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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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677 // Push the function and the receiver onto the stack. | 677 // Push the function and the receiver onto the stack. |
678 __ Push(function, receiver); | 678 __ Push(function, receiver); |
679 | 679 |
680 // Copy arguments to the stack in a loop, in reverse order. | 680 // Copy arguments to the stack in a loop, in reverse order. |
681 // x3: argc. | 681 // x3: argc. |
682 // x4: argv. | 682 // x4: argv. |
683 Label loop, entry; | 683 Label loop, entry; |
684 // Compute the copy end address. | 684 // Compute the copy end address. |
685 __ Add(x10, argv, Operand(argc, LSL, kPointerSizeLog2)); | 685 __ Add(x10, argv, Operand(argc, LSL, kPointerSizeLog2)); |
686 | 686 |
687 // TODO(all): This can potentially be optimized with ldp/stp to speed up | |
688 // arguments passing from C++ to JS. | |
689 __ B(&entry); | 687 __ B(&entry); |
690 __ Bind(&loop); | 688 __ Bind(&loop); |
691 __ Ldr(x11, MemOperand(argv, kPointerSize, PostIndex)); | 689 __ Ldr(x11, MemOperand(argv, kPointerSize, PostIndex)); |
692 __ Ldr(x12, MemOperand(x11)); // Dereference the handle. | 690 __ Ldr(x12, MemOperand(x11)); // Dereference the handle. |
693 __ Push(x12); // Push the argument. | 691 __ Push(x12); // Push the argument. |
694 __ Bind(&entry); | 692 __ Bind(&entry); |
695 __ Cmp(x10, argv); | 693 __ Cmp(x10, argv); |
696 __ B(ne, &loop); | 694 __ B(ne, &loop); |
697 | 695 |
698 // Initialize all JavaScript callee-saved registers, since they will be seen | 696 // Initialize all JavaScript callee-saved registers, since they will be seen |
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1474 __ Bind(&dont_adapt_arguments); | 1472 __ Bind(&dont_adapt_arguments); |
1475 __ Jump(x3); | 1473 __ Jump(x3); |
1476 } | 1474 } |
1477 | 1475 |
1478 | 1476 |
1479 #undef __ | 1477 #undef __ |
1480 | 1478 |
1481 } } // namespace v8::internal | 1479 } } // namespace v8::internal |
1482 | 1480 |
1483 #endif // V8_TARGET_ARCH_ARM | 1481 #endif // V8_TARGET_ARCH_ARM |
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