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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/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_IA32 | 7 #if V8_TARGET_ARCH_IA32 |
8 | 8 |
9 #include "src/code-factory.h" | 9 #include "src/code-factory.h" |
10 #include "src/code-stubs.h" | 10 #include "src/code-stubs.h" |
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2423 JumpPatchSite patch_site(masm_); // unbound, signals no inlined smi code. | 2423 JumpPatchSite patch_site(masm_); // unbound, signals no inlined smi code. |
2424 CallIC(code, expr->BinaryOperationFeedbackId()); | 2424 CallIC(code, expr->BinaryOperationFeedbackId()); |
2425 patch_site.EmitPatchInfo(); | 2425 patch_site.EmitPatchInfo(); |
2426 context()->Plug(eax); | 2426 context()->Plug(eax); |
2427 } | 2427 } |
2428 | 2428 |
2429 | 2429 |
2430 void FullCodeGenerator::EmitAssignment(Expression* expr) { | 2430 void FullCodeGenerator::EmitAssignment(Expression* expr) { |
2431 DCHECK(expr->IsValidReferenceExpression()); | 2431 DCHECK(expr->IsValidReferenceExpression()); |
2432 | 2432 |
2433 // Left-hand side can only be a property, a global or a (parameter or local) | |
2434 // slot. | |
2435 enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY }; | |
2436 LhsKind assign_type = VARIABLE; | |
2437 Property* prop = expr->AsProperty(); | 2433 Property* prop = expr->AsProperty(); |
2438 if (prop != NULL) { | 2434 LhsKind assign_type = GetAssignType(prop); |
2439 assign_type = (prop->key()->IsPropertyName()) | |
2440 ? NAMED_PROPERTY | |
2441 : KEYED_PROPERTY; | |
2442 } | |
2443 | 2435 |
2444 switch (assign_type) { | 2436 switch (assign_type) { |
2445 case VARIABLE: { | 2437 case VARIABLE: { |
2446 Variable* var = expr->AsVariableProxy()->var(); | 2438 Variable* var = expr->AsVariableProxy()->var(); |
2447 EffectContext context(this); | 2439 EffectContext context(this); |
2448 EmitVariableAssignment(var, Token::ASSIGN); | 2440 EmitVariableAssignment(var, Token::ASSIGN); |
2449 break; | 2441 break; |
2450 } | 2442 } |
2451 case NAMED_PROPERTY: { | 2443 case NAMED_PROPERTY: { |
2452 __ push(eax); // Preserve value. | 2444 __ push(eax); // Preserve value. |
2453 VisitForAccumulatorValue(prop->obj()); | 2445 VisitForAccumulatorValue(prop->obj()); |
2454 __ Move(StoreDescriptor::ReceiverRegister(), eax); | 2446 __ Move(StoreDescriptor::ReceiverRegister(), eax); |
2455 __ pop(StoreDescriptor::ValueRegister()); // Restore value. | 2447 __ pop(StoreDescriptor::ValueRegister()); // Restore value. |
2456 __ mov(StoreDescriptor::NameRegister(), | 2448 __ mov(StoreDescriptor::NameRegister(), |
2457 prop->key()->AsLiteral()->value()); | 2449 prop->key()->AsLiteral()->value()); |
2458 CallStoreIC(); | 2450 CallStoreIC(); |
2459 break; | 2451 break; |
2460 } | 2452 } |
2453 case NAMED_SUPER_PROPERTY: { | |
2454 __ push(eax); | |
2455 VisitForStackValue(prop->obj()->AsSuperReference()->this_var()); | |
2456 EmitLoadHomeObject(prop->obj()->AsSuperReference()); | |
2457 // stack: value, this; eax: home_object | |
2458 Register scratch = ecx; | |
2459 Register scratch2 = edx; | |
2460 __ mov(scratch, result_register()); // home_object | |
2461 __ mov(scratch2, MemOperand(esp, kPointerSize)); // value | |
Igor Sheludko
2014/10/13 11:39:07
Same note here.
Dmitry Lomov (no reviews)
2014/10/13 12:39:51
Done.
| |
2462 __ mov(eax, MemOperand(esp, 0)); // this | |
2463 __ mov(MemOperand(esp, kPointerSize), eax); // this | |
2464 __ mov(MemOperand(esp, 0), scratch); // home_object | |
2465 __ mov(eax, scratch2); | |
2466 // stack: this, home_object. eax: value | |
2467 EmitNamedSuperPropertyStore(prop); | |
2468 break; | |
2469 } | |
2470 case KEYED_SUPER_PROPERTY: { | |
2471 __ push(eax); | |
2472 VisitForStackValue(prop->obj()->AsSuperReference()->this_var()); | |
2473 EmitLoadHomeObject(prop->obj()->AsSuperReference()); | |
2474 __ push(result_register()); | |
2475 VisitForAccumulatorValue(prop->key()); | |
2476 Register scratch = ecx; | |
2477 Register scratch2 = edx; | |
2478 __ mov(scratch2, MemOperand(esp, 2 * kPointerSize)); // value | |
2479 // stack: value, this, home_object; eax: key, edx: value | |
2480 __ mov(scratch, MemOperand(esp, kPointerSize)); // this | |
2481 __ mov(MemOperand(esp, 2 * kPointerSize), scratch); | |
2482 __ mov(scratch, MemOperand(esp, 0)); // home_object | |
2483 __ mov(MemOperand(esp, kPointerSize), scratch); | |
2484 __ mov(MemOperand(esp, 0), eax); | |
2485 __ mov(eax, scratch2); | |
2486 // stack: this, home_object, key; eax: value. | |
2487 EmitKeyedSuperPropertyStore(prop); | |
2488 break; | |
2489 } | |
2461 case KEYED_PROPERTY: { | 2490 case KEYED_PROPERTY: { |
2462 __ push(eax); // Preserve value. | 2491 __ push(eax); // Preserve value. |
2463 VisitForStackValue(prop->obj()); | 2492 VisitForStackValue(prop->obj()); |
2464 VisitForAccumulatorValue(prop->key()); | 2493 VisitForAccumulatorValue(prop->key()); |
2465 __ Move(StoreDescriptor::NameRegister(), eax); | 2494 __ Move(StoreDescriptor::NameRegister(), eax); |
2466 __ pop(StoreDescriptor::ReceiverRegister()); // Receiver. | 2495 __ pop(StoreDescriptor::ReceiverRegister()); // Receiver. |
2467 __ pop(StoreDescriptor::ValueRegister()); // Restore value. | 2496 __ pop(StoreDescriptor::ValueRegister()); // Restore value. |
2468 Handle<Code> ic = | 2497 Handle<Code> ic = |
2469 CodeFactory::KeyedStoreIC(isolate(), strict_mode()).code(); | 2498 CodeFactory::KeyedStoreIC(isolate(), strict_mode()).code(); |
2470 CallIC(ic); | 2499 CallIC(ic); |
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5082 DCHECK_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), | 5111 DCHECK_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), |
5083 Assembler::target_address_at(call_target_address, | 5112 Assembler::target_address_at(call_target_address, |
5084 unoptimized_code)); | 5113 unoptimized_code)); |
5085 return OSR_AFTER_STACK_CHECK; | 5114 return OSR_AFTER_STACK_CHECK; |
5086 } | 5115 } |
5087 | 5116 |
5088 | 5117 |
5089 } } // namespace v8::internal | 5118 } } // namespace v8::internal |
5090 | 5119 |
5091 #endif // V8_TARGET_ARCH_IA32 | 5120 #endif // V8_TARGET_ARCH_IA32 |
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