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Issue 139503006: A64: Implement pre-aging support for A64. (Closed) Base URL: https://v8.googlecode.com/svn/branches/experimental/a64
Patch Set: Address comments. Created 6 years, 10 months ago
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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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832 // x0 - The address from which to resume execution. 832 // x0 - The address from which to resume execution.
833 // x1 - isolate 833 // x1 - isolate
834 // lr - The return address for the JSFunction itself. It has not yet been 834 // lr - The return address for the JSFunction itself. It has not yet been
835 // preserved on the stack because the frame setup code was replaced 835 // preserved on the stack because the frame setup code was replaced
836 // with a call to this stub, to handle code ageing. 836 // with a call to this stub, to handle code ageing.
837 { 837 {
838 FrameScope scope(masm, StackFrame::MANUAL); 838 FrameScope scope(masm, StackFrame::MANUAL);
839 __ Push(x0, x1, fp, lr); 839 __ Push(x0, x1, fp, lr);
840 __ Mov(x1, Operand(ExternalReference::isolate_address(masm->isolate()))); 840 __ Mov(x1, Operand(ExternalReference::isolate_address(masm->isolate())));
841 __ CallCFunction( 841 __ CallCFunction(
842 ExternalReference::get_make_code_young_function(masm->isolate()), 2); 842 ExternalReference::get_mark_code_as_executed_function(
843 masm->isolate()), 2);
843 __ Pop(lr, fp, x1, x0); 844 __ Pop(lr, fp, x1, x0);
844 845
845 // Perform prologue operations usually performed by the young code stub. 846 // Perform prologue operations usually performed by the young code stub.
846 __ EmitFrameSetupForCodeAgePatching(masm); 847 __ EmitFrameSetupForCodeAgePatching(masm);
847 } 848 }
848 849
849 // Jump to point after the code-age stub. 850 // Jump to point after the code-age stub.
850 __ Add(x0, x0, kCodeAgeSequenceSize); 851 __ Add(x0, x0, kCodeAgeSequenceSize);
851 __ Br(x0); 852 __ Br(x0);
852 } 853 }
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1472 __ Bind(&dont_adapt_arguments); 1473 __ Bind(&dont_adapt_arguments);
1473 __ Jump(x3); 1474 __ Jump(x3);
1474 } 1475 }
1475 1476
1476 1477
1477 #undef __ 1478 #undef __
1478 1479
1479 } } // namespace v8::internal 1480 } } // namespace v8::internal
1480 1481
1481 #endif // V8_TARGET_ARCH_ARM 1482 #endif // V8_TARGET_ARCH_ARM
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