1 files changed, 34 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/vrp15.c b/gcc/testsuite/gcc.dg/tree-ssa/vrp15.c
new file mode 100644
index 000000000..7e7226487
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/vrp15.c
@@ -0,0 +1,34 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-vrp1" } */
+
+
+extern void abort (void) __attribute__ ((__noreturn__));
+union tree_node;
+typedef union tree_node *tree;
+enum tree_code
+{
+  ERROR_MARK,
+  COND_EXPR = 42,
+};
+extern const unsigned char tree_code_length[];
+struct tree_common
+{
+  enum tree_code code:8;
+};
+union tree_node
+{
+  struct tree_common common;
+};
+void
+blah (tree t)
+{
+  if (t->common.code != COND_EXPR)
+    abort ();
+  if (1 >= tree_code_length[t->common.code])
+    abort ();
+
+}
+
+/* { dg-final { scan-tree-dump-times "tree_code_length.42." 1 "vrp1" } } */
+/* { dg-final { cleanup-tree-dump "vrp1" } } */
+