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/opt/nrv6.C b/gcc/testsuite/g++.dg/opt/nrv6.C
new file mode 100644
index 000000000..57ff12e41
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/nrv6.C
@@ -0,0 +1,26 @@
+// PR c++/9993
+// Bug: We were failing to destroy b.
+
+// { dg-do run }
+
+int c, d;
+
+struct Object {
+  Object()                      { ++c; }
+  Object(const Object&)         { ++c; }
+  ~Object()                     { ++d; }
+};
+
+Object function() {
+  int i = 0;
+  do {
+    Object b;
+    if (i++ == 2)
+      return b;
+  } while (1);
+}
+
+int main() {
+  function();
+  return c != d;
+}