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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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3490 __ ldr(ip, FieldMemOperand(r3, ExternalArray::kLengthOffset)); | 3490 __ ldr(ip, FieldMemOperand(r3, ExternalArray::kLengthOffset)); |
3491 __ cmp(key, ip); | 3491 __ cmp(key, ip); |
3492 // Unsigned comparison catches both negative and too-large values. | 3492 // Unsigned comparison catches both negative and too-large values. |
3493 __ b(hs, &miss_force_generic); | 3493 __ b(hs, &miss_force_generic); |
3494 | 3494 |
3495 __ ldr(r3, FieldMemOperand(r3, ExternalArray::kExternalPointerOffset)); | 3495 __ ldr(r3, FieldMemOperand(r3, ExternalArray::kExternalPointerOffset)); |
3496 // r3: base pointer of external storage | 3496 // r3: base pointer of external storage |
3497 | 3497 |
3498 // We are not untagging smi key and instead work with it | 3498 // We are not untagging smi key and instead work with it |
3499 // as if it was premultiplied by 2. | 3499 // as if it was premultiplied by 2. |
3500 ASSERT((kSmiTag == 0) && (kSmiTagSize == 1)); | 3500 STATIC_ASSERT((kSmiTag == 0) && (kSmiTagSize == 1)); |
3501 | 3501 |
3502 Register value = r2; | 3502 Register value = r2; |
3503 switch (elements_kind) { | 3503 switch (elements_kind) { |
3504 case JSObject::EXTERNAL_BYTE_ELEMENTS: | 3504 case JSObject::EXTERNAL_BYTE_ELEMENTS: |
3505 __ ldrsb(value, MemOperand(r3, key, LSR, 1)); | 3505 __ ldrsb(value, MemOperand(r3, key, LSR, 1)); |
3506 break; | 3506 break; |
3507 case JSObject::EXTERNAL_PIXEL_ELEMENTS: | 3507 case JSObject::EXTERNAL_PIXEL_ELEMENTS: |
3508 case JSObject::EXTERNAL_UNSIGNED_BYTE_ELEMENTS: | 3508 case JSObject::EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
3509 __ ldrb(value, MemOperand(r3, key, LSR, 1)); | 3509 __ ldrb(value, MemOperand(r3, key, LSR, 1)); |
3510 break; | 3510 break; |
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4140 __ ldr(r2, FieldMemOperand(r1, JSObject::kElementsOffset)); | 4140 __ ldr(r2, FieldMemOperand(r1, JSObject::kElementsOffset)); |
4141 __ AssertFastElements(r2); | 4141 __ AssertFastElements(r2); |
4142 | 4142 |
4143 // Check that the key is within bounds. | 4143 // Check that the key is within bounds. |
4144 __ ldr(r3, FieldMemOperand(r2, FixedArray::kLengthOffset)); | 4144 __ ldr(r3, FieldMemOperand(r2, FixedArray::kLengthOffset)); |
4145 __ cmp(r0, Operand(r3)); | 4145 __ cmp(r0, Operand(r3)); |
4146 __ b(hs, &miss_force_generic); | 4146 __ b(hs, &miss_force_generic); |
4147 | 4147 |
4148 // Load the result and make sure it's not the hole. | 4148 // Load the result and make sure it's not the hole. |
4149 __ add(r3, r2, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); | 4149 __ add(r3, r2, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
4150 ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); | 4150 STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
4151 __ ldr(r4, | 4151 __ ldr(r4, |
4152 MemOperand(r3, r0, LSL, kPointerSizeLog2 - kSmiTagSize)); | 4152 MemOperand(r3, r0, LSL, kPointerSizeLog2 - kSmiTagSize)); |
4153 __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); | 4153 __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
4154 __ cmp(r4, ip); | 4154 __ cmp(r4, ip); |
4155 __ b(eq, &miss_force_generic); | 4155 __ b(eq, &miss_force_generic); |
4156 __ mov(r0, r4); | 4156 __ mov(r0, r4); |
4157 __ Ret(); | 4157 __ Ret(); |
4158 | 4158 |
4159 __ bind(&miss_force_generic); | 4159 __ bind(&miss_force_generic); |
4160 Code* stub = masm->isolate()->builtins()->builtin( | 4160 Code* stub = masm->isolate()->builtins()->builtin( |
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4272 __ ldr(scratch, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); | 4272 __ ldr(scratch, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
4273 } else { | 4273 } else { |
4274 __ ldr(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); | 4274 __ ldr(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
4275 } | 4275 } |
4276 // Compare smis. | 4276 // Compare smis. |
4277 __ cmp(key_reg, scratch); | 4277 __ cmp(key_reg, scratch); |
4278 __ b(hs, &miss_force_generic); | 4278 __ b(hs, &miss_force_generic); |
4279 | 4279 |
4280 __ add(scratch, | 4280 __ add(scratch, |
4281 elements_reg, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); | 4281 elements_reg, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
4282 ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); | 4282 STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
4283 __ str(value_reg, | 4283 __ str(value_reg, |
4284 MemOperand(scratch, key_reg, LSL, kPointerSizeLog2 - kSmiTagSize)); | 4284 MemOperand(scratch, key_reg, LSL, kPointerSizeLog2 - kSmiTagSize)); |
4285 __ RecordWrite(scratch, | 4285 __ RecordWrite(scratch, |
4286 Operand(key_reg, LSL, kPointerSizeLog2 - kSmiTagSize), | 4286 Operand(key_reg, LSL, kPointerSizeLog2 - kSmiTagSize), |
4287 receiver_reg , elements_reg); | 4287 receiver_reg , elements_reg); |
4288 | 4288 |
4289 // value_reg (r0) is preserved. | 4289 // value_reg (r0) is preserved. |
4290 // Done. | 4290 // Done. |
4291 __ Ret(); | 4291 __ Ret(); |
4292 | 4292 |
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4421 masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric(); | 4421 masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric(); |
4422 __ Jump(ic, RelocInfo::CODE_TARGET); | 4422 __ Jump(ic, RelocInfo::CODE_TARGET); |
4423 } | 4423 } |
4424 | 4424 |
4425 | 4425 |
4426 #undef __ | 4426 #undef __ |
4427 | 4427 |
4428 } } // namespace v8::internal | 4428 } } // namespace v8::internal |
4429 | 4429 |
4430 #endif // V8_TARGET_ARCH_ARM | 4430 #endif // V8_TARGET_ARCH_ARM |
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