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6 Commits

Author SHA1 Message Date
Rafael Espindola e3a14bb95b Merge visibility from previous decls before looking at visibility pragma. This 
is a bit fuzzy, but matches gcc behavior and existing code bases seem to
depend on it.

llvm-svn: 160364
 2012-07-17 15:14:47 +00:00
Rafael Espindola 06e1b13209 Ignore visibility attributes after definitions. This matches newer (4.7) gcc's 
behavior and is the first step in fixing pr13338.

llvm-svn: 160104
 2012-07-12 04:32:30 +00:00
Rafael Espindola 6d65d7b63d Reject mismatched "#pragma GCC visibility push" and "#pragma GCC visibility pop". 
llvm-svn: 149559
 2012-02-01 23:24:59 +00:00
Rafael Espindola 273fd772ab Fix our handling of #pragma GCC visibility. 
Now the lexer just produces a token and the parser is the one responsible for
activating it.
This fixes problem like the one pr11797 where the lexer and the parser were not
in sync. This also let us be more strict on where in the file we accept
these pragmas.

llvm-svn: 149014
 2012-01-26 02:02:57 +00:00
John McCall 2faf32c4fd Treat visibility on an enclosing namespace as a non-explicit source of 
visibility.  Fixes PR8713.

I've disabled a test which was testing that you can #pragma pop visibility
to get out of a namespace's visibility attribute.  We should probably just
diagnose that as an error unless it's instrumental to someone's system
headers.

llvm-svn: 121459
 2010-12-10 02:59:44 +00:00
Eli Friedman d986fc8b48 Tests for #pragma GCC visibility. 
llvm-svn: 110316
 2010-08-05 07:00:53 +00:00