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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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562 Load(e); | 562 Load(e); |
563 __ CallRuntime(Runtime::kThrowReferenceError, 1); | 563 __ CallRuntime(Runtime::kThrowReferenceError, 1); |
564 } | 564 } |
565 } | 565 } |
566 | 566 |
567 | 567 |
568 void CodeGenerator::UnloadReference(Reference* ref) { | 568 void CodeGenerator::UnloadReference(Reference* ref) { |
569 // Pop a reference from the stack while preserving TOS. | 569 // Pop a reference from the stack while preserving TOS. |
570 Comment cmnt(masm_, "[ UnloadReference"); | 570 Comment cmnt(masm_, "[ UnloadReference"); |
571 int size = ref->size(); | 571 int size = ref->size(); |
572 if (size <= 0) { | 572 if (size > 0) { |
573 // Do nothing. No popping is necessary. | |
574 } else { | |
575 frame_->Pop(r0); | 573 frame_->Pop(r0); |
576 frame_->Drop(size); | 574 frame_->Drop(size); |
577 frame_->Push(r0); | 575 frame_->Push(r0); |
578 } | 576 } |
579 } | 577 } |
580 | 578 |
581 | 579 |
582 // ECMA-262, section 9.2, page 30: ToBoolean(). Convert the given | 580 // ECMA-262, section 9.2, page 30: ToBoolean(). Convert the given |
583 // register to a boolean in the condition code register. The code | 581 // register to a boolean in the condition code register. The code |
584 // may jump to 'false_target' in case the register converts to 'false'. | 582 // may jump to 'false_target' in case the register converts to 'false'. |
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4277 // Slow-case: Non-function called. | 4275 // Slow-case: Non-function called. |
4278 __ bind(&slow); | 4276 __ bind(&slow); |
4279 __ mov(r0, Operand(argc_)); // Setup the number of arguments. | 4277 __ mov(r0, Operand(argc_)); // Setup the number of arguments. |
4280 __ InvokeBuiltin(Builtins::CALL_NON_FUNCTION, JUMP_JS); | 4278 __ InvokeBuiltin(Builtins::CALL_NON_FUNCTION, JUMP_JS); |
4281 } | 4279 } |
4282 | 4280 |
4283 | 4281 |
4284 #undef __ | 4282 #undef __ |
4285 | 4283 |
4286 } } // namespace v8::internal | 4284 } } // namespace v8::internal |
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