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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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| 1078 | 1078 |
| 1079 void FullCodeGenerator::EmitLoadGlobalCheckExtensions(Variable* var, | 1079 void FullCodeGenerator::EmitLoadGlobalCheckExtensions(Variable* var, |
| 1080 TypeofState typeof_state, | 1080 TypeofState typeof_state, |
| 1081 Label* slow) { | 1081 Label* slow) { |
| 1082 Register context = rsi; | 1082 Register context = rsi; |
| 1083 Register temp = rdx; | 1083 Register temp = rdx; |
| 1084 | 1084 |
| 1085 Scope* s = scope(); | 1085 Scope* s = scope(); |
| 1086 while (s != NULL) { | 1086 while (s != NULL) { |
| 1087 if (s->num_heap_slots() > 0) { | 1087 if (s->num_heap_slots() > 0) { |
| 1088 if (s->calls_eval()) { | 1088 if (s->calls_non_strict_eval()) { |
| 1089 // Check that extension is NULL. | 1089 // Check that extension is NULL. |
| 1090 __ cmpq(ContextOperand(context, Context::EXTENSION_INDEX), | 1090 __ cmpq(ContextOperand(context, Context::EXTENSION_INDEX), |
| 1091 Immediate(0)); | 1091 Immediate(0)); |
| 1092 __ j(not_equal, slow); | 1092 __ j(not_equal, slow); |
| 1093 } | 1093 } |
| 1094 // Load next context in chain. | 1094 // Load next context in chain. |
| 1095 __ movq(temp, ContextOperand(context, Context::PREVIOUS_INDEX)); | 1095 __ movq(temp, ContextOperand(context, Context::PREVIOUS_INDEX)); |
| 1096 // Walk the rest of the chain without clobbering rsi. | 1096 // Walk the rest of the chain without clobbering rsi. |
| 1097 context = temp; | 1097 context = temp; |
| 1098 } | 1098 } |
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| 1138 | 1138 |
| 1139 | 1139 |
| 1140 MemOperand FullCodeGenerator::ContextSlotOperandCheckExtensions(Variable* var, | 1140 MemOperand FullCodeGenerator::ContextSlotOperandCheckExtensions(Variable* var, |
| 1141 Label* slow) { | 1141 Label* slow) { |
| 1142 ASSERT(var->IsContextSlot()); | 1142 ASSERT(var->IsContextSlot()); |
| 1143 Register context = rsi; | 1143 Register context = rsi; |
| 1144 Register temp = rbx; | 1144 Register temp = rbx; |
| 1145 | 1145 |
| 1146 for (Scope* s = scope(); s != var->scope(); s = s->outer_scope()) { | 1146 for (Scope* s = scope(); s != var->scope(); s = s->outer_scope()) { |
| 1147 if (s->num_heap_slots() > 0) { | 1147 if (s->num_heap_slots() > 0) { |
| 1148 if (s->calls_eval()) { | 1148 if (s->calls_non_strict_eval()) { |
| 1149 // Check that extension is NULL. | 1149 // Check that extension is NULL. |
| 1150 __ cmpq(ContextOperand(context, Context::EXTENSION_INDEX), | 1150 __ cmpq(ContextOperand(context, Context::EXTENSION_INDEX), |
| 1151 Immediate(0)); | 1151 Immediate(0)); |
| 1152 __ j(not_equal, slow); | 1152 __ j(not_equal, slow); |
| 1153 } | 1153 } |
| 1154 __ movq(temp, ContextOperand(context, Context::PREVIOUS_INDEX)); | 1154 __ movq(temp, ContextOperand(context, Context::PREVIOUS_INDEX)); |
| 1155 // Walk the rest of the chain without clobbering rsi. | 1155 // Walk the rest of the chain without clobbering rsi. |
| 1156 context = temp; | 1156 context = temp; |
| 1157 } | 1157 } |
| 1158 } | 1158 } |
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| 4187 *context_length = 0; | 4187 *context_length = 0; |
| 4188 return previous_; | 4188 return previous_; |
| 4189 } | 4189 } |
| 4190 | 4190 |
| 4191 | 4191 |
| 4192 #undef __ | 4192 #undef __ |
| 4193 | 4193 |
| 4194 } } // namespace v8::internal | 4194 } } // namespace v8::internal |
| 4195 | 4195 |
| 4196 #endif // V8_TARGET_ARCH_X64 | 4196 #endif // V8_TARGET_ARCH_X64 |
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