commit e7bd89af8aa96a779c0031baf1a21e960a51d0f0
author Rafael Espindola <rafael.espindola@gmail.com> Wed Oct 23 16:46:34 2013 +0000
committer Rafael Espindola <rafael.espindola@gmail.com> Wed Oct 23 16:46:34 2013 +0000
tree 67a7e0a65c1e3ad0d8a69603d3677697d81d40fc
parent bef582b0159e8f0deb606c7700e3590a6f5a4ab2

A decl never becomes unused. Make that explicit in the API.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193248 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Sema/SemaDecl.cpp

diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index bc7be6d..ba78928 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -2801,7 +2801,8 @@
     New->setPure();
 
   // Merge "used" flag.
-  New->setIsUsed(Old->getMostRecentDecl()->isUsed(false));
+  if (Old->getMostRecentDecl()->isUsed(false))
+    New->setIsUsed();
 
   // Merge attributes from the parameters.  These can mismatch with K&R
   // declarations.
@@ -3114,7 +3115,8 @@
   }
 
   // Merge "used" flag.
-  New->setIsUsed(Old->getMostRecentDecl()->isUsed(false));
+  if (Old->getMostRecentDecl()->isUsed(false))
+    New->setIsUsed();
 
   // Keep a chain of previous declarations.
   New->setPreviousDecl(Old);