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9561a0b3e7
whose decl objects are lazily created the first time they are referenced. Builtin functions are described by the clang/AST/Builtins.def file, which makes it easy to add new ones. This is missing two important pieces: 1. Support for the rest of the gcc builtins. 2. Support for target-specific builtins (e.g. __builtin_ia32_emms). Just adding this builtins reduces the number of implicit function definitions by 6, reducing the # diagnostics from 550 to 544 when parsing carbon.h. I need to add all the i386-specific ones to eliminate several hundred more. ugh. llvm-svn: 39327