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, 26 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/tc1/dr185.C b/gcc/testsuite/g++.dg/tc1/dr185.C
new file mode 100644
index 000000000..2cd4e397f
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr185.C
@@ -0,0 +1,26 @@
+// { dg-do run }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR185: "Named" temporaries and copy elision 
+
+extern "C" void abort(void);
+
+struct A {
+  mutable int value;
+  explicit A(int i) : value(i) {}
+  void mutate(int i) const { value = i; }
+};
+
+int foo() {
+  A const& t = A(1);
+  A n(t);          // can this copy be elided? NO!
+  t.mutate(2);
+  return n.value;  // can this return 2? NO!
+}
+
+int main()
+{
+  int x = foo();
+  if (x != 1)
+    abort();
+  return 0;
+}