Given Decl::isUsed() a flag indicating when to consider the "used"

attribute as part of the calculation. Sema::MarkDeclReferenced(), and
a few other places, want only to consider the "used" bit to determine,
e.g, whether to perform template instantiation. Fixes a linkage issue
with Boost.Serialization.

llvm-svn: 106252

1 files changed, 2 insertions, 1 deletions

diff --git a/clang/lib/Sema/Sema.cpp b/clang/lib/Sema/Sema.cpp
index 8bdf971d965..eadc2ad253d 100644
--- a/clang/lib/Sema/Sema.cpp
+++ b/clang/lib/Sema/Sema.cpp
@@ -226,7 +226,8 @@ void Sema::ActOnEndOfTranslationUnit() {
   // Remove functions that turned out to be used.
   UnusedStaticFuncs.erase(std::remove_if(UnusedStaticFuncs.begin(), 
                                          UnusedStaticFuncs.end(), 
-                                         std::mem_fun(&FunctionDecl::isUsed)), 
+                             std::bind2nd(std::mem_fun(&FunctionDecl::isUsed),
+                                          true)), 
                           UnusedStaticFuncs.end());
 
   // Check for #pragma weak identifiers that were never declared