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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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8044 } | 8044 } |
8045 } | 8045 } |
8046 | 8046 |
8047 // Revert to the original stack checks in the original unoptimized code. | 8047 // Revert to the original stack checks in the original unoptimized code. |
8048 if (FLAG_trace_osr) { | 8048 if (FLAG_trace_osr) { |
8049 PrintF("[restoring original stack checks in "); | 8049 PrintF("[restoring original stack checks in "); |
8050 function->PrintName(); | 8050 function->PrintName(); |
8051 PrintF("]\n"); | 8051 PrintF("]\n"); |
8052 } | 8052 } |
8053 InterruptStub interrupt_stub; | 8053 InterruptStub interrupt_stub; |
8054 Handle<Code> check_code = interrupt_stub.GetCode(); | 8054 Handle<Code> check_code = interrupt_stub.GetCode(isolate); |
8055 Handle<Code> replacement_code = isolate->builtins()->OnStackReplacement(); | 8055 Handle<Code> replacement_code = isolate->builtins()->OnStackReplacement(); |
8056 Deoptimizer::RevertStackCheckCode(*unoptimized, | 8056 Deoptimizer::RevertStackCheckCode(*unoptimized, |
8057 *check_code, | 8057 *check_code, |
8058 *replacement_code); | 8058 *replacement_code); |
8059 | 8059 |
8060 // Allow OSR only at nesting level zero again. | 8060 // Allow OSR only at nesting level zero again. |
8061 unoptimized->set_allow_osr_at_loop_nesting_level(0); | 8061 unoptimized->set_allow_osr_at_loop_nesting_level(0); |
8062 | 8062 |
8063 // If the optimization attempt succeeded, return the AST id tagged as a | 8063 // If the optimization attempt succeeded, return the AST id tagged as a |
8064 // smi. This tells the builtin that we need to translate the unoptimized | 8064 // smi. This tells the builtin that we need to translate the unoptimized |
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13335 // Handle last resort GC and make sure to allow future allocations | 13335 // Handle last resort GC and make sure to allow future allocations |
13336 // to grow the heap without causing GCs (if possible). | 13336 // to grow the heap without causing GCs (if possible). |
13337 isolate->counters()->gc_last_resort_from_js()->Increment(); | 13337 isolate->counters()->gc_last_resort_from_js()->Increment(); |
13338 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, | 13338 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, |
13339 "Runtime::PerformGC"); | 13339 "Runtime::PerformGC"); |
13340 } | 13340 } |
13341 } | 13341 } |
13342 | 13342 |
13343 | 13343 |
13344 } } // namespace v8::internal | 13344 } } // namespace v8::internal |
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