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* [Sema] Don't artificially forbid BuiltinTemplateDecls in CheckTemplateArgumentDavid Majnemer2016-07-111-1/+1
| | | | | | | | After thinking about it, we don't really need to forbid BuiltinTemplateDecls explicitly. The restriction doesn't really buy us anything. llvm-svn: 275078
* [Sema] Disallow __make_integer_seq from showing up in __make_integer_seqDavid Majnemer2016-07-111-0/+4
| | | | | | | | | We hit over stringent asserts when trying to diagnose. Loosen them as appropriate. This fixes PR28494. llvm-svn: 275047
* [Lex] Add __has_builtin support for __make_integer_seqDavid Majnemer2015-11-051-0/+2
| | | | | | Differential Revision: http://reviews.llvm.org/D14349 llvm-svn: 252115
* [Sema] Implement __make_integer_seqDavid Majnemer2015-11-041-0/+47
This new builtin template allows for incredibly fast instantiations of templates like std::integer_sequence. Performance numbers follow: My work station has 64 GB of ram + 20 Xeon Cores at 2.8 GHz. __make_integer_seq<std::integer_sequence, int, 90000> takes 0.25 seconds. std::make_integer_sequence<int, 90000> takes unbound time, it is still running. Clang is consuming gigabytes of memory. Differential Revision: http://reviews.llvm.org/D13786 llvm-svn: 252036
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