1 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr120354.c b/gcc/testsuite/gcc.dg/pr120354.c
new file mode 100644
index 0000000..6749737
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr120354.c
@@ -0,0 +1,33 @@
+/* PR120354: Test for -Wflex-array-member-not-at-end on union with 
+   flexible array members.  */ 
+/* { dg-do compile } */
+/* { dg-options "-Wflex-array-member-not-at-end" } */
+
+struct P {};
+union L {};
+
+union X {
+    int x[];
+    struct P y;
+};
+
+struct T {
+    union X x;	/* { dg-warning "structure containing a flexible array member is not at the end of another structure" } */
+    int plug;
+};
+
+struct Q {
+    int len;
+    int data[];
+};
+
+union Y {
+    struct Q q;
+    union L y;
+};
+
+struct S {
+    union Y y;  /* { dg-warning "structure containing a flexible array member is not at the end of another structure" } */
+    int plug;
+};
+