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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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1370 { | 1370 { |
1371 FrameScope scope(masm, StackFrame::INTERNAL); | 1371 FrameScope scope(masm, StackFrame::INTERNAL); |
1372 __ CallRuntime(Runtime::kNotifyOSR, 0); | 1372 __ CallRuntime(Runtime::kNotifyOSR, 0); |
1373 } | 1373 } |
1374 __ ldm(ia_w, sp, kJSCallerSaved | kCalleeSaved | lr.bit() | fp.bit()); | 1374 __ ldm(ia_w, sp, kJSCallerSaved | kCalleeSaved | lr.bit() | fp.bit()); |
1375 __ Ret(); | 1375 __ Ret(); |
1376 } | 1376 } |
1377 | 1377 |
1378 | 1378 |
1379 void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { | 1379 void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { |
1380 CpuFeatures::TryForceFeatureScope scope(VFP3); | |
1381 if (!CPU::SupportsCrankshaft()) { | |
1382 __ Abort("Unreachable code: Cannot optimize without VFP3 support."); | |
1383 return; | |
1384 } | |
1385 | |
1386 // Lookup the function in the JavaScript frame and push it as an | 1380 // Lookup the function in the JavaScript frame and push it as an |
1387 // argument to the on-stack replacement function. | 1381 // argument to the on-stack replacement function. |
1388 __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); | 1382 __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
1389 { | 1383 { |
1390 FrameScope scope(masm, StackFrame::INTERNAL); | 1384 FrameScope scope(masm, StackFrame::INTERNAL); |
1391 __ push(r0); | 1385 __ push(r0); |
1392 __ CallRuntime(Runtime::kCompileForOnStackReplacement, 1); | 1386 __ CallRuntime(Runtime::kCompileForOnStackReplacement, 1); |
1393 } | 1387 } |
1394 | 1388 |
1395 // If the result was -1 it means that we couldn't optimize the | 1389 // If the result was -1 it means that we couldn't optimize the |
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1892 __ bind(&dont_adapt_arguments); | 1886 __ bind(&dont_adapt_arguments); |
1893 __ Jump(r3); | 1887 __ Jump(r3); |
1894 } | 1888 } |
1895 | 1889 |
1896 | 1890 |
1897 #undef __ | 1891 #undef __ |
1898 | 1892 |
1899 } } // namespace v8::internal | 1893 } } // namespace v8::internal |
1900 | 1894 |
1901 #endif // V8_TARGET_ARCH_ARM | 1895 #endif // V8_TARGET_ARCH_ARM |
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