1 files changed, 35 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/member-init-anon-union.cpp b/clang/test/CodeGenCXX/member-init-anon-union.cpp
new file mode 100644
index 0000000..1ff7537
--- /dev/null
+++ b/clang/test/CodeGenCXX/member-init-anon-union.cpp
@@ -0,0 +1,35 @@
+// RUN: %clang_cc1 %s -std=c++11 -emit-llvm -o - | FileCheck %s
+
+// PR10531.
+
+static union {
+  int a = 42;
+  char *b;
+};
+
+int f() { return a; }
+
+// CHECK: define internal void @__cxx_global_var_init
+// CHECK-NOT: }
+// CHECK: call {{.*}}@"[[CONSTRUCT_GLOBAL:.*]]C1Ev"
+
+
+int g() {
+  union {
+    int a;
+    int b = 81;
+  };
+  // CHECK: define {{.*}}_Z1gv
+  // CHECK-NOT: }
+  // CHECK: call {{.*}}@"[[CONSTRUCT_LOCAL:.*]]C1Ev"
+  return b;
+}
+
+
+// CHECK: define {{.*}}@"[[CONSTRUCT_LOCAL]]C2Ev"
+// CHECK-NOT: }
+// CHECK: store i32 81
+
+// CHECK: define {{.*}}@"[[CONSTRUCT_GLOBAL]]C2Ev"
+// CHECK-NOT: }
+// CHECK: store i32 42