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| 1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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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| 853 FrameScope scope(masm, StackFrame::INTERNAL); | 853 FrameScope scope(masm, StackFrame::INTERNAL); |
| 854 | 854 |
| 855 // Preserve registers across notification, this is important for compiled | 855 // Preserve registers across notification, this is important for compiled |
| 856 // stubs that tail call the runtime on deopts passing their parameters in | 856 // stubs that tail call the runtime on deopts passing their parameters in |
| 857 // registers. | 857 // registers. |
| 858 // TODO(jbramley): Is it correct (and appropriate) to use safepoint | 858 // TODO(jbramley): Is it correct (and appropriate) to use safepoint |
| 859 // registers here? According to the comment above, we should only need to | 859 // registers here? According to the comment above, we should only need to |
| 860 // preserve the registers with parameters. | 860 // preserve the registers with parameters. |
| 861 __ PushXRegList(kSafepointSavedRegisters); | 861 __ PushXRegList(kSafepointSavedRegisters); |
| 862 // Pass the function and deoptimization type to the runtime system. | 862 // Pass the function and deoptimization type to the runtime system. |
| 863 __ CallRuntime(Runtime::kNotifyStubFailure, 0); | 863 __ CallRuntime(Runtime::kNotifyStubFailure, 0, save_doubles); |
| 864 __ PopXRegList(kSafepointSavedRegisters); | 864 __ PopXRegList(kSafepointSavedRegisters); |
| 865 } | 865 } |
| 866 | 866 |
| 867 // Ignore state (pushed by Deoptimizer::EntryGenerator::Generate). | 867 // Ignore state (pushed by Deoptimizer::EntryGenerator::Generate). |
| 868 __ Drop(1); | 868 __ Drop(1); |
| 869 | 869 |
| 870 // Jump to the miss handler. Deoptimizer::EntryGenerator::Generate loads this | 870 // Jump to the miss handler. Deoptimizer::EntryGenerator::Generate loads this |
| 871 // into lr before it jumps here. | 871 // into lr before it jumps here. |
| 872 __ Br(lr); | 872 __ Br(lr); |
| 873 } | 873 } |
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| 1488 __ Bind(&dont_adapt_arguments); | 1488 __ Bind(&dont_adapt_arguments); |
| 1489 __ Jump(x3); | 1489 __ Jump(x3); |
| 1490 } | 1490 } |
| 1491 | 1491 |
| 1492 | 1492 |
| 1493 #undef __ | 1493 #undef __ |
| 1494 | 1494 |
| 1495 } } // namespace v8::internal | 1495 } } // namespace v8::internal |
| 1496 | 1496 |
| 1497 #endif // V8_TARGET_ARCH_ARM | 1497 #endif // V8_TARGET_ARCH_ARM |
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