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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). rcx is zero for method calls and non-zero for | 137 // receiver object). rcx 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 begin; |
| 142 __ bind(&begin); |
141 __ testq(rcx, rcx); | 143 __ testq(rcx, rcx); |
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 __ LoadRoot(kScratchRegister, Heap::kUndefinedValueRootIndex); | 147 __ LoadRoot(kScratchRegister, Heap::kUndefinedValueRootIndex); |
146 __ movq(Operand(rsp, receiver_offset), kScratchRegister); | 148 __ movq(Operand(rsp, receiver_offset), kScratchRegister); |
147 __ bind(&ok); | 149 __ bind(&ok); |
| 150 ASSERT_EQ(kSizeOfFullCodegenStrictModePrologue, ok.pos() - begin.pos()); |
148 } | 151 } |
149 | 152 |
150 // Open a frame scope to indicate that there is a frame on the stack. The | 153 // Open a frame scope to indicate that there is a frame on the stack. The |
151 // MANUAL indicates that the scope shouldn't actually generate code to set up | 154 // MANUAL indicates that the scope shouldn't actually generate code to set up |
152 // the frame (that is done below). | 155 // the frame (that is done below). |
153 FrameScope frame_scope(masm_, StackFrame::MANUAL); | 156 FrameScope frame_scope(masm_, StackFrame::MANUAL); |
154 | 157 |
155 __ push(rbp); // Caller's frame pointer. | 158 __ push(rbp); // Caller's frame pointer. |
156 __ movq(rbp, rsp); | 159 __ movq(rbp, rsp); |
157 __ push(rsi); // Callee's context. | 160 __ push(rsi); // Callee's context. |
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4514 *context_length = 0; | 4517 *context_length = 0; |
4515 return previous_; | 4518 return previous_; |
4516 } | 4519 } |
4517 | 4520 |
4518 | 4521 |
4519 #undef __ | 4522 #undef __ |
4520 | 4523 |
4521 } } // namespace v8::internal | 4524 } } // namespace v8::internal |
4522 | 4525 |
4523 #endif // V8_TARGET_ARCH_X64 | 4526 #endif // V8_TARGET_ARCH_X64 |
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