obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 55 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20030710-1.c b/gcc/testsuite/gcc.dg/tree-ssa/20030710-1.c
new file mode 100644
index 000000000..c344d48e9
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/20030710-1.c
@@ -0,0 +1,55 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-dom2" } */
+
+extern void abort (void);
+union tree_node;
+typedef union tree_node *tree;
+struct tree_vec
+{
+  int length;
+  tree a[1];
+};
+struct tree_type
+{
+  tree binfo;
+};
+union tree_node
+{
+  struct tree_type type;
+  struct tree_vec vec;
+};
+void
+record_component_aliases (type)
+     tree type;
+{
+  if (type->type.binfo->vec.length)
+    abort ();
+  for (; ((
+	    {
+	    const tree __z = type->type.binfo;
+	    if (type->type.binfo->vec.length)
+	    abort ();
+ type->type.binfo->vec.a[4];}
+	  )->vec.length);)
+    {
+      if (4 >= type->type.binfo->vec.length)
+	abort ();
+      blah ();
+    }
+}
+
+/* The call to blah should have been eliminated.  If the call is not
+   eliminated, then dominator optimizations failed and it'll be
+   impossible to delete other unnecessary code.  */
+/* { dg-final { scan-tree-dump-not "blah \\(\\)" "dom2" } } */
+  
+/* There should be two IF conditionals.  */
+/* { dg-final { scan-tree-dump-times "if " 2 "dom2"} } */
+                                                                                
+/* There should be a single load of type.binfo.  */
+/* { dg-final { scan-tree-dump-times "type\\.binfo" 1 "dom2"} } */
+
+/* There should be two loads of vec.length.  */
+/* { dg-final { scan-tree-dump-times "vec.length" 2 "dom2"} } */
+
+/* { dg-final { cleanup-tree-dump "dom2" } } */