertyCell::kValueOffset)); | 337 __ str(r3, FieldMemOperand(r2, JSGlobalPropertyCell::kValueOffset)); |
338 } | 338 } |
339 | 339 |
340 | 340 |
341 const int FullCodeGenerator::kMaxBackEdgeWeight = 127; | |
342 const int FullCodeGenerator::kBackEdgeDistanceUnit = 142; | |
343 | |
344 | |
345 void FullCodeGenerator::EmitStackCheck(IterationStatement* stmt, | 341 void FullCodeGenerator::EmitStackCheck(IterationStatement* stmt, |
346 Label* back_edge_target) { | 342 Label* back_edge_target) { |
347 Comment cmnt(masm_, "[ Stack check"); | 343 Comment cmnt(masm_, "[ Stack check"); |
348 // Block literal pools whilst emitting stack check code. | 344 // Block literal pools whilst emitting stack check code. |
349 Assembler::BlockConstPoolScope block_const_pool(masm_); | 345 Assembler::BlockConstPoolScope block_const_pool(masm_); |
350 Label ok; | 346 Label ok; |
351 | 347 |
352 if (FLAG_count_based_interrupts) { | 348 if (FLAG_count_based_interrupts) { |
353 int weight = 1; | 349 int weight = 1; |
354 if (FLAG_weighted_back_edges) { | 350 if (FLAG_weighted_back_edges) { |
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4581 *context_length = 0; | 4577 *context_length = 0; |
4582 return previous_; | 4578 return previous_; |
4583 } | 4579 } |
4584 | 4580 |
4585 | 4581 |
4586 #undef __ | 4582 #undef __ |
4587 | 4583 |
4588 } } // namespace v8::internal | 4584 } } // namespace v8::internal |
4589 | 4585 |
4590 #endif // V8_TARGET_ARCH_ARM | 4586 #endif // V8_TARGET_ARCH_ARM |
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