hanchenye-llvm-project/clang/test/Preprocessor/mi_opt2.h

#ifndef ITERATING
a: X
#else
b: X
#endif
Fix PR6282: the include guard optimization cannot happen if the guard macro is already defined for the first occurrence of the header. If it is, the body will be skipped and not be properly analyzed for the include guard optimization. llvm-svn: 95972 2010-02-12 16:03:27 +08:00			`#ifndef ITERATING`
			`a: X`
			`#else`
			`b: X`
			`#endif`