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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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| 1648 ASSERT(!obj.is(ip)); | 1648 ASSERT(!obj.is(ip)); |
| 1649 LoadRoot(ip, index); | 1649 LoadRoot(ip, index); |
| 1650 cmp(obj, ip); | 1650 cmp(obj, ip); |
| 1651 } | 1651 } |
| 1652 | 1652 |
| 1653 | 1653 |
| 1654 void MacroAssembler::CheckMap(Register obj, | 1654 void MacroAssembler::CheckMap(Register obj, |
| 1655 Register scratch, | 1655 Register scratch, |
| 1656 Handle<Map> map, | 1656 Handle<Map> map, |
| 1657 Label* fail, | 1657 Label* fail, |
| 1658 bool is_heap_object) { | 1658 SmiCheckType smi_check_type) { |
| 1659 if (!is_heap_object) { | 1659 if (smi_check_type == DO_SMI_CHECK) { |
| 1660 JumpIfSmi(obj, fail); | 1660 JumpIfSmi(obj, fail); |
| 1661 } | 1661 } |
| 1662 ldr(scratch, FieldMemOperand(obj, HeapObject::kMapOffset)); | 1662 ldr(scratch, FieldMemOperand(obj, HeapObject::kMapOffset)); |
| 1663 mov(ip, Operand(map)); | 1663 mov(ip, Operand(map)); |
| 1664 cmp(scratch, ip); | 1664 cmp(scratch, ip); |
| 1665 b(ne, fail); | 1665 b(ne, fail); |
| 1666 } | 1666 } |
| 1667 | 1667 |
| 1668 | 1668 |
| 1669 void MacroAssembler::CheckMap(Register obj, | 1669 void MacroAssembler::CheckMap(Register obj, |
| 1670 Register scratch, | 1670 Register scratch, |
| 1671 Heap::RootListIndex index, | 1671 Heap::RootListIndex index, |
| 1672 Label* fail, | 1672 Label* fail, |
| 1673 bool is_heap_object) { | 1673 SmiCheckType smi_check_type) { |
| 1674 if (!is_heap_object) { | 1674 if (smi_check_type == DO_SMI_CHECK) { |
| 1675 JumpIfSmi(obj, fail); | 1675 JumpIfSmi(obj, fail); |
| 1676 } | 1676 } |
| 1677 ldr(scratch, FieldMemOperand(obj, HeapObject::kMapOffset)); | 1677 ldr(scratch, FieldMemOperand(obj, HeapObject::kMapOffset)); |
| 1678 LoadRoot(ip, index); | 1678 LoadRoot(ip, index); |
| 1679 cmp(scratch, ip); | 1679 cmp(scratch, ip); |
| 1680 b(ne, fail); | 1680 b(ne, fail); |
| 1681 } | 1681 } |
| 1682 | 1682 |
| 1683 | 1683 |
| 1684 void MacroAssembler::TryGetFunctionPrototype(Register function, | 1684 void MacroAssembler::TryGetFunctionPrototype(Register function, |
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| 2514 } | 2514 } |
| 2515 | 2515 |
| 2516 | 2516 |
| 2517 void MacroAssembler::LoadGlobalFunctionInitialMap(Register function, | 2517 void MacroAssembler::LoadGlobalFunctionInitialMap(Register function, |
| 2518 Register map, | 2518 Register map, |
| 2519 Register scratch) { | 2519 Register scratch) { |
| 2520 // Load the initial map. The global functions all have initial maps. | 2520 // Load the initial map. The global functions all have initial maps. |
| 2521 ldr(map, FieldMemOperand(function, JSFunction::kPrototypeOrInitialMapOffset)); | 2521 ldr(map, FieldMemOperand(function, JSFunction::kPrototypeOrInitialMapOffset)); |
| 2522 if (emit_debug_code()) { | 2522 if (emit_debug_code()) { |
| 2523 Label ok, fail; | 2523 Label ok, fail; |
| 2524 CheckMap(map, scratch, Heap::kMetaMapRootIndex, &fail, false); | 2524 CheckMap(map, scratch, Heap::kMetaMapRootIndex, &fail, DO_SMI_CHECK); |
| 2525 b(&ok); | 2525 b(&ok); |
| 2526 bind(&fail); | 2526 bind(&fail); |
| 2527 Abort("Global functions must have initial map"); | 2527 Abort("Global functions must have initial map"); |
| 2528 bind(&ok); | 2528 bind(&ok); |
| 2529 } | 2529 } |
| 2530 } | 2530 } |
| 2531 | 2531 |
| 2532 | 2532 |
| 2533 void MacroAssembler::JumpIfNotPowerOfTwoOrZero( | 2533 void MacroAssembler::JumpIfNotPowerOfTwoOrZero( |
| 2534 Register reg, | 2534 Register reg, |
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| 3101 void CodePatcher::EmitCondition(Condition cond) { | 3101 void CodePatcher::EmitCondition(Condition cond) { |
| 3102 Instr instr = Assembler::instr_at(masm_.pc_); | 3102 Instr instr = Assembler::instr_at(masm_.pc_); |
| 3103 instr = (instr & ~kCondMask) | cond; | 3103 instr = (instr & ~kCondMask) | cond; |
| 3104 masm_.emit(instr); | 3104 masm_.emit(instr); |
| 3105 } | 3105 } |
| 3106 | 3106 |
| 3107 | 3107 |
| 3108 } } // namespace v8::internal | 3108 } } // namespace v8::internal |
| 3109 | 3109 |
| 3110 #endif // V8_TARGET_ARCH_ARM | 3110 #endif // V8_TARGET_ARCH_ARM |
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