Commit Graph

8 Commits

Author SHA1 Message Date
Rafael Espindola 46d2b6bacf Partially revert r175117 so that we don't break assumptions about how
static functions in extern "C" contexts are mangled. Should fix the
bootstrap.

llvm-svn: 175132
2013-02-14 03:31:26 +00:00
Rafael Espindola 5bda63f16b merge hasCLanguageLinkage and isExternC. Keep the shorter name.
I added hasCLanguageLinkage while fixing some language linkage bugs some
time ago so that I wouldn't have to check all users of isExternC. It turned
out to be a much longer detour than expected, but this patch finally
merges the two again. The isExternC function now implements just the
standard notion of having C language linkage.

llvm-svn: 175119
2013-02-14 01:47:04 +00:00
Rafael Espindola f4187658fa Add a getLanguageLinkage method to VarDecls and FunctionDecls. Use it to fix
some cases where functions with no language linkage were being treated as having
C language linkage. In particular, don't warn in

extern "C" {
  static NonPod foo();
}

Since getLanguageLinkage checks the language linkage, the linkage computation
cannot use the language linkage. Break the loop by checking just the context
in the linkage computation.

llvm-svn: 175117
2013-02-14 01:18:37 +00:00
Rafael Espindola d60589ad39 Add a test from pr14898.
llvm-svn: 172283
2013-01-12 01:01:06 +00:00
Rafael Espindola 3bd836a58e Handle static functions being redeclared in function scope.
Fixes pr14861.

llvm-svn: 171978
2013-01-09 16:34:58 +00:00
Rafael Espindola 3c98afe2ae Assert that redeclarations have the same linkage.
It is somewhat hard to test linkage, so I decided to try to add an assert. This
already found some interesting cases where there were different.

llvm-svn: 171585
2013-01-05 01:28:37 +00:00
Rafael Espindola 576127d90e Reject overloading of two static extern C functions.
This patch moves hasCLanguageLinkage to be VarDecl and FunctionDecl methods
so that they can be used from SemaOverload.cpp and then fixes the logic
in Sema::IsOverload.

llvm-svn: 171193
2012-12-28 14:21:58 +00:00
Rafael Espindola cffa95d73f Implement dcl.link paragraph 5.
The language linkage of redeclarations must match. GCC was already reporting
an error for this.

llvm-svn: 171139
2012-12-27 03:56:20 +00:00