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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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_ARM64 | 7 #if V8_TARGET_ARCH_ARM64 |
8 | 8 |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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1549 | 1549 |
1550 case Variable::LOOKUP: { | 1550 case Variable::LOOKUP: { |
1551 Label done, slow; | 1551 Label done, slow; |
1552 // Generate code for loading from variables potentially shadowed by | 1552 // Generate code for loading from variables potentially shadowed by |
1553 // eval-introduced variables. | 1553 // eval-introduced variables. |
1554 EmitDynamicLookupFastCase(var, NOT_INSIDE_TYPEOF, &slow, &done); | 1554 EmitDynamicLookupFastCase(var, NOT_INSIDE_TYPEOF, &slow, &done); |
1555 __ Bind(&slow); | 1555 __ Bind(&slow); |
1556 Comment cmnt(masm_, "Lookup variable"); | 1556 Comment cmnt(masm_, "Lookup variable"); |
1557 __ Mov(x1, Operand(var->name())); | 1557 __ Mov(x1, Operand(var->name())); |
1558 __ Push(cp, x1); // Context and name. | 1558 __ Push(cp, x1); // Context and name. |
1559 __ CallRuntime(Runtime::kLoadContextSlot, 2); | 1559 __ CallRuntime(Runtime::kLoadLookupSlot, 2); |
1560 __ Bind(&done); | 1560 __ Bind(&done); |
1561 context()->Plug(x0); | 1561 context()->Plug(x0); |
1562 break; | 1562 break; |
1563 } | 1563 } |
1564 } | 1564 } |
1565 } | 1565 } |
1566 | 1566 |
1567 | 1567 |
1568 void FullCodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) { | 1568 void FullCodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) { |
1569 Comment cmnt(masm_, "[ RegExpLiteral"); | 1569 Comment cmnt(masm_, "[ RegExpLiteral"); |
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2453 // Generate code for loading from variables potentially shadowed | 2453 // Generate code for loading from variables potentially shadowed |
2454 // by eval-introduced variables. | 2454 // by eval-introduced variables. |
2455 EmitDynamicLookupFastCase(proxy->var(), NOT_INSIDE_TYPEOF, &slow, &done); | 2455 EmitDynamicLookupFastCase(proxy->var(), NOT_INSIDE_TYPEOF, &slow, &done); |
2456 } | 2456 } |
2457 | 2457 |
2458 __ Bind(&slow); | 2458 __ Bind(&slow); |
2459 // Call the runtime to find the function to call (returned in x0) | 2459 // Call the runtime to find the function to call (returned in x0) |
2460 // and the object holding it (returned in x1). | 2460 // and the object holding it (returned in x1). |
2461 __ Mov(x10, Operand(proxy->name())); | 2461 __ Mov(x10, Operand(proxy->name())); |
2462 __ Push(context_register(), x10); | 2462 __ Push(context_register(), x10); |
2463 __ CallRuntime(Runtime::kLoadContextSlot, 2); | 2463 __ CallRuntime(Runtime::kLoadLookupSlot, 2); |
2464 __ Push(x0, x1); // Receiver, function. | 2464 __ Push(x0, x1); // Receiver, function. |
2465 | 2465 |
2466 // If fast case code has been generated, emit code to push the | 2466 // If fast case code has been generated, emit code to push the |
2467 // function and receiver and have the slow path jump around this | 2467 // function and receiver and have the slow path jump around this |
2468 // code. | 2468 // code. |
2469 if (done.is_linked()) { | 2469 if (done.is_linked()) { |
2470 Label call; | 2470 Label call; |
2471 __ B(&call); | 2471 __ B(&call); |
2472 __ Bind(&done); | 2472 __ Bind(&done); |
2473 // Push function. | 2473 // Push function. |
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3807 context()->Plug(x0); | 3807 context()->Plug(x0); |
