Implement -fvisibility.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68369 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/visibility-option.c b/test/CodeGen/visibility-option.c
new file mode 100644
index 0000000..41b77ca
--- /dev/null
+++ b/test/CodeGen/visibility-option.c
@@ -0,0 +1,6 @@
+// RUN: clang-cc -fvisibility=hidden -emit-llvm -o - %s | grep -e "hidden" | count 2
+
+int Global = 10; 
+
+void Func() {}
+