IRgen support for alias of global variable.
 - PR3818.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67297 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/alias.c b/test/CodeGen/alias.c
new file mode 100644
index 0000000..a625b6a
--- /dev/null
+++ b/test/CodeGen/alias.c
@@ -0,0 +1,13 @@
+// RUN: clang -triple i386-pc-linux-gnu -emit-llvm -o %t %s &&
+// RUN: grep '@g0 = common global i32 0' %t &&
+// RUN: grep '@f1 = alias void ()\* @f0' %t &&
+// RUN: grep '@g1 = alias i32\* @g0' %t &&
+// RUN: grep 'define void @f0() nounwind {' %t
+
+void f0(void) { }
+extern void f1(void);
+extern void f1(void) __attribute((alias("f0")));
+
+int g0;
+extern int g1;
+extern int g1 __attribute((alias("g0")));