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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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| 1276 FrameScope scope(masm, StackFrame::INTERNAL); | 1276 FrameScope scope(masm, StackFrame::INTERNAL); |
| 1277 __ CallRuntime(Runtime::kNotifyOSR, 0); | 1277 __ CallRuntime(Runtime::kNotifyOSR, 0); |
| 1278 } | 1278 } |
| 1279 __ ldm(ia_w, sp, kJSCallerSaved | kCalleeSaved | lr.bit() | fp.bit()); | 1279 __ ldm(ia_w, sp, kJSCallerSaved | kCalleeSaved | lr.bit() | fp.bit()); |
| 1280 __ Ret(); | 1280 __ Ret(); |
| 1281 } | 1281 } |
| 1282 | 1282 |
| 1283 | 1283 |
| 1284 void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { | 1284 void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { |
| 1285 CpuFeatures::TryForceFeatureScope scope(VFP3); | 1285 CpuFeatures::TryForceFeatureScope scope(VFP3); |
| 1286 ASSERT(CPU::SupportsCrankshaft()); | 1286 if (!CPU::SupportsCrankshaft()) { |
| 1287 __ Abort("Unreachable code: Cannot optimize without VFP3 support."); |
| 1288 return; |
| 1289 } |
| 1287 | 1290 |
| 1288 // Lookup the function in the JavaScript frame and push it as an | 1291 // Lookup the function in the JavaScript frame and push it as an |
| 1289 // argument to the on-stack replacement function. | 1292 // argument to the on-stack replacement function. |
| 1290 __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); | 1293 __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
| 1291 { | 1294 { |
| 1292 FrameScope scope(masm, StackFrame::INTERNAL); | 1295 FrameScope scope(masm, StackFrame::INTERNAL); |
| 1293 __ push(r0); | 1296 __ push(r0); |
| 1294 __ CallRuntime(Runtime::kCompileForOnStackReplacement, 1); | 1297 __ CallRuntime(Runtime::kCompileForOnStackReplacement, 1); |
| 1295 } | 1298 } |
| 1296 | 1299 |
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| 1794 __ bind(&dont_adapt_arguments); | 1797 __ bind(&dont_adapt_arguments); |
| 1795 __ Jump(r3); | 1798 __ Jump(r3); |
| 1796 } | 1799 } |
| 1797 | 1800 |
| 1798 | 1801 |
| 1799 #undef __ | 1802 #undef __ |
| 1800 | 1803 |
| 1801 } } // namespace v8::internal | 1804 } } // namespace v8::internal |
| 1802 | 1805 |
| 1803 #endif // V8_TARGET_ARCH_ARM | 1806 #endif // V8_TARGET_ARCH_ARM |
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