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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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| 888 __ AllocateInNewSpace( | 888 __ AllocateInNewSpace( |
| 889 a0, | 889 a0, |
| 890 t5, | 890 t5, |
| 891 t6, | 891 t6, |
| 892 a2, | 892 a2, |
| 893 &undo_allocation, | 893 &undo_allocation, |
| 894 static_cast<AllocationFlags>(RESULT_CONTAINS_TOP | SIZE_IN_WORDS)); | 894 static_cast<AllocationFlags>(RESULT_CONTAINS_TOP | SIZE_IN_WORDS)); |
| 895 | 895 |
| 896 // Initialize the FixedArray. | 896 // Initialize the FixedArray. |
| 897 // a1: constructor | 897 // a1: constructor |
| 898 // a3: number of elements in properties array (un-tagged) | 898 // a3: number of elements in properties array (untagged) |
| 899 // t4: JSObject | 899 // t4: JSObject |
| 900 // t5: start of next object | 900 // t5: start of next object |
| 901 __ LoadRoot(t6, Heap::kFixedArrayMapRootIndex); | 901 __ LoadRoot(t6, Heap::kFixedArrayMapRootIndex); |
| 902 __ mov(a2, t5); | 902 __ mov(a2, t5); |
| 903 __ sw(t6, MemOperand(a2, JSObject::kMapOffset)); | 903 __ sw(t6, MemOperand(a2, JSObject::kMapOffset)); |
| 904 __ sll(a0, a3, kSmiTagSize); | 904 __ sll(a0, a3, kSmiTagSize); |
| 905 __ sw(a0, MemOperand(a2, FixedArray::kLengthOffset)); | 905 __ sw(a0, MemOperand(a2, FixedArray::kLengthOffset)); |
| 906 __ Addu(a2, a2, Operand(2 * kPointerSize)); | 906 __ Addu(a2, a2, Operand(2 * kPointerSize)); |
| 907 | 907 |
| 908 ASSERT_EQ(0 * kPointerSize, JSObject::kMapOffset); | 908 ASSERT_EQ(0 * kPointerSize, JSObject::kMapOffset); |
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| 1092 } | 1092 } |
| 1093 | 1093 |
| 1094 | 1094 |
| 1095 static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm, | 1095 static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm, |
| 1096 bool is_construct) { | 1096 bool is_construct) { |
| 1097 // Called from JSEntryStub::GenerateBody | 1097 // Called from JSEntryStub::GenerateBody |
| 1098 | 1098 |
| 1099 // ----------- S t a t e ------------- | 1099 // ----------- S t a t e ------------- |
| 1100 // -- a0: code entry | 1100 // -- a0: code entry |
| 1101 // -- a1: function | 1101 // -- a1: function |
| 1102 // -- a2: reveiver_pointer | 1102 // -- a2: receiver_pointer |
| 1103 // -- a3: argc | 1103 // -- a3: argc |
| 1104 // -- s0: argv | 1104 // -- s0: argv |
| 1105 // ----------------------------------- | 1105 // ----------------------------------- |
| 1106 | 1106 |
| 1107 // Clear the context before we push it when entering the JS frame. | 1107 // Clear the context before we push it when entering the JS frame. |
| 1108 __ mov(cp, zero_reg); | 1108 __ mov(cp, zero_reg); |
| 1109 | 1109 |
| 1110 // Enter an internal frame. | 1110 // Enter an internal frame. |
| 1111 { | 1111 { |
| 1112 FrameScope scope(masm, StackFrame::INTERNAL); | 1112 FrameScope scope(masm, StackFrame::INTERNAL); |
| 1113 | 1113 |
| 1114 // Set up the context from the function argument. | 1114 // Set up the context from the function argument. |
| 1115 __ lw(cp, FieldMemOperand(a1, JSFunction::kContextOffset)); | 1115 __ lw(cp, FieldMemOperand(a1, JSFunction::kContextOffset)); |
| 1116 | 1116 |
| 1117 __ InitializeRootRegister(); | 1117 __ InitializeRootRegister(); |
| 1118 | 1118 |
| 1119 // Push the function and the receiver onto the stack. | 1119 // Push the function and the receiver onto the stack. |
| 1120 __ Push(a1, a2); | 1120 __ Push(a1, a2); |
| 1121 | 1121 |
| 1122 // Copy arguments to the stack in a loop. | 1122 // Copy arguments to the stack in a loop. |
| 1123 // a3: argc | 1123 // a3: argc |
| 1124 // s0: argv, ie points to first arg | 1124 // s0: argv, i.e. points to first arg |
| 1125 Label loop, entry; | 1125 Label loop, entry; |
| 1126 __ sll(t0, a3, kPointerSizeLog2); | 1126 __ sll(t0, a3, kPointerSizeLog2); |
| 1127 __ addu(t2, s0, t0); | 1127 __ addu(t2, s0, t0); |
| 1128 __ b(&entry); | 1128 __ b(&entry); |
| 1129 __ nop(); // Branch delay slot nop. | 1129 __ nop(); // Branch delay slot nop. |
| 1130 // t2 points past last arg. | 1130 // t2 points past last arg. |
| 1131 __ bind(&loop); | 1131 __ bind(&loop); |
| 1132 __ lw(t0, MemOperand(s0)); // Read next parameter. | 1132 __ lw(t0, MemOperand(s0)); // Read next parameter. |
| 1133 __ addiu(s0, s0, kPointerSize); | 1133 __ addiu(s0, s0, kPointerSize); |
| 1134 __ lw(t0, MemOperand(t0)); // Dereference handle. | 1134 __ lw(t0, MemOperand(t0)); // Dereference handle. |
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| 1811 __ bind(&dont_adapt_arguments); | 1811 __ bind(&dont_adapt_arguments); |
| 1812 __ Jump(a3); | 1812 __ Jump(a3); |
| 1813 } | 1813 } |
| 1814 | 1814 |
| 1815 | 1815 |
| 1816 #undef __ | 1816 #undef __ |
| 1817 | 1817 |
| 1818 } } // namespace v8::internal | 1818 } } // namespace v8::internal |
| 1819 | 1819 |
| 1820 #endif // V8_TARGET_ARCH_MIPS | 1820 #endif // V8_TARGET_ARCH_MIPS |
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