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, 32 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/init/value9.C b/gcc/testsuite/g++.dg/init/value9.C
new file mode 100644
index 000000000..4899bd810
--- /dev/null
+++ b/gcc/testsuite/g++.dg/init/value9.C
@@ -0,0 +1,32 @@
+// PR c++/50793
+// { dg-do run }
+
+struct NonTrivial
+{
+  NonTrivial() { }
+};
+
+struct S
+{
+  NonTrivial nt;
+  int i;
+};
+
+int f(S s)
+{
+  s.i = 0xdeadbeef;
+  return s.i;
+}
+
+int g(S s = S())
+{
+  return s.i;
+}
+
+int main()
+{
+  f(S());  // make stack dirty
+
+  if ( g() )
+    __builtin_abort();
+}