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Issue 15735005: Collect type feedback for power-of-2 right operands in BinaryOps. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: ARM INT32 stub Created 7 years, 6 months ago
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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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1049 INLINE(bool IsFalse()); 1049 INLINE(bool IsFalse());
1050 inline bool IsArgumentsMarker(); 1050 inline bool IsArgumentsMarker();
1051 inline bool NonFailureIsHeapObject(); 1051 inline bool NonFailureIsHeapObject();
1052 1052
1053 // Filler objects (fillers and free space objects). 1053 // Filler objects (fillers and free space objects).
1054 inline bool IsFiller(); 1054 inline bool IsFiller();
1055 1055
1056 // Extract the number. 1056 // Extract the number.
1057 inline double Number(); 1057 inline double Number();
1058 inline bool IsNaN(); 1058 inline bool IsNaN();
1059 bool ToInt32(int32_t* value);
1060 bool ToUint32(uint32_t* value);
1059 1061
1060 inline Representation OptimalRepresentation() { 1062 inline Representation OptimalRepresentation() {
1061 if (FLAG_track_fields && IsSmi()) { 1063 if (FLAG_track_fields && IsSmi()) {
1062 return Representation::Smi(); 1064 return Representation::Smi();
1063 } else if (FLAG_track_double_fields && IsHeapNumber()) { 1065 } else if (FLAG_track_double_fields && IsHeapNumber()) {
1064 return Representation::Double(); 1066 return Representation::Double();
1065 } else if (FLAG_track_heap_object_fields && !IsUndefined()) { 1067 } else if (FLAG_track_heap_object_fields && !IsUndefined()) {
1066 // Don't track undefined as heapobject because it's also used as temporary 1068 // Don't track undefined as heapobject because it's also used as temporary
1067 // value for computed fields that may turn out to be Smi. That combination 1069 // value for computed fields that may turn out to be Smi. That combination
1068 // will go tagged, so go tagged immediately. 1070 // will go tagged, so go tagged immediately.
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9629 } else { 9631 } else {
9630 value &= ~(1 << bit_position); 9632 value &= ~(1 << bit_position);
9631 } 9633 }
9632 return value; 9634 return value;
9633 } 9635 }
9634 }; 9636 };
9635 9637
9636 } } // namespace v8::internal 9638 } } // namespace v8::internal
9637 9639
9638 #endif // V8_OBJECTS_H_ 9640 #endif // V8_OBJECTS_H_
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