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| 1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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| 71 // Compute top scope and allocate variables. For lazy compilation | 71 // Compute top scope and allocate variables. For lazy compilation |
| 72 // the top scope only contains the single lazily compiled function, | 72 // the top scope only contains the single lazily compiled function, |
| 73 // so this doesn't re-allocate variables repeatedly. | 73 // so this doesn't re-allocate variables repeatedly. |
| 74 HistogramTimerScope timer(&Counters::variable_allocation); | 74 HistogramTimerScope timer(&Counters::variable_allocation); |
| 75 Scope* top = info->scope(); | 75 Scope* top = info->scope(); |
| 76 while (top->outer_scope() != NULL) top = top->outer_scope(); | 76 while (top->outer_scope() != NULL) top = top->outer_scope(); |
| 77 top->AllocateVariables(context); | 77 top->AllocateVariables(context); |
| 78 } | 78 } |
| 79 | 79 |
| 80 #ifdef DEBUG | 80 #ifdef DEBUG |
| 81 if (Bootstrapper::IsActive() ? | 81 if (Isolate::Current()->bootstrapper()->IsActive() ? |
| 82 FLAG_print_builtin_scopes : | 82 FLAG_print_builtin_scopes : |
| 83 FLAG_print_scopes) { | 83 FLAG_print_scopes) { |
| 84 info->scope()->Print(); | 84 info->scope()->Print(); |
| 85 } | 85 } |
| 86 #endif | 86 #endif |
| 87 | 87 |
| 88 // Optimize the AST. | 88 // Optimize the AST. |
| 89 if (!Rewriter::Optimize(function)) { | 89 if (!Rewriter::Optimize(function)) { |
| 90 // Signal a stack overflow by returning a null handle. The stack | 90 // Signal a stack overflow by returning a null handle. The stack |
| 91 // overflow exception will be thrown by the caller. | 91 // overflow exception will be thrown by the caller. |
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| 637 PROFILE(CodeCreateEvent(Logger::ToNativeByScript(tag, *script), | 637 PROFILE(CodeCreateEvent(Logger::ToNativeByScript(tag, *script), |
| 638 *code, *func_name)); | 638 *code, *func_name)); |
| 639 OPROFILE(CreateNativeCodeRegion(*func_name, | 639 OPROFILE(CreateNativeCodeRegion(*func_name, |
| 640 code->instruction_start(), | 640 code->instruction_start(), |
| 641 code->instruction_size())); | 641 code->instruction_size())); |
| 642 } | 642 } |
| 643 } | 643 } |
| 644 } | 644 } |
| 645 | 645 |
| 646 } } // namespace v8::internal | 646 } } // namespace v8::internal |
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