1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/c90-array-lval-2.c b/gcc/testsuite/gcc.dg/c90-array-lval-2.c
new file mode 100644
index 000000000..9f261e05e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/c90-array-lval-2.c
@@ -0,0 +1,20 @@
+/* Test for non-lvalue arrays decaying to pointers: in C99 only.  */
+/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
+/* { dg-do compile } */
+/* { dg-options "-std=iso9899:1990 -pedantic-errors" } */
+
+struct s { char c[17]; };
+
+struct s x;
+
+extern struct s foo (void);
+
+#define ASSERT(v, a)	char v[((a) ? 1 : -1)]
+
+ASSERT (p, sizeof (x.c) == 17);
+ASSERT (q, sizeof (0, x.c) == sizeof (char *));
+ASSERT (r, sizeof ((foo ()).c) == 17);
+/* The non-lvalue array does not decay to a pointer, so the comma expression
+   has (non-lvalue) array type.
+*/
+ASSERT (s, sizeof (0, (foo ()).c) == 17); /* { dg-bogus "array" "bad non-lvalue array handling" } */