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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_IA32 | 7 #if V8_TARGET_ARCH_IA32 |
8 | 8 |
9 #include "src/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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3121 | 3121 |
3122 | 3122 |
3123 void MacroAssembler::CheckPageFlagForMap( | 3123 void MacroAssembler::CheckPageFlagForMap( |
3124 Handle<Map> map, | 3124 Handle<Map> map, |
3125 int mask, | 3125 int mask, |
3126 Condition cc, | 3126 Condition cc, |
3127 Label* condition_met, | 3127 Label* condition_met, |
3128 Label::Distance condition_met_distance) { | 3128 Label::Distance condition_met_distance) { |
3129 DCHECK(cc == zero || cc == not_zero); | 3129 DCHECK(cc == zero || cc == not_zero); |
3130 Page* page = Page::FromAddress(map->address()); | 3130 Page* page = Page::FromAddress(map->address()); |
| 3131 DCHECK(!serializer_enabled()); // Serializer cannot match page_flags. |
3131 ExternalReference reference(ExternalReference::page_flags(page)); | 3132 ExternalReference reference(ExternalReference::page_flags(page)); |
3132 // The inlined static address check of the page's flags relies | 3133 // The inlined static address check of the page's flags relies |
3133 // on maps never being compacted. | 3134 // on maps never being compacted. |
3134 DCHECK(!isolate()->heap()->mark_compact_collector()-> | 3135 DCHECK(!isolate()->heap()->mark_compact_collector()-> |
3135 IsOnEvacuationCandidate(*map)); | 3136 IsOnEvacuationCandidate(*map)); |
3136 if (mask < (1 << kBitsPerByte)) { | 3137 if (mask < (1 << kBitsPerByte)) { |
3137 test_b(Operand::StaticVariable(reference), static_cast<uint8_t>(mask)); | 3138 test_b(Operand::StaticVariable(reference), static_cast<uint8_t>(mask)); |
3138 } else { | 3139 } else { |
3139 test(Operand::StaticVariable(reference), Immediate(mask)); | 3140 test(Operand::StaticVariable(reference), Immediate(mask)); |
3140 } | 3141 } |
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3430 if (ms.shift() > 0) sar(edx, ms.shift()); | 3431 if (ms.shift() > 0) sar(edx, ms.shift()); |
3431 mov(eax, dividend); | 3432 mov(eax, dividend); |
3432 shr(eax, 31); | 3433 shr(eax, 31); |
3433 add(edx, eax); | 3434 add(edx, eax); |
3434 } | 3435 } |
3435 | 3436 |
3436 | 3437 |
3437 } } // namespace v8::internal | 3438 } } // namespace v8::internal |
3438 | 3439 |
3439 #endif // V8_TARGET_ARCH_IA32 | 3440 #endif // V8_TARGET_ARCH_IA32 |
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