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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_MIPS64 | 7 #if V8_TARGET_ARCH_MIPS64 |
8 | 8 |
9 // Note on Mips implementation: | 9 // Note on Mips implementation: |
10 // | 10 // |
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2631 MemOperand location = VarOperand(var, a1); | 2631 MemOperand location = VarOperand(var, a1); |
2632 __ ld(a3, location); | 2632 __ ld(a3, location); |
2633 __ LoadRoot(a4, Heap::kTheHoleValueRootIndex); | 2633 __ LoadRoot(a4, Heap::kTheHoleValueRootIndex); |
2634 __ Branch(&assign, ne, a3, Operand(a4)); | 2634 __ Branch(&assign, ne, a3, Operand(a4)); |
2635 __ li(a3, Operand(var->name())); | 2635 __ li(a3, Operand(var->name())); |
2636 __ push(a3); | 2636 __ push(a3); |
2637 __ CallRuntime(Runtime::kThrowReferenceError, 1); | 2637 __ CallRuntime(Runtime::kThrowReferenceError, 1); |
2638 // Perform the assignment. | 2638 // Perform the assignment. |
2639 __ bind(&assign); | 2639 __ bind(&assign); |
2640 EmitStoreToStackLocalOrContextSlot(var, location); | 2640 EmitStoreToStackLocalOrContextSlot(var, location); |
2641 | |
2642 } else if (!var->is_const_mode() || op == Token::INIT_CONST) { | 2641 } else if (!var->is_const_mode() || op == Token::INIT_CONST) { |
2643 if (var->IsLookupSlot()) { | 2642 if (var->IsLookupSlot()) { |
2644 // Assignment to var. | 2643 // Assignment to var. |
2645 __ li(a4, Operand(var->name())); | 2644 __ li(a4, Operand(var->name())); |
2646 __ li(a3, Operand(Smi::FromInt(strict_mode()))); | 2645 __ li(a3, Operand(Smi::FromInt(strict_mode()))); |
2647 // jssp[0] : mode. | 2646 // jssp[0] : mode. |
2648 // jssp[8] : name. | 2647 // jssp[8] : name. |
2649 // jssp[16] : context. | 2648 // jssp[16] : context. |
2650 // jssp[24] : value. | 2649 // jssp[24] : value. |
2651 __ Push(v0, cp, a4, a3); | 2650 __ Push(v0, cp, a4, a3); |
2652 __ CallRuntime(Runtime::kStoreLookupSlot, 4); | 2651 __ CallRuntime(Runtime::kStoreLookupSlot, 4); |
2653 } else { | 2652 } else { |
2654 // Assignment to var or initializing assignment to let/const in harmony | 2653 // Assignment to var or initializing assignment to let/const in harmony |
2655 // mode. | 2654 // mode. |
2656 DCHECK((var->IsStackAllocated() || var->IsContextSlot())); | 2655 DCHECK((var->IsStackAllocated() || var->IsContextSlot())); |
2657 MemOperand location = VarOperand(var, a1); | 2656 MemOperand location = VarOperand(var, a1); |
2658 if (generate_debug_code_ && op == Token::INIT_LET) { | 2657 if (generate_debug_code_ && op == Token::INIT_LET) { |
2659 // Check for an uninitialized let binding. | 2658 // Check for an uninitialized let binding. |
2660 __ ld(a2, location); | 2659 __ ld(a2, location); |
2661 __ LoadRoot(a4, Heap::kTheHoleValueRootIndex); | 2660 __ LoadRoot(a4, Heap::kTheHoleValueRootIndex); |
2662 __ Check(eq, kLetBindingReInitialization, a2, Operand(a4)); | 2661 __ Check(eq, kLetBindingReInitialization, a2, Operand(a4)); |
2663 } | 2662 } |
2664 EmitStoreToStackLocalOrContextSlot(var, location); | 2663 EmitStoreToStackLocalOrContextSlot(var, location); |
2665 } | 2664 } |
| 2665 } else if (IsSignallingAssignmentToConst(var, op, strict_mode())) { |
| 2666 __ CallRuntime(Runtime::kThrowConstAssignError, 0); |
2666 } | 2667 } |
2667 // Non-initializing assignments to consts are ignored. | |
2668 } | 2668 } |
2669 | 2669 |
2670 | 2670 |
2671 void FullCodeGenerator::EmitNamedPropertyAssignment(Assignment* expr) { | 2671 void FullCodeGenerator::EmitNamedPropertyAssignment(Assignment* expr) { |
2672 // Assignment to a property, using a named store IC. | 2672 // Assignment to a property, using a named store IC. |
2673 Property* prop = expr->target()->AsProperty(); | 2673 Property* prop = expr->target()->AsProperty(); |
2674 DCHECK(prop != NULL); | 2674 DCHECK(prop != NULL); |
2675 DCHECK(prop->key()->IsLiteral()); | 2675 DCHECK(prop->key()->IsLiteral()); |
2676 | 2676 |
2677 // Record source code position before IC call. | 2677 // Record source code position before IC call. |
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5241 Assembler::target_address_at(pc_immediate_load_address)) == | 5241 Assembler::target_address_at(pc_immediate_load_address)) == |
5242 reinterpret_cast<uint64_t>( | 5242 reinterpret_cast<uint64_t>( |
5243 isolate->builtins()->OsrAfterStackCheck()->entry())); | 5243 isolate->builtins()->OsrAfterStackCheck()->entry())); |
5244 return OSR_AFTER_STACK_CHECK; | 5244 return OSR_AFTER_STACK_CHECK; |
5245 } | 5245 } |
5246 | 5246 |
5247 | 5247 |
5248 } } // namespace v8::internal | 5248 } } // namespace v8::internal |
5249 | 5249 |
5250 #endif // V8_TARGET_ARCH_MIPS64 | 5250 #endif // V8_TARGET_ARCH_MIPS64 |
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