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Author SHA1 Message Date
Richard Trieu 4cbff5c76f Extend tautological pointer compare and pointer to bool conversion warnings to 
macro arguments.

Previously, these warnings skipped any code in a macro expansion.  Preform an
additional check and warn when the expression and context locations are both
in the macro argument.

The most obvious case not caught is passing a pointer directly to a macro,
i.e 'assert(&array)' but 'assert(&array && "valid array")' is caught.  This is
because macro arguments are not typed and the conversion happens inside the
macro.

llvm-svn: 215251
 2014-08-08 22:41:43 +00:00
Richard Trieu c1888e0c6e Extend -Wtautological-undefined-compare and -Wundefined-bool-conversion to 
trigger on taking the address of a reference that is returned from a function
call.

llvm-svn: 211989
 2014-06-28 23:25:37 +00:00
Richard Trieu f7432755d0 Add -Wtautological-undefined-compare and -Wundefined-bool-conversion warnings 
to detect underfined behavior involving pointers.

llvm-svn: 210372
 2014-06-06 21:39:26 +00:00