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Issue 18650003: Revert "Convert UnaryOpStub to a HydrogenCodeStub" (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 5 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 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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469 return from_handle(result); 469 return from_handle(result);
470 } 470 }
471 471
472 472
473 Type* Type::Optional(Handle<Type> type) { 473 Type* Type::Optional(Handle<Type> type) {
474 return type->is_bitset() 474 return type->is_bitset()
475 ? from_bitset(type->as_bitset() | kUndefined) 475 ? from_bitset(type->as_bitset() | kUndefined)
476 : Union(type, Undefined()->handle_via_isolate_of(*type)); 476 : Union(type, Undefined()->handle_via_isolate_of(*type));
477 } 477 }
478 478
479
480 Representation Representation::FromType(Handle<Type> type) {
481 if (type->Is(Type::None())) return Representation::None();
482 if (type->Is(Type::Signed32())) return Representation::Integer32();
483 if (type->Is(Type::Number())) return Representation::Double();
484 return Representation::Tagged();
485 }
486
487
488 } } // namespace v8::internal 479 } } // namespace v8::internal
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