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-rw-r--r--clang/test/CodeGenCXX/2005-02-11-AnonymousUnion.cpp32
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diff --git a/clang/test/CodeGenCXX/2005-02-11-AnonymousUnion.cpp b/clang/test/CodeGenCXX/2005-02-11-AnonymousUnion.cpp
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+++ b/clang/test/CodeGenCXX/2005-02-11-AnonymousUnion.cpp
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+// RUN: %clang_cc1 %s -emit-llvm -o -
+
+// Test anonymous union with members of the same size.
+int test1(float F) {
+ union {
+ float G;
+ int i;
+ };
+ G = F;
+ return i;
+}
+
+// test anonymous union with members of differing size.
+int test2(short F) {
+ volatile union {
+ short G;
+ int i;
+ };
+ G = F;
+ return i;
+}
+
+// Make sure that normal unions work. duh :)
+volatile union U_t {
+ short S;
+ int i;
+} U;
+
+int test3(short s) {
+ U.S = s;
+ return U.i;
+}