3808 } else if (var->IsStackAllocated() || var->IsContextSlot()) { | 3808 } else if (var->IsStackAllocated() || var->IsContextSlot()) { |
3809 // Result of deleting non-global, non-dynamic variables is false. | 3809 // Result of deleting non-global, non-dynamic variables is false. |
3810 // The subexpression does not have side effects. | 3810 // The subexpression does not have side effects. |
3811 context()->Plug(var->is_this()); | 3811 context()->Plug(var->is_this()); |
3812 } else { | 3812 } else { |
3813 // Non-global variable. Call the runtime to try to delete from the | 3813 // Non-global variable. Call the runtime to try to delete from the |
3814 // context where the variable was introduced. | 3814 // context where the variable was introduced. |
3815 __ Mov(x2, Operand(var->name())); | 3815 __ Mov(x2, Operand(var->name())); |
3816 __ Push(context_register(), x2); | 3816 __ Push(context_register(), x2); |
3817 __ CallRuntime(Runtime::kDeleteContextSlot, 2); | 3817 __ CallRuntime(Runtime::kDeleteLookupSlot, 2); |
3818 context()->Plug(x0); | 3818 context()->Plug(x0); |
3819 } | 3819 } |
3820 } else { | 3820 } else { |
3821 // Result of deleting non-property, non-variable reference is true. | 3821 // Result of deleting non-property, non-variable reference is true. |
3822 // The subexpression may have side effects. | 3822 // The subexpression may have side effects. |
3823 VisitForEffect(expr->expression()); | 3823 VisitForEffect(expr->expression()); |
3824 context()->Plug(true); | 3824 context()->Plug(true); |
3825 } | 3825 } |
3826 break; | 3826 break; |
3827 break; | 3827 break; |
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4088 } else if (proxy != NULL && proxy->var()->IsLookupSlot()) { | 4088 } else if (proxy != NULL && proxy->var()->IsLookupSlot()) { |
4089 Label done, slow; | 4089 Label done, slow; |
4090 | 4090 |
4091 // Generate code for loading from variables potentially shadowed | 4091 // Generate code for loading from variables potentially shadowed |
4092 // by eval-introduced variables. | 4092 // by eval-introduced variables. |
4093 EmitDynamicLookupFastCase(proxy->var(), INSIDE_TYPEOF, &slow, &done); | 4093 EmitDynamicLookupFastCase(proxy->var(), INSIDE_TYPEOF, &slow, &done); |
4094 | 4094 |
4095 __ Bind(&slow); | 4095 __ Bind(&slow); |
4096 __ Mov(x0, Operand(proxy->name())); | 4096 __ Mov(x0, Operand(proxy->name())); |
4097 __ Push(cp, x0); | 4097 __ Push(cp, x0); |
4098 __ CallRuntime(Runtime::kLoadContextSlotNoReferenceError, 2); | 4098 __ CallRuntime(Runtime::kLoadLookupSlotNoReferenceError, 2); |
4099 PrepareForBailout(expr, TOS_REG); | 4099 PrepareForBailout(expr, TOS_REG); |
4100 __ Bind(&done); | 4100 __ Bind(&done); |
4101 | 4101 |
4102 context()->Plug(x0); | 4102 context()->Plug(x0); |
4103 } else { | 4103 } else { |
4104 // This expression cannot throw a reference error at the top level. | 4104 // This expression cannot throw a reference error at the top level. |
4105 VisitInDuplicateContext(expr); | 4105 VisitInDuplicateContext(expr); |
4106 } | 4106 } |
4107 } | 4107 } |
4108 | 4108 |
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4886 return previous_; | 4886 return previous_; |
4887 } | 4887 } |
4888 | 4888 |
4889 | 4889 |
4890 #undef __ | 4890 #undef __ |
4891 | 4891 |
4892 | 4892 |
4893 } } // namespace v8::internal | 4893 } } // namespace v8::internal |
4894 | 4894 |
4895 #endif // V8_TARGET_ARCH_ARM64 | 4895 #endif // V8_TARGET_ARCH_ARM64 |
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