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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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746 | 746 |
747 | 747 |
748 // Generate code to check that a global property cell is empty. Create | 748 // Generate code to check that a global property cell is empty. Create |
749 // the property cell at compilation time if no cell exists for the | 749 // the property cell at compilation time if no cell exists for the |
750 // property. | 750 // property. |
751 static void GenerateCheckPropertyCell(MacroAssembler* masm, | 751 static void GenerateCheckPropertyCell(MacroAssembler* masm, |
752 Handle<GlobalObject> global, | 752 Handle<GlobalObject> global, |
753 Handle<Name> name, | 753 Handle<Name> name, |
754 Register scratch, | 754 Register scratch, |
755 Label* miss) { | 755 Label* miss) { |
756 Handle<JSGlobalPropertyCell> cell = | 756 Handle<PropertyCell> cell = |
757 GlobalObject::EnsurePropertyCell(global, name); | 757 GlobalObject::EnsurePropertyCell(global, name); |
758 ASSERT(cell->value()->IsTheHole()); | 758 ASSERT(cell->value()->IsTheHole()); |
759 Handle<Oddball> the_hole = masm->isolate()->factory()->the_hole_value(); | 759 Handle<Oddball> the_hole = masm->isolate()->factory()->the_hole_value(); |
760 if (Serializer::enabled()) { | 760 if (Serializer::enabled()) { |
761 __ mov(scratch, Immediate(cell)); | 761 __ mov(scratch, Immediate(cell)); |
762 __ cmp(FieldOperand(scratch, JSGlobalPropertyCell::kValueOffset), | 762 __ cmp(FieldOperand(scratch, PropertyCell::kValueOffset), |
763 Immediate(the_hole)); | 763 Immediate(the_hole)); |
764 } else { | 764 } else { |
765 __ cmp(Operand::ForCell(cell), Immediate(the_hole)); | 765 __ cmp(Operand::ForCell(cell), Immediate(the_hole)); |
766 } | 766 } |
767 __ j(not_equal, miss); | 767 __ j(not_equal, miss); |
768 } | 768 } |
769 | 769 |
770 | 770 |
771 // Both name_reg and receiver_reg are preserved on jumps to miss_label, | 771 // Both name_reg and receiver_reg are preserved on jumps to miss_label, |
772 // but may be destroyed if store is successful. | 772 // but may be destroyed if store is successful. |
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2745 GenerateMissBranch(); | 2745 GenerateMissBranch(); |
2746 | 2746 |
2747 // Return the generated code. | 2747 // Return the generated code. |
2748 return GetCode(Code::INTERCEPTOR, name); | 2748 return GetCode(Code::INTERCEPTOR, name); |
2749 } | 2749 } |
2750 | 2750 |
2751 | 2751 |
2752 Handle<Code> CallStubCompiler::CompileCallGlobal( | 2752 Handle<Code> CallStubCompiler::CompileCallGlobal( |
2753 Handle<JSObject> object, | 2753 Handle<JSObject> object, |
2754 Handle<GlobalObject> holder, | 2754 Handle<GlobalObject> holder, |
2755 Handle<JSGlobalPropertyCell> cell, | 2755 Handle<PropertyCell> cell, |
2756 Handle<JSFunction> function, | 2756 Handle<JSFunction> function, |
2757 Handle<Name> name) { | 2757 Handle<Name> name) { |
2758 // ----------- S t a t e ------------- | 2758 // ----------- S t a t e ------------- |
2759 // -- ecx : name | 2759 // -- ecx : name |
2760 // -- esp[0] : return address | 2760 // -- esp[0] : return address |
2761 // -- esp[(argc - n) * 4] : arg[n] (zero-based) | 2761 // -- esp[(argc - n) * 4] : arg[n] (zero-based) |
2762 // -- ... | 2762 // -- ... |
2763 // -- esp[(argc + 1) * 4] : receiver | 2763 // -- esp[(argc + 1) * 4] : receiver |
2764 // ----------------------------------- | 2764 // ----------------------------------- |
2765 | 2765 |
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2928 __ bind(&miss); | 2928 __ bind(&miss); |
2929 TailCallBuiltin(masm(), MissBuiltin(kind())); | 2929 TailCallBuiltin(masm(), MissBuiltin(kind())); |
2930 | 2930 |
2931 // Return the generated code. | 2931 // Return the generated code. |
2932 return GetICCode(kind(), Code::INTERCEPTOR, name); | 2932 return GetICCode(kind(), Code::INTERCEPTOR, name); |
2933 } | 2933 } |
2934 | 2934 |
2935 | 2935 |
2936 Handle<Code> StoreStubCompiler::CompileStoreGlobal( | 2936 Handle<Code> StoreStubCompiler::CompileStoreGlobal( |
2937 Handle<GlobalObject> object, | 2937 Handle<GlobalObject> object, |
2938 Handle<JSGlobalPropertyCell> cell, | 2938 Handle<PropertyCell> cell, |
2939 Handle<Name> name) { | 2939 Handle<Name> name) { |
2940 Label miss; | 2940 Label miss; |
2941 | 2941 |
