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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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| 8525       function->ReplaceCode(function->shared()->code()); | 8525       function->ReplaceCode(function->shared()->code()); | 
| 8526     } | 8526     } | 
| 8527   } else { | 8527   } else { | 
| 8528     // TODO(titzer): we should probably do DeoptimizeCodeList(code) | 8528     // TODO(titzer): we should probably do DeoptimizeCodeList(code) | 
| 8529     // unconditionally if the code is not already marked for deoptimization. | 8529     // unconditionally if the code is not already marked for deoptimization. | 
| 8530     // If there is an index by shared function info, all the better. | 8530     // If there is an index by shared function info, all the better. | 
| 8531     Deoptimizer::DeoptimizeFunction(*function); | 8531     Deoptimizer::DeoptimizeFunction(*function); | 
| 8532   } | 8532   } | 
| 8533   // Evict optimized code for this function from the cache so that it doesn't | 8533   // Evict optimized code for this function from the cache so that it doesn't | 
| 8534   // get used for new closures. | 8534   // get used for new closures. | 
| 8535   function->shared()->EvictFromOptimizedCodeMap(*optimized_code, | 8535   function->shared()->EvictFromOptimizedCodeMap( | 
| 8536                                                 "notify deoptimized"); | 8536       function->context()->native_context(), "notify deoptimized"); | 
| 8537 | 8537 | 
| 8538   return isolate->heap()->undefined_value(); | 8538   return isolate->heap()->undefined_value(); | 
| 8539 } | 8539 } | 
| 8540 | 8540 | 
| 8541 | 8541 | 
| 8542 RUNTIME_FUNCTION(MaybeObject*, Runtime_DeoptimizeFunction) { | 8542 RUNTIME_FUNCTION(MaybeObject*, Runtime_DeoptimizeFunction) { | 
| 8543   HandleScope scope(isolate); | 8543   HandleScope scope(isolate); | 
| 8544   ASSERT(args.length() == 1); | 8544   ASSERT(args.length() == 1); | 
| 8545   CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); | 8545   CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); | 
| 8546   if (!function->IsOptimized()) return isolate->heap()->undefined_value(); | 8546   if (!function->IsOptimized()) return isolate->heap()->undefined_value(); | 
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| 14965     // Handle last resort GC and make sure to allow future allocations | 14965     // Handle last resort GC and make sure to allow future allocations | 
| 14966     // to grow the heap without causing GCs (if possible). | 14966     // to grow the heap without causing GCs (if possible). | 
| 14967     isolate->counters()->gc_last_resort_from_js()->Increment(); | 14967     isolate->counters()->gc_last_resort_from_js()->Increment(); | 
| 14968     isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, | 14968     isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, | 
| 14969                                        "Runtime::PerformGC"); | 14969                                        "Runtime::PerformGC"); | 
| 14970   } | 14970   } | 
| 14971 } | 14971 } | 
| 14972 | 14972 | 
| 14973 | 14973 | 
| 14974 } }  // namespace v8::internal | 14974 } }  // namespace v8::internal | 
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