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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 // 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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| 1802 // variable/property load. | 1802 // variable/property load. |
| 1803 if (expr->is_compound()) { | 1803 if (expr->is_compound()) { |
| 1804 { AccumulatorValueContext context(this); | 1804 { AccumulatorValueContext context(this); |
| 1805 switch (assign_type) { | 1805 switch (assign_type) { |
| 1806 case VARIABLE: | 1806 case VARIABLE: |
| 1807 EmitVariableLoad(expr->target()->AsVariableProxy()); | 1807 EmitVariableLoad(expr->target()->AsVariableProxy()); |
| 1808 PrepareForBailout(expr->target(), TOS_REG); | 1808 PrepareForBailout(expr->target(), TOS_REG); |
| 1809 break; | 1809 break; |
| 1810 case NAMED_PROPERTY: | 1810 case NAMED_PROPERTY: |
| 1811 EmitNamedPropertyLoad(property); | 1811 EmitNamedPropertyLoad(property); |
| 1812 PrepareForBailoutForId(expr->CompoundLoadId(), TOS_REG); | 1812 PrepareForBailoutForId(property->LoadId(), TOS_REG); |
| 1813 break; | 1813 break; |
| 1814 case KEYED_PROPERTY: | 1814 case KEYED_PROPERTY: |
| 1815 EmitKeyedPropertyLoad(property); | 1815 EmitKeyedPropertyLoad(property); |
| 1816 PrepareForBailoutForId(expr->CompoundLoadId(), TOS_REG); | 1816 PrepareForBailoutForId(property->LoadId(), TOS_REG); |
| 1817 break; | 1817 break; |
| 1818 } | 1818 } |
| 1819 } | 1819 } |
| 1820 | 1820 |
| 1821 Token::Value op = expr->binary_op(); | 1821 Token::Value op = expr->binary_op(); |
| 1822 __ push(rax); // Left operand goes on the stack. | 1822 __ push(rax); // Left operand goes on the stack. |
| 1823 VisitForAccumulatorValue(expr->value()); | 1823 VisitForAccumulatorValue(expr->value()); |
| 1824 | 1824 |
| 1825 OverwriteMode mode = expr->value()->ResultOverwriteAllowed() | 1825 OverwriteMode mode = expr->value()->ResultOverwriteAllowed() |
| 1826 ? OVERWRITE_RIGHT | 1826 ? OVERWRITE_RIGHT |
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| 2183 } | 2183 } |
| 2184 | 2184 |
| 2185 | 2185 |
| 2186 void FullCodeGenerator::VisitProperty(Property* expr) { | 2186 void FullCodeGenerator::VisitProperty(Property* expr) { |
| 2187 Comment cmnt(masm_, "[ Property"); | 2187 Comment cmnt(masm_, "[ Property"); |
| 2188 Expression* key = expr->key(); | 2188 Expression* key = expr->key(); |
| 2189 | 2189 |
| 2190 if (key->IsPropertyName()) { | 2190 if (key->IsPropertyName()) { |
| 2191 VisitForAccumulatorValue(expr->obj()); | 2191 VisitForAccumulatorValue(expr->obj()); |
| 2192 EmitNamedPropertyLoad(expr); | 2192 EmitNamedPropertyLoad(expr); |
| 2193 PrepareForBailoutForId(expr->ReturnId(), TOS_REG); | 2193 PrepareForBailoutForId(expr->LoadId(), TOS_REG); |
| 2194 context()->Plug(rax); | 2194 context()->Plug(rax); |
| 2195 } else { | 2195 } else { |
| 2196 VisitForStackValue(expr->obj()); | 2196 VisitForStackValue(expr->obj()); |
| 2197 VisitForAccumulatorValue(expr->key()); | 2197 VisitForAccumulatorValue(expr->key()); |
| 2198 __ pop(rdx); | 2198 __ pop(rdx); |
| 2199 EmitKeyedPropertyLoad(expr); | 2199 EmitKeyedPropertyLoad(expr); |
| 2200 context()->Plug(rax); | 2200 context()->Plug(rax); |
| 2201 } | 2201 } |
| 2202 } | 2202 } |
| 2203 | 2203 |
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| 4016 __ push(rax); // Copy of key, needed for later store. | 4016 __ push(rax); // Copy of key, needed for later store. |
| 4017 EmitKeyedPropertyLoad(prop); | 4017 EmitKeyedPropertyLoad(prop); |
| 4018 } | 4018 } |
| 4019 } | 4019 } |
| 4020 | 4020 |
| 4021 // We need a second deoptimization point after loading the value | 4021 // We need a second deoptimization point after loading the value |
| 4022 // in case evaluating the property load my have a side effect. | 4022 // in case evaluating the property load my have a side effect. |
| 4023 if (assign_type == VARIABLE) { | 4023 if (assign_type == VARIABLE) { |
| 4024 PrepareForBailout(expr->expression(), TOS_REG); | 4024 PrepareForBailout(expr->expression(), TOS_REG); |
| 4025 } else { | 4025 } else { |
| 4026 PrepareForBailoutForId(expr->CountId(), TOS_REG); | 4026 PrepareForBailoutForId(prop->LoadId(), TOS_REG); |
| 4027 } | 4027 } |
| 4028 | 4028 |
| 4029 // Call ToNumber only if operand is not a smi. | 4029 // Call ToNumber only if operand is not a smi. |
| 4030 Label no_conversion; | 4030 Label no_conversion; |
| 4031 __ JumpIfSmi(rax, &no_conversion, Label::kNear); | 4031 __ JumpIfSmi(rax, &no_conversion, Label::kNear); |
| 4032 ToNumberStub convert_stub; | 4032 ToNumberStub convert_stub; |
| 4033 __ CallStub(&convert_stub); | 4033 __ CallStub(&convert_stub); |
| 4034 __ bind(&no_conversion); | 4034 __ bind(&no_conversion); |
| 4035 | 4035 |
| 4036 // Save result for postfix expressions. | 4036 // Save result for postfix expressions. |
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| 4539 *context_length = 0; | 4539 *context_length = 0; |
| 4540 return previous_; | 4540 return previous_; |
| 4541 } | 4541 } |
| 4542 | 4542 |
| 4543 | 4543 |
| 4544 #undef __ | 4544 #undef __ |
| 4545 | 4545 |
| 4546 } } // namespace v8::internal | 4546 } } // namespace v8::internal |
| 4547 | 4547 |
| 4548 #endif // V8_TARGET_ARCH_X64 | 4548 #endif // V8_TARGET_ARCH_X64 |
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