OLD | NEW |
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 |
(...skipping 131 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
142 __ stop("stop-at"); | 142 __ stop("stop-at"); |
143 } | 143 } |
144 #endif | 144 #endif |
145 | 145 |
146 // Strict mode functions and builtins need to replace the receiver | 146 // Strict mode functions and builtins need to replace the receiver |
147 // with undefined when called as functions (without an explicit | 147 // with undefined when called as functions (without an explicit |
148 // receiver object). r5 is zero for method calls and non-zero for | 148 // receiver object). r5 is zero for method calls and non-zero for |
149 // function calls. | 149 // function calls. |
150 if (!info->is_classic_mode() || info->is_native()) { | 150 if (!info->is_classic_mode() || info->is_native()) { |
151 Label ok; | 151 Label ok; |
| 152 Label begin; |
| 153 __ bind(&begin); |
152 __ cmp(r5, Operand(0)); | 154 __ cmp(r5, Operand(0)); |
153 __ b(eq, &ok); | 155 __ b(eq, &ok); |
154 int receiver_offset = info->scope()->num_parameters() * kPointerSize; | 156 int receiver_offset = info->scope()->num_parameters() * kPointerSize; |
155 __ LoadRoot(r2, Heap::kUndefinedValueRootIndex); | 157 __ LoadRoot(r2, Heap::kUndefinedValueRootIndex); |
156 __ str(r2, MemOperand(sp, receiver_offset)); | 158 __ str(r2, MemOperand(sp, receiver_offset)); |
157 __ bind(&ok); | 159 __ bind(&ok); |
| 160 ASSERT_EQ(kSizeOfFullCodegenStrictModePrologue, ok.pos() - begin.pos()); |
158 } | 161 } |
159 | 162 |
160 // Open a frame scope to indicate that there is a frame on the stack. The | 163 // Open a frame scope to indicate that there is a frame on the stack. The |
161 // MANUAL indicates that the scope shouldn't actually generate code to set up | 164 // MANUAL indicates that the scope shouldn't actually generate code to set up |
162 // the frame (that is done below). | 165 // the frame (that is done below). |
163 FrameScope frame_scope(masm_, StackFrame::MANUAL); | 166 FrameScope frame_scope(masm_, StackFrame::MANUAL); |
164 | 167 |
165 int locals_count = info->scope()->num_stack_slots(); | 168 int locals_count = info->scope()->num_stack_slots(); |
166 | 169 |
167 __ Push(lr, fp, cp, r1); | 170 // The following four instructions must remain together and unmodified for |
168 if (locals_count > 0) { | 171 // code aging to work properly. |
169 // Load undefined value here, so the value is ready for the loop | 172 __ stm(db_w, sp, r1.bit() | cp.bit() | fp.bit() | lr.bit()); |
170 // below. | 173 // Load undefined value here, so the value is ready for the loop |
171 __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); | 174 // below. |
172 } | 175 __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); |
173 // Adjust fp to point to caller's fp. | 176 // Adjust fp to point to caller's fp. |
174 __ add(fp, sp, Operand(2 * kPointerSize)); | 177 __ add(fp, sp, Operand(2 * kPointerSize)); |
175 | 178 |
176 { Comment cmnt(masm_, "[ Allocate locals"); | 179 { Comment cmnt(masm_, "[ Allocate locals"); |
177 for (int i = 0; i < locals_count; i++) { | 180 for (int i = 0; i < locals_count; i++) { |
178 __ push(ip); | 181 __ push(ip); |
179 } | 182 } |
180 } | 183 } |
181 | 184 |
182 bool function_in_register = true; | 185 bool function_in_register = true; |
(...skipping 4350 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
4533 *context_length = 0; | 4536 *context_length = 0; |
4534 return previous_; | 4537 return previous_; |
4535 } | 4538 } |
4536 | 4539 |
4537 | 4540 |
4538 #undef __ | 4541 #undef __ |
4539 | 4542 |
4540 } } // namespace v8::internal | 4543 } } // namespace v8::internal |
4541 | 4544 |
4542 #endif // V8_TARGET_ARCH_ARM | 4545 #endif // V8_TARGET_ARCH_ARM |
OLD | NEW |