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Issue 7068009: Pass undefined to JS builtins when called with implicit receiver. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Update sputnik test expectations. Created 9 years, 7 months ago
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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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4448 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); 4448 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
4449 __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, safepoint_generator); 4449 __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, safepoint_generator);
4450 } 4450 }
4451 4451
4452 4452
4453 #undef __ 4453 #undef __
4454 4454
4455 } } // namespace v8::internal 4455 } } // namespace v8::internal
4456 4456
4457 #endif // V8_TARGET_ARCH_IA32 4457 #endif // V8_TARGET_ARCH_IA32
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