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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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131 __ int3(); | 131 __ int3(); |
132 } | 132 } |
133 #endif | 133 #endif |
134 | 134 |
135 // Strict mode functions and builtins need to replace the receiver | 135 // Strict mode functions and builtins need to replace the receiver |
136 // with undefined when called as functions (without an explicit | 136 // with undefined when called as functions (without an explicit |
137 // receiver object). ecx is zero for method calls and non-zero for | 137 // receiver object). ecx is zero for method calls and non-zero for |
138 // function calls. | 138 // function calls. |
139 if (!info->is_classic_mode() || info->is_native()) { | 139 if (!info->is_classic_mode() || info->is_native()) { |
140 Label ok; | 140 Label ok; |
| 141 Label start; |
| 142 __ bind(&start); |
141 __ test(ecx, ecx); | 143 __ test(ecx, ecx); |
142 __ j(zero, &ok, Label::kNear); | 144 __ j(zero, &ok, Label::kNear); |
143 // +1 for return address. | 145 // +1 for return address. |
144 int receiver_offset = (info->scope()->num_parameters() + 1) * kPointerSize; | 146 int receiver_offset = (info->scope()->num_parameters() + 1) * kPointerSize; |
145 __ mov(ecx, Operand(esp, receiver_offset)); | 147 __ mov(ecx, Operand(esp, receiver_offset)); |
146 __ JumpIfSmi(ecx, &ok); | 148 __ JumpIfSmi(ecx, &ok); |
147 __ CmpObjectType(ecx, JS_GLOBAL_PROXY_TYPE, ecx); | 149 __ CmpObjectType(ecx, JS_GLOBAL_PROXY_TYPE, ecx); |
148 __ j(not_equal, &ok, Label::kNear); | 150 __ j(not_equal, &ok, Label::kNear); |
149 __ mov(Operand(esp, receiver_offset), | 151 __ mov(Operand(esp, receiver_offset), |
150 Immediate(isolate()->factory()->undefined_value())); | 152 Immediate(isolate()->factory()->undefined_value())); |
151 __ bind(&ok); | 153 __ bind(&ok); |
| 154 ASSERT_EQ(kSizeOfFullCodegenStrictModePrologue, ok.pos() - start.pos()); |
152 } | 155 } |
153 | 156 |
154 // Open a frame scope to indicate that there is a frame on the stack. The | 157 // Open a frame scope to indicate that there is a frame on the stack. The |
155 // MANUAL indicates that the scope shouldn't actually generate code to set up | 158 // MANUAL indicates that the scope shouldn't actually generate code to set up |
156 // the frame (that is done below). | 159 // the frame (that is done below). |
157 FrameScope frame_scope(masm_, StackFrame::MANUAL); | 160 FrameScope frame_scope(masm_, StackFrame::MANUAL); |
158 | 161 |
159 __ push(ebp); // Caller's frame pointer. | 162 __ push(ebp); // Caller's frame pointer. |
160 __ mov(ebp, esp); | 163 __ mov(ebp, esp); |
161 __ push(esi); // Callee's context. | 164 __ push(esi); // Callee's context. |
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4515 *stack_depth = 0; | 4518 *stack_depth = 0; |
4516 *context_length = 0; | 4519 *context_length = 0; |
4517 return previous_; | 4520 return previous_; |
4518 } | 4521 } |
4519 | 4522 |
4520 #undef __ | 4523 #undef __ |
4521 | 4524 |
4522 } } // namespace v8::internal | 4525 } } // namespace v8::internal |
4523 | 4526 |
4524 #endif // V8_TARGET_ARCH_IA32 | 4527 #endif // V8_TARGET_ARCH_IA32 |
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