Add CommonLinkage to lto (treated same as weak AFAICT)
and llvm-nm (prints as C).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51209 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/lto/lto.cpp b/tools/lto/lto.cpp
index d2cb3b8..0a962fc 100644
--- a/tools/lto/lto.cpp
+++ b/tools/lto/lto.cpp
@@ -65,7 +65,7 @@
   gv->setLinkage(GlobalValue::InternalLinkage); 
 }
 
-// Map LLVM LinkageType to LTO LinakgeType
+// Map LLVM LinkageType to LTO LinkageType
 static LTOLinkageTypes
 getLTOLinkageType(GlobalValue *v)
 {
@@ -76,6 +76,8 @@
     lt = LTOLinkOnceLinkage;
   else if (v->hasWeakLinkage())
     lt = LTOWeakLinkage;
+  else if (v->hasCommonLinkage())
+    lt = LTOCommonLinkage;
   else
     // Otherwise it is internal linkage for link time optimizer
     lt = LTOInternalLinkage;