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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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1130 void FullCodeGenerator::EmitLoadGlobalCheckExtensions(Variable* var, | 1130 void FullCodeGenerator::EmitLoadGlobalCheckExtensions(Variable* var, |
1131 TypeofState typeof_state, | 1131 TypeofState typeof_state, |
1132 Label* slow) { | 1132 Label* slow) { |
1133 Register current = cp; | 1133 Register current = cp; |
1134 Register next = a1; | 1134 Register next = a1; |
1135 Register temp = a2; | 1135 Register temp = a2; |
1136 | 1136 |
1137 Scope* s = scope(); | 1137 Scope* s = scope(); |
1138 while (s != NULL) { | 1138 while (s != NULL) { |
1139 if (s->num_heap_slots() > 0) { | 1139 if (s->num_heap_slots() > 0) { |
1140 if (s->calls_eval()) { | 1140 if (s->calls_non_strict_eval()) { |
1141 // Check that extension is NULL. | 1141 // Check that extension is NULL. |
1142 __ lw(temp, ContextOperand(current, Context::EXTENSION_INDEX)); | 1142 __ lw(temp, ContextOperand(current, Context::EXTENSION_INDEX)); |
1143 __ Branch(slow, ne, temp, Operand(zero_reg)); | 1143 __ Branch(slow, ne, temp, Operand(zero_reg)); |
1144 } | 1144 } |
1145 // Load next context in chain. | 1145 // Load next context in chain. |
1146 __ lw(next, ContextOperand(current, Context::PREVIOUS_INDEX)); | 1146 __ lw(next, ContextOperand(current, Context::PREVIOUS_INDEX)); |
1147 // Walk the rest of the chain without clobbering cp. | 1147 // Walk the rest of the chain without clobbering cp. |
1148 current = next; | 1148 current = next; |
1149 } | 1149 } |
1150 // If no outer scope calls eval, we do not need to check more | 1150 // If no outer scope calls eval, we do not need to check more |
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1184 | 1184 |
1185 MemOperand FullCodeGenerator::ContextSlotOperandCheckExtensions(Variable* var, | 1185 MemOperand FullCodeGenerator::ContextSlotOperandCheckExtensions(Variable* var, |
1186 Label* slow) { | 1186 Label* slow) { |
1187 ASSERT(var->IsContextSlot()); | 1187 ASSERT(var->IsContextSlot()); |
1188 Register context = cp; | 1188 Register context = cp; |
1189 Register next = a3; | 1189 Register next = a3; |
1190 Register temp = t0; | 1190 Register temp = t0; |
1191 | 1191 |
1192 for (Scope* s = scope(); s != var->scope(); s = s->outer_scope()) { | 1192 for (Scope* s = scope(); s != var->scope(); s = s->outer_scope()) { |
1193 if (s->num_heap_slots() > 0) { | 1193 if (s->num_heap_slots() > 0) { |
1194 if (s->calls_eval()) { | 1194 if (s->calls_non_strict_eval()) { |
1195 // Check that extension is NULL. | 1195 // Check that extension is NULL. |
1196 __ lw(temp, ContextOperand(context, Context::EXTENSION_INDEX)); | 1196 __ lw(temp, ContextOperand(context, Context::EXTENSION_INDEX)); |
1197 __ Branch(slow, ne, temp, Operand(zero_reg)); | 1197 __ Branch(slow, ne, temp, Operand(zero_reg)); |
1198 } | 1198 } |
1199 __ lw(next, ContextOperand(context, Context::PREVIOUS_INDEX)); | 1199 __ lw(next, ContextOperand(context, Context::PREVIOUS_INDEX)); |
1200 // Walk the rest of the chain without clobbering cp. | 1200 // Walk the rest of the chain without clobbering cp. |
1201 context = next; | 1201 context = next; |
1202 } | 1202 } |
1203 } | 1203 } |
1204 // Check that last extension is NULL. | 1204 // Check that last extension is NULL. |
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4297 *context_length = 0; | 4297 *context_length = 0; |
4298 return previous_; | 4298 return previous_; |
4299 } | 4299 } |
4300 | 4300 |
4301 | 4301 |
4302 #undef __ | 4302 #undef __ |
4303 | 4303 |
4304 } } // namespace v8::internal | 4304 } } // namespace v8::internal |
4305 | 4305 |
4306 #endif // V8_TARGET_ARCH_MIPS | 4306 #endif // V8_TARGET_ARCH_MIPS |
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