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, 39 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.old-deja/g++.other/union2.C b/gcc/testsuite/g++.old-deja/g++.other/union2.C
new file mode 100644
index 000000000..5c2d7dcac
--- /dev/null
+++ b/gcc/testsuite/g++.old-deja/g++.other/union2.C
@@ -0,0 +1,39 @@
+// { dg-do run  }
+// Bug: g++ crashed on empty initializers for unions.
+// Bug: gcc and g++ didn't zero unions with empty initializers.
+// Submitted by J"orn Rennecke <amylaar@cygnus.co.uk>
+
+extern "C" void exit (int);
+
+typedef union u
+{
+  union u *up;
+  void *vp;
+} u;
+
+static u v = {};
+
+void bar (u);
+void baz (u);
+
+void foo()
+{
+       u w = {};
+       u x = { &v };
+       baz (x);
+       bar (w);
+}
+
+void baz (u w) { }
+
+void bar (u w)
+{
+  if (w.up)
+    exit (1);
+}
+
+int main ()
+{
+  foo ();
+  return 0;
+}