2942 // Check that the map of the global has not changed. | 2942 // Check that the map of the global has not changed. |
2943 __ cmp(FieldOperand(receiver(), HeapObject::kMapOffset), | 2943 __ cmp(FieldOperand(receiver(), HeapObject::kMapOffset), |
2944 Immediate(Handle<Map>(object->map()))); | 2944 Immediate(Handle<Map>(object->map()))); |
2945 __ j(not_equal, &miss); | 2945 __ j(not_equal, &miss); |
2946 | 2946 |
2947 // Compute the cell operand to use. | 2947 // Compute the cell operand to use. |
2948 __ mov(scratch1(), Immediate(cell)); | 2948 __ mov(scratch1(), Immediate(cell)); |
2949 Operand cell_operand = | 2949 Operand cell_operand = |
2950 FieldOperand(scratch1(), JSGlobalPropertyCell::kValueOffset); | 2950 FieldOperand(scratch1(), PropertyCell::kValueOffset); |
2951 | 2951 |
2952 // Check that the value in the cell is not the hole. If it is, this | 2952 // Check that the value in the cell is not the hole. If it is, this |
2953 // cell could have been deleted and reintroducing the global needs | 2953 // cell could have been deleted and reintroducing the global needs |
2954 // to update the property details in the property dictionary of the | 2954 // to update the property details in the property dictionary of the |
2955 // global object. We bail out to the runtime system to do that. | 2955 // global object. We bail out to the runtime system to do that. |
2956 __ cmp(cell_operand, factory()->the_hole_value()); | 2956 __ cmp(cell_operand, factory()->the_hole_value()); |
2957 __ j(equal, &miss); | 2957 __ j(equal, &miss); |
2958 | 2958 |
2959 // Store the value in the cell. | 2959 // Store the value in the cell. |
2960 __ mov(cell_operand, value()); | 2960 __ mov(cell_operand, value()); |
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3101 } | 3101 } |
3102 | 3102 |
3103 | 3103 |
3104 #undef __ | 3104 #undef __ |
3105 #define __ ACCESS_MASM(masm()) | 3105 #define __ ACCESS_MASM(masm()) |
3106 | 3106 |
3107 | 3107 |
3108 Handle<Code> LoadStubCompiler::CompileLoadGlobal( | 3108 Handle<Code> LoadStubCompiler::CompileLoadGlobal( |
3109 Handle<JSObject> object, | 3109 Handle<JSObject> object, |
3110 Handle<GlobalObject> global, | 3110 Handle<GlobalObject> global, |
3111 Handle<JSGlobalPropertyCell> cell, | 3111 Handle<PropertyCell> cell, |
3112 Handle<Name> name, | 3112 Handle<Name> name, |
3113 bool is_dont_delete) { | 3113 bool is_dont_delete) { |
3114 Label success, miss; | 3114 Label success, miss; |
3115 | 3115 |
3116 __ CheckMap(receiver(), Handle<Map>(object->map()), &miss, DO_SMI_CHECK); | 3116 __ CheckMap(receiver(), Handle<Map>(object->map()), &miss, DO_SMI_CHECK); |
3117 HandlerFrontendHeader( | 3117 HandlerFrontendHeader( |
3118 object, receiver(), Handle<JSObject>::cast(global), name, &miss); | 3118 object, receiver(), Handle<JSObject>::cast(global), name, &miss); |
3119 // Get the value from the cell. | 3119 // Get the value from the cell. |
3120 if (Serializer::enabled()) { | 3120 if (Serializer::enabled()) { |
3121 __ mov(eax, Immediate(cell)); | 3121 __ mov(eax, Immediate(cell)); |
3122 __ mov(eax, FieldOperand(eax, JSGlobalPropertyCell::kValueOffset)); | 3122 __ mov(eax, FieldOperand(eax, PropertyCell::kValueOffset)); |
3123 } else { | 3123 } else { |
3124 __ mov(eax, Operand::ForCell(cell)); | 3124 __ mov(eax, Operand::ForCell(cell)); |
3125 } | 3125 } |
3126 | 3126 |
3127 // Check for deleted property if property can actually be deleted. | 3127 // Check for deleted property if property can actually be deleted. |
3128 if (!is_dont_delete) { | 3128 if (!is_dont_delete) { |
3129 __ cmp(eax, factory()->the_hole_value()); | 3129 __ cmp(eax, factory()->the_hole_value()); |
3130 __ j(equal, &miss); | 3130 __ j(equal, &miss); |
3131 } else if (FLAG_debug_code) { | 3131 } else if (FLAG_debug_code) { |
3132 __ cmp(eax, factory()->the_hole_value()); | 3132 __ cmp(eax, factory()->the_hole_value()); |
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3743 TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow); | 3743 TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow); |
3744 } | 3744 } |
3745 } | 3745 } |
3746 | 3746 |
3747 | 3747 |
3748 #undef __ | 3748 #undef __ |
3749 | 3749 |
3750 } } // namespace v8::internal | 3750 } } // namespace v8::internal |
3751 | 3751 |
3752 #endif // V8_TARGET_ARCH_IA32 | 3752 #endif // V8_TARGET_ARCH_IA32 |
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