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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 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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157 Register dst, Register src, | 157 Register dst, Register src, |
158 JSObject* holder, int index) { | 158 JSObject* holder, int index) { |
159 // Adjust for the number of properties stored in the holder. | 159 // Adjust for the number of properties stored in the holder. |
160 index -= holder->map()->inobject_properties(); | 160 index -= holder->map()->inobject_properties(); |
161 if (index < 0) { | 161 if (index < 0) { |
162 // Get the property straight out of the holder. | 162 // Get the property straight out of the holder. |
163 int offset = holder->map()->instance_size() + (index * kPointerSize); | 163 int offset = holder->map()->instance_size() + (index * kPointerSize); |
164 __ ldr(dst, FieldMemOperand(src, offset)); | 164 __ ldr(dst, FieldMemOperand(src, offset)); |
165 } else { | 165 } else { |
166 // Calculate the offset into the properties array. | 166 // Calculate the offset into the properties array. |
167 int offset = index * kPointerSize + Array::kHeaderSize; | 167 int offset = index * kPointerSize + FixedArray::kHeaderSize; |
168 __ ldr(dst, FieldMemOperand(src, JSObject::kPropertiesOffset)); | 168 __ ldr(dst, FieldMemOperand(src, JSObject::kPropertiesOffset)); |
169 __ ldr(dst, FieldMemOperand(dst, offset)); | 169 __ ldr(dst, FieldMemOperand(dst, offset)); |
170 } | 170 } |
171 } | 171 } |
172 | 172 |
173 | 173 |
174 void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm, | 174 void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm, |
175 Register receiver, | 175 Register receiver, |
176 Register scratch, | 176 Register scratch, |
177 Label* miss_label) { | 177 Label* miss_label) { |
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323 // Skip updating write barrier if storing a smi. | 323 // Skip updating write barrier if storing a smi. |
324 __ tst(r0, Operand(kSmiTagMask)); | 324 __ tst(r0, Operand(kSmiTagMask)); |
325 __ b(eq, &exit); | 325 __ b(eq, &exit); |
326 | 326 |
327 // Update the write barrier for the array address. | 327 // Update the write barrier for the array address. |
328 // Pass the value being stored in the now unused name_reg. | 328 // Pass the value being stored in the now unused name_reg. |
329 __ mov(name_reg, Operand(offset)); | 329 __ mov(name_reg, Operand(offset)); |
330 __ RecordWrite(receiver_reg, name_reg, scratch); | 330 __ RecordWrite(receiver_reg, name_reg, scratch); |
331 } else { | 331 } else { |
332 // Write to the properties array. | 332 // Write to the properties array. |
333 int offset = index * kPointerSize + Array::kHeaderSize; | 333 int offset = index * kPointerSize + FixedArray::kHeaderSize; |
334 // Get the properties array | 334 // Get the properties array |
335 __ ldr(scratch, FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); | 335 __ ldr(scratch, FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); |
336 __ str(r0, FieldMemOperand(scratch, offset)); | 336 __ str(r0, FieldMemOperand(scratch, offset)); |
337 | 337 |
338 // Skip updating write barrier if storing a smi. | 338 // Skip updating write barrier if storing a smi. |
339 __ tst(r0, Operand(kSmiTagMask)); | 339 __ tst(r0, Operand(kSmiTagMask)); |
340 __ b(eq, &exit); | 340 __ b(eq, &exit); |
341 | 341 |
342 // Update the write barrier for the array address. | 342 // Update the write barrier for the array address. |
343 // Ok to clobber receiver_reg and name_reg, since we return. | 343 // Ok to clobber receiver_reg and name_reg, since we return. |
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1328 __ Jump(ic, RelocInfo::CODE_TARGET); | 1328 __ Jump(ic, RelocInfo::CODE_TARGET); |
1329 | 1329 |
1330 // Return the generated code. | 1330 // Return the generated code. |
1331 return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name); | 1331 return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name); |
1332 } | 1332 } |
1333 | 1333 |
1334 | 1334 |
1335 #undef __ | 1335 #undef __ |
1336 | 1336 |
1337 } } // namespace v8::internal | 1337 } } // namespace v8::internal |
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