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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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| 2111 } | 2111 } |
| 2112 __ Set(ecx, Immediate(Smi::FromInt(JUMPING + i))); | 2112 __ Set(ecx, Immediate(Smi::FromInt(JUMPING + i))); |
| 2113 __ jmp(&unlink); | 2113 __ jmp(&unlink); |
| 2114 } | 2114 } |
| 2115 } | 2115 } |
| 2116 | 2116 |
| 2117 // Unlink from try chain; be careful not to destroy the TOS. | 2117 // Unlink from try chain; be careful not to destroy the TOS. |
| 2118 __ bind(&unlink); | 2118 __ bind(&unlink); |
| 2119 // Reload sp from the top handler, because some statements that we | 2119 // Reload sp from the top handler, because some statements that we |
| 2120 // break from (eg, for...in) may have left stuff on the stack. | 2120 // break from (eg, for...in) may have left stuff on the stack. |
| 2121 frame_->Pop(eax); // preserve the TOS in a register across stack manipulation | 2121 // Preserve the TOS in a register across stack manipulation. |
| 2122 frame_->Pop(eax); |
| 2122 ExternalReference handler_address(Top::k_handler_address); | 2123 ExternalReference handler_address(Top::k_handler_address); |
| 2123 __ mov(edx, Operand::StaticVariable(handler_address)); | 2124 __ mov(edx, Operand::StaticVariable(handler_address)); |
| 2124 const int kNextOffset = StackHandlerConstants::kNextOffset + | 2125 const int kNextOffset = StackHandlerConstants::kNextOffset + |
| 2125 StackHandlerConstants::kAddressDisplacement; | 2126 StackHandlerConstants::kAddressDisplacement; |
| 2126 __ lea(esp, Operand(edx, kNextOffset)); | 2127 __ lea(esp, Operand(edx, kNextOffset)); |
| 2127 | 2128 |
| 2128 frame_->Pop(Operand::StaticVariable(handler_address)); | 2129 frame_->Pop(Operand::StaticVariable(handler_address)); |
| 2129 frame_->Drop(StackHandlerConstants::kSize / kPointerSize - 1); | 2130 frame_->Drop(StackHandlerConstants::kSize / kPointerSize - 1); |
| 2130 // next_sp popped. | 2131 // Next_sp popped. |
| 2131 frame_->Push(eax); // preserve the TOS in a register across stack manipulatio
n | 2132 // Preserve the TOS in a register across stack manipulation. |
| 2133 frame_->Push(eax); |
| 2132 | 2134 |
| 2133 // --- Finally block --- | 2135 // --- Finally block --- |
| 2134 __ bind(&finally_block); | 2136 __ bind(&finally_block); |
| 2135 | 2137 |
| 2136 // Push the state on the stack. | 2138 // Push the state on the stack. |
| 2137 frame_->Push(ecx); | 2139 frame_->Push(ecx); |
| 2138 | 2140 |
| 2139 // We keep two elements on the stack - the (possibly faked) result | 2141 // We keep two elements on the stack - the (possibly faked) result |
| 2140 // and the state - while evaluating the finally block. Record it, so | 2142 // and the state - while evaluating the finally block. Record it, so |
| 2141 // that a break/continue crossing this statement can restore the | 2143 // that a break/continue crossing this statement can restore the |
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| 5109 | 5111 |
| 5110 // Slow-case: Go through the JavaScript implementation. | 5112 // Slow-case: Go through the JavaScript implementation. |
| 5111 __ bind(&slow); | 5113 __ bind(&slow); |
| 5112 __ InvokeBuiltin(Builtins::INSTANCE_OF, JUMP_FUNCTION); | 5114 __ InvokeBuiltin(Builtins::INSTANCE_OF, JUMP_FUNCTION); |
| 5113 } | 5115 } |
| 5114 | 5116 |
| 5115 | 5117 |
| 5116 #undef __ | 5118 #undef __ |
| 5117 | 5119 |
| 5118 } } // namespace v8::internal | 5120 } } // namespace v8::internal |
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