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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/crankshaft/arm/lithium-codegen-arm.h" | 5 #include "src/crankshaft/arm/lithium-codegen-arm.h" |
6 | 6 |
7 #include "src/base/bits.h" | 7 #include "src/base/bits.h" |
8 #include "src/code-factory.h" | 8 #include "src/code-factory.h" |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/crankshaft/arm/lithium-gap-resolver-arm.h" | 10 #include "src/crankshaft/arm/lithium-gap-resolver-arm.h" |
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2519 // Deoptimize if the object needs to be access checked. | 2519 // Deoptimize if the object needs to be access checked. |
2520 __ ldrb(object_instance_type, | 2520 __ ldrb(object_instance_type, |
2521 FieldMemOperand(object_map, Map::kBitFieldOffset)); | 2521 FieldMemOperand(object_map, Map::kBitFieldOffset)); |
2522 __ tst(object_instance_type, Operand(1 << Map::kIsAccessCheckNeeded)); | 2522 __ tst(object_instance_type, Operand(1 << Map::kIsAccessCheckNeeded)); |
2523 DeoptimizeIf(ne, instr, Deoptimizer::kAccessCheck); | 2523 DeoptimizeIf(ne, instr, Deoptimizer::kAccessCheck); |
2524 // Deoptimize for proxies. | 2524 // Deoptimize for proxies. |
2525 __ CompareInstanceType(object_map, object_instance_type, JS_PROXY_TYPE); | 2525 __ CompareInstanceType(object_map, object_instance_type, JS_PROXY_TYPE); |
2526 DeoptimizeIf(eq, instr, Deoptimizer::kProxy); | 2526 DeoptimizeIf(eq, instr, Deoptimizer::kProxy); |
2527 | 2527 |
2528 __ ldr(object_prototype, FieldMemOperand(object_map, Map::kPrototypeOffset)); | 2528 __ ldr(object_prototype, FieldMemOperand(object_map, Map::kPrototypeOffset)); |
| 2529 __ CompareRoot(object_prototype, Heap::kNullValueRootIndex); |
| 2530 EmitFalseBranch(instr, eq); |
2529 __ cmp(object_prototype, prototype); | 2531 __ cmp(object_prototype, prototype); |
2530 EmitTrueBranch(instr, eq); | 2532 EmitTrueBranch(instr, eq); |
2531 __ CompareRoot(object_prototype, Heap::kNullValueRootIndex); | |
2532 EmitFalseBranch(instr, eq); | |
2533 __ ldr(object_map, FieldMemOperand(object_prototype, HeapObject::kMapOffset)); | 2533 __ ldr(object_map, FieldMemOperand(object_prototype, HeapObject::kMapOffset)); |
2534 __ b(&loop); | 2534 __ b(&loop); |
2535 } | 2535 } |
2536 | 2536 |
2537 | 2537 |
2538 void LCodeGen::DoCmpT(LCmpT* instr) { | 2538 void LCodeGen::DoCmpT(LCmpT* instr) { |
2539 DCHECK(ToRegister(instr->context()).is(cp)); | 2539 DCHECK(ToRegister(instr->context()).is(cp)); |
2540 Token::Value op = instr->op(); | 2540 Token::Value op = instr->op(); |
2541 | 2541 |
2542 Handle<Code> ic = CodeFactory::CompareIC(isolate(), op).code(); | 2542 Handle<Code> ic = CodeFactory::CompareIC(isolate(), op).code(); |
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5560 __ ldr(result, FieldMemOperand(scratch, | 5560 __ ldr(result, FieldMemOperand(scratch, |
5561 FixedArray::kHeaderSize - kPointerSize)); | 5561 FixedArray::kHeaderSize - kPointerSize)); |
5562 __ bind(deferred->exit()); | 5562 __ bind(deferred->exit()); |
5563 __ bind(&done); | 5563 __ bind(&done); |
5564 } | 5564 } |
5565 | 5565 |
5566 #undef __ | 5566 #undef __ |
5567 | 5567 |
5568 } // namespace internal | 5568 } // namespace internal |
5569 } // namespace v8 | 5569 } // namespace v8 |
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