Commit Graph

7 Commits

Author SHA1 Message Date
Reid Kleckner 881dff3683 Lex and ignore Microsoft's #pragma warning(...)
Summary:
This fixes PR17145 and avoids unknown pragma warnings.

This change does not attempt to map MSVC warning numbers to clang
warning flags.  Perhaps in the future we will implement a mapping for
some common subset of Microsoft warnings, but for now we don't.

Reviewers: rsmith

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1652

llvm-svn: 190726
2013-09-13 22:00:30 +00:00
Andy Gibbs aa0b94a2d8 Keep the parentheses in #pragma message (partial revert of r179771).
llvm-svn: 179862
2013-04-19 17:13:17 +00:00
Andy Gibbs 96d93907eb Dropped the parentheses for #pragma message and its kin in the -E output generator.
This was a suggestion by Jordan Rose since the documented format for these pragmas is without the parentheses.  At the same time, I've increased test coverage too for the preprocessed output.

llvm-svn: 179771
2013-04-18 16:49:37 +00:00
Richard Smith c98bb4ed99 Handle _Pragma on a u8, u, or U string literal per the C11 specification. Also
handle raw string literals here. C++11 doesn't yet specify how they will
behave, but discussion on core suggests that we should just strip off
everything but the r-char-sequence.

llvm-svn: 176779
2013-03-09 23:30:15 +00:00
Jordan Rose 127f6eef7e [-E] Emit a rewritten _Pragma on its own line.
1. Teach Lexer that pragma lexers are like macro expansions at EOF.
2. Treat pragmas like #define/#undef when printing.
3. If we just printed a directive, add a newline before any more tokens.
(4. Miscellaneous cleanup in PrintPreprocessedOutput.cpp)

PR10594 and <rdar://problem/11562490> (two separate related problems)

llvm-svn: 158571
2012-06-15 23:33:51 +00:00
Douglas Gregor ca3682d486 Make sure we're producing a newline in the preprocessed output before
emitting a #pragma, whenever one is needed. Fixes <rdar://problem/8417307>.

llvm-svn: 113648
2010-09-10 22:27:29 +00:00
Douglas Gregor c7d6576d54 When we parse a pragma, keep track of how that pragma was originally
spelled (#pragma, _Pragma, __pragma). In -E mode, use that information
to add appropriate newlines when translating _Pragma and __pragma into
#pragma, like GCC does. Fixes <rdar://problem/8412013>.

llvm-svn: 113553
2010-09-09 22:45:38 +00:00