Don't include llvm.metadata variables in archive symbol tables.

llvm-svn: 212344
diff --git a/llvm/lib/Object/IRObjectFile.cpp b/llvm/lib/Object/IRObjectFile.cpp
index 5039405..d019108 100644
--- a/llvm/lib/Object/IRObjectFile.cpp
+++ b/llvm/lib/Object/IRObjectFile.cpp
@@ -240,6 +240,11 @@
   if (GV->hasLinkOnceLinkage() || GV->hasWeakLinkage())
     Res |= BasicSymbolRef::SF_Weak;
 
+  if (auto *Var = dyn_cast<GlobalVariable>(GV)) {
+    if (Var->getSection() == StringRef("llvm.metadata"))
+      Res |= BasicSymbolRef::SF_FormatSpecific;
+  }
+
   return Res;
 }
 
diff --git a/llvm/test/Object/Inputs/trivial.ll b/llvm/test/Object/Inputs/trivial.ll
index 25ece76..622d1e9 100644
--- a/llvm/test/Object/Inputs/trivial.ll
+++ b/llvm/test/Object/Inputs/trivial.ll
@@ -10,3 +10,6 @@
 declare i32 @puts(i8* nocapture) nounwind
 
 declare void @SomeOtherFunction(...)
+
+@var = global i32 0
+@llvm.used = appending global [1 x i8*] [i8* bitcast (i32* @var to i8*)], section "llvm.metadata"
diff --git a/llvm/test/Object/nm-archive.test b/llvm/test/Object/nm-archive.test
index d875d6c..9cb84b2 100644
--- a/llvm/test/Object/nm-archive.test
+++ b/llvm/test/Object/nm-archive.test
@@ -18,6 +18,7 @@
 BITCODE:          U SomeOtherFunction
 BITCODE-NEXT:          T main
 BITCODE-NEXT:          U puts
+BITCODE-NEXT:          D var
 
 
 Test we don't error with an archive with no symtab.