llvm-project/clang/test/Modules/Inputs/builtin_sub.h

int getBos1(void) {
  return __builtin_object_size(p, 0);
}

#define IS_CONST(x) __builtin_constant_p(x)
<rdar://problem/13560075> Teach name lookup for builtin names to find hidden declarations. Normal name lookup ignores any hidden declarations. When name lookup for builtin declarations fails, we just synthesize a new declaration at the point of use. With modules, this could lead to multiple declarations of the same builtin, if one came from a (hidden) submodule that was later made visible. Teach name lookup to always find builtin names, so we don't create these redundant declarations in the first place. llvm-svn: 178711 2013-04-04 07:06:26 +08:00			`int getBos1(void) {`
			`return __builtin_object_size(p, 0);`
			`}`

Fix missing builtin identifier infos with PCH+modules Use the current state of "is-moduleness" rather than the state at serialization time so that if we read a builtin identifier from a module that wasn't "interesting" to that module, we will still write it out to a PCH that imports that module. Otherwise, we would get mysterious "unknown builtin" errors when using PCH+modules. rdar://problem/23287656 llvm-svn: 251565 2015-10-29 06:25:37 +08:00			`#define IS_CONST(x) __builtin_constant_p(x)`