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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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| 1265 | 1265 |
| 1266 // Preserve registers across notification, this is important for compiled | 1266 // Preserve registers across notification, this is important for compiled |
| 1267 // stubs that tail call the runtime on deopts passing their parameters in | 1267 // stubs that tail call the runtime on deopts passing their parameters in |
| 1268 // registers. | 1268 // registers. |
| 1269 __ stm(db_w, sp, kJSCallerSaved | kCalleeSaved); | 1269 __ stm(db_w, sp, kJSCallerSaved | kCalleeSaved); |
| 1270 // Pass the function and deoptimization type to the runtime system. | 1270 // Pass the function and deoptimization type to the runtime system. |
| 1271 __ CallRuntime(Runtime::kNotifyStubFailure, 0); | 1271 __ CallRuntime(Runtime::kNotifyStubFailure, 0); |
| 1272 __ ldm(ia_w, sp, kJSCallerSaved | kCalleeSaved); | 1272 __ ldm(ia_w, sp, kJSCallerSaved | kCalleeSaved); |
| 1273 } | 1273 } |
| 1274 | 1274 |
| 1275 __ mov(ip, lr); // Stash the miss continuation | |
| 1276 __ add(sp, sp, Operand(kPointerSize)); // Ignore state | 1275 __ add(sp, sp, Operand(kPointerSize)); // Ignore state |
| 1277 __ pop(lr); // Restore LR to continuation in JSFunction | 1276 __ mov(pc, lr); // Jump to miss handler |
| 1278 __ mov(pc, ip); // Jump to miss handler | |
| 1279 } | 1277 } |
| 1280 | 1278 |
| 1281 | 1279 |
| 1282 static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm, | 1280 static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm, |
| 1283 Deoptimizer::BailoutType type) { | 1281 Deoptimizer::BailoutType type) { |
| 1284 { | 1282 { |
| 1285 FrameScope scope(masm, StackFrame::INTERNAL); | 1283 FrameScope scope(masm, StackFrame::INTERNAL); |
| 1286 // Pass the function and deoptimization type to the runtime system. | 1284 // Pass the function and deoptimization type to the runtime system. |
| 1287 __ mov(r0, Operand(Smi::FromInt(static_cast<int>(type)))); | 1285 __ mov(r0, Operand(Smi::FromInt(static_cast<int>(type)))); |
| 1288 __ push(r0); | 1286 __ push(r0); |
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| 1852 __ bind(&dont_adapt_arguments); | 1850 __ bind(&dont_adapt_arguments); |
| 1853 __ Jump(r3); | 1851 __ Jump(r3); |
| 1854 } | 1852 } |
| 1855 | 1853 |
| 1856 | 1854 |
| 1857 #undef __ | 1855 #undef __ |
| 1858 | 1856 |
| 1859 } } // namespace v8::internal | 1857 } } // namespace v8::internal |
| 1860 | 1858 |
| 1861 #endif // V8_TARGET_ARCH_ARM | 1859 #endif // V8_TARGET_ARCH_ARM |
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