1 files changed, 20 insertions, 0 deletions
diff --git a/validation/expand/constant-union-size.c b/validation/expand/constant-union-size.c
new file mode 100644
index 00000000..8a16bf3e
--- /dev/null
+++ b/validation/expand/constant-union-size.c
@@ -0,0 +1,20 @@
+union u {
+	char c;
+	float f;
+};
+
+static int foo(void)
+{
+	union u u = { .f = 0.123 };
+	return u.c;
+}
+
+/*
+ * check-name: constant-union-size
+ * check description: the size of the initializer doesn't match
+ * check-command: test-linearize -fdump-ir $file
+ *
+ * check-output-ignore
+ * check-output-contains: load\\.
+ * check-output-excludes: ret\\..*\\$
+ */