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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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| 2753 __ ldr(result, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); | 2753 __ ldr(result, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); |
| 2754 __ ldr(result, | 2754 __ ldr(result, |
| 2755 MemOperand(result, ArgumentsAdaptorFrameConstants::kLengthOffset)); | 2755 MemOperand(result, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 2756 __ SmiUntag(result); | 2756 __ SmiUntag(result); |
| 2757 | 2757 |
| 2758 // Argument length is in result register. | 2758 // Argument length is in result register. |
| 2759 __ bind(&done); | 2759 __ bind(&done); |
| 2760 } | 2760 } |
| 2761 | 2761 |
| 2762 | 2762 |
| 2763 void LCodeGen::DoApplyArguments(LApplyArguments* instr) { | 2763 void LCodeGen::DoWrapReceiver(LWrapReceiver* instr) { |
| 2764 Register receiver = ToRegister(instr->receiver()); | 2764 Register receiver = ToRegister(instr->receiver()); |
| 2765 Register function = ToRegister(instr->function()); | 2765 Register function = ToRegister(instr->function()); |
| 2766 Register length = ToRegister(instr->length()); | |
| 2767 Register elements = ToRegister(instr->elements()); | |
| 2768 Register scratch = scratch0(); | 2766 Register scratch = scratch0(); |
| 2769 ASSERT(receiver.is(r0)); // Used for parameter count. | |
| 2770 ASSERT(function.is(r1)); // Required by InvokeFunction. | |
| 2771 ASSERT(ToRegister(instr->result()).is(r0)); | |
| 2772 | 2767 |
| 2773 // If the receiver is null or undefined, we have to pass the global | 2768 // If the receiver is null or undefined, we have to pass the global |
| 2774 // object as a receiver to normal functions. Values have to be | 2769 // object as a receiver to normal functions. Values have to be |
| 2775 // passed unchanged to builtins and strict-mode functions. | 2770 // passed unchanged to builtins and strict-mode functions. |
| 2776 Label global_object, receiver_ok; | 2771 Label global_object, receiver_ok; |
| 2777 | 2772 |
| 2778 // Do not transform the receiver to object for strict mode | 2773 // Do not transform the receiver to object for strict mode |
| 2779 // functions. | 2774 // functions. |
| 2780 __ ldr(scratch, | 2775 __ ldr(scratch, |
| 2781 FieldMemOperand(function, JSFunction::kSharedFunctionInfoOffset)); | 2776 FieldMemOperand(function, JSFunction::kSharedFunctionInfoOffset)); |
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| 2802 DeoptimizeIf(eq, instr->environment()); | 2797 DeoptimizeIf(eq, instr->environment()); |
| 2803 __ CompareObjectType(receiver, scratch, scratch, FIRST_SPEC_OBJECT_TYPE); | 2798 __ CompareObjectType(receiver, scratch, scratch, FIRST_SPEC_OBJECT_TYPE); |
| 2804 DeoptimizeIf(lt, instr->environment()); | 2799 DeoptimizeIf(lt, instr->environment()); |
| 2805 __ jmp(&receiver_ok); | 2800 __ jmp(&receiver_ok); |
| 2806 | 2801 |
| 2807 __ bind(&global_object); | 2802 __ bind(&global_object); |
| 2808 __ ldr(receiver, GlobalObjectOperand()); | 2803 __ ldr(receiver, GlobalObjectOperand()); |
| 2809 __ ldr(receiver, | 2804 __ ldr(receiver, |
| 2810 FieldMemOperand(receiver, JSGlobalObject::kGlobalReceiverOffset)); | 2805 FieldMemOperand(receiver, JSGlobalObject::kGlobalReceiverOffset)); |
| 2811 __ bind(&receiver_ok); | 2806 __ bind(&receiver_ok); |
| 2807 } |
| 2808 |
| 2809 |
| 2810 void LCodeGen::DoApplyArguments(LApplyArguments* instr) { |
| 2811 Register receiver = ToRegister(instr->receiver()); |
| 2812 Register function = ToRegister(instr->function()); |
| 2813 Register length = ToRegister(instr->length()); |
| 2814 Register elements = ToRegister(instr->elements()); |
| 2815 Register scratch = scratch0(); |
| 2816 ASSERT(receiver.is(r0)); // Used for parameter count. |
| 2817 ASSERT(function.is(r1)); // Required by InvokeFunction. |
| 2818 ASSERT(ToRegister(instr->result()).is(r0)); |
| 2812 | 2819 |
| 2813 // Copy the arguments to this function possibly from the | 2820 // Copy the arguments to this function possibly from the |
| 2814 // adaptor frame below it. | 2821 // adaptor frame below it. |
| 2815 const uint32_t kArgumentsLimit = 1 * KB; | 2822 const uint32_t kArgumentsLimit = 1 * KB; |
| 2816 __ cmp(length, Operand(kArgumentsLimit)); | 2823 __ cmp(length, Operand(kArgumentsLimit)); |
| 2817 DeoptimizeIf(hi, instr->environment()); | 2824 DeoptimizeIf(hi, instr->environment()); |
| 2818 | 2825 |
| 2819 // Push the receiver and use the register to keep the original | 2826 // Push the receiver and use the register to keep the original |
| 2820 // number of arguments. | 2827 // number of arguments. |
| 2821 __ push(receiver); | 2828 __ push(receiver); |
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| 5066 __ sub(scratch, result, Operand(index, LSL, kPointerSizeLog2 - kSmiTagSize)); | 5073 __ sub(scratch, result, Operand(index, LSL, kPointerSizeLog2 - kSmiTagSize)); |
| 5067 __ ldr(result, FieldMemOperand(scratch, | 5074 __ ldr(result, FieldMemOperand(scratch, |
| 5068 FixedArray::kHeaderSize - kPointerSize)); | 5075 FixedArray::kHeaderSize - kPointerSize)); |
| 5069 __ bind(&done); | 5076 __ bind(&done); |
| 5070 } | 5077 } |
| 5071 | 5078 |
| 5072 | 5079 |
| 5073 #undef __ | 5080 #undef __ |
| 5074 | 5081 |
| 5075 } } // namespace v8::internal | 5082 } } // namespace v8::internal |
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