Visibility attributes should only be set on definition.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68561 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/visibility.c b/test/CodeGen/visibility.c
new file mode 100644
index 0000000..42d66f9
--- /dev/null
+++ b/test/CodeGen/visibility.c
@@ -0,0 +1,30 @@
+// RUN: clang-cc -triple i386-unknown-unknown -fvisibility=default -emit-llvm -o %t %s &&
+// RUN: grep '@g_com = common global i32 0' %t &&
+// RUN: grep '@g_def = global i32 0' %t &&
+// RUN: grep '@g_ext = external global i32' %t &&
+// RUN: grep 'declare void @f_ext()' %t &&
+// RUN: grep 'define i32 @f_def()' %t &&
+// RUN: clang-cc -triple i386-unknown-unknown -fvisibility=protected -emit-llvm -o %t %s &&
+// RUN: grep '@g_com = common protected global i32 0' %t &&
+// RUN: grep '@g_def = protected global i32 0' %t &&
+// RUN: grep '@g_ext = external global i32' %t &&
+// RUN: grep 'declare void @f_ext()' %t &&
+// RUN: grep 'define protected i32 @f_def()' %t &&
+// RUN: clang-cc -triple i386-unknown-unknown -fvisibility=hidden -emit-llvm -o %t %s &&
+// RUN: grep '@g_com = common hidden global i32 0' %t &&a
+// RUN: grep '@g_def = hidden global i32 0' %t &&
+// RUN: grep '@g_ext = external global i32' %t &&
+// RUN: grep 'declare void @f_ext()' %t &&
+// RUN: grep 'define hidden i32 @f_def()' %t &&
+// RUN: true
+
+int g_com;
+int g_def = 0;
+extern int g_ext;
+
+extern void f_ext(void);
+
+int f_def(void) {
+ f_ext();
+ return g_com + g_def + g_ext;
+}