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Side by Side Diff: src/objects-inl.h

Issue 16782004: Reland "Enable map dependency to in-flight compilation info." (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: The fix. Created 7 years, 6 months ago
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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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3652 DependentCode::kPrototypeCheckGroup); 3652 DependentCode::kPrototypeCheckGroup);
3653 } 3653 }
3654 3654
3655 3655
3656 bool Map::CanOmitPrototypeChecks() { 3656 bool Map::CanOmitPrototypeChecks() {
3657 return !HasTransitionArray() && !is_dictionary_map() && 3657 return !HasTransitionArray() && !is_dictionary_map() &&
3658 FLAG_omit_prototype_checks_for_leaf_maps; 3658 FLAG_omit_prototype_checks_for_leaf_maps;
3659 } 3659 }
3660 3660
3661 3661
3662 void Map::AddDependentCode(DependentCode::DependencyGroup group,
3663 Handle<Code> code) {
3664 Handle<DependentCode> codes =
3665 DependentCode::Insert(Handle<DependentCode>(dependent_code()),
3666 group, code);
3667 if (*codes != dependent_code()) {
3668 set_dependent_code(*codes);
3669 }
3670 }
3671
3672
3673 int DependentCode::number_of_entries(DependencyGroup group) { 3662 int DependentCode::number_of_entries(DependencyGroup group) {
3674 if (length() == 0) return 0; 3663 if (length() == 0) return 0;
3675 return Smi::cast(get(group))->value(); 3664 return Smi::cast(get(group))->value();
3676 } 3665 }
3677 3666
3678 3667
3679 void DependentCode::set_number_of_entries(DependencyGroup group, int value) { 3668 void DependentCode::set_number_of_entries(DependencyGroup group, int value) {
3680 set(group, Smi::FromInt(value)); 3669 set(group, Smi::FromInt(value));
3681 } 3670 }
3682 3671
3683 3672
3673 bool DependentCode::is_code_at(int i) {
3674 return get(kCodesStartIndex + i)->IsCode();
3675 }
3676
3684 Code* DependentCode::code_at(int i) { 3677 Code* DependentCode::code_at(int i) {
3685 return Code::cast(get(kCodesStartIndex + i)); 3678 return Code::cast(get(kCodesStartIndex + i));
3686 } 3679 }
3687 3680
3688 3681
3689 void DependentCode::set_code_at(int i, Code* value) { 3682 CompilationInfo* DependentCode::compilation_info_at(int i) {
3690 set(kCodesStartIndex + i, value); 3683 return reinterpret_cast<CompilationInfo*>(
3684 Foreign::cast(get(kCodesStartIndex + i))->foreign_address());
3691 } 3685 }
3692 3686
3693 3687
3694 Object** DependentCode::code_slot_at(int i) { 3688 void DependentCode::set_object_at(int i, Object* object) {
3689 set(kCodesStartIndex + i, object);
3690 }
3691
3692
3693 Object* DependentCode::object_at(int i) {
3694 return get(kCodesStartIndex + i);
3695 }
3696
3697
3698 Object** DependentCode::slot_at(int i) {
3695 return HeapObject::RawField( 3699 return HeapObject::RawField(
3696 this, FixedArray::OffsetOfElementAt(kCodesStartIndex + i)); 3700 this, FixedArray::OffsetOfElementAt(kCodesStartIndex + i));
3697 } 3701 }
3698 3702
3699 3703
3700 void DependentCode::clear_code_at(int i) { 3704 void DependentCode::clear_at(int i) {
3701 set_undefined(kCodesStartIndex + i); 3705 set_undefined(kCodesStartIndex + i);
3702 } 3706 }
3703 3707
3704 3708
3709 void DependentCode::copy(int from, int to) {
3710 set(kCodesStartIndex + to, get(kCodesStartIndex + from));
3711 }
3712
3713
3705 void DependentCode::ExtendGroup(DependencyGroup group) { 3714 void DependentCode::ExtendGroup(DependencyGroup group) {
3706 GroupStartIndexes starts(this); 3715 GroupStartIndexes starts(this);
3707 for (int g = kGroupCount - 1; g > group; g--) { 3716 for (int g = kGroupCount - 1; g > group; g--) {
3708 if (starts.at(g) < starts.at(g + 1)) { 3717 if (starts.at(g) < starts.at(g + 1)) {
3709 set_code_at(starts.at(g + 1), code_at(starts.at(g))); 3718 copy(starts.at(g), starts.at(g + 1));
3710 } 3719 }
3711 } 3720 }
3712 } 3721 }
3713 3722
3714 3723
3715 void Code::set_flags(Code::Flags flags) { 3724 void Code::set_flags(Code::Flags flags) {
3716 STATIC_ASSERT(Code::NUMBER_OF_KINDS <= KindField::kMax + 1); 3725 STATIC_ASSERT(Code::NUMBER_OF_KINDS <= KindField::kMax + 1);
3717 // Make sure that all call stubs have an arguments count. 3726 // Make sure that all call stubs have an arguments count.
3718 ASSERT((ExtractKindFromFlags(flags) != CALL_IC && 3727 ASSERT((ExtractKindFromFlags(flags) != CALL_IC &&
3719 ExtractKindFromFlags(flags) != KEYED_CALL_IC) || 3728 ExtractKindFromFlags(flags) != KEYED_CALL_IC) ||
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6231 #undef WRITE_UINT32_FIELD 6240 #undef WRITE_UINT32_FIELD
6232 #undef READ_SHORT_FIELD 6241 #undef READ_SHORT_FIELD
6233 #undef WRITE_SHORT_FIELD 6242 #undef WRITE_SHORT_FIELD
6234 #undef READ_BYTE_FIELD 6243 #undef READ_BYTE_FIELD
6235 #undef WRITE_BYTE_FIELD 6244 #undef WRITE_BYTE_FIELD
6236 6245
6237 6246
6238 } } // namespace v8::internal 6247 } } // namespace v8::internal
6239 6248
6240 #endif // V8_OBJECTS_INL_H_ 6249 #endif // V8_OBJECTS_INL_H_
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