efriedma added a comment.
If you move all the #pragma STDC handlers from the lexer to the parser, you
might be able to avoid adding an explicit STDC handler in
PrintPreprocessedOutput.cpp.
================
Comment at: test/Preprocessor/pragma_unknown.c:32
#pragma STDC SO_GREAT // expected-warning {{unknown pragma in STDC namespace}}
#pragma STDC // expected-warning {{unknown pragma in STDC namespace}}
----------------
Maybe add CHECK lines to make sure these come out correctly?
Repository:
rC Clang
https://reviews.llvm.org/D41780
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