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, 35 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.old-deja/g++.mike/p2846a.C b/gcc/testsuite/g++.old-deja/g++.mike/p2846a.C
new file mode 100644
index 000000000..8825de4e8
--- /dev/null
+++ b/gcc/testsuite/g++.old-deja/g++.mike/p2846a.C
@@ -0,0 +1,35 @@
+// { dg-do run  }
+// Shows that problem of initializing one object's vtable pointer from
+// another object's vtable pointer when doing a default copy of it
+// and the vtable pointer involved is the main one.
+
+// Correct answer is B::print.
+// g++ prints D::print, which is wrong.  Cfront gets is right.
+
+// prms-id: 2846
+
+extern "C" int printf(const char *, ...);
+extern "C" void exit(int);
+
+class B {
+public:
+  virtual void print(void) const { printf("B::print\n"); }
+};
+
+class D : public B {
+public:
+  void print(void) const { printf("D::print\n"); exit(1); }
+  B compute(void) const;
+};
+
+B D::compute(void) const
+{
+  B sub(*(B*)this);
+  return sub;
+}
+
+int main () {
+  D titi;
+  titi.compute().print();
+  return 0;
+}