1 files changed, 48 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20030709-3.c b/gcc/testsuite/gcc.dg/tree-ssa/20030709-3.c
new file mode 100644
index 000000000..4f9847852
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/20030709-3.c
@@ -0,0 +1,48 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-dom2" } */
+  
+extern void abort (void);
+
+union tree_node;
+typedef union tree_node *tree;
+enum tree_code
+{
+  TREE_VEC = 20,
+};
+struct tree_common
+{
+  int code;
+};
+struct tree_type
+{
+  tree binfo;
+};
+union tree_node
+{
+  struct tree_common common;
+  struct tree_type type;
+};
+void
+record_component_aliases (type)
+     tree type;
+{
+  const tree __z = type->type.binfo;
+  if (type->type.binfo->common.code != TREE_VEC)
+    abort ();
+
+  if (__z->common.code != TREE_VEC)
+    abort ();
+}
+
+/* There should be precisely one load of type.binfo.  If there is
+   more than one, then the dominator optimizations failed.  */
+/* { dg-final { scan-tree-dump-times "type\\.binfo" 1 "dom2"} } */
+ 
+/* There should be precisely one load of common.code.  If there is
+   more than one, then the dominator optimizations failed.  */
+/* { dg-final { scan-tree-dump-times "common\\.code" 1 "dom2"} } */
+ 
+/* There should be one IF conditional.  */
+/* { dg-final { scan-tree-dump-times "if " 1 "dom2"} } */
+
+/* { dg-final { cleanup-tree-dump "dom2" } } */