Commit Graph

7 Commits

Author SHA1 Message Date
Rafael Espindola 9463dce9bf Don't warn for undefined but used decls that are external because of a typedef.
This fixes pr14736. It is fairly ugly, but I don't think we can do much better
as we have to wait at least until the end of the typedef to know if the
function will have external linkage or not.

llvm-svn: 171240
2012-12-29 23:43:00 +00:00
Eli Friedman 77dcc726de Make sure template argument deduction is consistently performed in an unevaluated context.
llvm-svn: 150049
2012-02-08 03:07:05 +00:00
Eli Friedman 130bbd0302 Suppress the used-but-not-defined warning for static data members while I look into a rather nasty bug in the new odr-use marking code.
llvm-svn: 149731
2012-02-04 00:54:05 +00:00
Eli Friedman 3bda6b1f8e Add some code to accurately perform odr-used marking for variables per the C++11 rules.
llvm-svn: 149641
2012-02-02 23:15:15 +00:00
Chandler Carruth a28097da4f Rough fix for PR9323 that prevents Clang from marking copy constructor
declarations as referenced when in fact we're not going to even form
a call in the AST. This is significant because we attempt to allow as an
extension classes with intentionally private and undefined copy
constructors to have temporaries bound to references, and so shouldn't
warn about the lack of definition for that copy constructor when the
class is internal.

Doug, John wasn't really satisfied with the presence of overloading at
all. This is a stop-gap and there may be a better solution. If you can
give me some hints for how you'd prefer to see this solved, I'll happily
switch things over.

llvm-svn: 126480
2011-02-25 08:52:25 +00:00
John McCall 15dd404c46 Don't warn about static const integral data members with in-line constant
initializers just because they don't have a proper out-of-line definition.
Such code is technically ill-formed but is too common and too unlikely to be
a problem to be seriously worth worrying about.

llvm-svn: 126137
2011-02-21 19:25:48 +00:00
John McCall 8377967543 Warn about code that uses variables and functions with internal linkage
without defining them.  This should be an error, but I'm paranoid about
"uses" that end up not actually requiring a definition.  I'll revisit later.

Also, teach IR generation to not set internal linkage on variable
declarations, just for safety's sake.  Doing so produces an invalid module
if the variable is not ultimately defined.

Also, fix several places in the test suite where we were using internal
functions without definitions.

llvm-svn: 126016
2011-02-19 02:53:41 +00:00