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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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| 3508 __ ldr(ip, FieldMemOperand(r3, ExternalArray::kLengthOffset)); | 3508 __ ldr(ip, FieldMemOperand(r3, ExternalArray::kLengthOffset)); |
| 3509 __ cmp(key, ip); | 3509 __ cmp(key, ip); |
| 3510 // Unsigned comparison catches both negative and too-large values. | 3510 // Unsigned comparison catches both negative and too-large values. |
| 3511 __ b(hs, &miss_force_generic); | 3511 __ b(hs, &miss_force_generic); |
| 3512 | 3512 |
| 3513 __ ldr(r3, FieldMemOperand(r3, ExternalArray::kExternalPointerOffset)); | 3513 __ ldr(r3, FieldMemOperand(r3, ExternalArray::kExternalPointerOffset)); |
| 3514 // r3: base pointer of external storage | 3514 // r3: base pointer of external storage |
| 3515 | 3515 |
| 3516 // We are not untagging smi key and instead work with it | 3516 // We are not untagging smi key and instead work with it |
| 3517 // as if it was premultiplied by 2. | 3517 // as if it was premultiplied by 2. |
| 3518 ASSERT((kSmiTag == 0) && (kSmiTagSize == 1)); | 3518 STATIC_ASSERT((kSmiTag == 0) && (kSmiTagSize == 1)); |
| 3519 | 3519 |
| 3520 Register value = r2; | 3520 Register value = r2; |
| 3521 switch (elements_kind) { | 3521 switch (elements_kind) { |
| 3522 case JSObject::EXTERNAL_BYTE_ELEMENTS: | 3522 case JSObject::EXTERNAL_BYTE_ELEMENTS: |
| 3523 __ ldrsb(value, MemOperand(r3, key, LSR, 1)); | 3523 __ ldrsb(value, MemOperand(r3, key, LSR, 1)); |
| 3524 break; | 3524 break; |
| 3525 case JSObject::EXTERNAL_PIXEL_ELEMENTS: | 3525 case JSObject::EXTERNAL_PIXEL_ELEMENTS: |
| 3526 case JSObject::EXTERNAL_UNSIGNED_BYTE_ELEMENTS: | 3526 case JSObject::EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 3527 __ ldrb(value, MemOperand(r3, key, LSR, 1)); | 3527 __ ldrb(value, MemOperand(r3, key, LSR, 1)); |
| 3528 break; | 3528 break; |
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| 4158 __ ldr(r2, FieldMemOperand(r1, JSObject::kElementsOffset)); | 4158 __ ldr(r2, FieldMemOperand(r1, JSObject::kElementsOffset)); |
| 4159 __ AssertFastElements(r2); | 4159 __ AssertFastElements(r2); |
| 4160 | 4160 |
| 4161 // Check that the key is within bounds. | 4161 // Check that the key is within bounds. |
| 4162 __ ldr(r3, FieldMemOperand(r2, FixedArray::kLengthOffset)); | 4162 __ ldr(r3, FieldMemOperand(r2, FixedArray::kLengthOffset)); |
| 4163 __ cmp(r0, Operand(r3)); | 4163 __ cmp(r0, Operand(r3)); |
| 4164 __ b(hs, &miss_force_generic); | 4164 __ b(hs, &miss_force_generic); |
| 4165 | 4165 |
| 4166 // Load the result and make sure it's not the hole. | 4166 // Load the result and make sure it's not the hole. |
| 4167 __ add(r3, r2, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); | 4167 __ add(r3, r2, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 4168 ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); | 4168 STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
| 4169 __ ldr(r4, | 4169 __ ldr(r4, |
| 4170 MemOperand(r3, r0, LSL, kPointerSizeLog2 - kSmiTagSize)); | 4170 MemOperand(r3, r0, LSL, kPointerSizeLog2 - kSmiTagSize)); |
| 4171 __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); | 4171 __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
| 4172 __ cmp(r4, ip); | 4172 __ cmp(r4, ip); |
| 4173 __ b(eq, &miss_force_generic); | 4173 __ b(eq, &miss_force_generic); |
| 4174 __ mov(r0, r4); | 4174 __ mov(r0, r4); |
| 4175 __ Ret(); | 4175 __ Ret(); |
| 4176 | 4176 |
| 4177 __ bind(&miss_force_generic); | 4177 __ bind(&miss_force_generic); |
| 4178 Code* stub = masm->isolate()->builtins()->builtin( | 4178 Code* stub = masm->isolate()->builtins()->builtin( |
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| 4290 __ ldr(scratch, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); | 4290 __ ldr(scratch, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 4291 } else { | 4291 } else { |
| 4292 __ ldr(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); | 4292 __ ldr(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 4293 } | 4293 } |
| 4294 // Compare smis. | 4294 // Compare smis. |
| 4295 __ cmp(key_reg, scratch); | 4295 __ cmp(key_reg, scratch); |
| 4296 __ b(hs, &miss_force_generic); | 4296 __ b(hs, &miss_force_generic); |
| 4297 | 4297 |
| 4298 __ add(scratch, | 4298 __ add(scratch, |
| 4299 elements_reg, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); | 4299 elements_reg, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 4300 ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); | 4300 STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
| 4301 __ add(scratch, | 4301 __ add(scratch, |
| 4302 scratch, | 4302 scratch, |
| 4303 Operand(key_reg, LSL, kPointerSizeLog2 - kSmiTagSize)); | 4303 Operand(key_reg, LSL, kPointerSizeLog2 - kSmiTagSize)); |
| 4304 __ str(value_reg, MemOperand(scratch)); | 4304 __ str(value_reg, MemOperand(scratch)); |
| 4305 __ mov(receiver_reg, value_reg); | 4305 __ mov(receiver_reg, value_reg); |
| 4306 __ RecordWrite(elements_reg, // Object. | 4306 __ RecordWrite(elements_reg, // Object. |
| 4307 scratch, // Address. | 4307 scratch, // Address. |
| 4308 receiver_reg, // Value. | 4308 receiver_reg, // Value. |
| 4309 kLRHasNotBeenSaved, | 4309 kLRHasNotBeenSaved, |
| 4310 kDontSaveFPRegs); | 4310 kDontSaveFPRegs); |
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| 4444 masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric(); | 4444 masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric(); |
| 4445 __ Jump(ic, RelocInfo::CODE_TARGET); | 4445 __ Jump(ic, RelocInfo::CODE_TARGET); |
| 4446 } | 4446 } |
| 4447 | 4447 |
| 4448 | 4448 |
| 4449 #undef __ | 4449 #undef __ |
| 4450 | 4450 |
| 4451 } } // namespace v8::internal | 4451 } } // namespace v8::internal |
| 4452 | 4452 |
| 4453 #endif // V8_TARGET_ARCH_ARM | 4453 #endif // V8_TARGET_ARCH_ARM |
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