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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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| 2939 // object as a receiver to normal functions. Values have to be | 2939 // object as a receiver to normal functions. Values have to be |
| 2940 // passed unchanged to builtins and strict-mode functions. | 2940 // passed unchanged to builtins and strict-mode functions. |
| 2941 Label global_object, receiver_ok; | 2941 Label global_object, receiver_ok; |
| 2942 | 2942 |
| 2943 // Do not transform the receiver to object for strict mode | 2943 // Do not transform the receiver to object for strict mode |
| 2944 // functions. | 2944 // functions. |
| 2945 __ mov(scratch, | 2945 __ mov(scratch, |
| 2946 FieldOperand(function, JSFunction::kSharedFunctionInfoOffset)); | 2946 FieldOperand(function, JSFunction::kSharedFunctionInfoOffset)); |
| 2947 __ test_b(FieldOperand(scratch, SharedFunctionInfo::kStrictModeByteOffset), | 2947 __ test_b(FieldOperand(scratch, SharedFunctionInfo::kStrictModeByteOffset), |
| 2948 1 << SharedFunctionInfo::kStrictModeBitWithinByte); | 2948 1 << SharedFunctionInfo::kStrictModeBitWithinByte); |
| 2949 __ j(not_equal, &receiver_ok, Label::kNear); | 2949 __ j(not_equal, &receiver_ok); // A near jump is not sufficient here! |
| 2950 | 2950 |
| 2951 // Do not transform the receiver to object for builtins. | 2951 // Do not transform the receiver to object for builtins. |
| 2952 __ test_b(FieldOperand(scratch, SharedFunctionInfo::kNativeByteOffset), | 2952 __ test_b(FieldOperand(scratch, SharedFunctionInfo::kNativeByteOffset), |
| 2953 1 << SharedFunctionInfo::kNativeBitWithinByte); | 2953 1 << SharedFunctionInfo::kNativeBitWithinByte); |
| 2954 __ j(not_equal, &receiver_ok, Label::kNear); | 2954 __ j(not_equal, &receiver_ok); |
| 2955 | 2955 |
| 2956 // Normal function. Replace undefined or null with global receiver. | 2956 // Normal function. Replace undefined or null with global receiver. |
| 2957 __ cmp(receiver, factory()->null_value()); | 2957 __ cmp(receiver, factory()->null_value()); |
| 2958 __ j(equal, &global_object, Label::kNear); | 2958 __ j(equal, &global_object, Label::kNear); |
| 2959 __ cmp(receiver, factory()->undefined_value()); | 2959 __ cmp(receiver, factory()->undefined_value()); |
| 2960 __ j(equal, &global_object, Label::kNear); | 2960 __ j(equal, &global_object, Label::kNear); |
| 2961 | 2961 |
| 2962 // The receiver should be a JS object. | 2962 // The receiver should be a JS object. |
| 2963 __ test(receiver, Immediate(kSmiTagMask)); | 2963 __ test(receiver, Immediate(kSmiTagMask)); |
| 2964 DeoptimizeIf(equal, instr->environment()); | 2964 DeoptimizeIf(equal, instr->environment()); |
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| 5513 FixedArray::kHeaderSize - kPointerSize)); | 5513 FixedArray::kHeaderSize - kPointerSize)); |
| 5514 __ bind(&done); | 5514 __ bind(&done); |
| 5515 } | 5515 } |
| 5516 | 5516 |
| 5517 | 5517 |
| 5518 #undef __ | 5518 #undef __ |
| 5519 | 5519 |
| 5520 } } // namespace v8::internal | 5520 } } // namespace v8::internal |
| 5521 | 5521 |
| 5522 #endif // V8_TARGET_ARCH_IA32 | 5522 #endif // V8_TARGET_ARCH_IA32 |
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