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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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121 bool LCodeGen::GeneratePrologue() { | 121 bool LCodeGen::GeneratePrologue() { |
122 ASSERT(is_generating()); | 122 ASSERT(is_generating()); |
123 | 123 |
124 #ifdef DEBUG | 124 #ifdef DEBUG |
125 if (strlen(FLAG_stop_at) > 0 && | 125 if (strlen(FLAG_stop_at) > 0 && |
126 info_->function()->name()->IsEqualTo(CStrVector(FLAG_stop_at))) { | 126 info_->function()->name()->IsEqualTo(CStrVector(FLAG_stop_at))) { |
127 __ int3(); | 127 __ int3(); |
128 } | 128 } |
129 #endif | 129 #endif |
130 | 130 |
131 // Strict mode functions need to replace the receiver with undefined | 131 // Strict mode functions and builtins need to replace the receiver |
132 // when called as functions (without an explicit receiver | 132 // with undefined when called as functions (without an explicit |
133 // object). ecx is zero for method calls and non-zero for function | 133 // receiver object). ecx is zero for method calls and non-zero for |
134 // calls. | 134 // function calls. |
135 if (info_->is_strict_mode()) { | 135 if (info_->is_strict_mode() || info_->is_native()) { |
136 Label ok; | 136 Label ok; |
137 __ test(ecx, Operand(ecx)); | 137 __ test(ecx, Operand(ecx)); |
138 __ j(zero, &ok, Label::kNear); | 138 __ j(zero, &ok, Label::kNear); |
139 // +1 for return address. | 139 // +1 for return address. |
140 int receiver_offset = (scope()->num_parameters() + 1) * kPointerSize; | 140 int receiver_offset = (scope()->num_parameters() + 1) * kPointerSize; |
141 __ mov(Operand(esp, receiver_offset), | 141 __ mov(Operand(esp, receiver_offset), |
142 Immediate(isolate()->factory()->undefined_value())); | 142 Immediate(isolate()->factory()->undefined_value())); |
143 __ bind(&ok); | 143 __ bind(&ok); |
144 } | 144 } |
145 | 145 |
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4454 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); | 4454 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
4455 __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, safepoint_generator); | 4455 __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, safepoint_generator); |
4456 } | 4456 } |
4457 | 4457 |
4458 | 4458 |
4459 #undef __ | 4459 #undef __ |
4460 | 4460 |
4461 } } // namespace v8::internal | 4461 } } // namespace v8::internal |
4462 | 4462 |
4463 #endif // V8_TARGET_ARCH_IA32 | 4463 #endif // V8_TARGET_ARCH_IA32 |
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