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Issue 174522: Use stack frame marker constants to mark arguments adaptor frame. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 11 years, 4 months ago
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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. 1 // Copyright 2006-2008 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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566 566
567 // Tear down the internal frame and remove function, receiver and args. 567 // Tear down the internal frame and remove function, receiver and args.
568 __ LeaveInternalFrame(); 568 __ LeaveInternalFrame();
569 __ add(sp, sp, Operand(3 * kPointerSize)); 569 __ add(sp, sp, Operand(3 * kPointerSize));
570 __ Jump(lr); 570 __ Jump(lr);
571 } 571 }
572 572
573 573
574 static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) { 574 static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) {
575 __ mov(r0, Operand(r0, LSL, kSmiTagSize)); 575 __ mov(r0, Operand(r0, LSL, kSmiTagSize));
576 __ mov(r4, Operand(ArgumentsAdaptorFrame::SENTINEL)); 576 __ mov(r4, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
577 __ stm(db_w, sp, r0.bit() | r1.bit() | r4.bit() | fp.bit() | lr.bit()); 577 __ stm(db_w, sp, r0.bit() | r1.bit() | r4.bit() | fp.bit() | lr.bit());
578 __ add(fp, sp, Operand(3 * kPointerSize)); 578 __ add(fp, sp, Operand(3 * kPointerSize));
579 } 579 }
580 580
581 581
582 static void LeaveArgumentsAdaptorFrame(MacroAssembler* masm) { 582 static void LeaveArgumentsAdaptorFrame(MacroAssembler* masm) {
583 // ----------- S t a t e ------------- 583 // ----------- S t a t e -------------
584 // -- r0 : result being passed through 584 // -- r0 : result being passed through
585 // ----------------------------------- 585 // -----------------------------------
586 // Get the number of arguments passed (as a smi), tear down the frame and 586 // Get the number of arguments passed (as a smi), tear down the frame and
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693 // Dont adapt arguments. 693 // Dont adapt arguments.
694 // ------------------------------------------- 694 // -------------------------------------------
695 __ bind(&dont_adapt_arguments); 695 __ bind(&dont_adapt_arguments);
696 __ Jump(r3); 696 __ Jump(r3);
697 } 697 }
698 698
699 699
700 #undef __ 700 #undef __
701 701
702 } } // namespace v8::internal 702 } } // namespace v8::internal
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